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1. 81 Select All Clear 21 Caneel Figure 5 34 Initialization Status Box The Initialize Status box Figure 5 34 displays the progress of one or more full logical drive initializations To cancel ALL drive initializations at the same time Click the Select All button which selects all drives for cancellation then click Cancel to stop all the initializations To cancel individual drive initializations Check the box es of the drive s to cancel then click Cancel to stop only those initializations If all drives are selected for cancellation and you wish to reverse that Click the Clear All button which deselects all drives for cancellation Click Close to close the Initialize Status box at any time Manual No 771961 5 37 Process Status Monitoring Rebuild Status If a rebuild process is currently underway open the Rebuild Status box as shown in Figure 5 35 to monitor the progress of or cancel the process Rebuild Status Figure 5 35 Select Rebuild Status Rebuild Status Controller 2 Figure 5 36 Rebuild Status Box The Rebuild Status box Figure 5 36 displays the progress of a physical drive rebuild The command rebuilds all logical drives that occupy any portion of the targeted physical drive Click Cancel to stop the rebuild You may need to check the Views menu to see if Rebuild Status is still enabled If so you may need to cancel other rebuilds as
2. 3 BaudRate 19200 Figure 4 19 Settings Dialog Box Communication In the Settings dialog box under the Communication tab Figure 4 19 you have the option to do any of the following Baud Rate Select the baud rate appropriate to your communication hardware Port Select the COM port at which your communication hardware resides Parity Select the type of parity for communication sessions None Even Odd 4 16 GAM Client v2 15 User s Manual Configuration Mark Space Stop Bits Select the number of stop bits required for communication sessions 1 1 5 2 Data Bits Select the number of data bits required for communication sessions 4 5 6 7 8 Finish by doing one of the following Click OK to accept the communication settings and exit the Settings dialog box or Click Cancel to leave original settings unchanged or Click another Settings tab to set additional user preferences Event Editor A hard disk has failed Figure 4 20 Settings Dialog Box Event Editor In the Settings dialog box under the Event Editor tab Figure 4 20 you have the option to do any of the following Manual No 771961 4 17 Setting and Modifying User Preferences GAM ID User Event Severity Default Select a GAM event ID to edit from the GAM ID list box Enter your own number for this event in the User Event list box or keep the
3. Enable by checking or disable by unchecking any of the following options Conservative Cache Mode Turns off write cache while a failover condition persists allowing an extra degree of data safety SAF TE Use of UPS Enables monitoring of uninterruptable power supply if it is also supported by the system enclosure Restrict Reassign to One Block Restricts a reassign to the failing block If disabled reassigns will be for the entire current I O blocks not all of them failing Smart Large Host Transfers For transfers larger than the stripe size allows selection of Coalesce fewer disconnects on host data Manual No 771961 4 23 Setting and Modifying Controller Options transfers Elevator Ordering Of Device Queues Attempts to keep the drive heads moving in the same direction as long as possible to improve performance Assumes LBAs are physically sequentially ordered Coalesce Device Queues Joins data from adjacent I Os into a single T O to improve performance Super Read Ahead SRA Extends the Read Ahead process by always reading an extra cache line on a read request and reading an additional cache line when a cache hit occurs Most useful for applications where read sequential data is high True Verification Of Data Performs a true verify with data comparison Write Through Verify During error handling this turns on Force Unit Access for reads and writes Operational Fault Manag
4. Figure 3 7 Window Menu Global Array Manager Client s Window menu Figure 3 7 is a standard feature of Windows 95 and Windows NT It is implemented as such in Global Array Manager Client Manual No 771961 3 11 Navigating Global Array Manager Client Help Menu Contents F1 About Global Array Manager Figure 3 8 Help Menu Global Array Manager Client s Help menu Figure 3 8 identifies the on line help options available within the Global Array Manager Contents Displays a list of available Global Array Manager help topics About Global Array Manager Displays the Windows standard About box Toolbar and Toolbar Icons GAM Client contains a toolbar Figure 3 9 in the Global Array Manager window Figure 3 9 Toolbar Each toolbar button corresponds to a function available from the menu bar RAID Assist Brings up the Raid Assist dialog box for RAID controller configuration Scan Devices Scans for new devices recently added and not currently identified within GAM Display Controller Information Displays key information about the currently selected DAC or HBA 3 12 GAM Client v2 15 User s Manual 7 Startup amp Navigation Statistics View Toggles the Statistics View window for the currently selected DAC or HBA Error Table Displays a table of bad block and request sense data Sign On Enables GAM s configuration and administration functions to Administr
5. Figure 4 27 Controller Options Dialog Box For SCSI HBA In the Controller Options dialog box Figure 4 27 you have the option to do any of the following Enable by checking or disable by unchecking the following SCSI Device Parameters Wide Negotiation Allows the controller to negotiate at wide data transfer rates Disconnect Allows the target to disconnect from the initiator Change the SCSI ID of this HBA Change either of the following Startup Parameters Spin up No Spin up Controller spin up Delay Number of seconds before physical device startup Change the following SCSI Device Parameter Maximum data transfer rate of the disk side channels Speeds are Asynchronous 5 MHz 10 MHz and 20 MHz Click the OK button to accept the changes or the Cancel button to delete them 4 28 GAM Client v2 15 User s Manual Configuration Running RAID Assist RAID Assist is the Global Array Manager Client s wizard for the setup and configuration of new logical drives and disk arrays In its simplest form RAID Assist provides an Auto Configuration option which immediately configures all available drives into an optimal RAID 5 configuration RAID Assist s Assisted Configuration sets up a new array according to predefined parameters and asks the user questions to gather the key information necessary to build the array If configuration needs go beyond what Auto or Assisted Configuration
6. Global Status View Toggles the Global Status View window The Global Status View window opens by default when Global Array Manager Client starts Controller View Toggles the Controller View window showing channel ID target information and physical device logical drive configurations for the controller selected in the controller selection box Global Array Manager window Statistics View Toggles the Statistics View window display for the controller selected in the controller selection box Global Array Manager window Log Information Viewer Toggles the Log Information Viewer a window showing a log of recent system error and status event messages The Log Information Viewer opens by default when Global Array Manager Client starts Initialize Status Displays the progress percent complete of an Manual No 771961 3 7 Navigating Global Array Manager Client ongoing full initialization of one or more drives Rebuild Status Displays the progress percent complete of an ongoing device rebuild Consistency Check Status Displays the progress percent complete of an ongoing logical drive consistency check Expand Capacity Status Displays the progress percent complete of an ongoing data restriping process across the target RAID group A Caution Once the Expand Array Expand Capacity process has begun you should not attempt to interrupt that process before completion Data loss will result You may however moni
7. conor Figure 4 6 Open Configuration Dialog Box 2 Click Open to access the configuration file A window displays key elements of the configuration you are about to open Figure 4 7 Open Configuration 204 32 130 200 Controller 0 C Program Files Mylex GAM Client myconfig gcf Lu ETE d Figure 4 7 Stored Configuration Information to be Opened 4 6 GAM Client v2 15 User s Manual Configuration 3 Click Apply to apply the configuration to the controller or click Cancel to stop without applying the saved configuration If you click apply you will be asked to confirm your decision to overwrite the existing configuration Setting and Modifying User Preferences Open Settings as shown in Figure 4 8 Sign On Define Server Groups Select Current Server Group Ctrl G Select Current Controller Ctrl C Raid Assist Initialize Logical Drives Display Controller Information Controller Options Intelligent BBU Scan Devices Advanced Functions Settings Figure 4 8 Select Settings Manual No 771961 4 7 Setting and Modifying User Preferences Alert Preferences Settings 2 x Alert Preferences Alarm Setup Communication Event Editor r Event Log Append to log file I Enable event logging C Replace log file faam2cllog Browse Enable Global Alerts for Severity
8. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 peration CtlO Chn TgtO Tote Reads CHUB Chn Tat Tatt Reads Y multiplier Y offset Y autoscale Value Yes 1 0 0 63 66 Yes 1 0 0 7 65 mi Pause Graph Wpticns Time Scale Unit b sec Apply Graph Data E Past Present Figure 5 23 Statistics View Line Graph Display The Line Graph page displays data for the analysis strings specified in the display window in the form of lines generated on a grid with time units along the horizontal axis and percentage along the vertical axis To set the Time Scale Unit 1 Enter a number of seconds in the text box 2 Click Apply Each horizontal grid mark s value for example from 0 to 1 1 to 2 etc will equal the number of seconds you ve specified The Graph Data box allows you to see currently generated data from the selected server Present or previously saved data Past from the buffer or from a data file selected within the Settings page Manual No 771961 5 25 Performance Monitoring To pause or resume the data display Click Pause or Resume if previously paused To change Graph Options for a particular analysis string 1 Select the analysis string of interest in the display window 2 Click Graph Options You can change whether this string s data will be visible whether the data will autoscale along the Y axis the
9. Item 6 is an icon that represents a currently unselected file server running the GAM Server component The icon identifies the same information described above under currently selected file server Components of the Log Information Viewer 7 Item 7 in Figure 3 1 is the GAM Client Log Information Viewer Each line in the Log Information Viewer identifies a single event error status warning etc which was noted during monitoring by a file server running GAM Server and was transmitted by that server to this client workstation Relevant details accompany the event 3 4 GAM Client v2 15 User s Manual Startup amp Navigation Event ID Displays an icon showing whether the event is informational cautionary a warning etc plus the identification number assigned to this event Severity The severity level of this event Source The IP address or name of the file server that is the sender source of this event Source Time Day of the week month day of the month time of day and year at the source file server s location when this event occurred Device Address Relevant channel target activity and other data pertaining to why this event posted Description Text of the message describing what occurred Sequence Seq Number representing where this event fell in a sequence of possibly related events Local Time Day of the week month day of the month time of day and year at the local client work
10. Controller 2 Figure 5 40 Expand Capacity Status Box The Expand Capacity Status box Figure 5 40 displays the progress of a disk array capacity expansion WARNING You should not attempt to cancel an Expand Array Expand Capacity process data loss will result Click Close to close the Expand Capacity Status box at any time 5 40 GAM Client v2 15 User s Manual Chapter 6 Maintenance Processes Introduction Global Array Manager Client maintenance processes include the following activities which you may need to perform from time to time on arrays that use redundancy and or fault tolerance or to maintain the most up to date firmware maintenance releases Running a consistency check on a logical drive to examine and optionally restore consistency parity Encountered errors may be written to the Error Table Running a data rebuild on a physical drive that replaces a drive that went dead or offline Upgrading Mylex PCI Disk Array Controller firmware Running a Logical Drive Consistency Check From time to time it is prudent to run a consistency check on each of your fault tolerant logical drives This check scans the logical drive to determine whether consistency data has become corrupted and needs to be restored If you have reason to believe that logical drive consistency data is corrupted or if you wish to run a consistency check for maintenance reasons perform the following procedure 1 Double c
11. gt Frame Control 2KB X Gk Figure 4 26 Fibre Controller Options Dialog Box In the Fibre Controller Options dialog box Figure 4 26 you have the option to do any of the following Enable Disable Node Name Retention When enabled each controller shares its node name with its partner controller and those names are used through all phases of failover and failback Set Hard Loop IDs for each controller and port combination Enable a controller port combination by checking its check box Values allow use of the same Loop IDs all the time Some Fibre HBAs work better with this Set PCI Latency Control Controls the amount of data each Front end Fibre Protocol Processor can burst across the primary PCI bus before relinquishing bus ownership Settings are Short Medium Long A setting of Long is recommended Set Frame Control Allows adjustment of the FC chip s frame size Recording Your Changes Click OK in the Advanced Controller Options Expert Controller Options and or Fibre Controller Options dialog boxes to accept the changes or the Cancel button to delete them Manual No 771961 4 27 Setting and Modifying Controller Options SCSI Host Bus Adapters Controller Options BE r SCSI Device Parameters SCSI ID fo E Asynchronous C 5MHz 10MHz 20MHz Enable Disconnect m Startup Parameters Spin up Spin up x Delay 1 Sec
12. tower The physical devices present on each channel specifying the target ID capacity of the device device type and device status The logical drives configured on the controller specifying the logical drive number capacity of the logical drive configured RAID level and logical drive status Note Dual active controllers External RAID Controller operation will show at target ID 6 AND 7 in each channel column This only appears if the selected controller is operating in duplex 5 6 GAM Client v2 15 User s Manual Monitoring Controller View 192 1 x Physical Drives MB Channel 0 Figure 5 6 SCSI HBA Controller View With Multiple LUN Device Figure 5 6 above shows the Controller View for a typical SCSI Host Bus Adapter The special icon appearing on Channel 0 Target ID 0 indicates that a multiple LUN device is present at that location Supported multiple LUN devices in GAM Version 2 15 are External RAID Controllers such as a Mylex DAC960SX Viewing the configuration from the SCSI HBA s point of view in this way you can actually see the logical units connected to the External RAID Controller by double clicking the special controller icon When you do a Target ID View emerges showing basic information about the LUNs configured on that External RAID controller Figure 5 7 Manual No 771961 5 7 Controller Monitoring Target ID View Channel 0 OF x Logical Units T
13. 4 05 27 04 01 1998 04 04 1998 229376 Ri 41n n Figure 6 6 Additional Flash File Information 6 6 GAM Client v2 15 User s Manual Maintenance Processes 4 Compare the information for the new with the current information to confirm that a flash is warranted for example that the contains a newer version of code 5 Click Start Flash Because flashing new code to the controller erases what was there previously two levels of confirmation are required to proceed with the flash 6 Click OK at the first confirmation message 7 Type YES then click OK at the second confirmation message The controller will be updated with the new code contained in the IMG file Manual No 771961 6 7 Using the Global Array Manager Flash Utility 6 8 GAM Client v2 15 User s Manual Overview Appendix A Error Codes Global Array Manager classifies the events it records into five severity levels described in the following table Table A 1 Severity Level Priorities and Descriptions 4 Informational Critical Level 0 Description Controller failure The failure of a major component within the array enclosure For example a power supply fan or physical drive A consistency check fails or a rebuild on a drive Stopped because of errors Global Array Manager has failed to kill a drive or failed to start a rebuild Messages such as sign ons and system startups When a consi
14. Application Setup Dialog Box 3 In the Launch Application box Enable or disable this Application entry using the Enabled check box Enable Launch Only Once if you want to prevent the application from launching again if GAM detects that it is already running Enter the name of an application to launch should certain events or messages require it f you don t remember the name or path of the application click the Browse button 4 To test the application launch using the settings you ve input click Test 5 When you are satisfied with the application you ve set up click OK Your new application entry appears in the lower window of the Alarm Setup dialog box Refer back to Figure 4 17 for an example Remove an Application to Launch 1 Select the Launch Application alarm type in the upper window of Alarm Setup 2 Select the Launch Application entry to remove in the lower window of Alarm Setup 3 Click Remove Manual No 771961 4 15 Setting and Modifying User Preferences 4 Atthe confirmation message click Yes to remove the application entry or click Cancel to keep the entry Properties For any of the four alarm types Pager Fax Email Application you may view a particular entry s settings by selecting an entry in the lower window of Alarm Setup and clicking Properties Communication Settings 2 x Alert Preferences Alarm Setup Communication Event Editor r Stop Bits
15. Color CtlO Chn Tgt0 T gt2 T gt4 Reads 66 100 88 CHO Chn Tati T gt5 T at amp Reads 67 100 84 Figure 5 25 Statistics View Bar Graph Display The Bar Graph page displays data each of the analysis strings specified in the display window as a separate bar To reset the maximum value if values consistency go off the scale Click Reset Max The gray portion of the bars displayed in the upper window gives an indication of a maximum value that was hit relative to the current data in the colored bars In the example in Figure 5 25 both data bars are currently performing under their previous maximum values To exit Click Close to exit from Statistics View OR Click another Statistics View tab 5 28 GAM Client v2 15 User s Manual Monitoring Performance Analysis Note Performance Analysis is available only for Mylex PCI Disk Array Controllers Open the Performance Analysis as shown in Figure 5 26 Sign On Define Server Groups Select Current Server Group Ctri G Select Current Controller Ctrl C Baid Assist Initialize Logical Drives Display Controller Information Controller Options Intelligent BBU Scan Devices Advanced Functions Flash White Settings Figure 5 26 Select Performance Analysis Settings When you open Performance Analysis the Settings page is displayed Here you will define the controllers c
