CRO-5500 Redundant RAID Controller Kit
Contents
1. a oo nenn num mn un Controller Name LEFT RIGHT Howe ee e nennen Disk Channel ID 6 7 22 on A nun aa ae m e ma e e a em ee nennen Host I O Channel 1 10 A Hine Ei a A See Sse Sees Se saS Active RAID Set 4567 0123 Numbers un Last Msg Sent Heartbeat Count 45 Ch 1 Heartbeat Count 45 ch 1 er rn re er er rn ar re er rn u Hoe ee ee ee m M M M M e a Status Bind Successfully Completed 07 29 96 15 26 00 Mh ee ne ee ne a a a rr ee ee CTRL Z EXIT 16 CRD 5500 Redundant RAID Controller Kit CRD 5500 19 Verify the following A The STATUS indicates that the bind was successfully completed B The disk channel IDs and host I O channels are separate and distinct for each controller C Active RAID set numbers are not duplicated between the two controllers D Heartbeat messages are being sent and received between the two controllers This concludes the configuration procedure for redundant controller mode operation 8 Restart After Switchover NOTE To avoid disrupting SCSI bus activity when replacing a failed CRD 5500 unit in a redundant controller configuration both units MUST use external termination for both the host and disk channels 1 Pause or stop all host I O activity to the CRD 5500 redundant controller subsystem 22. 12 Verify that all controller parameters are correct on both units by checking each sub menu choice under Setup Parameters i e Host Parameters System Parameters Host LUN Mapping Disk Parameters Channel Settings and Redundant Controller Parameters 13 Go to the Redundant Controller Information screen Verify that the two CRD 5500 controllers have successfully bound Ensure that all RAID sets are active on the host channels of the correct controller in accordance with the Host LUN Mapping and Redundant Controller Parameters settings on both controllers i 14 Resume host I O activity to the CRD 5500 redundant controller subsystem CRD 5500 Redundant RAID Controller Kit CRD 5500 This page left blank intentionally CRD 5500 Redundant RAID Controller Kit 19
3. on Both Controllers NARRAR EA ER on Both Controllers CRD 5500 B RCC Cable CRD 5500 A Drive Channels MN Take SCSI ID 7 mit Disk Channels Connect to Same Slot Number on Each Controller Drive Channels Take SCS ID 6 amp i Q Oe Oe iji ADA li 8 8 E E Sa e E E EA 99 SCSIID 0 1 2 3 Maximum of 6 Disk Drives Per Channel Figure 10 Multiple host cabling diagram example 5 Table 6 Configuration for Multiple Host System example 5 eontortiost channel sos stas CC A ee e eN e a e COS ANN PA COS IA TE CO AN DE Passive Active Passive Active CRD 5500 Redundant RAID Controller Kit 11 CRD 5500 7 Configuring the Redundant Controller Mode After setting the hardware up as described above the two controllers can be powered on After running self test they will automatically attempt to bind themselves into a redundant controller set The first attempt will normally fail because various setup parameters first need to be configured Note The following screens depict a configuration example for one controller in a redundant pair Unless otherwise directed you must perform each step on the other controller as well 1 Goto the MAIN MENU and select Setup Parameters Right Raid Unit Monitor Utility 07 29 96 MAIN MENU 15 32 48 RAID Set Information Setup Parameters Host Parameters System Parameters Host LUN Mapping Disk Pa
4. Channel 0 Term Host Channel 1 Takes Same SCSI ID External Terminator External Terminator Takes Same SCSI ID on Both Controllers SE Ns on Both Controllers CRD 5500 RCC Cable CRD 5500 B Disk Channels Connect to Same Slot Number on Each Controller Drive Channels Take SCSI ID 6 A Drive Channels pil Take SCSI ID 7 Q Cue O Po CE Q EIA Q Cane Q Oe SCSIID 0 1 2 3 Maximum of 6 Disk Drives Per Channel Figure 6 Multiple host cabling diagram example 1 Table 2 Configuration for Multiple Host System example 1 Teontroertiost channel seso Status C T T C e C A PA e CRD 5500 Redundant RAID Controller Kit 7 CRD 5500 In the configuration diagrammed in Figure 7 both CRD 5500 controllers have four host channels Host computer 0 is connected to host channels 0 and 1 on both controllers and host computer 1 is connected to host channels 2 and 3 on both controllers This configuration offers greater throughput than the one shown in Figure 6 By using the host channel status settings listed in Table 3 and by using host LUN mapping to map RAID sets to particular host channels you may isolate I O activity for host computer O on controller A and I O activity for host computer 1 on controller B while still benefiting from redundancy Host Host f T External Terminators External Terminators VF ESS CRD 5500 RCC Cable CRD 5500 A B Drive Channels IN Take SCSI ID 7 jiii Disk Chan
