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DAS-208SA Disk Array

1. AZ Move Cursor ESC Exit Enter Enter Tab Switch to Output Area The brief explanation of the selection item of RAID Parameters menu is listed below 25 DAS 208SA Disk Array User Guide 2 SCSI Params This allows you to edit parameters of the primary SCSI channel 21 Primary SCSI Editing primary SCSI channel s parameters 211 Set SCSI ID Settings 0 14 MULTIPLE Default 0 212 Speed Settings Ultra320 Ultra3 Ultra2 Ultra Fast Default Ultra320 213 Wide Settings ENABLE DISABLE Default ENABLE 214 LunMap LUN to slice mapping 2141 LunO Settings DISABLE Array 1 8 Slice O 7 2142 Lun 1 Settings DISABLE Array 1 8 Slice 0 7 2143 Lun 2 Settings DISABLE Array 1 8 Slice 0 7 2144 Lun 3 Settings DISABLE Array 1 8 Slice 0 7 26 DAS 208SA Disk Array User Guide 2145 Lun 4 Settings DISABLE Array 1 8 Slice 0 7 2146 Lun 5 Settings DISABLE Array 1 8 Slice 0 7 2147 Lun 6 Settings DISABLE Array 1 8 Slice 0 7 2148 Lun 7 Settings DISABLE Array 1 8 Slice 0 7 2149 Lun Settings DISABLE Array 1 8 Slice 0 15 for Lun 8 127 214 QAS Settings ENABLE DISABLE Default ENABLE 22 Secondary SCSI Editing secondary SCSI channel s parameters 221 Set SCSI ID Settings 0 14 MULTIPLE Default 0 222 Speed Settings Ultra320 Ultra3 Ultra2 Ultra Fast Default Ultra320 223 Wide Settings ENABLE DISABLE Default ENABLE 27 DAS 208S
2. 2000 16 63 16 i 3 FAK Info Enable i 4 Company Info 8 WDC P te we 5 Modem Init St H S M 2000 16 63 16 i Enable i 5 WDC WD1200JD 00GBBO 2000 16 63 16 I I I I EEE SE OSE OSE SE SE SE n AZ Move Cursor ESC Exit Enter Enter Tab Switch to Output Area The expansion of the selection item of System Parameters menu is listed below 33 DAS 208SA Disk Array User Guide 4 System Params Password Pager and FAX settings 41 Passwd Info User password setting 411 Passwd Check Settings ENABLE DISABLE Default ENABLE 412 Set Passwd Settings 8 character string 42 Pager Info Set up Pager function 421 Paging Settings ENABLE DISABLE Default DISABLE 422 Pager1 No 4221 Tel No Settings Up to 16 character string 4222 Pin No Settings Up to 16 character string 423 Pager2 No 4231 Tel No Settings Up to 16 character string 4232 Pin No Settings Up to 16 character string 34 DAS 208SA Disk Array User Guide 424 Code 4241 Part 1 Settings Up to 16 character string 4242 Part 2 Settings Up to 16 character string 425 Repeat Settings 5 10 15 and 20 minutes Default 5 426 Interval Settings 5 10 15 20 minutes Default 5 427 Paging Now Settings Yes No Default No 43 FAX Info Set up FAX function 431 FAX Settings ENABLE DISABLE Default DISABLE 432 FAX Class Settings 1 2 Default 1 433 FAX1 No Setti
3. M 2000 16 63 16 Enable 5 WDC WD12 9JD GBB 2000 16 63 16 dE dE dE dE te te te ate ae te AZ Move Cursor ESC Exit Enter Enter Tab Switch to Output Area 53 Step 9 DAS 208SA Disk Array User Guide The controller will start to initialize the RAID sets After initializing the RAID set the subsystem is ready for the host OS to perform high level format 54 DAS 208SA Disk Array User Guide 4 2 Creating RAID Sets and Setup Host Channels The disk array has great flexibility in creating RAID sets Drives of different sizes and manufacturers may be combined in a RAID set Although the smallest drive in the set will limit how much of the other drives capacity can be used The disk array can have as many as 4 RAID sets Each RAID set can be assigned a different RAID level A RAID set may be partitioned into as many as 4 partitions Each partition could be mapped to the LUNs of host channel 1 and or 2 Each host channel will have 8 LUNs maximum for mapping the RAID partitions In the following section we will outline the steps needed to create RAID sets with multiple partitions and then maps them to different host channels For example you want to create a disk array with two RAID sets The first RAID set has two partitions using three drives with RAID level 5 and the second one has only one partition using two drives with RAID level 1 The partitions of the fi
4. DAS 208SA Disk Array User Guide 5 NVRAM Saves the information related to the controller or reboots it 51 Update NVRAM Update the RAID controller s configuration Settings NO YES Default NO 52 Erase NVRAM Erase the RAID controller s configuration Settings NO YES Default NO 53 Restart Reboot the RAID controller Settings NO YES Default NO DAS 208SA Disk Array User Guide L RN 3 4 7 RAID Functions The RAID Functions menu allows you to check the system status See Figure 3 8 RAID Functions Menu Screen Figure 3 8 2 WDC W4D1200JD 00GBBO S M 2000 16 63 16 Main Menu Enable 19 Quick Setup SK 3 WD1200JD 00GBBO 11 RAID Params H S M 2000 16 63 16 i2 SCSI Params Enable RS232 Params 7 WDC WD1200JD GBB ystem Params H S M 2000 16 63 16 RAID Funcs Enable i SK 8 WDC WD1200JD 00GBBO Parity Check H S M 2000 16 63 16 Beeper Enable Stop Modem 5 WDC WD1200JD 00GBBO Add Disk H S M 2000 16 63 16 Remove Disk Enable Statistic SK H MDC WD12 9JD GBB Expand Array H S M 2000 16 63 16 Log Event Enable Update ROM TETTE Cursor ESC Exit Enter Enter Tab Switch to Output Area The expansion of the selection item of RAID Functions menu is listed below 39 DAS 208SA Disk Array User Guide 6 RAID Funcs Utility to check the disk array status 61 Init Parity Force to initialize a level 5 3 30 50 disk array 611
5. Enabling tag queuing will improve the performance of the RAID If your SCSI host adapter has an option of enabling the tag queuing make sure to enable it Press ENTER to Enable 21 Primary SCSI 212 Tag Queuing The 213 Speed options are to be set according to the host 1 SCSI bus Next move to LUN 0 215 Lun Map 2151 Lun 0 Press Enter to select LUN 0 and move to Array 1 2151 LUN 0 21511 Array 1 Select Slice 0 press Enter to complete 21511 Array 1 Slice 0 62 DAS 208SA Disk Array User Guide Remember to save your configurations in 51 Update NVRAM Press Enter and the RAID will begin to initialize the disks Initial 1 2 5 RAID Ready Where 1 2 is the first of the two RAID sets INIT OK RAID Ready Now the RAID is ready for the host OS high level format 63 DAS 208SA Disk Array User Guide 4 5 Spare Drives designation The disk array automatically identifies the drive in the enclosure that is not included by any RAID set as a spare drive 4 6 Setting up Alert Functions There are two alert functions provided by the disk array You could choose to send the warning messages to a fax or to a pager The steps needed to setup the functions are shown below Select the 4 System Params function from the main menu Main Menu 4 System Params Select the 42 Page Info or 43 FAX Info y
6. RS 232 Cable 1 User Manual CD 1 Spare screws 40 If any item is missing or damaged please contact the place of purchase for assistance Retain the shipping container and packing material for reuse e Before you begin to use your DAS 208SA read section 1 4 Note Components of the DAS 208SA to learn more about the major components or your RAID Disk Array DAS 208SA Disk Array User Guide 1 4 Components of the DAS 208SA This section describes the major components of the DAS 208SA including its front panel LED display panel and rear panel Read this section before you start to use your RAID Disk Array Subsystem 1 4 1 The Front Panel Please refer to Figure 1 1 for the front panel of DAS 208SA Disk Array in the following page ENTER Control Buttons LCM Canister Lock Drive Canister 1 4 2 LCD Display Panel and Control Buttons The control panel of the DAS 208SA consists of a LCD display panel and 4 control buttons This is where you will check the configuration and status of the disk array Figure1 2 shows the general information such as RAID status thermograph and fan temperature of the Disk Array Meanwhile control buttons allow you to use Up A and Down V arrow keys to go through the information on the LCM display screen The ENTER button is used to enter the option you have selected and the ESC button can take you back to the previous menu Please refer to Table 1 1 for detailed information of e