16. Drive Monitoring Error Table Bad Block Table Request Sense Data Device Address ctl 2 chn 1 tgt 3 lun 0 ctl 2 chn 1 tgt 1 lun 0 ctl 2 chn 1 tgt 0 lun 0 ctl 2 chn 0 tgt 6 lun 0 otl 2 chn 0 tgt 5 lun 0 ctl 2 chn 0 tgt 0 lun 0 ctl 2 chn 1 tgt 3 lun 0 otl 2 chn 1 tgt 1 lun 0 ctl 2 chn 1 tgt 0 lun 0 ctl 2 chn 0 tgt 6 lun 0 ctl 2 chn 0 tgt 5 lun 0 ctl 2 chn 0 tgt Q lun 0 Retest ReadFile Unit Attention Unit Attention Unit Attention Unit Attention Unit Attention Unit Attention Unit Attention Unit Attention Unit Attention Unit Attention Unit Attention Unit Attention Sense Data L2 1x Tin 70 00 06 00 00 00 00 0A 00 00 00 00 23 00 00 00 70 00 06 00 00 00 00 0A 00 00 00 00 23 00 00 00 70 00 06 00 00 00 00 04 00 00 00 00 23 00 00 00 700006 00 00 00 00 18 FF FF FF FF 2302 00 00 7000 06 00 00 00 00 18 FF FF FF FF 2302 00 00 700006 00000000 18 FF FF FF FF 2302 00 00 70 00 06 00 00 00 00 0A 00 00 00 00 23 00 00 00 70 00 06 00 00 00 00 0A 00 00 00 00 23 00 00 00 70 00 06 00 00 00 00 QA 00 00 00 00 23 00 00 00 700006 00 00 00 00 18 FF FF FF FF 2302 00 00 700006 00 00 00 00 18 FF FF FF FF 2302 00 00 70 00 06 00 00 00 00 18 FF FF FF FF 2302 00 00 Figure 5 15 Request Sense Data Fri Fri Fri Fri Fri Fri Thi Thi Thi Thi Thi Thy This information may be useful for troubleshooting or later analysis 1 Click Save File to record the request sense data for la
17. External RAID Controllers 5 10 Physical Device and Logical Drive Monitoring 5 12 Displaying Device Information 5 12 Viewing the Bad Block Table and Request Sense Data 5 14 Displaying Logical Drive Information 5 17 Performance Monitoring e 5 18 Statistics View 22 aio nien Duce ee eR p Het 5 19 Settings 5 19 Eine Graph inire tere tein ei at 5 25 Pie Graphiadubs ene en nemen eei 5 27 Bar Graph i3 dated re eec be ds 5 28 Performance Analysis 5 29 Iu 5 29 HIStOLy tients sien i ee n eet vie oe 5 35 Process Status Monitoring essen 5 36 Initialization Status 5 36 Rebuild Status 3 1 eden tenui mrs 5 38 Consistency Check Status sssssssee 5 39 Expand Capacity Status 5 40 Chapter 6 Maintenance Processes IntroductlOLi sete ote ee 6 1 Running a Logical Drive Consistency Check 6 1 Running a Device Rebuild e 6 3 Using the Global Array Manager Flash Utility 6 4 Manual No 771961 vii Appendix A Error Codes OVGIVIGW sites ute Se ds ee A A
18. File bist CO 2 1 Installation eo etin et eet teretes ira eese 2 2 Chapter 3 Startup amp Navigation Starting Global Array Manager 3 1 Server Component sonreir iiniu an n T ei 3 1 Client Component re aae tiaia 3 1 Navigating Global Array Manager Client 3 2 Button Controls REEERE E E 3 2 Components of the Opening Screen 3 3 Components of the Global Array Manager Window 3 3 Components of the Global Status View Window 3 4 Components of the Log Information Viewer 3 4 Menubar and Menus sse 3 6 File Menl Rae eet Seles 3 6 View Men ato ed in EC pin te te el 3 7 Administration Menu esssssssseeseeeeeneennn 3 9 Window Menu lect 3 11 Help Menu ce eee tet 3 12 Toolbar and Toolbar ICONS 3 12 Exiting Global Array Manager 3 13 Exiting GAM Client intet erect 3 13 Exiting GAM Server esses 3 14 Manual No 771961 V For More Information cccccccccccecceccssessseeseeceeceeeaeeeesseseeeeeeeeeeees 3 14 Chapter 4 Configuration IntrOdUCHION ic ER 4 1 Signing On to a Server se
19. Level s Email m Pager Mo Mi rs ad gti gg gt m Fax Am gdm m Launch Application of Alarm Sound 3 E HL m m Figure 4 9 Settings Dialog Box Alert Preferences In the Settings dialog box under the Alert Preferences tab Figure 4 9 you have the option to do any of the following Event Log Append events to your current log file or Replace the log file overwrite it Rename the log file Enable or disable the event logging function Enable Global Alerts for Severity Level s Foreach type of alarm Email Pager Fax Launch Application and Alarm Sound check the box es corresponding to the event severity level s for which you would like to enable this type of alarm globally For example in Figure 4 9 all Level 0 and Level 1 messages events will result in an alarm sound locally and email page Level 0 only and fax to those individuals identified in Alarm Setup Events are numbered from for most severe to 4 for least severe and 4 8 GAM Client v2 15 User s Manual Configuration can be edited by the user Finish by doing one of the following Click OK to accept the global alert settings and exit the Settings dialog box or Click Cancel to leave original settings unchanged or Click another Settings tab to set additional user preferences Alarm Setup Settings x Aler
20. No 771961 5 21 Performance Monitoring Save As L2 x Save in 2 3 Floppy amp e File name setting Save as type Settings Files gsf Cancel Figure 5 19 Save Settings to a File 2 Enter a destination and filename for your settings file 3 Click Save To use previously saved settings 1 Click Open Settings An Open dialog box is displayed Figure 5 20 Open BEI Look in 5 3 Floppy amp E e File name setting gsf Files of type Settings Files gsf zl Cancel Figure 5 20 Open Previously Saved Settings 2 Enter a destination and select the settings file you wish to open 3 Click Open 5 22 GAM Client v2 15 User s Manual Monitoring The data generated by your analysis strings can be captured to a file This file can be opened later for examination or analysis To capture data to a file 1 Click Capture Data A Capture Data dialog box is displayed Figure 5 21 Capture Data x File Name Browse Capture Type Save Butter Start Capture tees Figure 5 21 Capture Data to a File 2 With Start Capture selected type a filename for the data file to be saved or click Browse to find an existing data file and append to it 3 Click OK Data defined by your analysis strings will be generated You can see the data as a line graph pie graph or bar graph Data will be collected until you c
21. RAID Controller Operation Overview Manual Configuration E dit Configuration 192 9 10 55 Controller 0 Figure 4 46 A LUN Mapping Scenario Click Apply when you are ready to accept the entire External RAID Controller configuration you ve specified across all Manual Configuration tabs There will be a confirmation message followed by a Do You Want To Reset message Reset will take a couple of minutes 4 50 GAM Client v2 15 User s Manual Chapter 5 Monitoring Introduction Global Array Manager Client monitoring activities involve the following Monitoring events messages sent by various servers to the client workstation s Monitoring controller activity reviewing controller configuration and other information Reviewing physical device and logical drive information Monitoring the performance of drives and controllers reviewing historical performance data Statistics View and Performance Analysis Viewing Error Table information and Request Sense Data Event Monitoring Global Array Manager Server monitors activity and performance of all devices and controllers attached to the particular server When an identified activity occurs which results in an event whether severe such as a hard disk failure or informational such as assignment of a drive to hot spare status the event is sent to selected workstations running GAM Client GAM Client displays events in the Log Informa
22. User Manual Mylex Part Number 771953 which was shipped along with your Mylex controller Conventions Throughout the manual the following conventions are used to describe user interaction with the product bold The user must enter the bold text exactly as shown a Press the Enter key or Enter Press the key labeled Enter or Delete etc File Run Select the Run option from the pull down menu activated when the File menu pad is selected Note Supplementary information that can have an effect on system performance AN Caution Notification that a proscribed action has the potential to adversely affect equipment operation system performance or data integrity WARNING Notification that a proscribed action will definitely result in equipment damage data loss or personal injury Contents Chapter 1 Introduction Su RM ra eea aeaea 1 1 Configuration Functions ssssseeneeneeenen 1 2 Monitoring Functions eene 1 2 Maintenance Functions ssesssssseeem 1 2 What s New In GAM Version 2 15 1 3 Requirements ADI ees Ree Ep detainees 1 4 Client Hardware and Software 1 4 Chapter 2 Installation Installation Overview cccccscceeseceeeceeeeeeeeeeeeeeessaeesseaeeeseneeesssaeessaes 2 1 Global Array Manager Client Component Installation 2 1 Disk
23. Version 2 15 of GAM includes a comprehensive Performance Analysis module which allows you to monitor and debug specific aspects of system performance Remote Firmware Upgrade for PCI Controllers Version 2 15 of GAM includes a Flash Utility to allow an easy method of upgrading the firmware on your Mylex PCI Based Disk Array Controller when enhanced firmware releases become available Other Functional and User Interface Enhancements Numerous enhancements have been made to GAM including the following an improved Alarm Setup display Log Information Viewer refinements improved Statistics displays new controller options and parameters and an enhanced LUN mapping scheme for External RAID Controllers Manual No 771961 1 3 Requirements Requirements Because Global Array Manager is a client server application the GAM Server software component provided in the Mylex Disk Array Controller Software Kit must be installed in one or more file servers in order for the GAM Client software component to operate Hardware and software requirements for installation and operation of the GAM Server component are described for each supported network operating system in the Mylex Disk Array Controller Software Kit Installation Guide and User Manual Requirements for the GAM Client component are as follows Client Hardware and Software PC compatible computer with an 80486 or higher class processor and at least 4 MB of system memory Pentium proc
24. Y axis multiplier and Y offset Note If you want to compare data from different analysis strings their Y multiplier and Y offset settings should be the same To exit Click Close to exit from Statistics View OR Click another Statistics View tab 5 26 GAM Client v2 15 User s Manual Monitoring Pie Graph Click the Pie Graph tab to open the Pie Graph data page Figure 5 24 Statistics 204 32 130 200 x Settings Line Graph Pie Graph Bar Graph Device peration Color Value Z Value CHO Chn Tat Tat2 T at Heads 55 50 4 CHO Chn Tat Tat5 T ate Fieads c5 496 Close Figure 5 24 Statistics View Pie Graph Display The Pie Graph page displays data for the analysis strings specified in the display window in the form of a pie chart Note Because of the nature of a pie chart the Operation selected for your analysis strings should be the same If itis not the data may or may not be useful To update the data in the pie graph to the most current data Click Refresh Display To exit Click Close to exit from Statistics View OR Click another Statistics View tab Manual No 771961 5 27 Performance Monitoring Bar Graph Click the Bar Graph tab to open the Bar Graph data page Figure 5 25 Statistics 204 32 130 200 Settings Line Graph Pie Graph Bar Graph No 0 1 Device Operation
25. chapters in this installation guide AND to the context sensitive online help file available from the Help menu by pressing F1 or by right mouse clicking an item on which you require help 3 14 GAM Client v2 15 User s Manual Chapter 4 Configuration Introduction Global Array Manager Client configuration activities involve the following Setting up server groups and servers Loading a configuration from disk and saving it to the controller Setting or modifying user preferences such as alarms alerts event message editing and communications parameters Setting or modifying controller options to suit your application needs Creating modifying or deleting Mylex RAID Controller configurations Mapping LUNs External RAID operation only Signing On to a Server Security Access Levels The ability to perform certain actions within the Global Array Manager Client depends on your security access level There are three levels of security access Guest no sign on User and Administrator Guest By attaching to a file server through the Global Array Manager Client a user is automatically assigned Guest no sign on status Guest users can monitor Global status and the Log Information Viewer They cannot make changes to any parameters or configurations User A User has ordinary system privileges A User signs on with his or her username and a password that has been assigned by the Administrator of that ser
26. connected to the controller via its drive channels There may be as many as six drive channels depending on the controller model and configuration In duplex or Active Active mode two identical External RAID Controllers are connected to the same hosts via their host ports to the same drives via their drive channels and to each other via a special hardware link for heartbeat sensing This forms a redundant controller system The two controllers work together handling data traffic and mirror their write data in each other s cache memory If one of the controllers fails or otherwise becomes non operational the surviving controller takes over its responsibilities with no loss of data Note This section presents only a brief introduction to External RAID Controller operation For additional details consult the hardware installation guide for the particular controller of interest LUN Mapping Overview External RAID Controller LUN Mapping allows logical drives or system drives to be made available or unavailable on one or more host ports The mapping is performed by assigning Logical Unit Numbers LUNs to logical drives The LUN assignments are per host port and are independent of the assignments on other host ports Logical drives may be assigned only one LUN per host port By not assigning a LUN to a logical drive on a particular host port that logical drive is made inaccessible to that host port Manual No 771961 4 47
27. default equal to the GAM ID number Enter your own event severity level in the Severity list box or keep the default set by Mylex Click the Default button to return all settings for this particular event to their Mylex defaults Alarm for the Event When all Global boxes are checked you are seeing the alarms that will activate when this particular event occurs these are based on the settings in Alert Preferences Check or uncheck specific boxes if you wish to override these defaults and change the alarms for this event Event Message Text Enter new text for this event or keep the default text set by Mylex Default All Click the Default All button to reset all events of all severity levels back to their Mylex defaults Finish by doing one of the following Click OK to accept the event settings and exit the Settings dialog box or Click Cancel to leave original settings unchanged or Click another Settings tab to set additional user preferences 4 18 GAM Client v2 15 User s Manual Configuration Setting and Modifying Controller Options Open Controller Options as shown in Figure 4 21 Administration Controller Options Figure 4 21 Select Controller Options Mylex PCI RAID Controllers Controller Options lt I Figure 4 22 Controller Options Dialog Box For PCI DAC In the Controller Options dialog box Figure 4 22
28. file in a different directory Note Selecting the IP Address in the Data source box indicates that you wish to view data currently being generated by that server Only the currently selected server will be displayed 3 Click OK to open the data file for display or the server currently generating data You view saved data by clicking the History tab and choosing Past in the Graph Data box You view current data by clicking the History tab and choosing Present in the Graph Data box 5 34 GAM Client v2 15 User s Manual Monitoring History Click the History tab to open the History data page Figure 5 32 Statistics 204 32 130 200 Lx Settings Line Graph Pie Graph Bar Graph 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 peration CtlO Chn TgtO Tote Reads CHUB Chn Tat Tatt Reads Y multiplier Y offset Y autoscale Value Yes 1 0 0 63 66 Yes 1 0 0 7 65 mi Pause Graph pions Time Scale Unit b sec Graph Data E Past Present Figure 5 32 Performance Analysis History Display The History page displays data for the analysis strings specified in the display window in the form of lines generated on a grid with time units along the horizontal axis and percentage along the vertical axis To set the Time Scale Unit Enter a number of milliseconds in the text box 2 Click Apply Eac
29. is not highlighted At the bottom of the Device Selection box a field displays the analysis string being constructed The symbol refers to All Next do the following 5 In the Operation drop down list box select an operation to monitor for this analysis string Examples of operations include Reads ReadKB Writes WritesKB Read 96 Write Read Write etc 6 In the Color drop down list box select a color to represent this analysis string graphically 7 In the Line drop down list box select a line style to represent this analysis string in a line graph 8 Your string is built Click New to add this string to the display box 9 Repeat steps 1 through 8 to create additional analysis strings if you so desire OR If you want to add to an already built string select the string in the display box select additional devices under Device Selection and click the Add To button If you change the Operation Color or Line and click Add To the new selection replaces the previous one To delete analysis strings Select a string in the display box and click Delete OR Click Delete All to delete all defined analysis strings To set the Sample Period Type a number of seconds in the Sample Period box A data point will be created for display each Sample Period number of seconds To save all your settings to a file for future use 1 Click Save Settings A Save As dialog box is displayed Figure 5 19 Manual
30. no required actions Critical Serious Error and Warning messages may specify useful required actions 3 Click OK to close the event information window 5 4 GAM Client v2 15 User s Manual Monitoring Controller Monitoring After a client and server connection is made through sign on the GAM Client opens a window for each RAID controller SCSI HBA and their drives operating in that file server These controller windows are the Global Array Manager Client s Controller View Opening the Controller View Open the Controller View by double clicking any server icon in the Global Status View or as shown in Figure 5 4 v Global Status View L roll Statistics View Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Error Table Figure 5 4 Select Controller View Manual No 771961 5 5 Controller Monitoring Controller View 192 192 192 1 Controller 2 gamroot Physical Drives MB Logical Drives MB el0 Channel 2 0 4096 RAID3 1 4092 RAIDS Total Logical Capacity 8188 MB Total Physical Capacity 10240 MB Figure 5 5 Controller View Window RAID Controller The Controller View window Figure 5 5 displays the following information about the controller currently selected in the controller selection box Global Array Manager window The number of channels on this controller each channel depicted as a
