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IBM SY33-0193-00 User's Manual

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1. 2324 20 IBM SerialRAID Adapter Maintenance Information MAP 2410 SSA Repair Verification This MAP helps you to verify a repair after a FRU has been exchanged for a new one Attention Unless the system unit needs to be turned off for some other reason do not turn off the system when servicing an SSA link or a unit in which SSA devices are installed Unit power cables and external SSA cables that connect devices to the System can be disconnected while that system is running Before you arrived at this MAP you might have exchanged one or more FRUs for new FRUs Some of those FRUs for example disk drives have Power lights Check whether all those Power lights are on DO ALL THE FRUS YOU HAVE EXCHANGED HAVE THEIR POWER LIGHTS ON WHERE APPLICABLE Yes No 002 Exchange for a new one the FRU whose Power light is off Go to Step 004 003 Go to Step 004 004 From steps 002 and 003 ARE ALL CHECK LIGHTS OFF Yes No 005 Go to the START MAP for the unit in which the device with its Check light on is installed 006 Run concurrent diagnostics to the device that reported the problem Notes 1 Do not run nonconcurrent diagnostics otherwise errors are logged on other systems that share the same loop Step 006 continues MAPs 2410 1 MAP 2410 continued 006 continued 2 If you have jus
2. 3 On the Adapter View select the Physical view The physical view page provides details of the disks connected to this adapter Note selecting the Enclosure List also takes you to the service aids by a slightly different route 4 On the Physical View page select the disk you want to work on This opens the Disk View page on which are the buttons that activate the service aids 30 IBM SerialRAID Adapter Maintenance Information Service Mode A disk drive must be placed in Service Mode before it can be removed from the SSA loop and maintenance performed on it When Service Mode is set The Check light of the disk drive comes on for identification All SSA loop activity through the disk drive stops The disk drive motor stops The Check light if present of the enclosure that contains the selected disk drive comes on The SSA loop is broken and no communication to the disk is possible Only one disk drive at a time can be in Service Mode Before using this service aid you must make the selected disk drive unavailable to the System otherwise an error occurs SSA devices can be maintained concurrently that is they can be removed installed and tested on an SSA loop while the other devices on the loop continue to work normally If a disk drive has its Check light on you can remove that disk drive from the SSA loop without taking any special actions If a disk drive does not have its Check light on the SSA loop tha
3. The Check light on the selected disk drive flashes This action does not affect the customer s operations For more information about the service aids see Service Aids and Other Utilities on page 29 18 IBM SerialRAID Adapter Maintenance Information Removing and Replacing FRUs Exchanging Disk Drives When a maintenance procedure requires you to replace a faulty disk drive with a new one first check whether the disk drive to be removed is a member of a RAID array e If the disk drive to be changed IS NOT a member of an array go to Exchanging an Array Disk on page 20 e If the disk drive to be changed IS a member of an array go to Exchanging a Non Array Disk Drive Replacement Disk Drives There are two points to note about a disk drive you are installing to replace a faulty unit e f the replacement disk drive is a new unit from the factory or one previously used in an AIX machine it will be placed on the list of New Resources It must be converted to a Free Resource before it can be used by the PC e f the replacement disk was previously formatted as a member of a RAID array in a different system it will be identified as a Pre Configured disk It must be converted to a Free Resource before it can be used in the new system Exchanging a Non Array Disk Drive The procedure depends on whether you are using the DOS configurator or the RSM configurator Using the DOS Configurator 1 From the Main Menu sel
4. e All other devices that are connected to the failing adapter and have the Fast Write enabled For details of how to disable Fast Write see Dealing with Fast Write Problems on page 12 3 Exchange the Fast Write Cache card for a new one 4 Ask the customer to re enable Fast Write for the devices that are attached to the new Fast Write Cache Card Service Request Numbers SRNs 7 SRN FRU List Problem 42522 Fast Write Cache Card 100 Exchanging the Fast Write Cache Card on page 23 Description A Fast Write Cache card has failed Data has been written to the card and cannot be recovered One or more 4 KB blocks of data for a known disk have been lost and cannot be read Action 1 Ask the customer to determine Which disk drives are affected by this error How much data has been lost Which data recovery procedures can be done 2 Ask the customer to disable Fast Write for Each device for which the Fast Write is offline All other devices that are connected to the failing adapter and have the Fast Write enabled For details of how to disable Fast Write see Dealing with Fast Write Problems on page 12 3 Exchange the Fast Write Cache card for a new one 4 Ask the customer to re enable Fast Write for the devices that are attached to the new Fast Write Cache Card 42523 None Description The Fast Write Cache Card has a bad version number Action Install the correct
5. Remove the pin H and the collar BA from the Fast Write Cache card 6 Referring to Figure 3 pull the Fast Write Cache card in the direction shown by the arrow in the diagram This action unplugs the card from the connector on the adapter card Removing and Replacing FRUs 25 c LE NN REELED v A LJ ELS 7 Figure 3 Removing the Fast Write Cache Card Installing the Cache Card r Attention Adapter cards contain parts that are electrostatic discharge ESD sensitive Use the tools and procedures defined by your organization to protect such parts 1 Remove the adapter from the using system if not already removed see the Installation and User Guide for the using system 26 IBM SerialRAID Adapter Maintenance Information AP Figure 4 Installing the Fast Write Cache Card onto a IBM SerialRAID Adapter 2 Orient the Fast Write Cache card as shown in the diagram and place it onto the adapter card 3 Push the card BA in the direction shown by the arrow in the diagram and plug it into the connector on the adapter card 4 Refer to Figure 5 on page 28 Removing and Replacing FRUs 27 28 Figure 5 Installing the Collar and Pin of the Fast Write Cache Card 5 Hold the collar EJ so that its split end is downward 6 Install the collar into the Fast Write Cache card so that its split end is downward
6. SSA Link Error Problem Determination 15 l ink Status Lights 13 BE ets RE AE SENE Pere 16 Locating a Broken Loop 17 Removing and Replacing FRUS _ 19 Exchanging Disk Drives 19 Replacement Disk Drives 19 Exchanging a Non Array Disk Drive 19 Exchanging an Array Disk 20 Exchanging DRAMSs on the IBM SerialRAID Adapter 22 Removing a DRAM 22 Installing a DRAM 23 Exchanging the Fast Write Cache Card 23 Removing the Cache Card 23 Installing the Cache Card 26 Service Aids and Other Utilities 29 Disk Service Aids 2 202 suus do m ok eom dran BOX oU d e d RR A mode 29 Accessing Service Aids from the DOS Configurator 29 Accessing Service Aids from the RSM Configurator 30 Service Mode 4 dou rade RUE s bd eb KA ARS ae Eos 31 To Set Service Mode with the DOS Configurator 31 To Set Service Mode With the RSM Configurator 33 EormatDISk 4e eu mee eR Rer e tee ar Puede TR Wat mS 34 To Format Using the DOS Configurator 34 To Format With the RSM Configurator 35 Gertify DISK x ecute ns