5. of 6 Disk Drives Per Channel Figure 5 Single host cabling diagram example 2 One host SCSI bus runs to host channel 0 on controller A then to host channel 0 on controller B The other host SCSI bus runs to host channel 1 on controller A then to host channel 1 on controller B Both hosts are then terminated with external terminators the other end of each bus is terminated at the host adapter 6 CRD 5500 Redundant RAID Controller Kit CRD 5500 6 Multiple Host Configuration Examples Note These examples are intended to illustrate the general principles of configuring a redundant controller system and should not be construed to imply that they are the preferred or recommended methods There are many ways to configure such a redundant controller system For instance many users will wish to run disk channel cables from one controller to the other and then to the disk drives In the configuration diagrammed in Figure 6 both CRD 5500 controllers have two host channels Host computer 0 is connected to host channel 0 on both controllers and host computer 1 is connected to host channel 1 on both controllers By using the host channel status settings listed in Table 2 and by using host LUN mapping to map RAID sets to particular host channels you may isolate I O activity for host computer 0 on controller A and I O activity for host computer 1 on controller B while still benefiting from redundancy Host Host 0 1 Host
6. the 5540 fast wide single ended module For the 5560 fast wide differential module termination cannot be selected via the utility menu it will always show NA and must be supplied via an external differential terminator CRD 5500 Redundant RAID Controller Kit 13 CRD 5500 7 Select Setup Parameters Right Raid Unit Monitor Utility 07 29 96 MAIN MENU 15 44 02 RAID Set Information Setup Parameters Host Parameters System Parameters Host LUN Mapping Disk Parameters Channel Settings Rdnt Ctrixr Parameters UP ARROW CURSOR UP DOWN ARROW CURSOR DOWN ENTER SELECT CTRL Z EXIT 8 Select Host Parameters Right Raid Unit Monitor Utility 07 29 96 HOST PARAMETERS 15 51 17 horno mono beeen Parameter Channel 0 Channel 1 70 Hon SCSI ID 0 1 Tag Queuing ON ON Sync Mode ON ON Sync Rate 20 MB SEC 20 MB SEC Bus Width 16 Bit 16 Bit Termination FULL FULL o ARROW KEYS MOVE CURSOR ENTER SELECT CTRL Z EXIT NOTE The controller will not let you configure a passive host module 9 Configure each active host module as required Each host channel configuration must dovetail with its counterpart on the other controller When two controllers boot up and attempt to form a redundant pair the first controller to boot up will identify its active host channels and instruct the other controller to configure its counterpart host channels to ma
7. MAN 005500 001 Rev 1 0 October 11 1996 CRD 5500 Redundant RAID Controller Kit CMD Technology Inc 1 Vanderbilt Irvine California 92718 714 454 0800 Trademarks and Copyright CMD CMD Technology and CRD 5500 are trademarks of CMD Technology Inc All other product and company names are trademarks or registered trademarks of other manufacturers Copyright CMD Technology Inc 1996 All rights reserved CMD reserves the right to make changes to this manual and the equipment described in this manual without notice CMD has made all reasonable efforts to ensure that the information in this manual is accurate and complete CMD will not be liable however for any technical or editorial errors or omissions made in this manual or for incidental special or consequential damage of whatsoever nature resulting from the furnishing of this manual or operation and performance of equipment in connection with this manual FCC Notice This equipment has been tested and found to comply with the limits of a Class B 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 uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur i