31. of the logical drive Out of the total amount of capacity configured on the controller the amount of capacity held by this logical drive shown in a bar graph Manual No 771961 5 17 Performance Monitoring If write back cache is disabled click the Enable Write Cache button to enable the cache If write back cache is enabled click the Disable Write Cache button to disable the cache and use write through caching If the Consistency Check button is enabled you may manually run a consistency check on this logical drive as discussed in the next chapter Click Show Bad Data Blocks to display a window of all bad data blocks found on this logical drive Click the Close button to close the dialog box Performance Monitoring Performance can be monitored in two ways Statistics View This measures RAID controller performance using operations such as Reads Writes Reads Writes Cache Hits etc A flexible settings page lets you choose which controllers targets and operations to monitor Past and present data can be viewed as a line graph pie graph or bar graph Settings can be saved and opened and statistics data can be captured saved and displayed Performance Analysis This focuses on disk level performance as often used in a TPC C environment This system side tool uses items such as Command Completion Time Retries etc to monitor and analyze performance A flexible settings page lets you choose which con
32. procedure requires a user with administrator access rights Global Array Manager Client Component Installation Disk File List Global Array Manager Client software is shipped on two diskettes The contents of these diskettes are Diskette 1 LILNSISZT EX GAMCLNT 1 _ISDEL EXE SETUP EXE SETUP DEL SETUP INI _SETUP LIB SETUP INS DISK1 ID SETUP PKG Diskette 2 DISK2 ID GAMCLNT 2 Manual No 771961 2 1 Global Array Manager Client Component Installation Installation Install the Global Array Manager Client from within your version of Windows NT 3 51 Windows NT 4 x or Windows 95 A Caution Files for the client are decompressed by the installation procedure Copying the files directly to a hard disk will NOT result in a successful installation If you already have a previous version of GAM Client installed follow the instructions in this chapter as usual but keep the following points in mind Ifyou wish to maintain any special settings registered in the USER INI and GAMOCL INI files within the GAM Client folder save a copy of USER INI and or GAM2CL INI then install the new GAM Client and overwrite the new USER INI and or GAM2CL INI with your existing saved files f you wish to retain your previous version of GAM Client install the new GAM Client to a different folder To upgrade GAM Client from Version 2 0 to Version 2 15 install the new GAM Cli
33. the configuration go to Welcome page and select y TORETE x Manual Configuration ogical Drives Optimization Configuration Summary is Physical dives 4 Logical drives 1 Physical capacity 12408MB Logicalcapaciy 8272 Hot spares a Y RAID level RAIDS Stripe size 8KB Cache line size 8KB Enable write cache No Initialize No lt Back Apply Cancel Figure 4 39 Assisted Configuration gt New Configuration gt Finish When you get to the Finish screen Figure 4 39 do the following 1 Examine the Configuration Summary for details about the configuration that RAID Assist will set up If you want to start over click the Welcome tab or Cancel button OR If you want to change your answers to any of the questions you were asked click the appropriate tab to return to that screen OR If you want to view the configuration before it is applied to the controller click the Details button You will be taken to an equivalent of the Disk Arrays page as shown in Manual Configuration except that you can only view and close the details window If you accept the configuration as presented click the Apply button at the Finish page to apply the new configuration to the controller A warning confirmation box appears as shown in Figure 4 40 4 40 GAM Client v2 15 User s Manual Configuration WARNING x This process is data destructive If you want to proceed confirm by typing
34. the following 2 Select one or more controllers to include in the analysis string Click All for all controllers For individual controllers make sure All is not highlighted 3 Select one or more channels to include in the analysis string Click All for all channels For individual channels make sure All is not 5 30 GAM Client v2 15 User s Manual Monitoring highlighted If you chose Physical under Device type select one or more targets to include in the analysis string Click All for all targets For individual targets make sure All is not highlighted If you chose Logical under Device type select one or more logical drives to include in the analysis string Click All for all logical drives For individual logical drives make sure All is not highlighted At the bottom of the Device Selection box a field displays the analysis string being constructed The symbol refers to All Next do the following 5 10 In the Item drop down list box select an item to monitor for this analysis string Examples of items include Command Finished Minimum Maximum Average I O Size Minimum Maximum Average Response Time Errors etc In the Operation drop down list box select an operation to monitor for this analysis string Operations include Read Write Read Write Read and Write In the Color drop down list box select a color to represent this analysis string graphically In the Line drop down list box sel
35. the word YES Figure 4 40 WARNING Before Applying the Configuration 4 Type YES and click OK if you are sure you want to apply the new configuration and overwrite the old If you re not sure click Cancel Note In Assisted Configuration Add Logical Drive and Expand Array function very similarly to the New Configuration option In each case RAID Assist leads you step by step through the relevant questions for the task Manual Configuration Manual Configuration provides four options Edit Configuration Displays the current configuration disk arrays and logical drives and allows you to make any changes that you require New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on this controller and unconfigured drive space must remain Expand Array Restripes data in your array across additional unconfigured drives to expand the capacity of the array Manual No 771961 4 41 Running RAID Assist Open New Configuration for example as shown in Figure 4 41 Manual Configuration 2f x Data Overwrite Method Change existing configuration Data on modified logical drives will Edit Configuration be lost Create a new configuration If there is an existing configuration it New Confi
36. to a running system and labeled as a hot spare 3 The controller creates the hot spare During the automatic rebuild process system activity continues as normal System performance may degrade slightly during the rebuild process To use the automatic rebuild feature you should always maintain a hot spare drive in your system When a drive fails the hot spare will automatically replace the failed drive and the data will be rebuilt The system administrator can disconnect and remove the bad drive and replace it with a new drive The administrator can then make this new drive a hot spare Stripe Order The order in which disk drives appear within a drive group This order must be maintained to access the data correctly and is critical to the controller s ability to Rebuild failed drives Stripe Size The stripe size is defined as the size in kilobytes 1024 bytes of a single I O operation stripe of data data residing in actual physical disk sectors which are logically ordered first to last is divided over all drive group disks Manual No 771961 G 11 Glossary Stripe Width The number of striped drives within a drive group Striping Refers to the storing of a sequential block of incoming data across multiple drives in a group For example if there are 3 drives in a group the data will be separated into blocks and block of the data will be stored on drive 1 block 2 on drive 2 block 3 on drive 3 block 4
37. v Enabled Number 555 4321 Software Header Test WinFax Figure 4 14 Fax Setup Dialog Box 3 In the Fax box Enable or disable this Fax entry using the Enabled check box Enter the fax phone number of someone who will receive a fax Enter a fax header if desired Select the installed fax software from the Fax Software list default is WinFax and this may not be selectable 4 To test the fax using the settings you ve input click Test 5 When you are satisfied with the Fax you ve set up click OK Your new Fax entry appears in the lower window of the Alarm Setup dialog box Refer back to Figure 4 13 for an example Remove a Fax 1 Select the Fax alarm type in the upper window of Alarm Setup 2 Select the Fax entry to remove in the lower window of Alarm Setup 3 Click Remove 4 Atthe confirmation message click Yes to remove the Fax entry or click Cancel to keep the entry 4 12 GAM Client v2 15 User s Manual Configuration Add Email 1 Select the Email alarm type in the upper window of the Alarm Setup dialog box Figure 4 15 RIGBETIES Figure 4 15 Email Alarm Setup 2 Click Add The Email setup box is displayed as shown in Figure 4 16 address myserver com GAM Alert Figure 4 16 Email Setup Dialog Box 3 In the Email box Enable or disable this Email entry using the Enabled check box Enter the ema
38. you have the option to do any of the following Manual No 771961 4 19 Setting and Modifying Controller Options Enable by checking or disable by unchecking any of the following Global Parameters Automatic Rebuild Management Works in conjunction with AEMI or SAFTE disk array enclosures to detect removal of a failed drive and perform an automatic rebuild after installation of a replacement drive Active Negation Recommended for cleaner SCSI signal transitions Read Ahead Reads data to the next stripe boundary based on stripe size and retains in cache any data beyond the size of the actual read request Disconnect On First Command Allows target to disconnect from initiator Change the default Rebuild Rate to less than 50 A rate of 50 devotes the maximum allowable resources to a drive rebuild or array expansion allowing the Rebuild or Expand to proceed at its fastest Lowering the number devotes more resources to I Os and consequently slows the Rebuild or Expand Change any of the following Startup Parameters Spin up Change if you do not want automatic drive spin up Devices Between Spins Number of devices to spin up at one time A low number lessens the likelihood of a power drain Initial Delay Number of seconds between physical device start ups Sequential Delay Number of seconds between consecutive device spin up cycles Change any of the following SCSI Parameters note that Transfer Speed is r
39. 1 RAID 3 RAID 5 RAID 0 1 Mylex RAID 6 and stand alone drive Mylex RAID 7 or JBOD Only RAID levels compatible with the current configuration will be available in the list 2 Enter the amount of available logical or physical capacity for this logical drive If your total configuration will have only one logical drive which uses all available capacity the default sizes should not be changed If you intend to create additional logical drives now or later enter a smaller number to reserve the desired amount of capacity 3 Check the Write Cache box if you want this logical drive to use Write Back caching This improves performance but puts data at risk You should have a battery backup unit or uninterruptable power supply if selecting this feature 4 44 GAM Client v2 15 User s Manual Configuration 4 Check the Init Drive box if you want this logical drive to be fully initialized at the conclusion of the configuration It is recommended that you check this option if available 5 If this is your first logical drive select a stripe size This setting will apply to all logical drives on this controller 6 Ifthis is your first logical drive select a cache line size Available settings will depend on the selected stripe size Not available for External RAID Controllers 7 Click the Add Drive button to register your new logical drive 8 If you are configuring a Mylex PCI RAID Controller click Apply to save the configu
40. 12 13 14 1 ctl 4 logdru 1 Consistency check is finished Fri Sep 26 12 13 FriSep2612 12 461 ctl 4logdrv 1 A Consistency check is started Fri Sep 26 12 12 Fri Sep 26 11 58 211 ct 4logdrw 3 A new logical drive has been cre Fri Sep 26 11 58 Fri Sep 26 11 58 211 ctl 4logdrv 2 new logical drive has been cre Fri Sep 26 11 58 Fri Sep 26 11 58 211 ctl 4 logdrv 1 A new logical drive has been cre Fri Sep 26 1158 Figure 5 2 Log Information Viewer The Log Information Viewer Figure 5 2 displays the following information about events 5 2 GAM Client v2 15 User s Manual Monitoring Event ID Displays an icon showing whether the event is informational cautionary a warning etc plus the identification number assigned to this event Severity The severity level of this event Source The IP address or name of the file server that is the sender source of this event Source Time Day of the week month day of the month time of day and year at the source file server s location when this event occurred Device Address Relevant channel target activity and other data pertaining to why this event posted Description Text of the message describing what occurred Sequence Seq Number representing where this event fell in a sequence of possibly related events Local Time Day of the week month day of the month time of day and year at the local client workstation s location when this event arrived Op
41. 390 392 394 396 397 516 A logical drive has been placed online An automatic rebuild has started on logical drive A manual rebuild has started on logical drive Rebuild on logical drive is over Rebuild on logical drive is cancelled Logical drive initialization started Logical drive initialization done Logical drive initialization cancelled A new logical drive has been created A logical drive has been deleted Expand Capacity Started Expand Capacity Completed Bad Blocks found System drive size changed System drive type changed Fan has been restored No Message Power supply has been restored No Message Normal temperature has been restored No Message StorageWorks enclosure reported normal state GAM Server Software Started Successfully Controller is found Battery Backup Unit Present Battery Power OK Controller powered on Controller is online Server alive GAM Client v2 15 User s Manual Glossary Active Active Mode See Dual Active Duplex Mode BBU See Battery Backup Unit Bad Block Table or Bad Data Table There are two bad block tables that the controller automatically maintains The Rebuild Bad Block Table stores information on bad blocks encountered during a rebuild or consistency check process The Write Back Bad Block Table stores information on all irrecoverable write back errors that occur GAM provides an Error Table in which you can see Bad Blo
42. 4 21 Advanced Controller Options All External RAID Controllers eeeeeeeeeeeenne 4 22 Expert Controller Options All External RAID Controllers eeeeeee 4 24 Fibre Controller Options External Fibre Controllers Only 4 26 SCSI Host Bus Adapters 2 4 28 Running RAID ASSIST reo Pet bete ares 4 29 Entering RAID Assist 4 29 Automatic Configuration sseeeeeenennnnns 4 30 Assisted Configuration sssseeeeneneenes 4 34 vi GAM Client v2 15 User s Manual Manual Configuration 4 41 External RAID Controller Operation Overview 4 47 LUN Mapping Overview 4 47 LUN Mapping in Global Array Manager 4 48 Chapter 5 Monitoring IntroductlOn heo aee eot 5 1 Event Monitoring eire ener ren RED 5 1 Opening the Log Information Viewer 5 2 Opening an Event Information Window 5 8 Controller Monitoring esee 5 5 Opening the Controller View seeee 5 5 Displaying Controller Information 5 9 Mylex PCI RAID Controllers eee 5 9 Mylex
43. 61 6 3 Using the Global Array Manager Flash Utility Rebuild runs and the Rebuild Status box appears see the previous chapter Close the box and continue or leave the box open until Rebuild has completed When rebuild has completed the selected physical device AND the logical drive s of which it is a part are returned to operational status If you cancel rebuild the device returns to its offline dead status red X and the logical drives that occupy this physical device all go to critical status yellow exclamation point You must complete a future rebuild to return the physical device and logical drive s to operational status Using the Global Array Manager Flash Utility The Flash Utility is used to upgrade firmware BIOS and BIOS Configuration Utility software by flashing the new code stored in an identified IMG file to the on board BIOS of the Mylex PCI Disk Array Controller As maintenance releases of this code become available this utility allows you to keep your controller current using GAM Open the Flash Utility as shown in Figure 6 3 Sign On Define Server Groups Select Current Server Group Ctrl G Select Current Controller Ctrl C Raid Assist Initialize Logical Drives Display Controller Information Controller Options Intelligent BBU Scan Devices Advanced Functions Performance Analysis Flash Utility Settings Figure 6 3 Select Flash
44. A 1 Gritical Level 0 is actin ete eth e a tale A 1 Serious ih uds pee A 1 Errors Level 2 3 3 c eibi oth pipere A 2 Warnings Level 3 ener eere rns A 2 Information Level A 3 Glossary viii GAM Client v2 15 User s Manual Chapter 1 Introduction Global Array Manager olx Eile View Administration Window Help Soh no Global Status View 204 32 130 202 192 9 10 55 nr HBAs 1 Log Information Viewer 8f EventID Severity Source Source Time DeviceAddress Description Sea Local Time For Help press F1 2 Figure 1 1 Global Array Manager Client Overview Global Array Manager Client software v2 15 GAM Client 2 15 is used in order to Monitor manage maintain and configure Mylex Disk Array Controllers and the physical and logical drives that are connected to these controllers Monitor and manage SCSI Host Bus Adapters and the physical devices that are connected to these adapters Manual No 771961 1 1 Overview Global Array Manager has two components the Global Array Manager Server component which is part of the Mylex Disk Array Controller Software Kit and the Global Array Manager Client component described in some detail in this guide Each component handles specific tasks based upon the selected function Configuration Functions Configuration functions are easily performed using RAID Assist an in
45. Add To Delete Delete All Sample Period Display Data Capture Data Save Settings Open Settings Close Figure 5 18 Statistics View Settings dii You build a string which defines a line of data on a line graph a section of a pie graph or a bar on a bar graph Each string consists of one or more controllers channels and physical devices or logical drives to include in the analysis an operation to be analyzed and a color and line style for line graphs to represent this string graphically To build an analysis string 1 In Device type select either physical devices or logical drives for the analysis string you re building In Device Selection do the following 2 Select one or more controllers to include in the analysis string Click All for all controllers For individual controllers make sure All is not highlighted 3 Select one or more channels to include in the analysis string Click All for all channels For individual channels make sure All is not highlighted 5 20 GAM Client v2 15 User s Manual Monitoring 4 Ifyou chose Physical under Device type select one or more targets to include in the analysis string Click All for all targets For individual targets make sure All is not highlighted If you chose Logical under Device type select one or more logical drives to include in the analysis string Click All for all logical drives For individual logical drives make sure All
46. Client v2 15 User s Manual Configuration 3 Click OK The Define Server Groups dialog box will reappear with the newly defined server group added Adding a Server to the Servers List With the Define Server Groups dialog box open Figure 4 4 do the following 1 Click the Add button under the Servers section of the dialog box 2 Inthe Adding Item dialog box enter the IP address of the server that you are adding If you re running GAM Client under Windows NT you may instead enter the name of the server 3 Click OK The Define Server Groups dialog box will reappear with the newly defined server added 4 To add more servers to the group repeat steps 1 through 3 5 Click OK in the Define Server Groups dialog box when you are finished After adding servers Global Array Manager returns to the Global Status window Note Select All Servers to see all servers in the Global Status view Loading a Configuration from Disk Load a previously saved configuration from disk as shown in Figure 4 5 Open Configuration Ctrl 0 Save Configuration Ctrl S Clear Configuration Exit Ctrl Q Figure 4 5 Select Open Configuration Manual No 771961 4 5 Loading a Configuration from Disk 1 Inthe Open Configuration dialog box Figure 4 6 select the configuration file you wish to open to save to the controller Open Configuration E iEmyconfig act