7. Using the DOS Configurator select SSA Adapter List from the main menu Select the appropriate adapter from the list From the adapter menu select Run Concurrent Diagnostics If an SRN is produced go to Service Request Numbers SRNs on page 3 Step 005 continues MAPs 2010 1 MAP 2010 continued 005 continued If no SRN is produced go to MAP 2410 SSA Repair Verification on page 2410 1 Go to Service Request Numbers SRNs on page 3 007 From step 003 IS THE SRN 45PAA Yes No 008 Go to Step 010 009 Go to MAP 2320 SSA Link on page 2320 1 010 From step 008 IS THE SRN IN THE RANGE 21000 THROUGH 29FFF Yes No 011 Go to Step 013 012 Go to MAP 2323 SSA Intermittent Link Error on page 2323 1 From step 011 IS THE SRN 46000 47000 47500 49000 49100 49500 OR 49700 Yes No 014 You are in the wrong book Go to the correct service information for your problem 2010 2 IBM SerialRAID Adapter Maintenance Information 015 Go to MAP 2324 SSA RAID on page 2324 1 MAPs 2010 3 Notes 2010 4 IBM SerialRAID Adapter Maintenance Information MAP 2320 SSA Link This MAP helps you to isolate FRUs that are causing an SSA loop problem between a device and the IBM Ser
8. 2 SRN 24002 identified the SSA address of the third disk drive as 02 the address AA 1 of the other device on the link is therefore 01 SSA address 01 is the address of the second disk drive SRN 24002 indicates therefore that link errors have been detected between the second and third disk drives Similarly SRN 24104 identified the SSA RAID adapter The SSA address of the adapter is 04 The address of the other device is therefore 03 SSA address 03 is the address of the first disk drive SRN 24104 indicates therefore that link errors have been detected between adapter port A2 and the first disk drive Exchange in the sequence shown the following FRUs for new FRUs Ensure that for each FRU exchange you go to MAP 2410 SSA Repair Verification on page 2410 1 to verify the repair MAPs 2323 3 MAP 2323 continued 1 One of the two devices that are identified by the SRN see Exchanging Disk Drives on page 19 2 The other of the two devices 3 The internal SSA connections of the unit or units in which the devices are installed 4 The external SSA cable 2323 4 IBM SerialRAID Adapter Maintenance Information MAP 2324 SSA RAID This MAP helps you to solve problems that have occurred in SSA RAID arrays Attention It is not necessary to turn off the system unit when servicing and SSA link unless it needs to be turned off for some other reason Unit power cables and external SSA cables that conn
9. Go to Step 090 on page 2324 18 041 From step 010 An array is in the Exposed state when one member disk drive of the array is not available When an array is in the Exposed state its data is not protected A command line parameter is available to prevent write operations to an array that is in the Exposed state Refer to the BM SerialRAID Adapter Installation and User s Guide for information on array states Using the SSA Configurator and Service Aids Utility select the appropriate adapter then from the adapter menu select Rejected Disks Using the RSM configurator go to the Logical View and select Rejected ARE ANY DISK DRIVES LISTED Yes No 042 A disk drive has not been detected by the adapter Go to Step 045 on page 2324 10 043 Run nonconcurrent diagnostics to all the disk drives that are listed as rejected Step 043 continues MAPs 2324 9 MAP 2324 continued 043 continued Run the Certify service aid see Certify Disk on page 35 to all the disk drives that are listed as rejected If problems occur on any disk drive go to Step 044 otherwise continue with this procedure Do the actions described in Adding a Disk Drive to an Array on page 44 Referring to the displayed instructions select a disk from the list of array candidate disk drives and add that disk drive to the array that is in the Exposed state The array changes its state f
10. Start the RSM configurator and select the appropriate adapter from the adapter list On the Adapter View page select the Logical View On the Logical View page select the RAID type This opens the Resource list listing the defined arrays 4 Select the required array 5 On the Array View page scroll down to the list of array members 6 Select the disk drive that you want to remove This will take you to the Disk View page for this disk On the Disk View page click on the Comp Exchange button A list is displayed showing the Free Resource candidates that are suitable as replacements for the array disk drive Select an appropriate Free Resource Removing and Replacing FRUs 21 The array disk drive is logically removed from the array returned to the list of Free Resources and replaced by the selected Free Resource 9 If you need to perform maintenance on the disk drive you have logically removed from the array a Display the list of Free Resources b Select the disk drive that you logically removed from the array c Set Service Mode You can now physically remove the disk drive for maintenance Exchanging DRAMs on the IBM SerialRAID Adapter Removing a DRAM r Attention Adapter cards contain parts that are electrostatic discharge ESD sensitive Use the tools and procedures defined by your organization to protect such parts 1 Shut down the operating system Remove power from the system Re
11. The opening page to be displayed is the adapter list From the adapter list select the appropriate adapter This opens the adapter view page On the adapter view page select the logical view The logical view includes details of new resources if there are any detected by the adapter These are listed under the heading of System AIX Click on the heading System AIX This displays the Resource List page for new resources described as Non RAID disks System AIX Select any one or all items in the list and click on the Delete button at the bottom of the page The items are deleted from the list of New Resources and added to the list of Free Resources the AIX indicator on the disk is reset IBM SerialRAID Adapter Maintenance Information Deleting a Resource from the System Resource List Note Only resources that are listed in the system resource list are configured when you next boot the system Using the DOS Configurator 1 2 3 Start the DOS configurator and select SSA Adapter List from the main menu From the adapter list menu select System Resources Select the resource that you want to remove from the system resource list Note A resource can be a disk drive or an array Press Delete The resource is removed from the System Resource List and returned to the list of free resources Reboot the system to bring the changes into effect Removing a Disk Drive from an Array This procedure allows
12. a Exchanging Disk Drives on page 19 software error has occurred SSA adapter card 50 Action Go to Software and Microcode Errors on page 12 before exchanging any FRUs 2A003 Device 50 Description Async code 03 has been received Probably a Exchanging Disk Drives on page 19 software error has occurred SSA adapter card 50 Action Go to Software and Microcode Errors on page 12 before exchanging any FRUs 2A004 Device 50 Description Async code 04 has been received Probably a Exchanging Disk Drives on page 19 software error has occurred SSA adapter card 50 Action Go to Software and Microcode Errors on page 12 before exchanging any FRUs 2FFFF None Description An async code that is not valid has been received Action Go to Software and Microcode Errors on page 12 303FF Device 100 Description A SCSI status that is not valid has been received Exchanging Disk Drives on page 19 Action Go to Software and Microcode Errors on page 12 40000 SSA adapter card 100 Description The SSA adapter card has failed Action Exchange the FRU for a new FRU 40004 4 MB DRAM module 0 100 Description A 4 MB DRAM in adapter card module 0 has failed Exchanging DRAMs on the IBM Action Exchange the FRU for a new FRU SerialRAID Adapter on page 22 40008 8 MB DRAM module 0 100 Description An 8 MB DRAM in adapter card module 0 has Exchanging DRAMs on the IBM failed Se