8. Shut down the surviving CRD 5500 controller either from the main menu or the front panel This is especially important to ensure that data in the cache is written to disk IF THIS STEP IS NOT PERFORMED AND THE BATTERY IS REMOVED ALL DATA IN THE CACHE WILL BE LOST Power off both CRD 5500 controllers 4 Remove battery power to both CRD 5500 controllers Ensure that enough time is allowed for the cache memory to fully discharge before continuing NOTE If a failed CRD 5500 is only being power cycled perform steps 1 through 4 Then skip to steps 10 through 14 5 Swap the failed CRD 5500 with another identical controller The unit being swapped in must be configured in exactly the same way same number and type of host and disk channel modules same amount of cache memory etc 6 Re establish the system reconnect terminations battery power connections SCSI cables and the RCC cable 7 Power on both CRD 5500 controllers 8 Reconfigure all controller parameters on the replacement unit for each sub menu choice under Setup Parameters i e Host Parameters System Parameters Host LUN Mapping Disk Parameters Channel Settings and Redundant Controller Parameters 9 Shut down both CRD 5500 controllers either from the main menu or the front panel 10 Power cycle both CRD 5500 controllers 11 Go to the RAID Set Information screen Verify that all RAID sets are visible CRD 5500 Redundant RAID Controller Kit 17 CRD 5500 18
9. edundant RAID Controller Kit CRD 5500 BI hi SSS ss ee ss I TTT 4 Select Setup Parameters Right Raid Unit Monitor Utility 07 29 96 MAIN MENU 15 40 28 RAID Set Information Setup Parameters Host Parameters System Parameters Host LUN Mapping Disk Parameters Channel Settings Rdnt Ctrir Parameters UP ARROW CURSOR UP DOWN ARROW CURSOR DOWN ENTER SELECT CTRL Z EXIT 5 Select Disk Parameters Right Raid Unit Monitor Utility 07 29 96 DISK PARAMETERS 15 43 10 72 0 Channel Termination Module Description 4 Hon oo ee ee 2 Full 16 Bit Single Ended 3 Full 16 Bit Single Ended a ee ee em ARROW KEYS MOVE CURSOR ENTER SELECT CTRL Z EXIT 6 Select the proper SCSI termination for each disk channel A Ifthe relevant controller is at the end of the SCSI bus set termination to FULL unless you are using external terminators on the disk channel buses B If the relevant controller is in the middle of the SCSI bus set termination to OFF If you are using 16 bit wide SCSI modules you may also select PARTIAL termination In which case the module will terminate the upper 8 bits of the bus only Use this option if you are mixing wide and narrow drives on the same bus and the I O module is in between a wide drive and a narrow drive When finished press CTRL Z to return to the MAIN MENU NOTE The above applies only for
10. els Connect to Same Drive Channels Slot Number on Each Controller Drive Channels Take SCSI ID 7 EG LEDS Take SCSI ID 6 Ill 0 3 28 0 8 amp I Pa 2 8 1 8 7 BE U 8 E nO me 8 U ae DARAS SR E zZ 6 8 SCSI ID 0 1 2 3 4 5 Maximum of 6 Disk Drives Per Channel Figure 4 Single host cabling diagram example 1 Table 1 Example Configuration for Single Host System a a ge a ee ptt Passive BO E ECO Passive COCA Active CRD 5500 Redundant RAID Controller Kit 5 CRD 5500 By using Host LUN Mapping you may balance I O traffic between controllers by assigning some of your RAID sets to one host channel and the remainder to the other host channel In the above example RAID sets mapped to host channel 0 would be handled by controller A RAID sets mapped to host channel 1 would be handled by controller B Figure 5 depicts another typical redundant controller configuration This configuration offers greater throughput than the one shown in Figure 4 Host channels SCSI IDs and status for this configuration are the same as in Table 1 Host Hase id External Terminators anne Takes SCSI ID 0O on Both Controllers Y y A Host Channel 1 Takes SCSI ID 1 CRD 5500 RCC Cable CRD 5500 on Both Controllers B Disk Channels Connect to Same Slot Number on Each Controller Drive Channels Take SCSI ID 6 Take SCSI ID 7 Drive Channels l SCSIID O 1 2 3 4 5 Maximum