47. Disk Capacity Data Availability redundancy or fault tolerance Disk Performance RAID Levels Mylex supports four RAID Advisory Board approved RAID levels RAID 0 RAID 1 RAID 3 RAID 5 and several special RAID levels RAID 0 1 G 8 GAM Client v2 15 User s Manual Glossary RAID 00 RAID 10 RAID 30 RAID 50 and JBOD Level 0 Block striping across multiple drives is provided yielding higher performance than is possible with individual drives This level does not provide any redundancy Level 1 Drives are paired and mirrored All data is 100 duplicated on a drive of equivalent size Level 3 Data is striped across several physical drives Maintains parity information which can be used for data recovery Level 5 Data is striped across several physical drives For data redundancy drives are encoded with rotated XOR redundancy Level 0 1 Combines RAID 0 striping and RAID 1 mirroring This level provides redundancy through mirroring Mylex RAID 6 Levels 00 10 30 and 50 Multi layer RAID levels which span RAID levels 0 1 3 and 5 by striping data across drive groups RAID Drives JBOD Sometimes referred to as Just a Bunch of Drives Each drive is operated independently like a normal disk drive or drives may be spanned and seen as a single drive This level does not provide data redundancy Mylex RAID 7 Note The host operating system drivers and software utilities remain unc
48. External RAID Controller Operation Overview LUN Mapping in Global Array Manager Global Array Manager Version 2 15 implements LUN Mapping by allowing the user to map Logical Unit Numbers LUNs to specific controller port combinations After configuring the desired number of logical drives on the Mylex External RAID Controller click the LUN Mapping tab in Manual Configuration Figure 4 45 The Controller Port columns are shown or not shown depending on the current controller configuration of host ports and duplex controllers By default these logical drives are made available to all existing host ports in the configuration LUNs are assigned automatically in sequential order for each port Manual Configuration E dit Configuration 192 9 10 55 Controller 0 1 Welcome 2 Disk Arrays 3 Logical Drives 4 Lun Mapping Logical RAID Logical Controller 0 Controller 0 Controller 1 Controller 1 Drive Level Size Port 0 Port 1 Port 0 Port 1 Clear All Set Sequential Restore Figure 4 45 Select LUN Mapping WARNING If Global Array Manager Server is running under Windows NT be sure to assign each logical drive to a specific individual port not to all ports When logical drives are available to ALL host ports Windows NT may assign multiple volumes e g C and E to the same physical media Data corruption and or data loss can result 3 Cancel 4 48 GAM Client v2 15 User s Manual Configuration
49. GAM Client software Start gt Programs gt Global Array Manager If at least one server group and file server are defined the opening screen appears If not the Define Server Groups dialog box appears see Setting Up Server Groups and Servers on page 4 4 Note After starting the Global Array Manager Client minimize the utility and let it run in the background at all times unless you re doing a configuration or setting up a maintenance process If Global Array Manager detects a logical drive in a critical state or a physical drive failing it prompts you with windows describing the location and nature of the problem Maximize the utility to display more detailed information In order for event notification to occur the Global Array Manager Server and Client must be running at all times Navigating Global Array Manager Client Button Controls Dialog boxes throughout the Global Array Manager Client have a series of control buttons Some examples of these include Yes OK Click this button to apply the settings made in the dialog box Cancel Click this button to cancel the settings made in the dialog box Click this button to confirm the action identified in the dialog box Click this button to cancel the action identified in the dialog box Click this button to close the active dialog box Click this button to apply your configuration changes 3 2 GAM Client v2 15 User s Manual Startup amp
50. NINVLEX Global Array Manager Client Software v2 15 Installation Guide and User Manual Part Number 771961 05 Copyright 1998 Mylex Corporation All Rights Reserved All contents of this manual are copyrighted by Mylex Corporation The information contained herein is the exclusive property of Mylex Corporation and shall not be copied transferred photocopied translated on paper film electronic media or computer readable form or otherwise reproduced in any way without the express written permission of Mylex Corporation Greetings Thank you for purchasing the Mylex Global Array Manager Client Software v2 15 for Windows 95 and Windows NT Requests for technical information about this and other Mylex Corporation products should be made to your Mylex authorized reseller or Mylex marketing representative Please Notice Mylex is a registered trademark of Mylex Corporation Global Array Manager RAID Assist and DAC960 are trademarks of Mylex Corporation Novell and NetWare are registered trademarks of Novell Inc SCO SCO UNIX and UnixWare are registered trademarks of The Santa Cruz Operation Ltd Windows Windows NT and Windows 95 are registered trademarks of Microsoft Corp OS 2 OS 2 Warp and IBM are registered trademarks of International Business Machines Inc Other names that are trademarks may be used herein for the purpose of identifying the products or services of their respective owners Unless otherwise n
51. Navigation Components of the Opening Screen Upon startup with defined servers Global Array Manager Client displays the opening screen consisting of the Global Array Manager window the Global Status View window and the Log Information Viewer Figure 3 1 Global Array Manager ile Es File View Administration Window Help 1 al i A Servers Dacssosx y v Global Status View 150 204 32 130 202 192 9 10 55 dacs 3 B 5 Log Information Viewer EventID_ Severity Source Source Time Device Address_ Description Seq Local Time For Help press F1 Figure 3 1 Opening Screen Components of the Global Array Manager Window The major components of the Global Array Manager window Figure 3 1 are described below 1 Item 1 is the GAM Client menubar There are five menus with several selections each The contents of the menus and the functionality of several of the most important selections will be described throughout this guide Item 2 is the GAM Client toolbar There are eight toolbar icons representing eight of the most useful functions available in GAM Client The identity of each toolbar icon and an explanation of the purpose of each will be described in later sections of this chapter 3 Item 3 is the GAM Client server selection box When selected the Manual No 771961 3 3 Navigating Global Array Manager Client box displays the names of each serve
52. Users with Administrative access are free to alter the default settings For each logical drive select a LUN in the drop down list box which corresponds to the mapping desired Note the following The Clear All button sets all LUN assignments to None You can then select individual assignments more closely while allowing several assignments of inaccessible WARNING DO NOT leave all assignments at None This indicates that no logical drives are accessible to any port on any controller The Set Sequential button sets all LUN assignments sequentially on all available ports This reproduces the default shown back in Figure 4 45 The Restore button resets the LUN Mapping assignments that are currently saved in the configuration the assignments in effect when the LUN Mapping page was entered This is handy if LUN assignments become confusing and you wish to cancel your changes The Apply button applies the entire External RAID Controller configuration including what was set up under the Disk Arrays Logical Drives and LUN Mapping tabs The Cancel button cancels the entire configuration including what was set up under the Disk Arrays Logical Drives and LUN Mapping tabs If you want to cancel only your LUN Mapping changes use the Restore button While it is recommended that there be a LUN 0 on each port the order and value of LUNs on each port is flexible Figure 4 46 shows an example Manual No 771961 4 49 External
53. Utility The Flash Utility dialog box appears as shown in Figure 6 4 6 4 GAM Client v2 15 User s Manual Maintenance Processes Flash Utility 02 30 1998 02 31 1998 16384 04 01 1998 04 04 1998 229376 1 7 1998 Figure 6 4 Flash Utility Dialog Box Under Current RAM Information you see displayed the key information regarding the code that is currently stored in the BIOS of your selected controller This information is helpful for diagnostic and troubleshooting purposes as well as to determine whether you need to upgrade some aspect of the firmware BIOS etc To do a flash upgrade 1 Type the name of the appropriate image file IMG in the Flash file selection box or click the Browse button to locate the file If you select Browse the Open Image file dialog box is displayed as shown in Figure 6 5 Manual No 771961 6 5 Using the Global Array Manager Flash Utility Open image file Saree E cu ima Controller firmware image files img Figure 6 5 Open Image File Dialog Box Select the image filename using the file selection dialog box Click Open Once you ve specified an appropriate image file the Start Flash button becomes available in the Flash Utility dialog box and the Flash file selection area displays details regarding the IMG file Figure 6 6 Flash Utility prom ese BootBlock 4 04 28 02 30 1998 02 31 1998 16384 Firmware
54. WARNING Before Applying the Configuration 4 Type YES and click OK if you are sure you want to apply the new configuration and overwrite the old If you re not sure click Cancel Note In Automatic Configuration Add Logical Drive and Expand Array function very similarly to the New Configuration option In each case RAID Assist prepares an optimal configuration without user input based on characteristics of the available devices Manual No 771961 4 33 Running RAID Assist Assisted Configuration Assisted Configuration provides three options New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on this controller and unconfigured drive space must remain Expand Array Restripes data in your array across additional unconfigured drives to expand the capacity of the array Open New Configuration for example as shown in Figure 4 33 Assisted Configuration Figure 4 33 Select New Configuration 4 34 GAM Client v2 15 User s Manual Configuration Assisted Configuration walks you step by step through a new configuration Figure 4 34 Each tab in the Assisted Configuration dialog box collects information about an important aspect of the configuration you wish to set up During this proces
55. a Seq Device Address Bad Block Number Time Monitoring This table contains information about bad unusable areas on currently ctl 4 logdry 0 ctl 4 logdrv 0 ctl 4 logdry 0 ctl 4 logdry 0 ctl 4 logdry 0 ctl 4 logdry 0 ctl 4 logdry 0 ctl 4 logdrv 0 ctl 4 logdrv 0 ctl 4 logdrv 0 otl 4 logdrv 0 ctl 4 logdrv 0 ctl 4 logdrv 0 ctl 4 logdrv 0 ctl 4 logdrv 0 otl 4 logdrv 0 Read File 00055200 00055300 00055800 00055700 00055600 00055500 00055400 00055300 00055000 00055100 00055380 00055280 00055100 00055080 00055980 00055880 Save File Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Thu Sep 25 19 00 23 1997 Figure 5 14 Bad Block Table configured logical drives and the date and time when the errors were discovered A large number of bad blocks may signal a corrupted or failing disk Click Save File to record the bad block information for later inspection If you click the Request Sense Data tab the following type of information appears Figure 5 15 Manual No 771961 Physical Device and Logical
56. a Numeric or Alphanumeric pager 4 Ifyou need to enter a Message Prefix Suffix or Delay interval click Advanced Enter the desired information and click OK to return to the Pager setup box 5 To test the pager using the settings you ve input click Test 6 When you are satisfied with the Pager you ve set up click OK Your new Pager entry appears in the lower window of the Alarm Setup dialog box Refer back to Figure 4 10 for an example 4 10 GAM Client v2 15 User s Manual Configuration Remove a Pager 1 Select the Pager alarm type in the upper window of Alarm Setup 2 Select the Pager entry to remove in the lower window of Alarm Setup 3 Click Remove A confirmation message is displayed as shown in Figure 4 12 Global Array Manager 555 1234 will be deleted Do you want to proceed Figure 4 12 Remove Pager Entry Message 4 Click Yes to remove the Pager entry or click Cancel to keep the entry Add a Fax 1 Select the Fax alarm type in the upper window of the Alarm Setup dialog box Figure 4 13 Settings BE Alert Preferences Alarm Setup Communication Event Editor B Pager o Fax fj 555 4321 E Email II Launch Application Software WinFax Add Remove Properties Figure 4 13 Fax Alarm Setup Manual No 771961 4 11 Setting and Modifying User Preferences 2 Click Add The Fax setup box is displayed as shown in Figure 4 14 Fax Lx
57. aced and the failed drive s data must be rebuilt on a new drive to restore the system to fault tolerance once again The device rebuild function performs this task A failed drive s data can be rebuilt to The original drive if this drive happens to be still functional A hot spare standby drive present for just this purpose or A drive inserted in place of the failed drive If you need to carry out a device rebuild perform the following procedure 1 Reinsert the removed drive that caused the failure if it is still a good drive or replace the failed drive with a new drive of equal or greater capacity 2 Double click the relevant physical device in the Controller View window The Disk Device Information dialog box will open and the Rebuild button should be available Figure 6 2 Disk Device Information Channel 0 T arget 2 Lun 0 p Device Inquiry Data Vendor SEAGATE Product 5 32550 Revision 0021 Bus Width 16 Bits Vide Sync Yes Soft Reset No ANSI Version SCSI 2 Linked Yes CmdQue Yes r Device State Nego Transfer Speed 10 MB Sec Capacity 2047 MB Status On Nego Bus Width 1 16 Sector Size 512 Bytes Device Errors Soft Errors 0 Parity Errors 0 Hard Errors 0 Misc Errors 0 Make Online Figure 6 2 Rebuild Button Available for This Disk Device 3 Click the Rebuild button in the Disk Device Information dialog box Manual No 7719
58. arget 0 Figure 5 7 LUNs on Target 0 a Multiple LUN Device Four LUNs are available in the example above LUN 0 through LUN 3 Note In order to configure devices on an External RAID Controller you must select the RAID controller directly in the controller selection box then run RAID Assist SCSI HBA and Target ID views only allow you to see what s connected to the External RAID Controller For additional details about the devices LUNs you must also access the RAID controller directly 5 8 GAM Client v2 15 User s Manual Monitoring Displaying Controller Information Open Display Controller Information as shown in Figure 5 8 Administration Display Controller Information Figure 5 8 Select Display Controller Information Mylex PCI RAID Controllers Figure 5 9 shows the Controller Information window for a PCI RAID Controller 204 32 130 200 Controller 0 gamroot Figure 5 9 Controller Information PCI Controllers The following information is displayed The controller model of this controller 0 C 0 1 C 1 2 C 2 etc Whether an Intelligent Battery Backup Unit is installed N A for not Manual No 771961 5 9 Controller Monitoring supported on the current controller The firmware and BIOS versions residing on the controller The cache size and FlashROM size The bus width for data transfers and bus speed MB sec The bus type PCT and number of channels on the c
59. ators and monitoring functions to Users Settings Opens a dialog box for specifying the Alert Alarm Communication and Event Editor settings that you desire Help Displays GAM Client s on line help contents page Exiting Global Array Manager Exiting GAM Client Exit Global Array Manager Client as shown in Figure 3 10 Note Open Configuration 0 Save Configuration Ctrl S Clear Configuration Ctrl Q Figure 3 10 Select Exit We recommend leaving the Global Array Manager Client running as long as there are servers you wish to monitor or configure If you do exit you will be unable to receive events from GAM Server and you will not be informed of errors or status unless you restart GAM Client and reconnect to the server s Manual No 771961 3 13 For More Information Exiting GAM Server Some operating systems such as NetWare allow you to unload the GAM Server component while the file server remains running Other operating systems may require you to down the file server in order to exit from or remove the GAM Server component AN Caution Be aware that downing a file server may result in data loss if I Os are in progress along the network Exit the GAM Server component only if necessary For More Information This concludes the Startup amp Navigation chapter For additional information on Global Array Manager options and functionality refer to other
60. ave the option to do any of the following Enable by checking or disable by unchecking any of the following options Simplex No RSTCOM Allows a controller not to assert a reset signal to its partner controller Simplex environments only Left Symmetric RAIDS Algorithm Changes a Right Symmetric RAID 5 parity scheme to Left Symmetric This item is available only when there are no logical drives defined On Full Give Busy When a command is received and the controller detects a full queue it will return a busy status rather than Queue Full This helps hosts that do not accurately deal with Queue Full status Vendor Unique Test Unit Ready Status Enables a vendor unique TUR effect A TUR sent to an offline LUN will get a hard error status returned Manual No 771961 4 25 Setting and Modifying Controller Options No Pause On Controller Not Ready When the controller is not fully started certain commands encounter a pause This turns off the pause Auto Restore Allows the surviving controller to automatically sense and place an inserted replacement controller back in service Controller Present Fault Signals must be enabled Force Simplex Allows duplex firmware to work in a simplex environment by skipping some Active Active operations Controller Present Fault Signals DAC960SX only Informs a controller that certain signals should be used to detect the presence or absence of a partner controll
61. ck Data and Request Sense Data Battery Backup Unit A Battery Backup Unit is an add on module that provides power to a Mylex Disk Array Controller cache memory in the event of a power failure The battery backup module monitors the write back cache on the controller and provides power to the cache if it contains data not yet written to the drives when power is lost Cache Controller memory used to speed up data transfer to and from a disk Cache Flush Refers to an operation where all unwritten blocks in a Write Back Cache are written to the target disk This operation is necessary before powering down the system Manual No 771961 G 1 Glossary Cache Line Size The Cache Line Size function available in Controller Options or Manual Configuration is set in conjunction with stripe size and represents the size of the data chunk that will be read or written at one time The cache line size should be based on the stripe size you selected Channel Refers to one bus on a Mylex Disk Array Controller Each controller provides at least one channel and additional channels with optional upgrades Consistency Check Refers to a process where the integrity of redundant data is verified For example a consistency check of a mirrored drive will make sure that the data on both drives of the mirrored pair is exactly the same For RAID Level 5 redundancy a consistency connect is a function that allows a target device ty