7. Termination absorbs electrical signals and prevents those signals from bouncing back along the bus and causing interference The SCSI drive channels of the DAS 208SA have been terminated inside the chassis on the back plane There is no need to terminate the disk drives DAS 208SA Disk Array User Guide 2 1 3 Connecting the DAS 208SA DAS 208SA can be connected to the host computer via 2 Ultra320 SCSI ports 2 1 4 Host Bus SCSI ID Assignment You may assign any SCSI ID to the host channel The range of SCSI IDs ona Wide SCSI bus starts from 0 to 15 You can use the LCD panel or a terminal to set the host channel ID Refer to Section 3 1 Configuration Methods for more information Be sure to assign an ID that does not conflict with any other devices on the host bus as well as the host adapter 2 1 5 Host Bus Termination The disk array is shipped with host channel buses terminated If the disk array is not the last device on the host bus you must turn off termination from the LCD panel or a terminal 2 1 6 Back Plane The back plane of the DAS 208SA is specifically designed to furnish the stability of voltage and provide the reliability for disk array 2 1 7 Connecting the Power Cord Before you connect the power cords to the power supplies make sure the power supplies have been firmly seated inside the DAS 208SA Disk Array 2 1 8 Uninterruptible Power Supplies To insure the integrity of the data stored on a RAID array we strongly
8. recommend connecting the DAS 208SA Disk Array to an external UPS 12 DAS 208SA Disk Array User Guide 2 2 Disk Drive Installation Any 3 5 Serial ATA hard disk half height 1 2 54cm SCA connector can be installed into the canister of DAS 208SA Figure 2 1 shows the disk drive and canister of DAS 208SA Disk Array Figure 2 1 Disk Drive and Canister 13 DAS 208SA Disk Array User Guide Second use four screws to fasten the drive to the drive canister Please note that you fasten the drive at the right location See Figure 2 2 Figure 2 2 Screws location Screws location DAS 208SA Disk Array provides eight slots that enable you to utilize eight disk drives Insert each slot to the drive canister of Disk Array system will automatically check all available disks 14 DAS 208SA Disk Array User Guide Chapter 3 Configuration FASTORA DAS 208SA can be configured via its LCD panel or via a terminal This chapter will discuss the configuration methods and the detailed information about the operation modes This chapter covers the following topics Configuring Through the LCD Display Panel Configuring Through a Terminal Operation Modes Main Menu 3 1 Configuring Through the LCD Display Panel The LCD Panel consists of a two lines 16 character LCD display two LED indicators four push buttons and a reset button allowing users to configure and monitor the operation of the disk array
9. s attention In this chapter we will describe the diagnostic facilities that are available as well as solutions to common problems This chapter will cover the following topics LEDs During Normal Operation Alarm Signals 7 1 LEDs During Normal Operation During normal operation green POWER lights will be lit up indicating that power is being applied to the drives and that the drives are operational Yellow ACCESS LEDs will go off and on with each drive read or write operation Power supplies have green LEDs that stay on all the time if the power supply is functioning properly the LED will become red if one of the power supplies fails Fan failed red LEDs for the four cooling fans at the rear will light if the fan fails 7 2 Alarm Signals Whenever there is a failed hard disk fan power supply or overheating condition the audio alarm will be triggered Red LEDs will light up indicating the part that has failed The LCD panel will also display a warning message To turn off the alarm signal from the controller enter the configuration mode 6 Raid Func gt 63 Beeper of the controller to disable the beeper 72 DAS 208SA Disk Array User Guide Appendix A RAID Levels Tutorial FASTORA DAS 208SA Disk Array Subsystem supports RAID levels 0 1 3 5 and 0 1 This tutorial will give you a brief look of the RAID Redundant Array of Inexpensive Disks technology This appendix covers the following topics A
10. 1 RAID Fundamentals RAIDO RAID 1 RAID 2 RAID 3 RAID 4 9 9 99 RAID 5 Summary Table A 1 RAID Fundamentals RAID Redundant Array of Inexpensive Disks is a series of storage technologies described in 1987 by three researchers from University of California at Berkeley David Patterson Garth Gibson and Randy Katz RAIDs were conceived to overcome the data reliability problems associated with disk storage subsystems while increasing various performance aspects Here we put a description of how each type of RAID operates plus its strengths and weaknesses An unavoidable drawback to all large groups of disk drives although disk MTBF figures range up to 250 000 hours or five years is a large number of maintenance incidents Because of redundancy schemes these incidents in a RAID do not normally result in any loss of data 73 DAS 208SA Disk Array User Guide or even access to the data Stated another way there will be failures of disks over the lifetime of a large RAID disk subsystem but it is unlikely that there will be data lost or made unavailable The RAID redundancy schemes are capable of regenerating the data from a failed disk drive After a disk has failed it can be replaced by a spare called a hot spare if it is always resident and powered up in the subsystem and the data can then be rebuilt on the replacement disk The overhead associated with the rebuilding process may affect storage th
11. AZ Move Cursor ESC Exit Enter Enter Tab Switch to Output Area The brief explanation of the selection item of RS232 Parameters menu is listed below 30 DAS 208SA Disk Array User Guide 3RS232 Params Password Modem and Terminal port settings 31 MODEM Port Set up MODEM port parameters 311 Baud Rate Settings 2400 4800 9600 14400 19200 28800 38400 57600 115200 Default 115200 312 Stop Bit Settings 1 2 Default 1 313 Data Bit Settings 7 8 Default 8 314 Parity Settings NONE ODD EVEN Default NONE 32 Terminal Port Set up Terminal port parameters 321 Baud Rate Settings 2400 4800 9600 14400 19200 28800 38400 57600 115200 Default 115200 322 Stop Bit Settings 1 2 Default 1 323 Data Bit Settings 7 8 DAS 208SA Disk Array User Guide Default 8 324 Parity Settings NONE ODD EVEN Default NONE 32 DAS 208SA Disk Array User Guide L RN 3 4 5 System Parameters The System Parameters menu allows you to configure the system including password pager and fax settings See Figure 3 6 System Parameters Menu Screen Figure 3 6 i UT EU 2000 16 63 16 i Main Menu Enable 118 Quick Setup i 4 WDC longa te GBB 111 RAID Params C H S M 2000 16 63 16 i SCSI Params Enable i RS232 Params 6 WDC UD1200JD 00GBBO H S M 2000 16 63 16 i System Params Enable 116 3 WDC UD1200JD 00GBBO i 2 Pager Info H S M
12. Array 1 Settings STOP START Default STOP 612 Array 2 Settings STOP START Default STOP 613 Array 3 Settings STOP START Default STOP 614 Array 4 Settings STOP START Default STOP 615 Array 5 Settings STOP START Default STOP 616Array 6 Settings STOP START Default STOP 617 Array 7 Settings STOP START Default STOP 618 Array 8 Settings STOP START Default STOP 62 Parity Check Force to check a level 5 3 30 50 disk 40 DAS 208SA Disk Array User Guide array s parity data 621 Array 1 Settings STOP START Default STOP 622 Array 2 Settings STOP START Default STOP 623 Array 3 Settings STOP START Default STOP 624 Array 4 Settings STOP START Default STOP 625 Array 5 Settings STOP START Default STOP 626 Array 6 Settings STOP START Default STOP 627 Array 7 Settings STOP START Default STOP 628 Array 8 Settings STOP START Default STOP 63 Beeper Setup beeper state 41 DAS 208SA Disk Array User Guide Settings CLEAR ENABLE DISABLE Default ENABLE 64 Stop Modem Force to stop the modem operation Settings NO YES Default NO 65 Add Disk Notify RAID controller to add a disk to system Settings Disk 1 8 Default NONE 66 Remove Disk Notify RAID controller to remove a disk from system Settings Disk 1 8 Default NONE 67 Statistic Display all statistic data on terminal Statistics Company Info FAX Info Pager Info I O Statistic 68 Expa