11. fy any proposed modification or change in configuration with CMD Technical Support or Sales may result in improper operation or damage to the product This page left blank intentionally CRD 5500 Redundant RAID Controller Kit 1 Introduction Two CRD 5500s may be combined to form a fault tolerant system If either controller detects that the other controller is not functioning properly it automatically assumes responsibility for all system I O activity This switch over occurs automatically and virtually instantly If you have two CRD 5500 controllers equipped with multiple host channels you may designate individual host channels as either active or passive providing a means to balance I O activity between controllers 2 Requirements To combine two CRD 5500s as a redundant pair both controllers must be configured as follows 1 Both controllers must be equipped with the 5552 motherboard Controllers with the 5552 motherboard will have a serial number of 5000 or higher 2 Both controllers must be running the same firmware revision B 0 or higher 3 The amount of cache installed in each controller must be the same 4 The amount of cache installed in SIMM slots OA and 1A must equal the amount installed in slots OB and 1B as described in section 3 5 The same number of SCSI I O modules must be installed in each controller 6 The type of V O module installed in each slot on one controller must be the same as that installed in the corre
12. guration diagrammed in Figure 9 also supports a dual ported host environment e g VMS AXP SCSI cluster Windows NT cluster TruCluster for DEC UNIX Because it uses two SCSI cables it has greater throughput than the configuration shown in Figure 8 Host channels SCSI IDs and status for this configuration are shown in Table 5 Host Host E 0 1 Host Channel O Host Channel 1 Takes SCSI ID O Takes SCSI ID 1 on Both Controllers A VEN on Both Controllers 2 Disk Channels Connect to Same l Drive Channels Ill Siot Number on Each Controller Drive Channels Take SCSI ID 7 O O O O Take SCSI ID 6 In Eu BEE T Sd Da E E rT tia Da OS ane OF a ZT EEE as aes Str tr Oe GE 28 ze BE SCSIID 0 1 2 3 4 5 Maximum of 6 Disk Drives Per Channel Figure 9 Multiple host cabling diagram example 4 Table 5 Configuration for Multiple Host System example 4 ontrolertiost Ghannet scsi sum ET EEE HET e A E E wo o o Passive 10 CRD 5500 Redundant RAID Controller Kit CRD 5500 The configuration diagrammed in Figure 10 also supports a dual ported host environment e g VMS AXP SCSI cluster Windows NT cluster TruCluster for DEC UNIX Because it uses four SCSI cables it has greater throughput than the configuration shown in Figure 9 Host channels SCSI IDs and status for this configuration are shown in Table 6 Host Host 0 1 Host Channel 0 HH y Host Channel 1 Takes SCS ID O fe Smal Takes SCSI ID 1
13. in 50 on the other Figure 2 Redundant Controller Communication RCC Cable Installation CRD 5500 Redundant RAID Controller Kit 3 CRD 5500 Figure 3 details assembly information for the RCC cable 50 PIN FEMALE CONNECTOR W STRAIN RELIEF ee 3M P N 50150 B000 SOCKET 3M P N 3448 50150 METAL STRAIN RELIEF 5 LP PIN 1 50 PIN 0 050 ROUND CONNECTOR FLAT CABLE BODDOODOGSOESUDODDDDDODOHDDDOODH OODODOOHODDODDODDOHODBEHEHDOESDD DOO005000000000090500502500500 ODOODODOOBODOGDODDIODHAGSOOGSHODOED ate Er PIN 1 24 NOTE PIN CONNECTION BETWEEN TWO SYSTEMS PIN 1 PIN 50 CMD PART NUMBER CBF 000024 150 PIN 2 PIN 449 PIN 3 a PIN 48 PIN 50 PIN 1 Figure 3 RCC Cable Assembly Information 4 CRD 5500 Redundant RAID Controller Kit CRD 5500 5 Single Host Configuration Examples Note The following examples are intended to illustrate the general principles of configuring a redundant controller system and should not be construed to imply that they are the preferred or recommended method Figure 4 depicts one typical redundant controller configuration with two host channels per controller and a single host Table 1 lists host channels SCSI IDs and status for a typical single host configuration Host Host Channel 0 External Terminator Host Channel 1 Takes SCSI IDO Takes SCSI iD 1 on Both Controllers 1 on Both Controllers CRD 5500 RCC Cable CRD 5500 A B TTT Disk Chann