62. ead only Channel for this controller Whether the controller will handle data at 8 bit or 16 bit transfers Maximum data transfer rate of the disk side channels Speeds are Asynchronous 5 MHz 8 MHz 10 MHz 20 MHz and 40 MHz LVD only 4 20 GAM Client v2 15 User s Manual Configuration SCSI Tag Queuing Enable in order to queue up commands to be executed by the target Click the OK button to accept the changes or the Cancel button to delete them Mylex External RAID Controllers Controller Options 21 x SCSI Parameters Channel 16 Bit C 8Bit r Global Parameters IV Enable Read Ahead Asynchronous C 5MHz Enable Disconnect On First Command C 8 MHz 10MHz Rebuild Rate 43 J gt C 20MHz p Startup Parameters Transfer Speed 20 MB s Spin up automatic Devices Between Spins 2 Initial Delay S ABD Gontraller Hast 1D 2 Sequential Delay 0 sec Fibre Advanced OK Cancel Figure 4 23 Controller Options Dialog Box For External DAC In the Controller Options dialog box Figure 4 23 you have the option to do any of the following Enable by checking or disable by unchecking any of the following Global Parameters Automatic Rebuild Management Works in conjunction with AEMI or SAFTE disk array enclosures to detect removal of a failed drive and perform an automatic rebu
63. eading and or printing e If earlier you chose to run GAM Client upon completion of installation GAM Client will open If you did not choose to run the Client software right away the install program exits to Windows This concludes Global Array Manager Client component installation Manual No 771961 2 9 Global Array Manager Client Component Installation 2 10 GAM Client v2 15 User s Manual Chapter 3 Startup amp Navigation Starting Global Array Manager Server Component Note Installation and startup of the Global Array Manager Server component 2 20 is covered in the Disk Array Controller Software Kit Installation Guide and User Manual Mylex Part Number 771929 The software diskettes for GAM Server are provided in the Disk Array Controller Software Kit Refer to the appropriate sections in the above mentioned manual for instructions on starting the Global Array Manager Server component under any of the following network operating systems NetWare 4 11 Windows NT 4 x SCO OpenServer 5 x UnixWare 2 x Client Component Note Install and start the GAM Server component before you attempt to run the GAM Client component Under Windows NT 3 51 4 x or Windows 95 you are ready to start up the Global Array Manager Client once you have installed the client on your workstation see the previous chapter Manual No 771961 3 1 Navigating Global Array Manager Client Start the
64. ect a line style to represent this analysis string in a line graph Your string is built Click New to add this string to the display box Repeat steps 1 through 9 to create additional analysis strings if you so desire OR If you want to add to an already built string select the string in the display box select additional devices under Device Selection and click the Add To button If you change the Item Operation Color or Line and click Add To the new selection replaces the previous one To delete analysis strings Select a string in the display box and click Delete OR Click Delete All to delete all defined analysis strings Manual No 771961 5 31 Performance Monitoring To save all your settings to a file for future use 1 Click Save Settings A Save As dialog box is displayed Figure 5 28 Save As L2 x Savein E 3 Floppy A amp e settingl gsf Filename Saveastype GAM Setings Fiestas Figure 5 28 Save Settings to a File 2 Enter a destination and filename for your settings file 3 Click Save To use previously saved settings 1 Click Open Settings An Open dialog box is displayed Figure 5 29 Open BES Look jn 3 Floppy zl e File name perisett ast Files of type Settings Files gsf x Cancel Figure 5 29 Open Previously Saved Settings 2 Enter a destination and select the settings file you wish
65. ement Allows the controller to take autonomous actions when a failure occurs Do not disable this function unless specifically instructed to do so as part of a troubleshooting diagnostic activity Disable by checking or enable by unchecking the following option Wide Transfer On Host When disabled the controller will negotiate only narrow data transfers Doing this unnecessarily will result in slower performance Expert Controller Options All External RAID Controllers Click the Expert button in the Advanced Controller Options dialog box to inspect and or change expert level External RAID Controller Options These options should remain at their defaults unless you have a high degree of expertise with External RAID Controller Options 4 24 GAM Client v2 15 User s Manual Configuration Expert Controller Options L2 x Enable Simplex No RSTCOM erne Left Sormmetic RADE Algorithm Enable On Q Full Give Busy gt T Enable Vendor Unique Test Unit Ready Status Enable No Pause On Controller Not Ready Host Bus Reset Delay Disabled V Disable CC For Invalid LUN yos Port Leaga SLP VT10OI Enable Auto Restore Enable Force Simplex Debug Serial Port Speed fi 32K Controller Present Fault Signals 18K Enable 96K v Signal Getz Signal Set B Figure 4 25 Expert Controller Options Dialog Box In the Expert Controller Options dialog box Figure 4 25 you h
66. ening an Event Information Window If you wish to obtain additional information about any event displayed in the Log Information Viewer this version of GAM Client allows you to open an event information window To open the event information window for a particular event 1 Be sure the Log Information Viewer is displayed 2 Determine which event you would like more information about scroll the Log Information Viewer if necessary and single click anywhere along the event line or double click in the Event ID field An event information window for your selected event is displayed An example is shown in Figure 5 3 Manual No 771961 5 3 Event Monitoring EventID E 135 Severity 2 x SOURCE 204 32 130 202 DEVICE ADDRESS ctl 3logdrv 0 DESCRIPTION logical drive is critical CAUSE Could be one or more of the following ne physical device failed REQUIRED ACTION eplace the physical device tart the rebuild if required Figure 5 3 Event Information Window A variety of information about the event is displayed to aid in your troubleshooting The Event ID and Severity Level are displayed in the window s titlebar SOURCE DEVICE ADDRESS and DESCRIPTION redisplay information available on the original event line The most useful fields are CAUSE Possible reasons that the event occurred and REQUIRED ACTION What you should do in response to this message Informational messages will most likely have
67. ent in the same folder where your previous GAM Client resides To upgrade GAM Client from Version 2 1x to Version 2 15 perform an uninstall on the GAM Client Version 2 1x using Add Remove Programs in the Control Panel folder and boot the client workstation recommended Follow the procedure to follow to install or upgrade GAM Client Note Under Windows 95 and Windows NT 4 x you may also install GAM Client using Add Remove Programs in the Control Panel 1 GAM2CL INI contains among other information communications and alarm settings and server group information names and or IP addresses of servers monitored by this client 2 2 GAM Client v2 15 User s Manual Installation 1 Make sure TCP IP is installed and functioning properly by running Ping software 2 Insert Global Array Manager Client Installation Disk 1 into your 3 5 inch floppy diskette drive 3 From the Windows NT 3 51 Program Manager select File Run or click the Start button and select Run for Windows 95 or Windows NT 4 x The Run dialog box appears Figure 2 1 Run HES Type the name of a program folder or document and Windows will open it for you Figure 2 1 Starting the Installation Program Note Screens in this section are taken from a Windows 95 installation If you are running Windows NT your screens may look different but the Global Array Manager Client installation is the same 4 Enter the following command i
68. er Disable by checking or enable by unchecking the following option CC For Invalid LUN Disables the check condition affecting the handling of the Inquiry command when the referenced LUN is invalid Set the Host Bus Reset Delay Allows the controller to reset the host in failover and failback situations When disabled no SCSI bus reset is generated on the host 1 14 generates reset this many seconds after the failover or failback occurs 15 generates immediate reset with no delay This is host SCSI only Set Serial Port Usage Select SLP VT100 emulation or Debug mode Set Serial Port Speed Sets the baud rate for the serial port from 2400 to 19200 baud Fibre Controller Options External Fibre Controllers Only The Fibre button only displays in the Controller Options dialog box when a Mylex Fibre Channel RAID Controller is currently selected Click the Fibre button in the Controller Options dialog box to inspect and or change Fibre options for External Fibre RAID Controllers These options should remain at their defaults unless you have a high degree of expertise with External Fibre RAID Controllers 4 26 GAM Client v2 15 User s Manual Configuration Fibre Controller Options v Enable Node Name Retention m Hard Loop IDs ControllerOPotO 0 125 Controller PotO 0 125 a M Controller OPot1 125 M Controller 1 Poti 0 125 ES n PCI Latency Control foc
69. essor and 16 MB of system memory are recommended Network interface card connected to a functioning network e 3 1 2 inch floppy disk drive Fixed disk with at least 8 MB available free space 16 MB recommended Mouse or other pointing device Appropriate network drivers for the installed network interface card For proper client component connectivity installed and functioning GAM Server software component on the server under any of the supported operating systems NetWare 4 11 Windows NT 4 x SCO UNIX OpenServer 5 x UnixWare 2 x For client component installation and operation Microsoft Windows NT 3 51 or 4 x or Microsoft Windows 95 installed on a local hard disk TCP IP stack installed Optional Modem or Fax Modem Hayes compatible MAPI compliant messaging client e g Microsoft Mail Refer to your server documentation and to the Windows documentation for more information on hardware and operating system requirements 1 4 GAM Client v2 15 User s Manual Chapter 2 Installation Installation Overview Installation of the Global Array Manager Client component requires one of the following operating systems Windows NT 3 51 or 4 x Windows 95 This chapter assumes that the network administrator for this site will be performing these installation procedures For Windows NT it is recommended that the GAM Server component be installed before the Client component Note The installation
70. ex Mode See Single Controller Simplex Mode Single Controller Simplex Mode A single controller attached to a set of drives that offers RAID functionality without the controller fault tolerance inherent in dual active mode Standard Disk Drive This term refers to a hard disk drive with SCSI IDE or other interface that is attached to the host system through a standard disk controller Standby Replacement of Disks Hot Spare The Standby Replacement or Hot Spare is one of the most important features the controller provides to achieve automatic non stop service with a high degree of fault tolerance The rebuild operation will be carried out by the controller automatically when a disk drive fails and both of the following conditions are true G 10 GAM Client v2 15 User s Manual Glossary A standby disk drive of identical or larger size is found attached to the same controller Allofthe system drives that are dependent on the failed disk are redundant system drives e g RAID 1 RAID 3 RAID 5 RAID 0 1 Note The automatic rebuild will only happen on the SAME controller never across controllers A Hot Spare disk can be created in one of two ways 1 When configuring via a Mylex configuration utility all disks attached to the controller that are NOT configured into any disk array will be automatically labeled as hot spare drives 2 A disk drive may also be added attached at a later time
71. f necessary A SETUP J GAM Client Setup loads the installation wizard Figure 2 2 Setup Global Array Manager Client Setup is preparing the InstallShield r Wizard which will quide you through the test of the setup process Please wait EI 39 Figure 2 2 Loading the Installation Wizard Manual No 771961 2 3 Global Array Manager Client Component Installation 5 After a few moments the Welcome dialog box appears Figure 2 3 Click Next to proceed with the installation or click Cancel to end the installation procedure and return to Windows Figure 2 3 Welcome Dialog Box 2 4 GAM Client v2 15 User s Manual Installation 6 You are prompted to identify this copy of the program Figure 2 4 Registration Mylex Corporatior Figure 2 4 Personalize Global Array Manager 7 To continue enter your name and optionally the name of your company in the appropriate text fields Click Next to proceed Note The Name field must be filled in order for you to be able to continue The information stored in the Name and Company fields is retained in the USER INI file 8 The installation program allows you to verify the information you entered Figure 2 5 To continue click Yes To change the information click No enter the desired information then click Next to return to the dialog box shown below Manual No 771961 2 5 Global Array Manager Client Component Installatio
72. for not supported on the current controller The firmware and BIOS versions residing on the controller The cache size and FlashROM size Whether the controller is part of a dual active fault tolerant pair The number of ports on this controller The bus width for data transfers and bus speed MB sec The bus type SCSI Fibre and number of channels on the controller The number of physical devices installed and the maximum number of physical devices that this controller can hold The number of logical drives configured on this controller and the maximum number of logical drives that can be configured Host Connection Information OS Controller number channel and target number Click the Controller Options button to view a dialog box of user definable controller parameters see Setting and Modifying Controller Options on page 4 19 Click the Kill Partner button to cause this controller s partner controller to be placed in reset The controller must be in duplex This is required before Expand Array Click the Relinquish Partner button to cause this controller s partner controller to return to an operating state This is required after Expand Array completes Click the Close button to close the Controller Information window Manual No 771961 5 11 Physical Device and Logical Drive Monitoring Physical Device and Logical Drive Monitoring Displaying Device Information The Controller View window details wh
73. guration will be overwritten and all data will be lost Data Retain Method z Utilize the remaining available space in an existing array or create anew array using unconfigured disk drives Existing data wvill not be affected by this process Expand the capacity of an existing array Existing data will not be affected by this process Cancel Figure 4 41 Select New Configuration Manual Configuration New Configuration 204 32 130 202 Controller 2 1 Welcome 2 Disk Arrays 3 Logical Drives Disk Arrays MB Logical Drives MB eS ESSI ES ES RESI EST Unused Disk Drives KEEN 0 4 Add Array Make Spare Clear All Cancel Figure 4 42 Manual Configuration Disk Arrays The Disk Arrays tab in Manual Configuration is where you begin to configure your unused disk drives lower left Figure 4 42 Each disk array is represented by one line in the Disk Arrays area of the screen upper left 4 42 GAM Client v2 15 User s Manual Configuration Figure 4 42 Logical drives if any have already been configured appear on the right side Note For External RAID Controllers there will be a fourth tab called 4 LUN Mapping The Apply button for External RAID Controller configuration resides on the LUN Mapping page See LUN Mapping in Global Array Manager on page 4 48 for more information Do the following 1 Select an unused drive and d
74. gured system where the data redundancy features of the controller are used system service continues without interruption A message is generated by the system to alert the system operator When a replacement drive becomes available the system operator can remove the failed disk drive install a new disk drive and instruct the controller to rebuild the data on the new drive all without interrupting system operations G 4 GAM Client v2 15 User s Manual Glossary Once the rebuild is complete the controller will be brought back into a fault tolerant state IBBU See Intelligent Battery Backup Unit Intelligent Battery Backup Unit The Intelligent Battery Backup Unit IBBU is an add on module that provides power to a compatible PCI to Ultra SCSI or External RAID Controller cache memory in the event of a power failure The battery backup module monitors the write back cache on the controller and provides power to the cache if it contains data not yet written to the drives when power is lost A PCI to Ultra SCSI RAID controller with the IBBU installed together occupy only one PCI slot on the host backplane LUN See Logical Unit Number LUN LUN Mapping External RAID Controller LUN Mapping allows logical drives or system drives to be made available or unavailable on one or more host ports The mapping is performed by assigning Logical Unit Numbers LUNs to logical drives The LUN assignments are per
75. h horizontal grid mark s value for example from 0 to 1 1 to 2 etc will equal the number of milliseconds you ve specified The Graph Data box allows you to see currently generated data from the selected server Present or previously saved data Past from the buffer or from a data file selected within the Settings page Manual No 771961 5 35 Process Status Monitoring To change Graph Options for a particular analysis string 1 Select the analysis string of interest in the display window 2 Click Graph Options You can change whether this string s data will be visible whether the data will autoscale along the Y axis the Y axis multiplier and Y offset Note If you want to compare data from different analysis strings their Y multiplier and Y offset settings should be the same To exit Click Close to exit from Statistics View OR Click the Settings tab Process Status Monitoring Initialization Status If logical drives are currently being initialized open the Initialize Status box as shown in Figure 5 33 to monitor the progress of or cancel the process v Global Status View Controller View Statistics View Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Error Table Figure 5 33 Select Initialize Status 5 36 GAM Client v2 15 User s Manual Monitoring Drive Cancel Done Ul SS 353