13. adapter microcode for this card 42524 Fast Write Cache Option Card 100 Description A fast write disk drive or drives that does not contain synchronized data has been detected The Fast Write Cache Card however cannot be detected The disk drive or drives is offline Action e If the Fast Write Cache Card has been removed reinstall it e If the Fast Write Cache card has failed 1 Ask the customer to disable the Fast Write for Each device for which the Fast Write is offline All other devices that are connected to the failing adapter and have Fast Write enabled For details of how to disable Fast Write see Dealing with Fast Write Problems on page 12 2 Exchange the Fast Write Cache Card for a new one 3 Ask the customer to re enable Fast Write for the devices that are attached to the new Fast Write Cache Card 8 IBM SerialRAID Adapter Maintenance Information SRN FRU List Problem 42525 None Description The wrong Fast Write Cache Card has been detected by a fast write disk drive that contains unsynchronized data Action The failing disk drive is offline If the disk drive has just been moved from another adapter do either of the following actions Return the disk drive to its original adapter Move the original Fast Write Cache card to this adapter so that the data can be synchronized If you cannot do either action or the data on the disk drive has no
14. determine the position of a particular disk drive that you want to identify but do not want to remove Identify causes the Check light of the disk drive to flash for identification two seconds on two seconds off but has no effect on the normal operation of the disk drive It also causes the Check light if present of the unit containing the selected disk drive to flash You can use the Identify function on any number of disk drives at the same time Instructions displayed by the service aids tell you when you can select the Identify function The service aids display the UIDs of the devices By checking the UID on the serial number label on the device you can verify that the correct device has its Check light flashing To Identify with the DOS Configurator 1 Start the DOS Configurator see Accessing Service Aids from the DOS Configurator on page 29 and select SSA Adapter List 2 Select the required adapter from the list Note From this point the Identify service aid can be accessed from most of the DOS Configurator displays 3 To start the Identify function press F9 FlashOn To end the Identify function press F10 FlashOff To Identify With the RSM Configurator 1 Start the RSM Configurator see Accessing Service Aids from the RSM Configurator on page 30 On the Adapter List page select the required adapter On the Adapter View page select the Physical View On the Physical View page select the required disk
15. device enclosure 20 Hardware Maintenance Manual Description The SSA adapter has detected an open SSA loop Action If the SSA service aids are available run the Disk service aid see Service Aids and Other Utilities on page 29 to determine which part of the loop is failing If the SSA service aids are not available note the value of PAA in this SRN and go to Finding the Physical Location of a Device on page 38 46000 None Description An array is the Offline state because more than one disk drive is not available At least one member disk drive of the array is present but more than one member disk drive is missing Action Go to MAP 2010 START on page 2010 1 47000 None Description An attempt has been made to store in the SSA adapter the details of more than 32 arrays Action Go to MAP 2010 START on page 2010 1 47500 None Description Part of the array data might have been lost Action Go to MAP 2010 START on page 2010 1 48000 None Description The SSA adapter has detected a link configuration that is not valid Action See SSA Loop Configurations that Are Not Valid on page 12 49000 None Description An array is in the Degraded state because a disk drive is not available to the array and a write command has been sent to that array Action A disk drive might not be available for one of the following reasons The disk drive has failed The disk d
16. diagnostics the microcode or the documentation Call your support center for assistance 2 Read carefully the Action you must do for the problem Do not exchange adapters unless you are instructed to do so 3 Normally exchange only one adapter at a time Always use instructions provided with the system unit when exchanging adapters After each adapter is exchanged go to MAP 2410 SSA Repair Verification on page 2410 1 to verify the repair Exchanging DRAMs on the IBM SerialRAID Adapter on page 22 4 IBM SerialRAID Adapter Maintenance Information SRN FRU List Problem 20PAA Device 45 Description An open SSA link has been detected Exchanging Disk Drives on page 19 Action Run the Disk service aid to isolate the failure see SSA adapter card 45 Service Aids and Other Utilities on page 29 External SSA cables 6 If the SSA service aids are not available go to the service Internal SSA connections 4 information for the unit in which the device is installed Hardware Maintenance Manual 21PAA Device 45 Description An SSA Threshold exceeded link error has been to Exchanging Disk Drives on page 19 detected 29PAA SSA adapter card 45 Action Go to MAP 2010 START on page 2010 1 External SSA cables 6 Internal SSA connections 4 Hardware Maintenance Manual 2A002 Device 50 Description Async code 02 has been received Probably
17. disk drive click FlashOff to remove the function 5 You can now remove the faulty disk drive and insert the replacement 6 To reset Service Mode on the new disk move back to the Physical View page and click on the Reset Service Mode button at the base of the page If necessary convert the newly installed disk drive into a free resource see the configurator information in the BM SerialRAID Adapter Installation and User s Guide Exchanging an Array Disk 20 This section describes how a disk is logically removed from an array and replaced by a compatible Free Resource Such action could be necessay for example to check a disk drive that is giving a high level of read write errors but has not been rejected from the array This action is also necessary if an array disk develops a hard fault and there is no hot spare available If this happens at the next write operation the faulty disk is automatically de configured and moved to the Rejected list In the array the faulty disk is replaced by a Blank Reserved To restore the array to its full operational status you need to replace the Blank Reserved in the array with a suitable Free Resource Note If there was a Hot Spare available when the array disk became faulty the hot spare is automatically integrated into the array and the faulty disk moved to the list of Rejected disks The procedure in this event is to convert the Rejected disk to a Free resource then change it as describe