14. irroring the read write In the event of one CRD 5500 s failure one of the two halves of cache memory in the surviving CRD 5500 takes over the failed unit s read write functions Refer to Figure 1 The SIMMs in these two slots hold another set of cache memory The SIMMs in these two slots hold one set of cache memory Figure 1 Arrangement of SIMM slots on 5552 motherboard Note It is not necessary for the SIMM configuration to be congruent as long as the same amount of memory is installed in each slot pair For example if a 64MB SIMM is in slot OA a 32MB SIMM is in slot OB and a 32MB SIMM is in slot 1B the requirements are met even though slot 1A is empty CMD recommends that SIMMs from the same manufacturer be used in any one CRD 5500 If you are installing only one SIMM in a slot pair use slot OA or slot OB as appropriate CRD 5500 Redundant RAID Controller Kit CRD 5500 4 RCC Cable Connection Warning Do NOT force the RCC cable connectors into the redundant controller connectors Serious damage may result To function in the redundant controller mode the two identically configured CRD 5500 controllers must be connected together with the specially provided redundant controller communication RCC cable The cable must be twisted so that pin 1 on one controller matches pin 50 on the other controller as shown in Figure 2 Twist redundant controller cable so that pin 1 on one controller matches p
15. n a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined 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 e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Any changes or modifications not expressly approved by the manufacturer could void the user s authority to operate the equipment Statement of License Limitations CMD is licensed under patents by EMC which contain claims directly applicable to controllers The purchase of this controller product does not expressly nor impliedly license the purchaser to combine or use the product in combination with any other products or components which combination would be covered by EMC patent claims applicable to RAID subsystems As used herein controllers means a single or multi processor device or group of functionally interrelated devices operable to physically and or logically configure a plurality of physical mass storage devices as one or more independently accessible arrays and to control the communication of data between the array s and host s or client s in a predetermined RAID format or other f
16. nels Connect to Same Slot Number on Each Controller Drive Channels Take SCSI ID 6 Q Cae ae D EEE Paa Q CaS ane SEE 097 SCSI ID 1 2 3 Maximum of 6 Disk Drives Per Channel Figure 7 Multiple host cabling diagram example 2 Table 3 Configuration for Multiple Host System example 2 Sonoiermiestenamne seso staus C Te Trasse A a 8 CRD 5500 Redundant RAID Controller Kit CRD 5500 The configuration diagrammed in Figure 8 supports a dual ported host environment e g VMS AXP SCSI cluster Windows NT cluster TruCluster for DEC UNIX Itrequires only one SCSI cable and one SCSI controller per host system Host channels SCSI IDs and status for this configuration are shown in Table 4 m Host Host 0 1 Host Channel 0 Host Channel 1 Takes SCSI ID 0 Takes SCSI ID 1 on Both Controllers A N on Both Controllers e RCC Cable CRD 5500 CRD 5500 A Drive Channels Take SCSI ID 7 Disk Channels Connect to Same Slot Number on Each Controller Drive Channels Take SCSI ID 6 00 00 00 O O 0 0 0 0 00 90 00 09 00 00 0 0 0 0 0 00 00 0900 0 0 0 0 0 SCSIID O 1 2 3 4 5 Maximum of 6 Disk Drives Per Channel Figure 8 Multiple host cabling diagram example 3 Table 4 Configuration for Multiple Host System example 3 conos Charnet sesim setus wa O O SEE re CRD 5500 Redundant RAID Controller Kit 9 CRD 5500 The confi