76. hanged regardless of the level of RAID installed The controller makes the physical configuration and RAID level implementation transparent to the host operating system Replacement Table A replacement table contains information regarding which devices have been replaced by others through standby replacement Rotated XOR Redundancy This term also known as parity or consistency data refers to a method of providing complete data redundancy while requiring only a fraction of the storage capacity of mirroring In a system configured under RAID 3 or Manual No 771961 G 9 Glossary RAID 5 which require at least three drives all data and parity blocks are divided between the drives in such a way that if any single drive is removed or fails the data on it can be reconstructed using the data on the remaining drives XOR refers to the Boolean Exclusive OR operator In any RAID 3 or RAID 5 array the capacity allocated to redundancy is the equivalent of one drive SCSI Drive A disk drive equipped with a SCSI interface sometimes referred to as a SCSI Disk Each disk drive will be assigned a SCSI address or SCSI ID which is a number from 0 to 7 0 to 15 under Wide or Ultra SCSI The SCSI address uniquely identifies the drive on the SCSI bus or channel Session Refers to the period of time between any two consecutive system shutdowns System shutdown may be either a power off on or a hardware reset Simpl
77. hannels and target physical devices or logical drives to include for performance analysis You select an item and operation to analyze define a color and line segment to differentiate this analysis from others used for comparison and optionally save your settings and capture data to a file Figure 5 27 shows the Settings page Manual No 771961 5 29 Performance Monitoring Performance Analysis 204 32 130 200 x Settings History Device Selection Device type Controller Channel E Physical C Logical All 0 1 DAC960PD 1 Item CommandFinish s 7 Operation Read 7 Colo cuo Chn Tat Tatl Line No Device Item peration Color Line 0 Tat TatT CommandFinis Read ma Add To Delete Delete All Display Data Capture Data Save Settings Open Settings Close Figure 5 27 Performance Analysis Settings You build a string which defines a line of data on a line graph a section of a pie graph or a bar on a bar graph Each string consists of one or more controllers channels and physical devices or logical drives to include in the analysis an item and operation to be analyzed and a color and line style for line graphs to represent this string graphically To build an analysis string 1 In Device type select either physical devices or logical drives for the analysis string you re building In Device Selection do
78. host port and are independent of the assignments on other host ports Logical drives may be assigned only one LUN per host port By not assigning a LUN to a logical drive on a particular host port that logical drive is made inaccessible to that host port Logical Drive States The state of a logical system drive can be either ONLINE CRITICAL or OFFLINE Notice that the same term online is used for both physical and logical drives Manual No 771961 G 5 Glossary Online A Logical Drive is in an online state if All of its member drives are online Critical A Logical Drive is in a critical state if It has been configured at RAID level 1 3 5 or 0 1 and One and only one of its member drives is not online A logical drive is considered critical because any failure of another of its member drives may result in a loss of data Note I O operation can only be performed with logical drives that are online or critical Offline A Logical Drive is in an offline state if No data can be read from it or written to it System commands issued to offline logical drives are returned with an error status no operations can be performed on offline logical drives A logical drive can be offline under one of two situations described below e tis configured with a redundant RAID level 1 3 5 or 0 1 and two or more of its member drives are not online or tis conf
79. ich physical devices are associated with each controller channel Each stack of drives represents the physical drives connected to a single channel on the controller Double click a physical device icon to display information about a particular physical device A physical device can be a host controller a CD ROM drive disk drive tape drive etc Host Device Information Channel 0 Target 7 Lun 0 Figure 5 11 Host Device Information RAID Controller Disk Device Information Channel 0 Target 2 Lun 0 Mane itane Make Online Figure 5 12 Disk Device Information 5 12 GAM Client v2 15 User s Manual Monitoring Device Information Figure 5 11 Figure 5 12 displays the following about the currently selected physical device Device Information RAID Controller The vendor or source of the controller The controller s product identification such as DAC960PG The revision level of the hardware The bus width in bits Whether the following parameters are set to Yes or No Synch Soft Reset Linked Command Queuing ANSI Version supported Transfer speed and bus width device state Device Information Disk Drive The vendor or source of the drive The drive s product identification such as ST32550W The revision level of the firmware in the drive The bus width in bits Whether the following parameters are set to Yes or No Synch Soft Reset Linked Command Queuing ANSI Versi
80. igured at RAID level 0 JBOD or in a spanned set PCI only and one or more of its member drives are not online Logical Drives A logical drive is equivalent to a system drive Logical drives are presented to the operating system as available disk drives each with a capacity specified by the Mylex Disk Array Controller Logical Unit Number LUN A SCSI representation of a system drive logical drive on a given channel and target ID G 6 GAM Client v2 15 User s Manual Glossary Mirroring Refers to the 100 duplication of data on one disk drive to another disk drive Each disk will be the mirror image of the other Pack See Drive Groups or Drive Packs Parity See Rotated XOR Redundancy Physical Drive States Refers to a drive s current operational status At any given time a drive can be in one of five states READY ONLINE STANDBY DEAD or REBUILD The controller stores the state of the attached drives in its non volatile memory This information is retained even after power off Hence if a disk drive is labeled DEAD in one session it will stay in the DEAD state until a change is made either by using a system level utility or after a rebuild Each of the states is described below Ready A disk drive is in a ready state if it Is powered on and Is available to be configured during the current session but remains unconfigured Note Ready State does not app
81. il address of someone who will receive an email Manual No 771961 4 13 Setting and Modifying User Preferences Enter the subject of the email 4 To test the email using the settings you ve input click Test When you are satisfied with the Email you ve set up click OK Your new Email entry appears in the lower window of the Alarm Setup dialog box Refer back to Figure 4 15 for an example Remove Email 1 Select the Email alarm type in the upper window of Alarm Setup Select the Email entry to remove in the lower window of Alarm Setup Click Remove E OP At the confirmation message click Yes to remove the Email entry or click Cancel to keep the entry Add an Application to Launch 1 Select the Launch Application alarm type in the upper window of the Alarm Setup dialog box Figure 4 17 Settings BE Alert Preferences Alarm Setup Communication Event Editor Pager H Fax 8 9 Email 5 811 Launch Application A C Program FilesNMy amp pps Notify exe Application Name Launch Once 1 C Program Files MyApps Natify exe Yes Remove Properties Figure 4 17 Launch Application Alarm Setup 2 Click Add 4 14 GAM Client v2 15 User s Manual Configuration The Launch Application setup box is displayed as shown in Figure 4 18 Launch Application I2 x v Enabled M Launch Only Once Application Name Browse Cancel Figure 4 18 Launch
82. ild after installation of a replacement drive Do not disable this unless you are sure of the consequences Active Negation Not available for External RAID Controllers Read Ahead Reads data to the next stripe boundary based on stripe size and retains in cache any data beyond the size of the actual read request Manual No 771961 4 21 Setting and Modifying Controller Options Disconnect On First Command Not available for External RAID Controllers Change the default Rebuild Rate to less than 50 A rate of 50 devotes the maximum allowable resources to a drive rebuild or array expansion allowing the Rebuild or Expand to proceed at its fastest Lowering the number devotes more resources to I Os and consequently slows the Rebuild or Expand Change any of the following Startup Parameters Spin up Change if you do not want automatic drive spin up Other choices are to spin up at power on or to wait for a command and then do an automatic drive spin up Devices Between Spins Number of devices to spin up at one time A low number lessens the likelihood of a power drain Initial Delay Number of seconds to wait before spinning up the first disk set Sequential Delay Number of seconds between consecutive device spin up cycles Change any of the following SCSI Parameters note that Transfer Speed is not changeable Channel selects the channel to be viewed for the current data Whether the channe
83. ion box located in the Global Array Manager window Functions in the same way as directly selecting the controller selection box Manual No 771961 3 9 Navigating Global Array Manager Client RAID Assist Mylex s built in RAID Controller configuration utility Facilitates configuration tasks using either one step automatic configuration a configuration wizard assistant or a manual advanced level configuration option allowing more control over configuration parameters Initialize Logical Drives Offers the ability to run a full initialization of logical drives at a time of your choice NOT just immediately following a new configuration If it s inconvenient to follow a configuration immediately with a logical drive initialization you can decline the initialization and use this menu item to start the process at a later time Display Controller Information Displays key information about the currently selected controller The Controller Information screen is read only Controller Options Sets various parameters for the selected Disk Array Controller or SCSI HBA Unlike Controller Information user definable controller parameters are modified in Controller Options Intelligent BBU Only enabled if the selected controller has the Intelligent Battery Backup Unit installed Displays a dialog box from which you can do the following Monitor the power remaining in the Intelligent BBU Request reconditioning of the I
84. l will negotiate 8 bit or 16 bit transfers Maximum data transfer rate of the disk side channels Speeds are Asynchronous 5 MHz 8 MHz 10 MHz 20 MHz and 40 MHz LVD only Advanced Controller Options All External RAID Controllers Click the Advanced button in the Controller Options dialog box to inspect and or change additional External RAID Controller Options 4 22 GAM Client v2 15 User s Manual Configuration Advanced Controller Options 1 230 64 244 Queue Limit 2 gt IOPs Limit 244 L IV Enable Conservative Cache Mode Enable Super Read Ahead SRA Enable SAF TE Use Of UPS Enable Restrict Reassign To One Block Enable Smart Large Host Transfers Enable True Verification Of Data Enable Elevator Ordering Of Device Queues Enable WriteThrough Verify Enable Coalesce Device Queues Disable Wide Transfer On Host v Enable Operational Fault Management Expert OK Figure 4 24 Advanced Controller Options Dialog Box In the Advanced Controller Options dialog box Figure 4 24 you have the option to do any of the following e Set the following limits Queue Limit Maximum allowed queue depth for tagged commands to each attached drive Settings are from 1 no tags to 230 MAXIOPs Limit Sets maximum number of IOP structures allowed for controller command operations limiting the number of simultaneous commands Settings are from 64 to 244
85. lick the Stop Capture button You may wish to save the contents of the data buffer to a file for later examination To save the data buffer to a file 1 Click Capture Data 2 Select Save Buffer and type a filename for the data file to be saved or click Browse to find an existing data file and append the buffer to it 3 Click OK Manual No 771961 5 23 Performance Monitoring To display previously saved data 1 Click Display Data A display Data dialog box opens Figure 5 22 Display Data Data Source f204 32 130 200 Browse datal sdf Figure 5 22 Display Data 2 Select a data file to display or click Browse to locate a data file in a different directory Note Selecting the IP Address in the Data source box indicates that you wish to view data currently being generated by that server Only the currently selected server will be displayed 3 Click OK to open the data file for display or the server currently generating data You view saved data by clicking the Line Graph tab and choosing Past in the Graph Data box You view current data by clicking the Line Graph tab and choosing Present in the Graph Data box or by clicking the Pie Graph or Bar Graph tab 5 24 GAM Client v2 15 User s Manual Monitoring Line Graph Click the Line Graph tab to open the Line Graph data page Figure 5 23 Statistics 204 32 130 200 Lx Settings Line Graph Pie Graph Bar Graph
86. lick a logical drive in Controller View right side of a Controller View window 2 Click the Consistency Check button in the Logical Drive Information dialog box to begin A message is displayed asking if you would like consistency to be restored in the event of errors Figure 6 1 Manual No 771961 6 1 Running a Logical Drive Consistency Check Consistency Check 2 Restore consistency if errors are found during the consistency check Figure 6 1 Restore Consistency If Errors Are Found 3 Click Yes to restore consistency during the process A Caution If consistency data is badly corrupted on a logical drive attempting to restore consistency may result in corrupted real data Use the Yes option with caution Click No if you just want to carry out the consistency check There is no risk of data loss Errors will still be reported to the Error Table but no attempt will be made to correct them Consistency Check runs and the Consistency Check Status box appears see the previous chapter Close the box and continue or leave the box open until Consistency Check has completed 6 2 GAM Client v2 15 User s Manual Maintenance Processes Running a Device Rebuild If a single device in a fault tolerant system fails the system is spared data loss by virtue of the striping with parity present across the logical drive RAID 3 RAID 5 or the total redundancy of data RAID 1 RAID 0 1 The failed drive needs to be repl
87. ly for Mylex External RAID Controllers Online A disk drive is in an online state if it Is powered on and Has been defined as a member of a drive group and Is operating properly Manual No 771961 G 7 Glossary Standby A disk drive is in a standby state if it Is powered on and Is able to operate properly and Was NOT defined as part of any drive group Dead A disk drive is in a dead state if it Is not present or If it is present but not powered on or If it failed to operate properly and was killed by the controller When the controller detects a failure on a disk it kills that disk by changing its state to dead A drive in a dead state does not participate in any I O activity No commands are issued to dead drives Rebuild A disk drive is in a rebuild state While it is in the process of being rebuilt During this process data is regenerated and written to the disk drive This state is sometimes referred to as Write Only WRO RAID RAID stands for Redundant Array of Independent Disks Several different forms of RAID implementation have been defined Each form is usually referred to as a RAID level The basic RAID levels supported by Mylex Disk Array Controllers are shown below The appropriate RAID level for a system is selected by the system manager or integrator This decision will be based on which of the following are to be emphasized
88. mputer systems Depending on the model and configuration of the controller there may be from one to four host ports Each configured logical drive consumes a particular bus target ID LUN on the host system Multiple sets of disk drives are connected to the controller via its drive channels There may be as many as six drive channels depending on the controller model and configuration In duplex or Active Active mode two identical External RAID Controllers are connected to the same hosts via their host ports to the same drives via their drive channels and to each other via a special hardware link for heartbeat sensing This forms a redundant controller system The two controllers work together handling data traffic and mirror their write data in each other s cache memory If one of the controllers fails or otherwise becomes non operational the surviving controller takes over its responsibilities with no loss of data External RAID Controller The controller acts as a bridge between host channels and drive channels and implements the RAID function On the drive channels the controller acts as an initiator The host channel ports are implemented as target IDs with logical drives presented as LUNs under the target IDs Hot Replacement of Disks Hot Swap The design of Mylex RAID controllers allows for the replacement of failed hard disk drives without interruption of system service In the event of a drive failure on a properly confi
89. n Registration Confirmation Figure 2 5 User Verification Dialog Box 9 Inthe Destination Directory area in Figure 2 6 the suggested directory path for installation of GAM Client reads C Program Files Mylex GAM Client select a different destination directory click Browse and navigate to the directory you wish to select or To proceed with the installation click Next Choose Destination Location Figure 2 6 Destination Path for Global Array Manager 2 6 GAM Client v2 15 User s Manual Installation 10 During installation files are decompressed and copied from installation Disk 1 to the destination directory Figure 2 7 Figure 2 7 Installation Progress Display for Disk 1 11 Setup will request that you to insert Global Array Manager Client Installation Disk 2 when appropriate Figure 2 8 Setup Needs The Next Disk Figure 2 8 Insert Installation Disk 2 12 The Installation Progress Display as was shown in Figure 2 7 continues until it registers 100 Figure 2 9 Figure 2 9 Installation Complete Manual No 771961 2 7 Global Array Manager Client Component Installation Shortly thereafter the following display appears Figure 2 10 Setup Complete Figure 2 10 View ReadMe File or Run GAM To view changes and updates to the program or installation guide check the box which reads Yes I want to view the ReadMe file now T
90. nt Server Group Ctl G Select Current Controller Ctrl C Baid Assist Initialize Logical Drives Display Controller Information Controller Options Intelligent BBLI Scan Devices Advanced Functions Settings Figure 4 2 Select Sign On Do the following 1 Type the password previously enabled on the server that corresponds with username gamroot This should provide Administrator access privileges 2 Click the Sign On button Manual No 771961 4 3 Setting Up Server Groups and Servers Setting Up Server Groups and Servers Adding a Server Group to the Server Group List Open Define Server Groups as shown in Figure 4 3 Define Server Groups Select Current Server Group Ctl G Select Current Controller Ctrl C Baid Assist Initialize Logical Drives Display Controller Information Controller Options Intelligent BBU Scan Devices Advanced Functions Settings Figure 4 3 Select Define Server Groups Define Server Groups i2 lx Server Groups Servers 192 192 1921 Figure 4 4 Define Server Groups Dialog Box In the Define Server Groups dialog box Figure 4 4 do the following 1 Click the Add button under the Server Groups section of the dialog box 2 Inthe Adding Item dialog box enter a name for the server group that you are adding 4 4 GAM