18. drive On the Disk View page use the Flash On and Flash Off buttons at the bottom of the page as necessary Qv Roc D Download Microcode Function At some time on a customer site you might be required to install the latest versions of either the disk or adapter microcode To download disk microcode first obtain the latest SSA PC UCODE package from the SSA Customer Support Homepage located at http www hursley ibm com ssa pcserver After installing to your disk drive run the disk downloader tool issaddld with each of the drive microcode files dl usually copied to c issa ssaflash Service Aids and Other Utilities 37 To install the latest version of the adapter microcode follow the same instructions as for disk microcode except that the download tool to use is ISSAADLD and file extensions are Ixx where xx identifies the adapter type 04 is for the IBM SerialRAID Adapter Note To check the latest instructions on how to download microcode read the README TEXT file that is on one of the diskettes supplied with the adapter Finding the Physical Location of a Device The physical location of a device for example a disk drive or an SSA RAID Adapter is not reported by the system for all disk subsystems which means that the SSA Address cannot be used The address of an SSA device is related to the position of that device on the SSA loop The address can therefore change if the configuration is changed Finding t
19. e uh ee Rate te etu C ERREUR Ue e PO NA 35 To Certify using the DOS Configurator 35 To Certify With the RSM Configurator 36 Copyright IBM Corp 1998 iii iv The Identify Function 37 To Identify with the DOS Configurator 37 To Identify With the RSM Configurator 37 Download Microcode Function 37 Finding the Physical Location of a Device 38 Finding the Device When Service Aids Are Available 38 Finding the Device When No Service Aids Are Available 38 The Event Error Logger 39 Analyze SSA Event Log 39 View SSA Event Log 39 Stop SSA Event Logging 39 Modify Event Logger Time Out 39 Error Summary anse wad ae eae doe peer eh le alien ok 39 Maintenance Tasks 41 Converting a New Resource to a Free Resource 41 Using the DOS Configurator 41 Using the RSM Configurator 42 Deleting a Resource from the System Resource List 43 Using the DOS Configurator 43 Removing a Disk Drive from an Array 43 Listing or Deleting Records of Old Arrays inth
20. is displayed showing the resources that are attached to the system The list will be empty if this is the first time the configurator has been run since no resources have yet been attached ltems in the list can include disks arrays and disks or arrays with fast write capabilities The resources are listed in the sequence of the resource numbers The configurator assigns disk drive addresses that are directly related to the positions in the resource list that you have selected for the attachment of the resources The System configures the resources in resource number sequence when the system is booted If you are attaching the first resource and the list is as yet empty just press Insert If there are resources already listed put the cursor against the name of the resource immediately below where you want the new resource to be added then press Insert To add a resource to the end of the list put the cursor below the current end of the list and press Insert A list of candidate resources is displayed These are the resources that are in the free state Select the resource that you want to attach The name disappears from this list and the System Resources window is re displayed showing the new resource added with the appropriate resource number assigned The SSA subsystem is now ready for use with your system Maintenance Tasks 47 48 IBM SerialRAID Adapter Maintenance Information Maintenance Analysis Procedures MAPS Th
21. parity on an array is not complete Go to Step 051 on page 2324 11 011 From step 010 An array is in the Offline state if at least one member disk drive of the array is present but more than one member disk drive is missing Such a condition can occur if at least two disk drives in the array have failed or are not available to the array at this time ARE ANY DISK DRIVES MISSING OR WITHOUT POWER OR HAVE ANY DISK DRIVES BEEN RE CABLED not necessarily by you Yes No 012 Go to Step 014 on page 2324 4 013 You must now restore the original configuration Using the DOS Configurator select the appropriate adapter then from the adapter menu select RAID 5 Resources Using the RSM configurator go to the logical view and select either RAID Lists or System PC List for JBOD Step 013 continues MAPs 2324 3 MAP 2324 continued 2324 4 013 continued The status of the array changes to Good when the adapter can find all the member disk drives of the array From step 012 Either more than one disk drive has failed or an array that is not complete has been connected to the IBM SerialRAID Adapter If no disk drives have been added to this system go to Step 015 If one or more disk drives have been added to this system and those disk drives were previously members of an array on this system or on another system you must do the following Do the actions that are de
22. 7 8 Install the pin Kl into the collar and push it fully home Reinstall the adapter card into the system unit see the service information for the system unit IBM SerialRAID Adapter Maintenance Information Service Aids and Other Utilities A number of service aids and utilities are available with the DOS Configurator to assist in maintenance tasks These include The Disk Service Aids The Identify function The Download Microcode function How to find the physical location of a device Similar functions are available through the RSM Configurator but the RSM also provides access to Event Error Logging Disk Service Aids The Service Aids allow you to perform general maintenance functions on a selected physical disk drive They are accessible through the configurator utilities when an adapter is selected The service aids available are Service Mode Set and Reset Service Mode enables you to find a selected disk drive on the SSA loop and to remove the drive from the loop Format Disk This formats an SSA disk drive Certify Disk This verifies that all the data on a disk drive can be read correctly Diagnostics Concurrent and Nonconcurrent diagnostics are available Attention Do not run the service aids from more than one system at a time otherwise unexpected results might occur Before using the service aids ensure that you are familiar with the principles of SSA loops If you are not fi
23. AID Adapter Maintenance Information Confirmation Do you really want to format this disk Yes No Disk drive nnnnnnnn has been selected for formatting All data on this physical disk will be lost Note before formatting a physical disk ensure that the disk has been powered on for at least 30 minutes 6 7 Answer the prompt If you want to find out how the format operation is progressing look at the resource attributes To Format With the RSM Configurator 1 Qv LB ceo Start the RSM Configurator see Accessing Service Aids from the RSM Configurator on page 30 On the Adapter List page select the required adapter On the Adapter View page select the Physical View On the Physical View page select the required disk drive On the Disk View page click on the Format button at the bottom of the page Certify Disk The Certify service aid verifies that all the data on a disk drive can be read correctly Other maintenance procedures will advise you when you need to run this service aid To Certify using the DOS Configurator 1 Start the DOS Configurator see Accessing Service Aids from the DOS Configurator on page 29 and select SSA Adapter List 2 Select the required adapter from the list then from the Adapter Menu select Disk Service Aids The Disk Service Aids window is displayed Service Aids and Other Utilities 35 ISSACFG SSA Configurator and S