13. also available on the terminal 3 2 1 Connecting a Terminal Located at the rear of the disk array a RS 232 connector marked as Console can be used to support the local terminal access When connecting a terminal to the disk array make sure you have attached the supplied RS 232cable to the right Console connector Note that you should set up the communication parameters before using this terminal To start up 1 Plug one end of the supplied RS 232 cable to the port marked as Console at the rear of the disk array 2 Connect one end of the RS 232 cable to the COM port of your terminal or PC 3 Run an equivalent program of the terminal 4 Change the setting of the terminal to match the default settings of the 16 DAS 208SA Disk Array User Guide FASTORADAS 208SA namely Baud rate 115 200 Data bit 8 Stop bit 1 Parity None Flow Control None You shall see a pop up screen indicating that the connection has been setup successfully Then you may configure the disk array with your terminal Refer to section 3 2 3 Control Key Definition under ANSI Terminal to learn the control keys for terminal emulation Please note that if you wish to start to configure with your terminal as quickly as possible you may refer to Section 4 1 2 Quick setup via Terminal Configuration 3 2 2 Using PC for Terminal Emulation If you do not have a dedicated terminal you can still use a PC configured as a terminal runn
14. 0JD 00GBBO S M 2000 16 63 16 Enable 8 WDC uD1200JD 00GBBO S M 2000 16 63 16 Enable 5 WDC WD12 9JD GBB 2000 16 63 16 SH SE SE Se SE se te Move Cursor AZSK Tab Switch to Menu Area 49 DAS 208SA Disk Array User Guide D QN Step 6 Press TAB and Enter key a password screen will prompt up See Figure 4 11 Then enter the password Default Password 00000000 Figure 4 11 TPUT WD1200JD GBB S 2000 16 63 16 Enable 4 WDC WD1200JD ww M 2000 16 63 16 Enable 6 WDC WD12 JD ieu M 2000 16 63 16 Enable 3 WDC WD12 JD sr aa M 2000 16 63 16 Enable 8 WDC WD12 JD uw M 2000 16 63 16 Enable 5 WDC WD12 JD GBB S M 2000 16 63 16 Enable bod ON ot Plug function ready Se Se SE SE OSE SE SE HE HEE HE Please input key 50 DAS 208SA Disk Array User Guide L RN Step 7 Highlight Quick Setup and then press Enter Use key A and Z to highlight your desired RAID level and then press Enter to select the option See Figure 4 12 and 4 13 Figure 4 12 SA 2081SA Monitor Utility v0100a betal LCD OUTPUT JJJJJJJJ i A HD12 0JD GBB NU i BERE 2000 16 63 16 Enable 4 WDC uD1200JD 00GBBO RAID Params M 2000 16 63 16 SCSI Params Enable RS232 Params 6 WDC uD1200JD 00GBBO System Params H S M 2000 16 63 16 En
15. 4G Slice 15 MB Key in size in MB 12 Array 2 Configure the RAID set 2 13 Array 3 Configure the RAID set 3 14 Array 4 Configure the RAID set 4 15 Array 5 Configure the RAID set 4 16 Array 6 Configure the RAID set 4 17 Array 7 Configure the RAID set 4 18 Array 8 Configure the RAID set 4 19 Stripe Size Setup the array s stripe size Setting 1024 512 256 128 64 32 16 or 8 sector Default 128 1A Write Buffer Enable disable Write Buffer used Setting ENABLE DISABLE Default ENABLE 1B Performance This allows you to select I O policy Setting Random Sequential Default Sequential 24 DAS 208SA Disk Array User Guide mm RN 3 4 3 SCSI Parameters The SCSI Parameters menu is used to edit parameters of two SCSI host channels of the Disk Array See Figure 3 4 SCSI Parameters Menu Screen Figure 3 4 S A 2081SA Monitor Utility v0100a betal D OUTPUT WD1200JD 00GBBO 2000 16 63 16 Main Menu Enable Quick Setup 4 WDC WD1200JD 8GBB8 RAID Params M 2000 16 63 16 Enable I SCSI Params 6 WDC WD120 JD GBB H S M 2009 16 63 16 122 Secondary SCSI Enable 3 WDC WD12 JD GBB 000 16 63 16 Enable 8 WDC W D1200JD 00GBBO S H 2000 16 63 16 5 MDC W D1200JD 00GBBO M 2000 16 63 16 Enable Enable Edie te dte atte snes MET RN MAREM ER EM E l HSM 2 l
16. 6 63 16 Array Enable Array 8 WDC WD120 9JD GBB Array H S M 2000 16 63 16 Stripe Size Enable Write Buffer 5 WDC WD1200JD 0GBB Performance HS 2009 16 63 16 sr Cursor ESC Exit Enter Enter Tab Switch to Output Area The following is the detailed explanation for each part of RAID Parameters menu 22 DAS 208SA Disk Array User Guide 1 RAID Params Creates RAID sets and partitions 11 Array 1 Configure the RAID set 1 111 Re Config RAID Configure the RAID set again Setting NO YES Default NO 112 RAID Level Select the RAID set s level Setting 0 1 3 5 0 1 30 50 None Default None 113 Disk Number Select the number of disks to construct the RAID set Setting 8 7 6 5 4 3 based on the RAID level 114 Slice Setup each slice s size 1141 Slice 00 MB Key in size in MB 1142 Slice 01 MB Key in size in MB 1143 Slice 02 MB Key in size in MB 1144 Slice 03 MB Key in size in MB 1145 Slice 04 MB Key in size in MB 1146 Slice 05 MB Key in size in MB 1147 Slice 06 MB Key in size in MB 1148 Slice 07 MB Key in size in MB 1149 Slice 08 MB Key in size in MB 114A Slice 09 MB Key in size in MB 23 DAS 208SA Disk Array User Guide 114B Slice 10 MB Key in size in MB 114C Slice 11 MB Key in size in MB 114D Slice 12 MB Key in size in MB 114E Slice 13 MB Key in size in MB 114F Slice 14 MB Key in size in MB 11
17. A Disk Array User Guide 224 Lun Map LUN to slice mapping 2241 Lun 0 Settings DISABLE Array 1 8 Slice 0 7 2242 Lun 1 Settings DISABLE Array 1 8 Slice 0 7 2243 Lun 2 Settings DISABLE Array 1 8 Slice 0 7 2244 Lun 3 Settings DISABLE Array 1 8 Slice 0 7 2245 Lun 4 Settings DISABLE Array 1 8 Slice 0 7 2246 Lun 5 Settings DISABLE Array 1 8 Slice 0 7 2247 Lun 6 Settings DISABLE Array 1 8 Slice 0 7 2248 Lun 7 Settings DISABLE Array 1 8 Slice 0 7 2249 Lun ft Settings DISABLE Array 1 8 Slice 0 15 for Lun 8 127 225 QAS 28 DAS 208SA Disk Array User Guide Settings ENABLE DISABLE Default ENABLE 29 DAS 208SA Disk Array User Guide L RN 3 4 4 RS232 Parameters The RS232 Parameters Menu is used to configure the settings of RS232 port including password modem and terminal port settings See Figure 3 5 RS232 Parameters Menu Screen Figure 3 5 PUT W4D1200JD 00GBBO 2000 16 63 16 Main Menu e Quick Setup WD12068JD 8GBBO RAID Params C H S 2000 16 63 16 e i 1 PAST 616151515 RS232 Params MS 2009 16 63 16 I I I I I I I I I I I I I I I e 116 132 Terminal Port 3 WDC WD1200JD 00GBBO I I I I I I I I I I I I I I I I I 2 SCSI Params 2000 16 63 16 e W4D1200JD 00GBBO 2000 16 63 16 e W4D1200JD 00GBBO 2000 16 63 16 St Sh Se Se Se Se Oe H HE i
18. A menu of configuration options will appear on the display By using the A Up arrow V Down arrow ESC and ENTER buttons users can traverse various menu levels and configure his desired parameters The function of the buttons is descried as follows A Up Arrow To scroll upward through the menu items VW Down Arrow To scroll downward through the menu items Enter To select a menu item open a sub menu and select a value ESC To exit a sub menu and returns to the previous menu 15 DAS 208SA Disk Array User Guide E If you wish to start with the LCD display panel as quickly as Note possible refer to Chapter 4 1 1Quick Setup via LCD Display Panel to configure the disk array 3 2 Configuring Through a Terminal The LCD control panel allows the exploration of all configurable features of the disk array However the frame of the LCD panel only allows a few messages of output In this case a very limited amount of information can be displayed at a given time on the LCD display panel In fact using a terminal to configure your disk array will be exactly the same as using the LCD display to do the configuration Unlike the LCD display that can only show 2 lines of the configuration information a terminal connected via a modem or direct serial interface displays all information pertinent to a particular function on a larger terminal screen In addition the help information which is impractical to be shown on the LCD panel is