17. nt controller set When this is done enter the MAIN MENU on both monitors CRD 5500 Redundant RAID Controller Kit 15 CRD 5500 14 Select Setup Parameters Right Raid Unit Monitor Utility MAIN MENU RAID Set Information Setup Parameters Host Parameters System Parameters Host LUN Mapping Disk Parameters Channel Settings Rdnt Ctrlr Parameters 07 29 96 15 47 01 UP ARROW CURSOR UP DOWN ARROW CURSOR DOWN ENTER SELECT CTRL Z EXIT 15 Select Rdnt Ctrlr Parameters Right Raid Unit Monitor Utility REDUNDANT CONTROLLER PARAMETERS So ooo Parameter Value Homo ewe da Controller Name 1 Host 1 0 Channel 0 Active Host I O Channel 1 Passive o ARROW KEYS MOVE CURSOR ENTER SELECT CTRL Z EXIT 07 29 96 15 47 07 16 Verify the parameters on both monitors If they are in order press CTRL Z to return to the MAIN MENU 17 Select System Information Right Raid Unit Monitor Utility MAIN MENU RAID Set Information Setup Parameters System Information I O Statistics Free Lists Statistics Manufacturing Information Environmental Status I O Process Information Rdnt Ctrlr Information 07 29 96 15 47 16 UP ARROW CURSOR UP DOWN ARROW CURSOR DOWN ENTER SELECT CTRL Z EXIT 18 Select Rdnt Ctrir Information Right Raid Unit Monitor Utility 07 29 96 REDUNDANT CONTROLLER INFORMATION 15 48 20 pm we ee mw eee m M
18. ormats RAID subsystems means a storage subsystem including one or more arrays of physical mass storage devices and one or more controllers associated therewith Declaration of Conformity CMD Technology Inc declares that the equipment described in this document is in conformance with the requirements of the European Council Directives listed below 89 336 EEC EMC Directive 93 68 EEC EMC Directive On the approximation of the laws of Member States relating to Electromagnetic Compatibility This declaration is based upon compliance of the product to the following standards EN 55022 CISPR 22B RF Emissions Control EN 50082 1 IEC 801 Immunity to Electromagnetic Disturbances Product Description RAID SCSI to SCSI Interface Model CRD 5500 Ce Manufacturer CMD Technology Inc 1 Vanderbilt Irvine California 92718 USA Warranty CMD Technology warrants this product to be free of defects in materials and or workmanship for a period of 3 years from the date of purchase If the product proves to be defective within the warranty period CMD Technology will either repair or replace it This warranty covers defects incurred in normal use only Defects malfunctions or failures resulting from accidents misuse or mishandling are not covered In the event that this product must be repaired or replaced please contact CMD for an RMA number Note CMD has tested and certified this product in the configuration as delivered Failure to veri
19. rameters Channel Settings Rdnt Ctrlr Parameters UP ARROW CURSOR UP DOWN ARROW CURSOR DOWN ENTER SELECT CTRL Z EXIT 2 Select Rdnt Ctrlr Parameters Redundant Controller Parameters The following screen will appear Right Raid Unit Monitor Utility 07 29 96 REDUNDANT CONTROLLER PARAMETERS 15 39 26 toon ee ee Ho ne e Parameter Value Hemme eH ee Controller Name 1 Host I O Channel 0 Active Host I O Channel 1 Passive ARROW KEYS MOVE CURSOR ENTER SELECT CTRL Z EXIT 3 Perform the following actions A Enter a name or number for each controller This name will be used in other screens to identify the controller It is a good idea to select a descriptive name to help you distinguish between the controllers Names reflecting the physical location of the controller such as Top Bottom Left or Right may be helpful B Set the status for each of the host I O channels When you restart the controllers to complete the configuration the host channel status settings on the second controller to finish booting up will automatically be the opposite of the settings on the first controller In other words if the first controller boots up with host channel 0 as active and host channel 1 as passive then the second controller will automatically set its host channel O as passive and host channel as active When finished press CTRL Z to return to the MAIN MENU 12 CRD 5500 R