91. ntelligent BBU The Intelligent BBU s features and functionality are described in detail elsewhere GAM simply offers a way of keeping up to date as to the condition and charge in the battery so that in the case of a power outage the user need not worry that the Intelligent BBU will totally discharge 3 10 GAM Client v2 15 User s Manual Startup amp Navigation Scan Devices Scans for new devices that have recently been added and are not currently identified within Global Array Manager Advanced Functions Opens a submenu Figure 3 6 from which you can select the following options Performance Analysis Allows detailed analysis of disk level performance along several parameters Flash Utility Provides the ability to upgrade controller firmware as new firmware maintenance releases become available Scan Devices Advanced Functions Performance Analysis Flash Utility Settings Figure 3 6 Advanced Functions Submenu Settings Opens a tabbed dialog box in which you can specify the Alert Alarm Communication and Event Editor settings that you desire Examples of such settings include type of alarm such as pager fax email etc modem baud rate COM port stop bits data bits parity event severity level event message editing and so on Window Menu Window Tile Cascade 1 Global Status View 2 Log Information Viewer wv 3 Controller View 204 32 1 30 202 Controller2 gamraat
92. o the disk and writes the data out to a new location on the disk Drive Groups or Drive Packs A drive group is a group of individual disk drives preferably identical that are logically tied to each other and are addressed as a single unit In some cases this may be called a drive pack when referring to just the physical devices Up to eight 8 drives can be configured together as one drive group All the physical devices in a drive group should have the same size otherwise each of the disks in the group will effectively have the capacity of the smallest member The total size of the drive group will be the size of the smallest disk in the group multiplied by the number of disks in the group For example if you have 4 disks of 400MB each and 1 disk of 200MB ina pack the effective capacity available for use is only 1000MB 4 200 not 1800MB Dual Active Duplex Mode A method of interconnecting multiple RAID controllers that share a common set of drives In addition to increasing overall performance this method allows a surviving controller to take over resources of a failed controller This failover process is transparent to the host Duplex Mode See Dual Active Duplex Mode Error Table See Bad Block Table or Bad Data Table Manual No 771961 G 3 Glossary External RAID Operation External RAID Controllers use their host ports to connect to one or more Host Bus Adapters in one or more host co
93. offers the Manual Configuration option allows additional control over logical drive setup parameters including LUN Mapping for External RAID Controllers Entering RAID Assist Open RAID Assist as shown in Figure 4 28 Sign On Define Server Groups Select Current Server Group Ctl G Select Current Controller Ctrl C Raid Assist Initialize Logical Drives Display Controller Information Controller Options Intelligent BBLI Scan Devices Advanced Functions Settings Figure 4 28 Select RAID Assist Manual No 771961 4 29 Running RAID Assist Raid Assist 204 32 130 202 Controller 2 1 Welcome Welcome to RAID Assist RAID Assist allows you to set up new configurations add logical drives to existing configurations and expand the capacity of existing arrays To get started with RAID Assist choose a configuration method below Creates an optimal configuration using all available drives with minimal user input Creates or modifies a configuration using a 2 step by step question and answer format Assisted Configuration Creates or modifies configuration using only information provided by the user Manual Configuration Cancel Figure 4 29 RAID Assist Welcome Dialog Box In the RAID Assist Welcome dialog box Figure 4 29 do one of the following Click the Automatic Configuration button if you want to pro
94. on drive 1 block 5 on drive 2 and so on This storage method increases the disk system throughput by ensuring a balanced load among all drives System Drive Affinity See LUN Mapping System Drives See Logical Drives Target ID A target ID is the ID of a device attached to a controller Write Back Cache Refers to a caching strategy whereby write operations result in a completion signal being sent to the host operating system as soon as the cache not the disk drive receives the data to be written The target drive will receive the data at a more appropriate time in order to increase controller performance An optional cache battery backup or an Uninterruptable Power Supply UPS can be used to protect against data loss as a result of a power failure or system crash during the time the data is only in the cache Write Through Cache Refers to a caching strategy whereby data is written to the drive before completion status is returned to the host OS This caching strategy is considered more secure since a power failure is less likely to cause loss of data However a write through cache results in a slightly lower performance G 12 GAM Client v2 15 User s Manual
95. on supported The negotiated transfer speed MB sec and negotiated bus width The physical capacity of the disk device in MB The current status of the disk online offline etc Sector size usually 512 bytes The number of soft hard parity and miscellaneous errors registered In the disk drive Device Information dialog box Click the Reset Errors button to return all error tallies to 0 If the disk drive s status is dead the Rebuild button may be available so that you can initiate a physical device rebuild Manual No 771961 5 13 Physical Device and Logical Drive Monitoring If the physical device is unconfigured the Make Hot Spare button may be available to set this device as a hot spare Make Online and Make Offline buttons should be used with great caution Refer to the online help file or call Mylex for support on these options In any Device Information dialog box Click the Close button to close the dialog box Viewing the Bad Block Table and Request Sense Data Open the Error Table as shown in Figure 5 13 v Global Status View Controller View Statistics View v Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Error T able Figure 5 13 Select Error Table 5 14 GAM Client v2 15 User s Manual A screen of the following type appears Figure 5 14 Error Table Bad Block Table Request Sense Dat
96. ontroller The number of physical devices installed and the maximum number of physical devices that this controller can hold The number of logical drives configured on this controller and the maximum number of logical drives that can be configured Host information bus number slot number and IRQ Click the Controller Options button to view a dialog box of user definable controller parameters see Setting and Modifying Controller Options on page 4 19 Click the Close button to close the Controller Information window Mylex External RAID Controllers Figure 5 10 shows the Controller Information window for an External RAID Controller Controller 0 Information x Model DACSE0SX Intelligent BBU NA Firmware Version 4 19 0 0 BIOS Version gt Cache Size 16MB FlashROM Size 512 Fault Tolerant Yes Ports go Bus Width 16 Bits WVide Bus Speed 20 Bus Type SCSI Channels Fl Physical Devices 5 Max Physical Devices 32 Logical Drives 24 Max Logical Drives s f Host Connection Information Controller 2 Channel 0 Target 10 Patiner Relinquish Partner Controller Options Figure 5 10 Controller Information External RAID Controllers 5 10 GAM Client v2 15 User s Manual Monitoring The following information is displayed The controller model of this controller 0 C 0 1 C 1 2 C 2 etc Whether an Intelligent Battery Backup Unit is installed N A
97. orun Global Array Manager right away check the box which reads Yes I want to run Global Array Manager now To finish installation click Finish 13 If you chose to view the ReadMe file README TXT the Notepad accessory will open and the README TXT file will be presented 2 8 GAM Client v2 15 User s Manual Installation Readme txt Notepad Ot x File Edit Search Help Release Notes for Global Array Manager Client software for Windows 95 amp NT Version 2 15 Build 8 Copyright c 1994 98 Mylex Corporation 11 rights reserved A GENERAL INFORMATION 1 Mylex recommends using this version of the GAM Client with version 2 15 or 2 26 of the GAM Server Software 2 To disable the Alarm Sound notification from the Controller View window use the lt Ctr1 gt R hotkey combination B KNOWN LIMITATIONS 1 The Scan Devices function will scan for new scsi devices on all controllers instead of just the selected controller 2 Several screens are difficult to navigate via the keyboard Figure 2 11 GAM Client Readme txt File in Notepad Read the contents of this file for the most up to date information about Global Array Manager Client Much of this information may not appear in this installation guide as sometimes last minute modifications to the software are done after completion of the guide You may also wish to print the contents of this file 14 Close the Notepad accessory after r
98. oted companies names and data used in examples herein are fictitious Our Policy Although reasonable efforts have been made to assure the accuracy of the information contained herein this publication could include technical inaccuracies or typographical errors Mylex Corporation expressly disclaims liability for any error in this information and for damages whether direct indirect special exemplary consequential or otherwise that may result from such error including but not limited to loss of profits resulting from the use or misuse of the manual or information contained therein even if Mylex Corporation has been advised of the possibility of such damages Any questions or comments regarding this document or its contents should be addressed to Mylex Corporation at the address shown on the cover The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law MYLEX CORPORATION PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties or the limitation or exclusion of liability for indirect special exemplary incidental or consequential damages in certain transactions therefore this statement may not apply to you Also you may have other rights which var
99. pically a disk drive that received a request to perform a relatively long I O operation to release the bus so that the controller can send commands to other devices When the operation is complete and the bus is needed by the disconnected target again it is reconnected Disk Failure Detection The controller automatically detects disk failures A monitoring process running on the controller checks among other things elapsed time on all commands issued to disks A time out causes the disk to be reset and the command to be retried If the command times out again the disk could be killed taken offline by the controller its state changed to dead Disk Media Error Management Mylex Disk Array Controllers transparently manage disk media errors Disks are programmed to report errors even ECC recoverable errors When a disk reports a media error during a read the controller reads the data from the mirror RAID 1 or 0 1 or computes the data from the other blocks RAID 3 RAID 5 and writes the data back to the disk that encountered the error If the write fails media error on write the controller issues a G 2 GAM Client v2 15 User s Manual Glossary reassign command to the disk and then writes the data to a new location Since the problem has been resolved no error is reported to the system When a disk reports a media error during a write the controller issues a reassign command t
100. ply Fault Tolerance MES button to implement the configuration Raid Level If you wish to redefine the configuration go to Welcome page and select vum E Manual Configuration 00 Configuration Summary Physical drives 4 Logical drives 1 Physical capacity 12408MB Logical capacity 8272 Hot spares gm RAID level RAIDS Stripe size BKB Cache line size 8KB Enable write cache No Initialize No lt Back Apply Figure 4 31 Automatic Configuration gt New Configuration gt Finish The Finish screen appears Figure 4 31 Do the following 1 Examine the Configuration Summary for details about the configuration that RAID Assist will set up 2 If you want to start over click the Back or Cancel button OR If you want to view the configuration before it is applied to the controller click the Details button You will be taken to an equivalent of the Disk Arrays page as shown in Manual Configuration except that you can only view and close the details window 3 If you accept the configuration as presented click the Apply button at the Finish page to apply the new configuration to the controller A warning confirmation box appears as shown in Figure 4 32 4 32 GAM Client v2 15 User s Manual Configuration WARNING x This process is data destructive 1 If you want to proceed confirm by typing the word YES om Figure 4 32
101. r equivalent in MB 7 Do you want to initialize logical drives Yes No This is done after the configuration has been applied Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Figure 4 37 Assisted Configuration Logical Drives 4 38 GAM Client v2 15 User s Manual Configuration Optimization Tab Figure 4 38 8 Choose between write cache enabled write back or write cache disabled write through 9 Select Stripe Size valid options are in the list 10 Select Cache line size see below Valid cache line size values depend on the stripe size setting and are listed appropriately once you ve selected a stripe size Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Figure 4 38 Assisted Configuration Optimization Manual No 771961 4 39 Running RAID Assist Assisted Configuration New Configuration 204 32 130 202 Controller 2 1 Welcome 2 Fault Tolerance 3 RAID Level 4 Logical Drives 5 Optimization 6 Finish RAID Assist has completed the configuration You can view details of the configuration by clicking Details button If 4 you are satisfied with the configuration as defined below click the Apply Fault Tolerance button to implement the configuration Raid Level If you wish to redefine
102. r group that is in contact with the current client workstation Each group may consist of multiple servers You may select a specific server group to view or select All Servers if you want to view all the servers that are connected to this workstation Item 4 is the GAM Client controller selection box When selected the box displays the controller ID C 0 C 1 etc and controller type BT 952 DAC960PJ etc of each SCSI HBA and PCI SCSI or External RAID Controller connected to the currently selected server see below For External RAID Controller duplex pairs a double pointed white arrow connects the controller pair selections Components of the Global Status View Window The major components of the Global Status View window Figure 3 1 are described below 5 Item 5 is an icon that represents the currently selected file server running the GAM Server component The icon identifies the IP address e g 192 192 200 5 or name e g ide40 of the server the network operating system running on the server e g SCO SCO OpenServer NT Windows NT NW Novell NetWare etc the operational status of the server green functioning yellow critical red X down or nonfunctional the number of DAC PCI SCSI or External RAID controllers and or SCSI HBA controllers connected on the server with a controller operational status light green functioning yellow critical red X down or nonfunctional
103. rag it to the Disk Array AO section The drive will be part of a disk array referred to as 0 2 Select other unused drives and drag them to Disk Array AO OR click the Add Array button to create a row for Disk Array A1 then A2 A3 etc then drag unused drives to A1 if you so desire 3 If you want to manually configure a hot spare click an unused drive then click the Make Spare button 4 If you want to start over click the Clear All button and start again Manual No 771961 4 43 Running RAID Assist 5 Once you ve assembled the disk array groups click the Logical Drives tab to continue on to logical drive setup Figure 4 43 Manual Configuration New Configuration 204 32 130 202 Controller 2 1 Welcome 2 Disk Arrays 3 Logical Drives Drive Logical RAID Capacity MB Capacity Write Init Stripe Cache No Drives Level Logical Physical Utilization Cache Drive Size Size New Reset Rano gt ee ere ewe 0 Paos em ex exer ee Delete Drive Clear All Apply Cancel Figure 4 43 Manual Configuration Logical Drives The Logical Drives tab in Manual Configuration is where you configure your disk arrays into logical drives Your first logical drive will set the stripe size and cache line size for all logical drives on this controller Do the following 1 Selecta RAID level for your first logical drive Supported RAID levels are RAID 0 RAID
104. ration if you are finished setting up logical drives OR Repeat the process above to set up additional logical drives then click Apply when you re done If you are configuring a Mylex External RAID Controller click the LUN Mapping tab to continue with configuration see LUN Mapping in Global Array Manager on page 4 48 OR Repeat the process above to set up additional logical drives then click the LUN Mapping tab when you re done An example of a completed Manual configuration is shown in Figure 4 44 Manual No 771961 4 45 Running RAID Assist Manual Configuration New Configuration 204 32 130 202 Controller 2 Figure 4 44 Sample Manual Configuration Just Before Apply Note In Manual Configuration Add Logical Drive and Expand Array function very similarly to what was shown above In each of these two cases however RAID Assist shows you the disk arrays and logical drives and allows you to add to the configuration without risking existing data 4 46 GAM Client v2 15 User s Manual Configuration External RAID Controller Operation Overview External RAID Controllers use their host ports to connect to one or more Host Bus Adapters in one or more host computer systems Depending on the model and configuration of the controller there may be from one to four host ports Each configured logical drive consumes a particular bus target ID LUN on the host system Multiple sets of disk drives are
105. rd drive error found 4 Hard drive PFA condition found this drive may fail soon 22 Parity error found 23 Soft error found 24 Misc error found A 2 GAM Client v2 15 User s Manual Error Codes 289 305 386 389 393 399 Temperature is above 50 degrees Celsius StorageWorks enclosure reported critical state Internal log structures getting full PLEASE SHUTDOWN AND RESET THE SYSTEM IN THE NEAR FUTURE Controller has been reset Battery Power Low Controller s partner is gone controller is in failover mode now Information Level 4 1 2 5 6 7 8 13 14 15 16 17 19 20 21 25 28 128 129 130 133 A hard disk in array changed status A hard disk been added as hot spare An automatic rebuild has started A manual rebuild has started Rebuild is over Rebuild is cancelled A new physical device has been found A physical device has been removed A previously configured device is now available Expand Capacity Started Expand Capacity Completed SCSI command timeout on physical device SCSI command abort on physical device SCSI command retried on physical device SCSI device reset Request Sense Data available A Consistency check is started Consistency check is finished Consistency check is cancelled No Message Manual No 771961 A 3 Information Level 4 136 137 138 139 140 144 145 146 148 149 150 151 153 154 155 257 259 273 275 290 292 306 384
106. s you provide answers to several questions Fault Tolerance Tab Figure 4 34 1 Do you want Fault Tolerance Yes No 2 Do you want a Hot Spare Yes No Assisted Configuration N ew Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Finish Figure 4 34 Assisted Configuration Fault Tolerance Manual No 771961 4 35 Running RAID Assist RAID Level Tab If Fault Tolerance Was Yes Figure 4 35 3 Choose between e Parity error correction RAID 5 RAID 3 Fully redundant drives RAID 1 RAID 6 Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Figure 4 35 Assisted Configuration RAID Level With Fault Tolerance 4 36 GAM Client v2 15 User s Manual Configuration RAID Level Tab If Fault Tolerance Was No Figure 4 36 4 Choose between Striping RAID 0 or Stand alone drive JBOD Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Figure 4 36 Assisted Configuration RAID Level With No Fault Tolerance Manual No 771961 4 37 Running RAID Assist Logical Drives Tab Figure 4 37 5 How many logical drives do you want to create 1 32 for PCI 1 8 for External 6 How much capacity do you want to use default 100 available space o