24. AM and cache sizes Device Specifics Z0 and Z1 6 For fast write operations you must have a 32 MB DRAM Check that you have the correct size of DRAM Description A fast write disk is installed but no Fast Write Cache Card has been detected This problem can be caused because The cache card is not installed correctly The Fast Write feature is not installed on this machine but a disk drive that is configured for fast write operations has been added to the subsystem Action 1 If you have not already done so run diagnostics on the adapter If a different SRN is generated solve that problem first 2 Do the following actions as appropriate e If the cache card is not installed correctly remove it from the adapter and reinstall it correctly e If the cache card is installed correctly it might have failed Exchange for new FRUs the FRUs that are shown in the FRU list for this SRN e If the Fast Write feature is not installed and you want to delete the fast write function for one or more disk drives that have been added to this subsystem 3 Verify with the customer that the fast write function can be deleted for the disk drives configured for fast write 4 Using the RSM configurator select the resource in question and select Delete FW See Dealing with Fast Write Problems on page 12 for more details 6 IBM SerialRAID Adapter Maintenance Information SRN FRU List Problem 42520 F
25. ATE DISK DRIVES LISTED Yes No 049 Review with the user the requirement for hot spare disk drives If the customer wants hot spare disk drives one or more disk drives must have their use changed to Hot Spare Disk If the customer does not want hot spare disk drives Go to Modifying Attributes of Resources on page 44 Change the Enable Use of Hot Spares attribute to No Using the RSM configurator select the array in question then select the Modify Attributes button Go to Creating an Array on page 45 and create a hot spare disk drive from one of the listed candidate disk drives You have solved the problem Note Because this problem has occurred an error log is generated when the system runs the health check program To verify that the availability of hot spare disk drives has solved the problem 1 Run concurrent diagnostics to the adapter 2 Verify that error code 049500 is not returned 051 From step 010 The RAID Manager cannot fully create parity for this array All read and write operations can complete normally but the failure of one disk drive can cause the loss of some data The problem might be caused by a rebuild operation that is running on a array You must first check whether a rebuild operation is running If a rebuild operation is not the cause the user must delete the array then recreate it Step 051 continues MAPs 2324 11 MAP 2324 con
26. Dxxxxx UIDyxxxx UID3xxxx UIDAxxxx Port A2 Port B1 No disks Port B2 ESCAPE Exit ENTER Select Fl Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn F10 FlashOff L J ARE ANY DISK DRIVES LISTED FOR THE SELECTED SSA ADAPTER Yes No 008 One of the following conditions exists Take the action described e No physical disks are connected to this IBM SerialRAID Adapter 1 Ensure that the external SSA cables are correctly connected to the units in which the devices are installed and to the SSA RAID Adapter 2 Go to MAP 2410 SSA Repair Verification on page 2410 1 to verify the repair All the disk drives are turned off Go to the START MAP for the unit in which the SSA devices are installed The IBM SerialRAID Adapter is failing 1 Exchange the adapter for a new one 2 Go to MAP 2410 SSA Repair Verification on page 2410 1 to verify the repair 2320 2 IBM SerialRAID Adapter Maintenance Information 009 Go to Step 010 010 From step 009 Observe the Status column on the screen If the status of any disk drive is Power that disk drive has detected a loss of redundant power or cooling In the example shown here the fourth disk drive has detected such a loss On the RSM configurator this is shown as a red line in the Physical View with the added text Break lr
27. IBM PC Servers SY33 0193 00 IBM SerialRAID Adapter for PC Servers Hardware Maintenance Manual Supplement October 1998 Use this supplement with the Hardware Maintenance Manual for the PC Server IBM PC Servers SY33 0193 00 IBM SerialRAID Adapter for PC Servers Hardware Maintenance Manual Supplement October 1998 Use this supplement with the Hardware Maintenance Manual for the PC Server Note Before using this information and the product it supports be sure to read the general information under Notices in the product documentation First Edition October 1998 The following paragraph does not apply to any country where such provisions are inconsistent with local law INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties in certain transactions therefore this statement may not apply to you This publication could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in new editions of the publication IBM may make improvements or changes in the products or the programs described in this publication at any time It is possible that this publication may contain refere
28. ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port A1 UIDXxxxxx UIDyxxxx UID3xxxx UIDAxxxx Power Port A2 Port B1 No disks Port B2 lt F10 gt FlashOff ESCAPE Exit ENTER Select F3 Certify F4 ServiceMode Fl Help F2 Format F5 Diagnostics F9 FlashOn Oooo E DO ONE OR MORE DISK DRIVES HAVE A POWER STATUS Yes No 011 012 Go to Step 013 on page 2320 4 Go to the START MAP for the unit in which the disk drive is installed MAPs 2320 3 MAP 2320 continued 013 From step 011 Observe the Status column on the screen If the status of any disk drive is Failed that disk drive is failing In the example shown here the fourth disk drive is failing On the RSM configurator this is shown as an icon in the PFA column of the Physical View 3 ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port Al UIDxxxxx UIDyxxxx UID3xxxx UIDAxxxx Failed Port A2 Port B1 No disks Port B2 ESCAPE Exit ENTER Select Fl Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn F10 FlashOff g J IS ONE OF THE DISK DRIVES FAILING Yes No 014 Go to Step 016 on
29. Internal Disk Drive 1 Connection Drive 2 Copyright IBM Corp 1998 15 Example 2 This link is between two disk drives that are in the same subsystem It has five parts SSA Subsystem lt Disk Internal Dummy Internal Disk Disk i 1 Drive 1 Connection Drive Connection Drive 2 Example 3 This link is between two disk drives that are not in the same subsystem It has seven parts SSA Subsystem SSA Subsystem 2 lt A SSA Cable SSA Disk Internal Internal Disk Drive Connection Connector connecter Connection Drive Example 4 This link is between a disk drive and an SSA RAID Adapter It has five parts SSA Subsystem Disk Internal SSA Cable Adapter Drive Connection Connector Link Status Lights 16 If a fault occurs that prevents the operation of a particular link the link status lights of the various parts of the complete link show that the error has occurred You can find the failing link by looking for the flashing green status light at each end of the affected link Some configurations might have other indicators along the link for example SSA connector cards to help with FRU isolation The meanings of the disk drive and adapter lights are summarized here IBM SerialRAID Adapter Maintenance Informatio
30. MPONENT STRIDES Yes No 079 Go to Step 081 on page 2324 17 2324 16 IBM SerialRAID Adapter Maintenance Information 080 Go to Step 001 on page 2324 2 081 From step 079 HAVE DISK DRIVES BEEN GOING INTO THE REJECTED STATE WITH NO OTHER FAILURE INDICATIONS Yes No 082 Go to Step 084 083 This problem can occur if an array is accessed before all the member disk drives are available Ensure that the power system turns on power to all the disk drives before or when it turns on the power to the system unit 084 From step 082 WAS SRN 46000 LOGGED BUT NO ERROR FOUND WHEN CONCURRENT DIAGNOSTICS WERE RUN Yes No 085 Go to Step 087 086 An array was in the Offline state but is now available Ensure that the power system turns on power to all the disk drives before or when it turns on the power to the system unit 087 From step 085 Step 087 continues MAPs 2324 17 MAP 2324 continued 087 continued WAS SRN 49100 LOGGED BUT NO ERROR FOUND WHEN CONCURRENT DIAGNOSTICS WERE RUN Yes No 088 You have solved all the array problems 089 An array was in the Exposed state but is now in the Good state This problem might have occurred because a disk drive was temporarily removed from the system Ensure that the power system turns on power to all the disk drives before or when it