20. reen if you wish to start with a blank slate Then match the redundancy groups that you wish this host channel to handle to a logical unit number LUN This is the LUN that the host will use to address the redundancy group A dash indicates that the LUN is not mapped to any redundancy group When you have finished with one active host channel switch to the other controller s Host LUN Mapping screen select an active host channel and assign LUNs to other redundancy groups not mapped to the other controller s active host channel or channels For example you might map redundancy groups 4 through 7 to LUNs 0 through 3 on host channel 1 of the second controller as follows Left Raid Unit Monitor Utility 07 29 96 HOST LUN MAPPING 15 46 22 Channel 1 ee ma om ma mm ee on e o e A nm a e o o o o e e e e a ew ee ea ee i Host LUN Redundancy Group Host LUN Redundancy Group l ooo ape nae ee a ee ee e ee ew pe em ee ee ew we we 00 IDU DWH r r po td a bt PN Ne m 00 N NEXT CH P PREV CH ENTER SELECT C CLEAR D DEFAULT CTRL Z EXIT In this example the host would access redundancy groups 0 through 3 through host channel 0 of the Right Raid controller and redundancy groups 4 through 7 through host channel 1 of the Left Raid controller When finished press CTRL Z to return to the MAIN MENU 13 Restart both controllers The two controllers should automatically bind into a redunda
21. sponding slot on the other controller 7 Each disk must be connected to the same disk channel on each unit 8 Corresponding host modules on each controller must also be connected on the same SCSI host busses 9 The Redundant Controller Communication RCC cable must be connected between the two controllers 10 Each controller must have its own dedicated monitor 11 Each controller should have a battery connected to it At least one of the controllers must have a battery connected to it to protect the cache data in the event of a power failure Note If two CRD 5500s are connected into a redundant controller configuration the maximum number of disk drives that can be supported with a single host is 48 The maximum number of disk drives on a single channel is 6 and the maximum SCSI ID for a disk drive on any drive channel is 5 CRD 5500 Redundant RAID Controller Kit 1 CRD 5500 3 SIMM Installation To utilize the redundant controller capability of a pair of CRD 5500s both units must have the same amount of SIMM cache installed Refer to the CRD 5500 User s Manual for information on purchasing SIMMs Warning Be sure to remove all power including battery power to the controller before installing SIMMs Observe all anti ESD shop practices before you touch a SIMM On the 5552 motherboard slots OA and 1A form one set of cache memory Slots OB and 1B form another set While one set is reading and writing data the other set is m
22. tch those on the first Similarly when the second controller boots up it will copy the configuration information for its active host channels to the other controller When finished press CTRL Z to return to the MAIN MENU 10 Select Setup Parameters Right Raid Unit Monitor Utility 07 29 96 MAIN MENU 15 44 02 RAID Set Information Setup Parameters Host Parameters System Parameters Host LUN Mapping Disk Parameters Channel Settings Rdnt Ctrlr Parameters UP ARROW CURSOR UP DOWN ARROW CURSOR DOWN ENTER SELECT CTRL Z EXIT 14 CRD 5500 Redundant RAID Controller Kit CRD 5500 11 Select Host LUN Mapping Right Raid Unit Monitor Utility 07 29 96 HOST LUN MAPPING 15 46 22 ERA 0 4 ren eee mo Pe eee ee ne pee ne ee en Host LUN Redundancy Group i Host LUN i Redundancy Group e a 00004 4 00 een 0 0 16 1 1 17 2 2 18 3 3 19 4 20 5 21 6 22 7 23 8 24 9 25 10 26 11 27 12 28 13 29 14 30 15 31 mm 2 20 4 rr N NEXT CH P PREV CH ENTER SELECT C CLEAR D DEFAULT CTRL Z EXIT 12 If you have more than one host channel in each controller you may balance I O activity between each controller with the Host LUN Mapping screen Select an active host channel with the N and P keys The controller will not let you set LUN mapping for a passive channel Use the C key to clear the sc
Download Pdf Manuals
Related Search