19. B to the disk array Drives DRIVE6 and DRIVE7 will be added to array 1 partition 3 that maps to host channel 1 LUN 3 Drive DRIVES will be added to array 2 partition 1 that maps to host channel 2 LUN 1 82 DAS 208SA Disk Array User Guide Expanding Capacity of a New Partition We recommend using the terminal or terminal emulation for the RAID setup However we will use the LCD panel in our examples The terminal emulation will display detailed information on a monitor in a similar way Enter Passwd OXXXXXXX From the Main Menu move to 6 RAID Funcs Main Menu 6 RAID Funcs From 6 RAID Funcs go to 68 Expand Array gt 681 Array 1 gt 6811 Disk Then select Yes to expand your disk 6811 Disk Yes The system will check your disk indicating the process of expanding by percentage When it is finished you will see DONE in the LCD Next move to 1 RAID Params Main Menu 83 DAS 208SA Disk Array User Guide 1 RAID Params Go to 11 Array gt 114 Slice gt 1142 Slice1 as SliceO may have been set Enter the size you want to allocate 1142 Slice1 2000 MB Remember to go to 51 Update NVRAM to save all configurations Then move to 2 SCSI Params Main Menu 2 SCSI Params Go to 21 Primary gt 215 Lun Map gt 2152 Lun1 as LunO may have been set 2221521 Array 1 gt Slice2 as Slice1 may have been set Press E
20. DAS 208SA Disk Array User Guide DAS 208SA Disk Array User Guide For Serial ATA to Ultra320 RAID Subsystem v 1 01b DAS 208SA Disk Array User Guide mm RN The information in this guide may be changed without notice We assume no responsibility for any errors which may appear in this guide Microsoft Windows and Windows logo are trademarks of Microsoft Corporation Copyright 2004 All rights reserved No Part of the contents in this guide may be transmitted or reproduced in any form or by any means without the written permission of the manufacturer Printed in Taiwan The revision date for this guide is Apr 30 2004 Version 1 0 FCC Statement This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates and can radiate radio frequency energy and if not installed and used according to the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which is found by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receivin
21. able 3 WDC WD12 9JD GBB S M 2000 16 63 16 Enable 8 WDC WD12 9JD GBB M 2000 16 63 16 Enable 5 WDC WD12 9JD GBB M 2000 16 63 16 Enable SH OSE SE Se Se GE te AZ Move Cursor ESC Exit Enter Enter Tab Switch to Output Area 51 AZ Move Cursor ESC Exit DAS 208SA Disk Array User Guide Figure 4 13 Enter Enter 87 MDC S M Enable Enable 6 WDC S M Enable 3 WDC S M Enable 8 WDC S M Enable 5 WDC S M Enable W4D1200JD 00GBBO 2000 16 63 16 W4D1200JD 00GBBO 2000 16 63 16 W4D01200JD 00GBBO 2000 16 63 16 4D01200JD 00GBBO 2000 16 63 16 4D01200JD 00GBBO 2000 16 63 16 W4D1200JD 00GBBO 2000 16 63 16 Tab Switch to Output Area Se oth Se te se te te te tes HE 52 DAS 208SA Disk Array User Guide L RN Step 8 X Highlight the number of hard disk you want to use and then press choose Yes to confirm your option See Figure 4 14 Note that you need to restart your disk array to activate the settings Figure 4 14 7 WDC EN 00GBBO S M 2000 16 63 16 Enable i WD1200JD 0OGBBO Quick Setup gt H 2000 16 63 16 i Enable 6 WDC WD1200JD 0OGBBO M 2000 16 63 16 I i i l i Enable I i 3 WDC ET ae 88GBBB S M 2000 16 63 16 Enable 8 WDC WuD1200JD 00GBBO
22. ach status DAS 208SA Disk Array User Guide For the status of each hard disk in Disk Array please refer to Table 1 2 Meanwhile for fans and power error messages alarm and indicators shown on the LCD please refer Table 1 3 Items Table 1 1 Status Description DAS 208SA Disk Array Indicates the model name of the product Installed Memory 128 Mbytes Indicates the capacity of the memory CPU Type 80321 4 Ultra320 Indicates the CPU model and interface Firmware Version v 1 0 Indicates the version of the firmware Serial Number XXXXXXXXXXXXx Indicates the serial number of the RAID controller FAN1 RPM Indicates the speed of Fan 1 FAN2 RPM Indicates the speed of Fan 2 Temp 1 Indicates the temperature of the upper part of the backplane Temp 2 Indicates the temperature of the central part of the backplane Temp 3 Indicates the temperature of the bottom part of the backplane 27227777 Indicates the random display when parity checking z A single z appearing at the right end of the LCD panel eg 111122222 indicates that memory is not enough during read amp write 7 Please note that RPM under 2200 will be considered fan failure replace the fan immediately for better performance DAS 208SA Disk Array User Guide Table 1 2 Hard Disk Status Letter shown on LCD JBOD Disk Offline Disk Rebuilding Disk Removed Spare Di
23. data files if a disk is lost the files are also lost Logically RAID 3 is RAID 0 with added fault tolerance A 3 RAID 1 This version of RAID has been around for years known as mirroring or duplexing The exact same data exists on pairs of disk drives and can be read from either This allows two simultaneous reads per mirrored pair which can double the read transaction rate Write operations which must be done to both disks in the mirrored pair offer no performance advantage and may actually reduce write performance well below that of a single disk Because of its high data reliability and ease of implementation RAID 1 has been used in storing critical data for years Theoretically it is the most expensive fault tolerant technique due to having twice the disks required to store the data and does little to enhance performance A 4 RAID 2 Each disk in the array contributes one bit of the data transfer word e g a 32 bit word requires 32 data disks A solid state memory Error Checking and Correction ECC scheme called Hamming Code provides fault tolerance While Hamming Code requires several additional ECC disks 7 for 32 bits of data 8 for 64 bits of data it is capable of identifying and correcting single disk failures on the fly so throughput is not affected by a disk failure Because all disks are involved in each data file access the transfer rate is very 75 DAS 208SA Disk Array User Guide high wh
24. e firmware and RAID Primary and Secondary Channels DAS 208SA has two host channels primary and secondary to allow you to connect to SCSI devices Fan There are 2 fans located at the rear of the system unit They are designed to provide good airflow and heat dissipation Power The disk array comes with 2 hot swappable power DAS 208SA Disk Array User Guide supplies located at the rear of the subsystem If two of the power supplies are in use and one fails to function an audible alarm will warn you of the power failure Power Cord Slot These are where you connect power cords to power socket 10 DAS 208SA Disk Array User Guide Chapter 2 Hardware Installation This chapter discusses the basic operational installation and the Disk Drive installation The following topics are covered in this chapter Preparing for the Installation Disk Drive Installation Table and Shelf Installation Rack Mount Installation Tower Conversion kit Installation 2 1 Preparing for the Installation If you will be connecting your DAS 208SA Disk Array to the computer using a SCSI adapter installed the adapter s in an available slot in the computer prior to beginning the DAS 208SA installation See your operating system manuals for the configuration procedures for the host bus adapter 2 1 2 Terminating Disk Drive Channels All SCSI buses must be terminated at each end
25. e is also excellent but each individual read is transferred at a single disk s rate 78 DAS 208SA Disk Array User Guide A 8 Summary Table Given Net storage capacity 8GB RAID 1 2 ea 8GB disks RAID 2 11 ea 1GB disks RAID 3 4 and 5 5 ea 2GB disks Disk seek and latency equal Spindle synchronized where needed Numbers in parenthesis indicate how many possible concurrent operations of that type are possible if more than 1 Read Write Transfer rate Transfer rate Parity ECC Transaction Transfer transaction transaction per read per write Disk rate on rate on overhead failure failure Compared to a single 8GB disk t Varies with RAID manufacturer 79 DAS 208SA Disk Array User Guide Appendix B Technical Specifications Model DAS 208SA Disk Array Processor Intel 80321 RAM 128MB ECC up to 1GB Disk Interface Serial ATA Disk Channels 8 operating parallel channels Disk Type Serial ATA 150MBps Host Interface Ultra320 LVD SCSI Host Channels 2 channels Drive Bays 8 bays Environment Monitor Power fan disk and temperature failure Power 300 Watts redundant power supplies with load sharing RAID Level 0 1 10 3 5 30 50 JBOD Multiple RAID Sets Yes Online Capacity Expansion Yes Rebuild Hot Spare Drives Automatically and transparently Drive Hot Swap Yes Drive Insertion or removal Firmware Upgrade Automatic detectio