31. W Note All Fast Write resources are identified with the symbol of a lightening flash against them Service Request Numbers SRNs 13 14 IBM SerialRAID Adapter Maintenance Information SSA Link Errors SSA link errors can be caused by a number reasons for example if Power is removed from an SSA device An SSA device is failing An SSA device is removed e A cable is disconnected Errors might be indicated in various ways such as SRN 45PAA A flashing link status Ready light on the SSA device at each end of the failing link The indication of an open link when using the Disk Service Aid SSA Link Error Problem Determination Instead of using the normal MAPs to solve a link error problem you can refer directly to the link status lights to isolate the failing FRU The descriptions given here show you how to do this In an SSA loop devices are connected through two or more SSA links to an SSA RAID Adapter Each SSA link is the connection between two SSA nodes devices or adapters for example Disk drive to disk drive e Adapter to disk drive module Adapter to adapter An SSA link can contain several parts When doing problem determination think of the link and all its parts as one complete item Here are some examples of SSA links Each link contains more than one part Example 1 This link is between two disk drives that are in the same subsystem It has three parts SSA Subsystem Disk
32. ast Write Cache Card 100 Description Fast Write Cache Card has failed Data has been written to the cache card and cannot be recovered The location of the lost data is not known The disk drive is offline Action 1 Ask the customer to determine Which disk drives are affected by this error How much data has been lost Which data recovery procedures can be done 2 Ask the customer to disable the Fast Write feature for Each device for which Fast Write is offline e All other devices that are connected to the failing adapter and have Fast Write enabled For details of how to disable Fast Write see Dealing with Fast Write Problems on page 12 3 Exchange the Fast Write Cache Card for a new one 4 Ask the customer to re enable Fast Write for the devices that are attached to the new Fast Write Cache Card 42521 Fast Write Cache Card 10096 Exchanging the Fast Write Cache Card on page 23 Description A Fast Write Cache card has failed Data has been written to the card and cannot be recovered The disk drives that have lost data cannot be identified All unsynchronized fast write disk drives that are attached to this adapter are off line Action 1 Ask the customer to determine Which disk drives are affected by this error How much data has been lost Which data recovery procedures can be done 2 Ask the customer to disable Fast Write for Each device for which the Fast Write is offline
33. configured from either the local server or from a remote server For the complete details of how to configure an IBM SerialRAID Adapter you should consult the BM SerialRAID Adapter Installation and User s Guide Converting a New Resource to a Free Resource A new resource is one that has not been used previously by the type of system in which it is now installed For example a new disk drive to be installed could have arrived directly from the factory or have been used previously in an AIX system In both events the disk itself indicates that it is for AIX usage This task resets the AIX indication and places the disk in the FREE state so that it can be used by the PC Using the DOS Configurator 1 Start the DOS Configurator 2 From the main menu select SSA Adapter List to display the list of installed adapters 3 Select the required adapter from the list 4 From the adapter menu select New Resources 5 The New Resource list is displayed a If there are new resources in the list go to step 6 b If there are no new resources in the list go to step 7 6 For each new resource that you want to convert to the Free state put the cursor against its name and press Delete The resource is converted to the free state and its name is removed from the list of new resources 7 Return to the Main menu by pressing Esc Copyright IBM Corp 1998 41 Using the RSM 42 1 C onfigurator Start the RSM Configurator
34. d in Exchanging a Non Array Disk Drive on page 19 The new disk can then be reassigned as a Hot Spare to replace the one that was used IBM SerialRAID Adapter Maintenance Information Exchanging an Array Disk Using the DOS Configurator 1 2 E EE LI 2 G0 Start the DOS Configurator From the Main Menu select SSA Adapter List then select the required adapter from the list From the Adapter Menu select RAID 5 Resources Select the array from which you want to remove a disk drive Select View Members Select the disk drive that you want to remove Press F7 Exchange Members This displays a list of Free Resources disk drives that are compatible as replacements for the array disk drive The list also includes the item Blank Reserved If there are no Free Resources available and you intend to physically remove the array disk you must exchange the array disk with the Blank Reserved Select an appropriate Free Resource or the Blank Reserved The selected item replaces the disk drive in the array The array disk drive is logically removed and returned to the list of Free Resources If you need to perform maintenance on the disk drive removed from the array a Go to the list of Free Resources b Select the disk drive that you logically removed from the array c Set Service Mode You can now physically remove the disk drive for maintenance Exchanging an Array Disk Using the RSM Configurator 1 2 3
35. drive to the adapter to which it was previously connected If the disk drive does not contain data that should be kept ask the user to delete all offline items 1 Open the RSM Configurator and go to the Resource View 2 Select Detach or Delete as appropriate When the items have been deleted the disk drive becomes free 43PAA Device 90 Exchanging Disk Drives on page 19 SSA adapter card 10 Description An SSA device on the link is preventing the completion of the loop configuration Action Go to MAP 2010 START on page 2010 1 Service Request Numbers SRNs 9 SRN FRU List Problem 44PAA Device 100 Exchanging Disk Drives on page 19 Description An SSA device has a Failed status Action If the SSA service aids are available run the Disk service aid see Service Aids and Other Utilities on page 29 to find the failing device If no device is listed as Rejected use the PAA part of the SRN to determine which device is failing Before you exchange the failing device run nonconcurrent diagnostics to that device to determine the cause of the problem If the SSA service aids are not available note the value of PAA in this SRN and go to Finding the Physical Location of a Device on page 38 Exchange the failing FRU for a new FRU 45PAA Device 40 Exchanging Disk Drives on page 19 SSA Adapter card 40 SSA cables or other SSA connections in the