107. ssssssseeeeeeeeeeennennner 4 1 Security Access Levels ssssesseeeeeeeene 4 1 4 1 USer eee ni at eee 4 1 Administrator 5 5 eei nmn reti abere 4 2 i Te s geom 4 2 Setting Up Server Groups and Servers 4 4 Adding a Server Group to the Server Group List 4 4 Adding a Server to the Servers List 4 5 Loading a Configuration from Disk sese 4 5 Setting and Modifying User Preferences 4 7 Alert Preferences id costes iet des eO t tee reeset 4 8 Alarm Setup ccnn n e eer dee eed t ns 4 9 4 9 Remove Pager 4 11 Adda Eax teme ase estates 4 11 Remove a Fax inne ncn 4 12 Add Email 4 13 Remove Emall iet peint 4 14 Add an Application to Launch 4 14 Remove an Application to Launch 4 15 Communication eee ced Eee edo eges 4 16 Event Editor SIT 4 17 Setting and Modifying Controller Options 4 19 Mylex PCI RAID Controllers see 4 19 Mylex External RAID Controllers
108. station s location when this event arrived Manual No 771961 3 5 Navigating Global Array Manager Client Menubar and Menus GAM Client contains a menubar Figure 3 2 in the Global Array Manager window File Menu Open Configuration Ctrl 0 Save Configuration Ctrl S Clear Configuration Exit Ctrl Figure 3 3 File Menu Global Array Manager Client s File menu Figure 3 3 contains the following options Open Configuration Ctrl O Loads a configuration from disk and saves it to the controller See Loading a Configuration from Disk on page 4 5 Save Configuration Ctrl S Saves a configuration file to a new filename disk and or directory Clear Configuration Removes configuration information for the selected controller AN Caution Although there are confirmation checkpoints and warnings following selection of this option remember that all existing configuration and file data on all drives connected to the controller will be deleted Exit Ctrl Q Exits the Global Array Manager Client 3 6 GAM Client v2 15 User s Manual Startup amp Navigation View Menu w Global Status View Controller View Statistics View Lag Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Error T able Figure 3 4 Views Menu Global Array Manager Client s View menu Figure 3 4 contains the following options
109. stency check or a rebuild has finished for example or a physical drive has been put on standby 388 Controller is dead System is disconnecting from this controller 391 Controller is gone System is disconnecting from this controller 395 Controller is gone System is disconnecting from this controller 398 Controller is gone System is disconnecting from this controller Serious Level 1 12 A hard disk has failed 134 logical drive has been made offline 156 data blocks found Possible data loss 256 Fan failure Manual No 771961 Errors Level 2 258 272 274 288 291 304 517 Fan failure Power supply failure Power supply failure Over temperature Temperature is above 70 degrees Celsius Over temperature StorageWorks enclosure reported failure state Lost connection to server or server is down Errors Level 2 9 10 11 18 131 132 135 141 142 143 147 152 385 Rebuild stopped with error Rebuild stopped with error New device failed Rebuild stopped because logical drive failed Expand Capacity Stopped with error Consistency check on logical drive error Consistency check on logical drive failed A logical drive is critical Rebuild stopped with error Rebuild stopped with error New device failed Rebuild stopped because logical drive failed Logical drive initialization failed Expand Capacity stopped with error Write back error Warnings Level 3 3 Ha
110. t s New In GAM Version 2 15 Global Array Manager Version 2 15 contains new features enhancements and modifications not available in earlier versions of Global Array Manager Support for Mylex External RAID Controllers In addition to support for the DAC960SX External SCSI RAID Controller GAM Version 2 15 adds full support including controller options for the DAC960SF External Fibre Channel RAID Controller Newer External RAID Controllers such as the DAC960FL are also now supported Support for Disk Array Controllers Using PCI Firmware 4 06 Version 2 15 of GAM supports Mylex PCI Based Disk Array Controllers which run Mylex PCI Firmware up to and including Version 4 06 Examples of newer Mylex PCI Based controllers include the AcceleRAID 200 0 AcceleRAID 250 DACPTL 1 and AcceleRAID 150 DACPRL 1 Support for Disk Array Controllers Using PCI Firmware 5 06 Version 2 15 of GAM supports Mylex PCI Based Disk Array Controllers which run Mylex PCI Firmware Version 5 06 At present this includes the new Mylex high performance eXtremeRAID controller DAC1164P Troubleshooting Using the Log Information Viewer Version 2 15 of GAM allows you to obtain additional information about events and logged messages by opening an event information window This window displays a description of the target event its probable causes and a recommended course of action Performance Analysis In addition to enhanced Statistics displays
111. t Preferences Alarm Setup Communication Event Editor B Pager 555 1234 Modem setup string Hangup strit AT amp F amp CTRD2LT ATH anl Figure 4 10 Settings Dialog Box Alarm Setup The top half of the Alarm Setup dialog box lists the types of alarms that can be used Pager Fax Email Launch Application The lower half of the Alarm Setup dialog box lists the currently defined destinations recipients applications for the alarm type selected in the upper window Figure 4 10 Add a Pager 1 Select the Pager alarm type in the upper window 2 Click Add The Pager setup box is displayed as shown in Figure 4 11 Manual No 771961 4 9 Setting and Modifying User Preferences Enabled Modem Setup String amp F amp C1 amp D2L1 r Phone Prefix fatoT Number 5551 234 Suffix Delay I 1 Modem Hangup String ATHO m Pager Type Numeric Alphanumeric Advanced Test Cancel Figure 4 11 Pager Setup Dialog Box 3 In the Pager box Enable or disable this Pager entry using the Enabled check box Enter the Modem Setup String or keep the default Enter a Pager Prefix or keep the default Enter the phone number of someone who will receive a page Enter a Pager Suffix if needed Enter a Pager Delay interval The value of each comma is second Enter the Modem Hangup String or keep the default Select the appropriate button for
112. ter use 2 Click Close to close the Error Table 5 16 GAM Client v2 15 User s Manual Monitoring Displaying Logical Drive Information The icons on the right side of the Controller View window represent the logical drives also known as logical units or system drives created by the controller out of the available physical drives Double click a logical drive icon to display information about a particular logical drive Logical Drive 0 Information 2f x RAID Level 5 Fault Tolerant Yes Optimized for Speed Yes Optimized for Capacity Yes Logical Size 256 MB Physical Size 320 MB Stripe Size 64KB Cache Line Size 8KB Write Cache Disabled Status OnLine Used Array Capacity AO Used 320 MB 2 2 Total 10240 MB Used Capacity L Unused Capacity Consistency Check Enable Cache H Close Figure 5 16 Logical Drive Information for a RAID Controller Logical Drive Information Figure 5 16 displays the following about the currently selected logical drive The logical drive number in the window s titlebar The RAID level at which the logical drive is configured Whether the logical drive s configuration is optimized for speed optimized for capacity and fault tolerant Yes No The logical and physical size of the logical drive The stripe size and cache line size in use by the logical drive Whether write back cache is enabled or disabled The operational status
113. tion Viewer An event can be any of the following Server attach and detach Guest User and Administrator Error or warning condition in a RAID subsystem such as a power fan or drive failure Any administrative activity taking a drive off line killing or rebuilding a drive Note It is recommended that the Global Array Manager Client be kept active continuously as a minimized Windows application Manual No 771961 5 1 Event Monitoring Opening the Log Information Viewer The Log Information Viewer is opened when Global Array Manager Client is started and one or more controllers are detected as connected to the server s The viewer displays the contents of GAM2CL LOG an ASCII text file This file contains a chronological log of all the events that occur while this session of the Global Array Manager Client is executing GAM2CL LOG is the default name It may be changed in the INI file Should you need to open the Log Information Viewer manually do so as shown in Figure 5 1 v Global Status View Controller View Statistics View Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Error Table Figure 5 1 Select Log Information Viewer Log Information Viewer _ 3 EventID Severity Source Source Time Device Address Description Sea Fri Sep 26 12 14 431 4logdrv 1 System drive type changed Fri Sep 26 12 14 Fri Sep 26
114. to open 3 Click Open 5 32 GAM Client v2 15 User s Manual Monitoring The data generated by your analysis strings can be captured to a file This file can be opened later for examination or analysis To capture data to a file 1 Click Capture Data A Capture Data dialog box is displayed Figure 5 30 Capture Data 21x File Name pertdata Browse Capture Type Save Butter Start Capture tees Figure 5 30 Capture Data to a File 2 With Start Capture selected type a filename for the data file to be saved or click Browse to find an existing data file and append to it 3 Click OK Data defined by your analysis strings will be generated You can see the data as a line graph on the History page Data will be collected until you click the Stop Capture button You may wish to save the contents of the data buffer to a file for later examination To save the data buffer to a file 1 Click Capture Data 2 Select Save Buffer and type a filename for the data file to be saved or click Browse to find an existing data file and append the buffer to it 3 Click OK Manual No 771961 5 33 Performance Monitoring To display previously saved data 1 Click Display Data A display Data dialog box opens Figure 5 31 Display Data Es Data Source f204 32 130 200 Browse perfdata pat Figure 5 31 Display Data 2 Select a data file to display or click Browse to locate a data
115. tor the progress by choosing the Expand Capacity Status option Error Table Displays a table of bad block and request sense data generated as a result of finding areas of damage or data unavailability on a storage device Data for all storage devices on the selected controller are presented in the same tables 3 8 GAM Client v2 15 User s Manual Startup amp Navigation Administration Menu Administration Sign On Define Server Groups Select Curent Server Group Cte Select Current Controller Ctrl C Raid Assist Initialize Logical Drives Display Controller Information Controller Options Intelligent BBU Scan Devices Advanced Functions Settings Figure 3 5 Administration Menu Global Array Manager Client s Administration menu Figure 3 5 contains the following options Sign On Enables use of Global Array Manager s configuration and administration functions to Administrators gamroot password Enables only monitoring functions to Users Define Server Groups Sets up server groups and individual server names or IP addresses within each group Select Current Server Group Ctrl G Displays the current contents of the server selection box located in the Global Array Manager window Functions in the same way as directly selecting the server selection box Select Current Controller Ctrl C Displays the current contents of the controller select
116. trollers targets and operations to monitor Past and present data can be viewed as a line graph in a History window Settings can be saved and opened and performance data can be captured saved and displayed 5 18 GAM Client v2 15 User s Manual Monitoring Statistics View Open the Statistics View as shown in Figure 5 17 v Global Status View Controller View 5 iew v Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Error Table Figure 5 17 Select Statistics View Settings When you open Statistics View the Settings page is displayed Here you will define the controllers channels and target physical devices or logical drives to include for statistical analysis You select an operation to analyze define a color and line segment to differentiate this analysis from others used for comparison and optionally save your settings and capture data to a file Figure 5 18 shows the Settings page Manual No 771961 5 19 Performance Monitoring Statistics 204 32 130 200 x Settings Line Graph Pie Graph Bar Graph Device Selection Device type Controller Channel Target E Physical Logical All All 0 0 1 DAC960PD 1 2 4 Operation Reads 7 Et Chr 700 2 44 Line Device CHO TatO T at2 T at4 Reads TEES il New
117. tuitive wizard like utility in the Global Array Manager Client component that simplifies the process of setting up or reconfiguring a disk array Just answer a few brief questions and RAID Assist automatically does the rest Use Manual Configuration for more control over drive group setup or individual configuration parameters Monitoring Functions The Global Array Manager Server component collects and disseminates information on disk array or HBA subsystem status and resource utilization The Global Array Manager Client component organizes this information through an intuitive graphical display Errors and events are recorded in a log and if a problem is serious enough to warrant immediate attention operators can be alerted via popup windows pagers fax or email if so desired Maintenance Functions The Global Array Manager Client manages or performs maintenance on individual disk arrays and drives with the appropriate authentication again by means of the graphical user interface This includes removing physical devices from operation in a functioning disk array also known as killing or off lining a drive rebuilding drives selecting hot spares and initiating a check of consistency or parity information on arrays that are configured to support redundancy The Global Array Manager Server executes the management instructions specified by the Global Array Manager Client 1 2 GAM Client v2 15 User s Manual Introduction Wha
118. ver User can alter parameters of anything that is not controller or drive related and also monitor the status of any selected controller and RAID Manual No 771961 4 1 Signing On to a Server subsystem but has no administrative capability The User cannot set up or modify configurations kill drives rebuild drives or change their on line status In essence Users can look but they can t touch Administrator Individuals with Administrator security access have the capabilities of Guests and Users plus the ability to manipulate controllers and RAID subsystems These additional abilities include configuration drive kill drive rebuild and drive state changes An Administrator initially signs on as gamroot and secures his or her access with a password Under Windows NT the Global Array Manager uses security features built into Windows NT Signing On To gain access capabilities beyond Guest level you must sign on to a server If you double click a server from the Global Status View window when you are not already signed on then click on any option that requires Administrator rights the Sign On dialog box appears automatically Figure 4 1 Sign On RES Server 1929 10 55 Username gamroot Password Figure 4 1 Sign On Dialog Box 4 2 GAM Client v2 15 User s Manual Configuration Open Sign On at any time as shown in Figure 4 2 Sign On Define Server Groups Select Curre
119. vide only minimal input and allow RAID Assist to set up an optimal configuration automatically or Click the Assisted Configuration button if you want RAID Assist to lead you step by step through the configuration or Click the Manual Configuration button if you want full control over your configuration setup or Click Cancel if you want to exit RAID Assist without any changes Automatic Configuration Automatic Configuration provides three options New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any 4 30 GAM Client v2 15 User s Manual Configuration Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on this controller and unconfigured drive space must remain Expand Array Restripes data in your array across additional unconfigured drives to expand the capacity of the array Open New Configuration for example as shown in Figure 4 30 Automatic Configuration Figure 4 30 Select New Configuration Manual No 771961 4 31 Running RAID Assist Automatic Configuration N ew Configuration 204 32 130 202 Controller 2 1 Weleome 2Finish RAID Assist has completed the configuration You can view details of the configuration by clicking Details button If you are satisfied with the configuration as defined below click the Ap
120. well Click Close to close the Rebuild Status box at any time 5 38 GAM Client v2 15 User s Manual Monitoring Consistency Check Status If a consistency check process is currently underway open the Consistency Check Status box as shown in Figure 5 37 to monitor the progress of or cancel the process v Global Status View Controller View Statistics View Log Information Viewer Initialize Status Rebuild Status E Us Expand Capacity Status Error Table Figure 5 37 Select Consistency Check Status L2 x Consistency Check Status Controller 3 Current Logical Drive 0 28 Completed Figure 5 38 Consistency Check Status Box The Consistency Check Status box Figure 5 38 displays the progress of a logical drive consistency check Click Cancel to stop the consistency check You may need to check the Views menu to see if Consistency Check Status is still enabled If so you may need to cancel other consistency checks as well Click Close to close the Consistency Check Status box at any time Manual No 771961 5 39 Process Status Monitoring Expand Capacity Status If an expand array also called expand capacity process is currently underway open the Expand Capacity Status box as shown in Figure 5 39 to monitor the progress of this process Expand Capacity Figure 5 39 Select Expand Capacity Status Expand Capacity Status
121. y from jurisdiction to jurisdiction Information in this publication is subject to change without notice and does not represent a commitment on the part of Mylex Corporation Changes may be made periodically to the information herein these changes will be incorporated in new editions of the publication Mylex Corporation reserves the right to make improvements and or changes at any time in the product s and or program s described in this publication It is possible that this publication may contain reference to or information about Mylex Corporation products machines and programs programming or services that are not announced in your country Such references or information must not be construed to mean that Mylex Corporation intends to announce provide or make available such Mylex products programming or services in your jurisdiction About This Manual This installation guide covers the steps involved to install and use the client component of Mylex Corporation s Global Array Manager Version 2 15 For information on installing and running the server component of Global Array Manager version 2 20 consult the Disk Array Controller Software Kit Installation Guide and User Manual Mylex Part Number 771929 For information on defining and setting RAID Redundant Array of Independent Disks levels and the configuration of the array as a DOS boot device consult the Disk Array Controller Configuration Utilities Installation Guide and

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