26. ecking code ECC that was recorded with the data is compared to the ECC generated on reading back the data In RAID 3 a variable number of data disks usually four to eight store blocked 76 DAS 208SA Disk Array User Guide grouped data streams like RAID 0 and a single parity disk records the generated parity for the data blocks A data file that is to be recorded is broken up into blocks and recorded on the data disks with its corresponding parity block s recorded on the data disks Because all disks together transfer each data file the number of data disks multiplies the data transfer rate but the transaction rate is that of a single disk Both read and write operations involve all array disks If a disk fails the data from the good disks can recreate the failed data via generating parity Which disk failed is known from the fact that a disk is not responding or has reported an ECC error A 6 RAID 4 Rather than being broken up into blocks and stored on multiple data disks as a RAID 3 data file is RAID 4 stores the entire data file on a single disk The corresponding location on the parity disk contains the parity for not just the first data file but also for the other unrelated data files stored on the corresponding locations on the other data disks Data transfer rates are the same per data file as single disk transfer rates but multiple as many as there are data disks files may be simultaneously read This
27. g antenna Increase the separation between the equipment and device Connect the equipment to an outlet other than the receiver Consult a dealer or an experienced radio TV technician for assistance CE Mark Warning This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures DAS 208SA Disk Array User Guide Chapter 1 General Information This chapter provides general information of the DAS 208SA Disk Array The following topics are covered in this chapter Introduction Key Features amp Benefits Unpacking Your DAS 208SA Disk Array Components of DAS 208SA Disk Array 1 1 Introduction The DAS 208SA is a Serial ATA to Ultra320 SCSI RAID Redundant Array of Independent Disks Disk Array By implementing sophisticated RAID technology and unique cache algorithm this disk array provides the best protection for the data stored on the array And thanks to today s powerful disk technology one RAID system can now provide the capacity more than 1TB in a large cabinet This offers a wealth of significant advantages that would be attractive to almost any serious PC users Equipped with eight half height 3 5 disk drives in hot swappable canisters the DAS 208SA Disk Array provides mass data capacity and easy installation for the individual customers In addition this RAID system has dual host channels and high availability s
28. generates a high read transaction rate and good aggregate read transfer rates However RAID 4 is seldom implemented because of the problems that ensue in the event of a read error or any write operation A RAID 4 write operation requires two disk revolutions for the following sequence 77 DAS 208SA Disk Array User Guide both the old data file to be overwritten and its corresponding parity file must be read anew parity file is generated from the old data file the parity file and the new data file the new data file and the new parity file are written A read error requires that all disks be used to recreate the failed data file eliminating the multiple concurrent transfer potential A 7 RAID 5 To improve the poor write and read error performance of RAID 4 RAID 5 makes one simple in concept change which has major performance ramifications distributed parity files Instead of having all parity files located on a single disk the parity files are allocated evenly to all disks always with the corresponding data files on other disks This change allows multiple writes to take place as long as they don t collide at a particular disk e g in an eight disk RAID 5 environment as many as four concurrent writes could occur Each write still involves two disk revolutions Read transaction performance is excellent with as many concurrent reads possible as there are disks The aggregate read transfer rat
29. he controller will rebuild the disk array automatically Select the 6 RAID Funcs from main menu Main Menu 6 RAID Funcs Select the 65 Add Disk option press Enter and specify which slot has a newly installed disk drive DAS 208SA Disk Array has all the slots numbered on the front panel HD1 HD8 For example the fourth slot has a new disk System will automatically rebuild the new disk Wait for a while for completion 66 DAS 208SA Disk Array User Guide 4 8 Deleting a RAID Set or a Partition of RAID Set Warning All the data will be lost in the deleted partition Remember to backup your data before the deletion Select the 2 SCSI Params function from main menu Main Menu 2 SCSI Params Select the 21 Primary SCSI function 2 SCSI Params 21 Primary SCSI Select 215 Lun Map then select 2151 Lun 0 gt 21511 Array 1 Press Enter then use arrow key to select Disable All the data will be lost after you choose Disable Backup all your data before proceeding 67 DAS 208SA Disk Array User Guide 21511 Array 1 Disable Next move to 1RAID Params from Main menu Main Menu 1 RAID Params From the Main Menu follow 11 Array 1 gt 111 Re conf RAID Select Yes gt 112 RAID Level 112 RAID NONE Go to 51 Update NVRAM to save all configurations 68 DAS 208SA Disk Array User Guide ase Chapter 5 U
30. ile the transaction rate is that of a single disk If spindle synchronization is not used average latency approaches a full disk revolution RAID 2 s high transfer rate is targeted at very large data record sizes which it can efficiently handle It is seldom seen outside of the special application and supercomputer environments A 5 RAID 3 RAID 3 and RAIDs 4 and 5 also is based on the odd parity principle which is best explained through an example If we assume that there are four synchronized data streams of bits binary digits which can only be zero or one a fifth parity stream would be generated so that the total number of bits at any given instant is always odd E g if the data bits at an instant in time are 0101 the parity generated would be 1 total of three bits on for 0001 p would be 0 1 bit on for 0110 p 1 for 1000 p 0 etc The parity bit is stored with its corresponding data bits so that it can be used for either error detection or error correction In error detection if the total number of bits including parity is even an error occurred which bit position is not known without more information In error correction in which bit line is in error is known parity may be generated for all lines except the one in error recreating the failed bit stream Disks are checked for read failure at the end of each physical block recorded on the surface of the disk called a sector when the error ch