36. e Disk Service Aids Individual service actions such as Format Certify and Set Service Mode are available on each individual resource menu Resource Views Disks and RAID 5 arrays are accessed from the Logical View page Copyright IBM Corp 1998 49 Notes 50 IBM SerialRAID Adapter Maintenance Information MAP 2010 START This MAP is the entry point to the MAPs for the IBM SerialRAID Adapter If you are not familiar with these MAPs read Introduction to Using the MAPs on page 49 first You might have been sent here because The system problem determination procedures sent you here Action from an SRN list sent you here A problem occurred during the installation of a disk subsystem or a disk drive Another MAP sent you here A customer observed a problem that was not detected by the system problem determination procedures Attention Unless the system unit needs to be turned off for some other reason do not turn off the system when servicing the SSA loop Unit power cables and external SSA cables that connect the devices to the system can be disconnected while that System is running 001 HAVE YOU BEEN SENT HERE FROM THE SRN LIST IN THIS BOOK Yes No 003 002 Go to Step 004 Go to Step 007 on page 2010 2 004 From step 002 DO YOU HAVE AN SRN Yes No 005
37. e NVRAM 43 Adding a Disk Drive to an Array e 44 Modifying Attributes of Resources 44 Creating an Array 45 Attaching a Resource to the System 47 Maintenance Analysis Procedures MAPS 49 Introduction to Using the MAPS 49 A Note on Configurator Utilities 49 MAP 2010 START idee Ghai RR AR CHER 2010 1 MAP 2320 SSALink 2320 1 MAP 2323 SSA Intermittent Link Error 2323 1 MAP 2324 SSA RAID 2324 1 MAP 2410 SSA Repair Verification 2410 1 IBM SerialRAID Adapter Maintenance Information About This Supplement This book is intended for service representatives who maintain PC servers that use the IBM SerialRAID Adapter How This Book Is Organized Introducing the IBM SerialRAID Adapter on page 1 introduces the IBM SerialRAID Adapter Service Request Numbers SRNs on page 3 provides a table of service request numbers SRNs that are related to the IBM SerialRAID Adapter Removing and Replacing FRUs on page 19 describes how to exchange disk drives DRAMs and the Fast Write cache Service Aids and Other Utilities on page 29 describes the SSA service aids Maintenance Tasks on page 41 describes a number of tasks involving the c
38. e found 018 Use the Identify function as instructed on the screen to find the devices disk drives or adapters that are on each side of the broken link See Finding the Physical Location of a Device on page 38 if you need more information about finding the disk drive Go to SSA Link Errors on page 15 The information that is provided there can help you solve the problem If necessary refer to the service information for the unit that contains the device MAPs 2320 5 Notes 2320 6 IBM SerialRAID Adapter Maintenance Information MAP 2323 SSA Intermittent Link Error This MAP helps you to isolate FRUs that are causing an intermittent SSA link problem You are here because you have an SRN from the series 21000 through 29000 If you are not familiar with SSA loops read the information relating to SSA links strings and loops contained in the BM SerialRAID Adapter Installation and User s Guide Attention It is not necessary to turn the system off when servicing an SSA loop unless the system unit needs to be turned off for some other reason Power cables and external SSA cables can be disconnected while the system is running 001 Start the DOS Configurator From the Main menu select SSA Adapter List Select the required adapter from the SSA Adapter List Select Disk Service Aids from the Ada
39. e maintenance analysis procedures MAPs describe how to analyze a failure that has occurred in an SSA loop Introduction to Using the MAPs Do not turn off the system unit when servicing an SSA loop unless the system unit needs to be turned off for some other reason Unit power cables and external SSA cables that connect the devices to the system can be disconnected while that system is running To isolate the FRUs do the actions and answer the questions given in the MAPs When instructed to exchange two or more FRUs in sequence proceed as follows 1 Exchange the first FRU in the list for a new one 2 Verify that the problem is solved For some problems verification means running the diagnostic programs 3 If the problem remains a Reinstall the original FRU b Exchange the next FRU in the list for a new one 4 Repeat steps 2 and 3 until either the problem is solved or all the related FRUs have been exchanged 5 Do the next action indicated by the MAP Remember that disk drives are fragile Handle them with care and keep them well away from strong magnetic fields A Note on Configurator Utilities Text in this section refers to the DOS configurator If you are using the RSM Remote System Management configurator all event logger functions can be accessed from the Event Logger button on the main page Diagnostic functions are available on each Adapter View page The Physical view in the RSM is equivalent to th
40. ect SSA Adapter List 2 Select the required adapter from the list displayed 3 From the Adapter Menu select Disk Service Aids 4 Select the disk drive that you want to change If necessary use the Identify function to find the disk drive Press F9 FlashOn the Check light flashes on the selected disk drive press F10 FlashOff to remove the function 5 Put the disk drive into Service Mode Place the cursor on the disk drive entry and press F4 6 Remove the old drive and replace it with a new one see the unit Hardware Maintenance Manual 7 Press Esc to exit from the Service Aids window This action automatically resets Service Mode on the new disk drive Copyright IBM Corp 1998 19 8 Repeat the procedure given above for any other disk drive that you are changing 9 If necessary convert the newly installed disk drive into a free resource see the configurator information in the BM SerialRAID Adapter Installation and User s Guide Using the RSM Configurator 1 Start the RSM configurator and select the appropriate adapter from the Adapter List 2 On the Adapter View page select the Physical View 3 On the Physical View page select the disk drive you want to change 4 On the Disk View page click on the Service Mode button at the bottom of the page to put the disk into service mode If necessary use the Identify function to find the actual disk drive Click FlashOn the Check light flashes on the selected
41. ect devices to the system can be disconnected while that system is running Before starting this MAP ensure that all the disk drives are working correctly 1 Using the DOS Configurator select SSA Adapter List from the main menu 2 Select the required adapter from the List 3 Select Disk Service Aids from the Adapter menu ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port A1 UIDXxxxx UIDyxxxx UID3xxxx UIDAxxxx Port A2 Port B1 No disks Port B2 ESCAPE Exit ENTER Select Fl Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn F10 FlashOff L J 4 Select Run Concurrent Diagnostics to identify any disk drive problems that have occurred 5 Check the Status column to find any power problems SSA link problems and SSA disk drives that have a Failed status 6 Correct all those problems before you start this procedure Attention Some of the steps in this MAP need you to change the configuration of the array or to change the use of an SSA disk drive Do not do those steps unless you have the user s permission 001 Step 001 continues MAPs 2324 1 MAP 2324 continued 001 continued From steps 009 077 and 080 You have been sent to this step either from another step in this MAP or because you have one of