31. ing a terminal emulation program Microsoft Windows and Windows 95 both have built in terminal emulation support Please select ANSI terminal as the terminal type for the terminal emulation You can also use other terminal emulation programs such as KERMIT or VTERM If you cannot see anything on the screen after the session has been established press TAB key followed by Ctrl D key combination to refresh the screen Follow the same steps discussed in section 3 2 1 Connecting a Terminal to connect your PC to the disk array 17 DAS 208SA Disk Array User Guide 3 2 3 Control Key Definition under ANSI Terminal Using ANSI terminal display the following keys are supported A used to scroll upward through the menu items Z used to scroll downward through the menu items ENTER used to select a menu item open a sub menu and select a value ESC used to exit a sub menu and return to the previous menu TAB used to switch between windows The rest of the alphanumeric keys are also supported for password input and when prompted for Yes or No input 3 3 Operation Modes DAS 208SA Disk Array has three operation modes Self Diagnostic Mode Operation Mode and Configuration Mode We will discuss each of the RAID disk array operation mode in the following sections 3 3 1 Self Diagnostic Mode To ensure flawless operation the disk array has a built in self diagnostic utility Self diagnostics will be performed automatically upon power
32. n and rebuilding Via RS 232 port Management Tool LCD panel or RS 232 port Dimensions 40 9 x 8 7 x 43 1 cm LxHxW Weight 18kg w o HDD Input Voltage 100 240V AC 80 DAS 208SA Disk Array User Guide Appendix C On line Capacity Expansion Examples of On line Capacity Expansion Recently we have introduced new firmware feature online RAID capacity expansion It allows the user to add drives to an already created RAID set and dynamically expand capacity over these drives In this appendix we will give some examples and show how this is done Backup Recommendations Before you expand the capacity of your existing RAID set we strongly recommend you have a current backup of data contained on the RAID This feature has only recently been implemented and has not been fully regression tested In order to avoid the loss of crucial data and programs you must have a current backup prior to attempting to expand the capacity of the RAID array 81 DAS 208SA Disk Array User Guide Expanding an Existing RAID Set Figure C 1 On line RAID expansion RAS Array 1 Host Chan 1 Partition 1 LUN 0 Drive 1 Host Chan 1 rive 3 Partition 2 LUN 1 Host Chan 1 Partition 3 LUN 3 Partition 1 LUN 2 E ee Host Chan 2 LUN 0 Host Chan 2 LUN 1 The sample will illustrate how to expand the capacity of the previously configured disk array We will add three hard drives DRIVE6 DRIVE7 and DRIVE8 Each drive adds 2G
33. nal at the same time 2 You will be prompted to enter your password if the password checking feature is enabled Provide the correct password to continue your configuration Unless the disk array is running the self diagnose mode you may select any of the configuration modes at any time The configuration mode of DAS 208SA is completely menu driven for the ease of use And the menu options allow you to fine tune disk array to your specific configuration 19 DAS 208SA Disk Array User Guide i leer 3 4 Main Menu The main menu under Configuration mode consists of the following menus Quick Setup RAID Parameters SCSI Parameters RS 232 Parameters System Parameters NVRAM and RAID Functions We will navigate the main tree in this section Figure 3 1 shows the main menu screen when configuring through a terminal Figure 3 1 OUTPUT HWD12 0JD GBB ER 2000 16 63 16 Main Menu Enable I H WDC uD1200JD 00GBBO RAID Params M 2000 16 63 16 SCSI Params Enable S M 2000 16 63 16 Enable 3 WDC WD12 9JD GBB S M 2090 16 63 16 Enable 8 WDC WD1200JD 0GBBO S M 2000 16 63 16 Enable 5 WDC WD12 9JD GBB 2000 16 63 16 Enable ystem Params R 232 Params 6 WDC WD1200JD 00GBBO M I NURRM R i AID Funcs SE gp SE SE Se Gr te te ae te AZ Move Cursor ESC Exit Enter Enter Tab Switch to O
34. nd Array this is used to expand the disk array 681 Array 1 Select number of disks 682 Array 2 Select number of disks 683 Array 3 Select number of disks 684 Array 4 Select number of disks 685 Array 5 Select number of disks 686 Array 6 Select number of disks 687 Array 7 Select number of disks 42 DAS 208SA Disk Array User Guide E 688 Array 8 Select number of disks 69 Update ROM Update the RAID controller s firmware 43 DAS 208SA Disk Array User Guide Chapter 4 Quick Setup Guide This Chapter describes the steps necessary to configure a disk array for the first time and create a disk array with different configurations Before you configure the disk array we recommend that you create a plan For example what RAID levels you will create and how many partitions you will need etc This chapter covers the following topics Quick Setup Creating RAID Sets and Setup Host Channels Creating RAID Sets with One or Multiple Partitions Setting up Host and Disk Channels Spare Drives designation Setting Up Alert Functions Rebuilding a Failed Disk Drive Deleting a RAID Set or a Partition of RAID Set 4 1 Quick Setup The quick setup is intended as a shortcut so that experienced users can get started as quickly as possible You will learn how to quickly set up yourDAS 208SA from the LCD panel or a terminal in this section 4 1 1 Quick Setup via LCD Panel A default configuration which is ba
35. nd select Yes so that system will be restarted and all configurations will be done and start to work 59 DAS 208SA Disk Array User Guide 53 Restart Yes Next you may configure the partitions on the disk drives by moving to 114 Slice 11 Array 1 114 Slice Select 1141 Slice 0 and enter the size of the partition 1 of the RAID set 1 in MB For example enter 4000 and press Enter You may repeat the same procedure to configure Slice1 to Slice7 1141 SliceO MB 4000 When it is done remember to save all configurations in 51 Update NVRAM so that all settings will be saved Then move to 53 Restart to reboot the system and new configurations will start to work 60 DAS 208SA Disk Array User Guide 4 4 Setting Host and Disk Channels In order to map the RAID sets to each of the host channels follow these steps Select 2 SCSI Params menu item from the main menu Main Menu 2 SCSI Params Press arrow key and move to 21 Primary SCSI 2 SCSI Params 21 Primary SCSI Select 211 Set SCSI ID 21 Primary SCSI 211 Set SCSI ID Move to 211 Set SCSI ID this is the RAID SCSI ID recognized by the host 1 The options are from 0 to 15 and multiple ID The multiple ID is for those controllers that do not support multiple LUNs 61 DAS 208SA Disk Array User Guide Move to 212 Tag Queue menu item Queue the SCSI commands in the controller
36. ngs Up to 16 numeric numbers for FAX number 1 Default None DAS 208SA Disk Array User Guide 434 FAX2 No Settings Up to 16 numeric numbers for FAX number 2 Default None 435 Retry Settings 5 10 15 and 20 times Default 5 436 FAX Now Settings Yes No Default No 44 Company Info Used to enter Log information with the FAX 441 String 1 Settings Up to 16 alphanumeric characters Default None 442 String 2 Settings Up to 16 alphanumeric characters Default None 45 Modem Init St Setting Up to 16 alphanumeric characters Default AT amp DO amp KAEO DAS 208SA Disk Array User Guide DN 3 4 6 NVRAM The NVRAM Menu describes the information of the controller See Figure 3 7 NVRAM Menu Screen Figure 3 7 OUTPUT W4D1200JD 00GBBO 2000 16 63 16 W4D1200JD 00GBBO 2000 16 63 16 VD1200JD 00GBBO ER 2000 16 63 16 Enable 8 WDC uD1200JD 00GBBO zi H S M 2000 16 63 16 2 Erase NVYRAM Enable 3 ShutDown 5 WDC WD12 9JD GBB 4 Restart H S M 2000 16 63 16 Enable H WDC WD12 9JD GBB M 2009 16 63 16 Enable Main Menu 19 Quick Setup i1 RAID Params i2 SCSI Params 13 RS232 Params System Params mm os ON P JE gp SE SE Gr Gr te te ae ae AZ Move Cursor ESC Exit Enter Enter Tab Switch to Output Area The expansion of the selection item of NVRAM menu is listed below 37
37. nter to set the configuration 21521 Array 1 Slice2 Go to 51 Update NVRAM to save all configurations 84 DAS 208SA Disk Array User Guide Appendix D Upgrade Cache Memory The disk array has default 128MB cache memory If you decide to upgrade cache memory it should meet the following specifications To install the cache memory please power off the disk array first Pins 200 Pins DDR 266 SO DIMM 85
38. oftware that ensures 24 hours a day seven days a week of nonstop service capability Throughout this manual the DAS 208SA Disk Array may be referred to as DAS 208SA or simply as Disk Array DAS 208SA Disk Array User Guide 1 2 Key Features and Benefits Advanced LCD display panel Four easy to use push buttons on front panel A up V down ENTER ESC Selectable multiple RAID levels Level 0 1 3 5 10 30 50 JBOD 2 Ultra 320 SCSI channels 8 driver bays 3 5 disk drive Intel 80321 IO processor Up to 1GB cache memory 2U compact tower design for more capacity Cable less design for better reliability Swappable design for faster and easier maintenance 9 9 9 9 9 99 99 9 Multiple alter design for easier management 1 3 Unpacking Your DAS 208SA Before removing your DAS 208SA from the shipping carton you should virtually inspect the physical condition of the container The package of DAS 2088A should appear in good condition when you first received it If any damaged found do not remove the components Contact the place of purchase for further instructions If the shipping container appears to be in good condition unpack it and verify that the DAS 208SA and accessories are all there and in good condition Your DAS 208SA package should contain the following items DAS 208SA Disk Array User Guide Items Quantity DAS 208SA unit 1 Drive Canister 8 Ultra320 SCSI Cable 1 Power Cord 2
39. ou wish to complete 4 System Params 42 Pager Info Or 4 System Params 43 FAX Info 64 DAS 208SA Disk Array User Guide From the 42 Pager Info sub menu there are a few options to setup 421 Paging To enable or disable the paging function 422 Pager 1 No Paging the first number 423 Pager 2 No If the pager 1 number failed page this number 424 Code Address the RAID ID for paging message 425 Repeat Try to page number of times if it cannot get through 426 Interval The time between each page in minutes 427 Paging Now Test the set up of the paging function From the 43 FAX Info sub menu there are a few options to setup 431 FAX To enable or disable the paging function 432 FAX Class Set up the Class of FAX 433 FAX 1 No FAX to the first number 434 FAX 2 No If the FAX 1 number failed fax to this number 435 Retry Try to FAX number of times if it cannot get through 436 FAX Now Test the set up of the FAX function The contents of the FAX are entered in 44 Company Info 441 String 1 Set up the RAID ID for FAX 442 String 2 Set up the RAID ID for FAX In addition the MODEM initialization string is entered in 45 Modem Init String After the setup remember to go back to the Main Menu and select 51 Update NVRAM to save all the settings just made 65 DAS 208SA Disk Array User Guide 4 7 Rebuilding a Failed Disk Drive If you have a spare drive on the system t
40. pgrading Your Firmware In this chapter we ll discuss two different firmware upgrade procedures The embedded firmware of the disk array can be updated through the TERMINAL port using a PC running terminal emulation program However you need another procedure to upgrade the firmware of 8051 Read this chapter carefully if you want to upgrade the latest firmware for yourDAS 208SA Disk Array 5 1 Disk Array Firmware Upgrade The embedded firmware of the disk array can be updated through the TERMINAL port using a PC running terminal emulation program The procedures are as below m Select the 9 Utilities function from main menu m From the 9B Update ROM option you could change the firmware of the disk array m X After the 9B Update ROM option is selected follows the messages as below to update the firmware m X Before downloading the new firmware shutdown the host computer system m Are you ready to download the new firmware Y N Y m Are you sure Y N Y m Begin firmware file transfer now m To abort download restart the RAID system m After you key in the answer select the ASCII file transfer to download the new firmware DAS 208SA Disk Array User Guide m 00001A00 the number will run indicating the file download m File transfer complete m Checksum 0x3827 OK m New firmware transfer complete m Enter Go to update the firmware Go the G must be upper case and o is lowercase m Enter Go to
41. reconfirm Go m Programming m count 0656 m Done m Verifying After the firmware updated DAS 208SA Disk Array will restart automatically and perform the system initialization sequence All the RAID configuration data is still kept 70 DAS 208SA Disk Array User Guide Chapter 6 Array Roaming DAS 208SA Disk Array offers Array Roaming function which allows users to discharge all hard drives from the original SA 2081 SA and insert them in the new DAS 208SA Disk Array This function is necessarily significant when hardware failure happens However please note the following details to make Array Roaming work properly 1 When hardware failure happens to the original DAS 208SA Disk Array please switch off the power and then discharge all 8 bay hard drives 2 Re insert hard drives in the new DAS 208SA Disk Array in the correct order For example the first hard drive in the original disk array should be inserted in the first hard drive bay in the new disk array If you insert the hard drives in the incorrect order all data and information in the hard drives will be damaged and lost 3 Power on the new disk array and wait for several minutes for rebuilding so that disk array can continue operation 71 DAS 208SA Disk Array User Guide Chapter 7 Troubleshooting DAS 208SA Disk Array employs a sophisticated combination of audio and visual signals to warn or inform you of conditions that may require user
42. roughput which is the data access rate that can be serviced by the storage subsystem Depending on the application of the data processing system storage throughput is measured by transaction rate or transfer rate or both Transaction rate is expressed in input output or I O operations per second IOPS or IO s Transfer rate is expressed in millions of bytes transferred per second MBPS or MB s Two other shortcomings of RAID are shared with disk drives in general seek and latency Seek is the time it takes to move the read write R W heads to the location of the data and latency is the time it takes for the specific data to spin around under the R W head Average latency for a disk is 72 a revolution RAID can make latency worse if as in RAID levels 2 and 3 multiple disks store the data and the disks are not rotationally synchronized A disk feature called spindle synchronization can overcome this drawback but not all disks offer the feature A 2 RAID 0 This is not a true RAID as defined by the Berkeley group but rather a colloquial addition to describe the typical disk farm used by midrange and larger computers A technique called striping or spanning increases the 74 DAS 208SA Disk Array User Guide effective data transfer rate by dividing up the data file into smaller blocks and recording them on separate disks Susceptibility to failure is increased because any particular disk stores a portion of many
43. rst RAID set are mapped to the LUNO and LUN1 of the host channel 1 respectively The partition of the second RAID set is mapped to the LUN2 of the host channel 1 In addition the first partition of the first array and that of the second one set are mapped to the LUNO and LUN1 of the host channel 2 respectively The Figure 4 15 shows the configuration 55 DAS 208SA Disk Array User Guide Figure 4 15 Drive 1 Host Chan 1 Array 1 a LUN 0 Array Partition 1 Set 1 Drive 2 Array 1 Host Chan 1 Partition 2 LUN 1 Array 2 Host Chan 1 Partition 1 LUN 2 EE Host Chan 2 LUN 0 Host Chan 2 LUN 1 4 3 Creating RAID Sets with One or Multiple Partitions To create RAID sets follow these steps From the LCD panel use UP and DOWN arrow button keys to select the desired character and press ENTER to move to the next character of the password Follow the previous step to enter all the characters for the password After entering the correct password you will be presented with the Main Menu Alternatively from the terminal press TAB and CTRL D to refresh to screen and press TAB to the left LCD window for the desired selection The right OUTPUT window will display messages from the RAID You can press CTRL D at any time to refresh the screen Key in the password and enter the Main Menu as if using the LCD panel 56 DAS 208SA Disk Array User Guide It is strongly recommended to use the terminal or
44. sed on the number of the installed drivers has been set within the unit for the ease of installation for the first time user 44 DAS 208SA Disk Array User Guide This will allow you to verify the integrity of the disk array immediately The Quick Setup assumes that there is only one partition on the disk array To start up do the following steps Step 1 Press ENTER button to select to the Enter Password screen as shown below in Figure 4 1 Use the Up and Down arrow button to select your desired number for your Password The default value is 00000000 Keep pushing ENTER button for the password You will receive a Main Menu option screen once you enter a correct password See Figure 4 2 Figure 4 1 Enter Passwd OXXXXXXX Figure 4 2 Main Menu 0 Quick Setup Step 2 Press ENTER to confirm your selection This will bring you to set the RAID level of the disk array Use UP and DOWN arrow button to select the RAID level Press SEL to confirm your selection again Figure 4 3 shows the default value of the RAID set RAID 5 45 DAS 208SA Disk Array User Guide of the unit Figure 4 3 0 Quick Setup Level 5 Step 3 Press UP and DOWN arrow buttons to select Yes or No for the level Then press Enter to confirm your selection See Figure 4 4 Figure 4 4 Level 5 Step 4 The controller will start to initialize the RAID sets After ini
45. sk Disk Initializing RAID Set 1 RAID Set 2 RAID Set 3 RAID Set 4 Too many bad sector S iapjlwoln n W gt x eo Table 1 3 Item Error messages shown on LCD LCD show Fan modulett fail Fan1 Failed LCD show Fan module 2 fail Fan2 Failed LCD show power moduleft fail PW1 Malfunction LCD show power module 2 fail PW2 Malfunction Table 1 4 Function FAN status Condition FAN I FAN 2 Temperature Sensor at 30 C 5000 rpm 5000 rpm Temperature Sensor at 31 35 C 5600 rpm 5600 rpm Temperature Sensor at 36 40 C 6200 rpm 6200 rpm Temperature Sensor over 40 C Full Speed 6800 Full Speed 6800 FAN I failed X Full Speed 6800 FAN 2 failed Full Speed 6800 x Any power module failed Full Speed 6800 Full Speed 6800 DAS 208SA Disk Array User Guide 1 4 3 The Rear Panel The rear panel of DAS 208SA is shown below Modem Port Console Port Power Cord Power 1 Slot 1 Primary Secondary Channel Channel FAN 1 FAN 2 Power Cord Power2 Slot 2 Refer to Table 1 4 for detailed description of each part on the rear panel of DAS 208SA Table 1 4 Part Description Modem port This is where you can connect your disk array to a modem Console port This is a RS 232 serial port allowing you to connect to a terminal or a PC You may configure this disk array and upgrade th
46. terminal emulation Note for the RAID setup The set up message on the LCD is shown in the rectangle in the remainder of this manual The terminal emulation will display detailed information on the monitor in a similar way Enter Passwd OXXXXXXX From the Main Menu use A or Z key of the keyboard to move to 1 RAID Params function Main Menu 1 RAID Params Press Enter to select 1 RAID Params 11 Array 1 57 DAS 208SA Disk Array User Guide Select the Re conf RAID and enter 11 Array 1 111 Re Conf RAID Select Yes and press ENTER to configure RAID Set 111 Re Conf RAID Yes Select 112 RAID Level to set RAID 11 Array 1 112 RAID Level Use arrow keys to select the RAID level you want For example you may set RAID level as 0 1 3 5 0 1 30 50 or none 112 RAID Level When RAID levels has been set move to 113 Disk Number to designate the specific drives that RAID levels are going to be used 58 DAS 208SA Disk Array User Guide 11 Array 1 113 Disk Number When it is done remember to save all configurations so that RAID levels will be recorded and start to work Go to 5 NVRAM menu Main Menu 5 NVRAM Select 51 Update NVRAM 5 NVRAM 51 Update NVRAM Use arrow keys select Yes to save the configurations 51 Update NVRAM Yes Then move to 53 Restart a
47. tializing the RAID set the subsystem is ready for the host OS to perform high level format Figure 4 5 shows the result of the Initialization Figure 4 5 Initial 1 5 RAID Ready 46 DAS 208SA Disk Array User Guide 4 1 2 Quick Setup via Terminals or PCs Do the following steps to quickly set up your DAS 208SA via a terminal or PC Step 1 Connect one end of the supplied RS 232 cable to the COM port of your terminal or PC and the other end to Console port Step 2 Plug the multiport cable to the port marked as AUX at the rear of the disk array Step 3 From the windows desktop click on Start Programs Accessories gt Communications gt Hyper Terminal to connect your terminal to the disk array See Figure 4 8 Figure 4 8 RD windows Update imm Programs yes Hy ieee Seana f EIC EC 47 Step 4 DAS 208SA Disk Array User Guide Change the setting of the terminal to match the default settings ofDAS 208SA See Figure 4 9 namely ICOM Properties Baud rate 115 200 Data bit 8 Stop bit 1 Parity None Flow Control None Figure 4 9 48 DAS 208SA Disk Array User Guide L eri Step 5 Press Control D to receive the following RAID Console screen Figure 4 10 Figure 4 10 OUTPUT WD1200JD 00G6BBO 2000 16 63 16 WD1206JD era 2000 16 63 16 Enable 6 WDC uD1200JD 00GBBO S M 2000 16 63 16 Enable 3 WDC uD120
48. up of the disk array or right after you restart the unit In this mode of operation all components will be tested If any problem occurred it will report to the user The Self Diagnostic mode runs three major diagnostics The first diagnostic tests the CPU and supporting the core logic chips internal bus memory SCSI controllers and RS 232 controllers The second diagnostic tests the presence of disks on each individual disk channel It also checks the functionality of the disks found The last diagnostic tests RAID functionality 18 DAS 208SA Disk Array User Guide 3 3 2 Operation Mode Operation mode continuously reports the operating status of the disk array and the drives connected to it During normal operation the LCD display will continuously show the status of all the major components Note that the last character on the second line of the LCD panel with a tiny square moving up and down to indicate that the DAS 208SA Disk Array is in operation 3 3 3 Configuration Mode Configuration mode is used to modify the settings of disk array Users can configure theDAS 208SA either through the LCD panel or via a terminal Note that you are entering the configuration mode whenever you are pressing the SEL button during the Operation Mode If you wish to enter to the configuration mode from a terminal simply use the TAB key to take you to your desired mode 1 You cannot enter the configuration Mode from LCD panel and Termi
49. utput Area 20 DAS 208SA Disk Array User Guide L RN 3 4 1 Quick Setup Quick Setup allows users to quickly setup the RAID level and choose the desired drives The DAS 208SA provides the following RAID levels 5 3 1 0 0 1 30 and 50 Figure 3 2 7 WDC mx 00G6BBO M 2000 16 63 16 Enable i 4 WDC WD12 JD GBB Quick Setup H S M 2000 16 63 16 i H Enable 3 iLevel 6 WDC WD12 JD GBB iLevel H S M 2009 16 63 16 iLevel Enable 5 Level 3 WDC WD12 JD GBB iLevel H S M 2009 16 63 16 i Enable 8 WDC WD12 JD GBB S M 2000 16 63 16 Enable 5 WDC WD12 JD GBB S M 2000 16 63 16 Enable it ik dE th th 3E 3E SE te qp AZ Move Cursor ESC Exit Enter Enter Tab Switch to Output Area Select the raid level that fulfills your demand and then choose Yes to complete 21 DAS 208SA Disk Array User Guide L rece 3 4 2 RAID Parameters RAID Parameters menu allows users to configure RAID settings such as array partitions slice and stripe size See Figure 3 3 for the main screen of RAID Parameters menus Figure 3 3 W4D1200JD 00GBBO 2000 16 63 16 Quick Setup i i ERT Pad S i HS 00 16 63 16 RAID Params Enable SK 6 WDC WD12 0JD GBB Array H S M 2000 16 63 16 Array Enable Array 3 WDC WD12 9JD GBB Array H S M 2009 1

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