42. ent RSM Configurator see the Installation and User Guide for details of how to load and start the RSM configurator Use the configurator to display the SRNs as follows 1 On the opening page select Event Logger 2 On the second page select Analyse The error log is analysed and all errors with a severity level that calls for service intervention are displayed The SRN Table The table in this section lists the SRNs and describes the actions you should take The table columns are SRN The service reference number FRU list The FRU or FRUs that might be causing the problem and how likely it is by percentage that the FRU is causing the problem Problem A description of the problem and the action you must take Abbreviations used in the table are DMA Direct memory access FRU Field replaceable unit PAA P Adapter port number AA SSA address see also Finding the Device When No Service Aids Are Available on page 38 PCI Peripheral Component Interconnect POST Power On Self Test Using the SRN Table Important You should have been sent here from either diagnostics or a START MAP Do not start problem determination from the SRN table always go to the START MAP for the unit in which the device is installed Copyright IBM Corp 1998 3 1 Find the SRN in the table If you cannot find the SRN refer to the documentation for the subsystem or device If you still cannot find the SRN you have a problem with the
43. er card 100 Description A software error has occurred Action Go to Software and Microcode Errors on page 12 before exchanging the FRU 50006 SSA adapter card 100 Description A channel check has occurred Action Exchange the FRU for a new FRU 50008 SSA adapter card 100 Description Unable to read or write the PCI registers Action Exchange the FRU for a new FRU 50010 SSA adapter card 100 Description An SSA adapter or device drive protocol error has occurred Action Go to Software and Microcode Errors on page 12 before exchanging the FRU 50012 SSA adapter card 100 Description The SSA adapter microcode has hung Action Run nonconcurrent diagnostics to the SSA adapter If the diagnostics fail exchange the FRU for a new FRU If the diagnostics do not fail go to Software and Microcode Errors on page 12 before exchanging the FRU D4000 SSA adapter card 100 Description The diagnostics cannot configure the SSA adapter Action Exchange the FRU for a new FRU D4100 SSA adapter card 100 Description The diagnostics cannot open the SSA adapter Action Exchange the FRU for a new FRU D4300 SSA adapter card 100 Description The diagnostics have detected an SSA adapter POST failure Action Exchange the FRU for a new FRU DFFFF SSA adapter card 10096 Note The description and action for this SRN are valid only if yo
44. ervice Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port A1 UIDXxxxx UIDyxxxx UID3xxxx UIDAxxxx Port A2 Port B1 No disks Port B2 ESCAPE Exit ENTER Select Fl Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn lt F10 gt FlashOff 3 Select the disk drive that you want to certify If you are not sure of the identification of the drive use the Identify function to get a positive physical identification see The Identify Function on page 37 You can further ensure that you have selected the correct disk drive by verifying that the serial number on the disk drive is the same as that displayed on the screen When you are sure that you have selected the correct disk drive press F3 Certify If you want to find out how the certify operation is progressing look at the resource attributes To Certify With the RSM Configurator 36 1 OW BG ON Start the RSM Configurator see Accessing Service Aids from the RSM Configurator on page 30 On the Adapter List page select the required adapter On the Adapter View page select the Physical View On the Physical View page select the required disk drive On the Disk View page click on the Certify button at the bottom of the page IBM SerialRAID Adapter Maintenance Information The Identify Function This service aid enables you to
45. he SSA RAID Adapter Read through the following examples if you need help in identifying the device then go to Step 003 on page 2323 3 Otherwise go directly to Step 003 on page 2323 3 Example 1 If the SRN is 24002 the device is connected to adapter port 0 shown as A1 on the screen and has an SSA address of 02 shown as 2 on the screen In the example screen that device is the third disk drive IBM SerialRAID Adapter Maintenance Information ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port A1 UIDOxxxx UID1xxxx UID2xxxx UID3xxxx Port A2 Port B1 No disks Port B2 ESCAPE Exit ENTER Select Fl Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn F10 FlashOff L J Example 2 If the SRN is 24104 the device in theory is connected to adapter port 1 shown as A2 on the screen The device however has an SSA address of 04 That address is higher than the highest address that is displayed for adapter port 1 The device is therefore the IBM SerialRAID Adapter 003 From step 002 The problem is in the SSA link between the device that you identified in Step 002 on page 2323 2 and the device that is on the same adapter port P but whose SSA address has a value of 1 less than AA AA 1 For example in Step 002 on page 2323
46. he Device When Service Aids Are Available When the service aids are available use the Identify function to find the correct disk drive see The Identify Function on page 37 If you want to find a device that does not have a Check light for example an adapter you can either use the Identify function to identify devices that are next to the adapter on the SSA link or use the procedure described in Finding the Device When No Service Aids Are Available Finding the Device When No Service Aids Are Available 38 When no service aids are available you can find the device by using the port P and SSA address AA values that are provided by some service request numbers SRNs Examples of these SRNs are 43PAA 44PAA and 45PAA The port P value can be a number 0 through 3 It indicates the port connector on the SSA adapter 0 Connector A1 1 Connector A2 2 Connector B1 3 Connector B2 The AA value is the decimal SSA address value It indicates the position of the device that you are trying to find counted a ong the SSA loop Use the port value to locate the relevant connector on the SSA RAID Adapter then follow the SSA cable to the first real device Include other adapters as real devices if they are in the same SSA link Do not include dummy devices The first device that you reach represents SSA address count 0 Continue to follow the SSA links from device to device increasing the SSA address count by 1 for each dev
47. he adapter list and select the appropriate adapter select System Resources from the adapter menu Select the failing array Select View Members Using the RSM configurator just selecting the array shows all members Select the failing disk drive Note all the Resource Nnumbers that are in the array Ask the user to create a backup of all the data that is contained in this array All the data should be accessible without error Ask the user to delete the array Run nonconcurrent diagnostics to each of the disk drives that you noted previously DO THE DIAGNOSTICS FAIL WHEN RUN TO ANY PARTICULAR DISK DRIVE Yes No 061 Go to Step 063 on page 2324 14 062 Step 062 continues MAPs 2324 13 MAP 2324 continued 062 continued Exchange the failing disk drive for a new one see Exchanging Disk Drives on page 19 Go to Step 090 on page 2324 18 to add the disk drive to the group of disk drives that are available for use by the RAID manager From step 061 Run the Certify service aid see Certify Disk on page 35 to the disk drives that you noted previously DID THE CERTIFY SERVICE AID FAIL WHEN RUN TO ANY PARTICULAR DISK DRIVE Yes No 064 Ask the user to recreate the array Go to Step 069 on page 2324 15 Run the Format service aid see Format Disk on page 34 to the disk drive Run the Certify service a
48. he arrow keys to scroll the contents of the window if necessary to ensure that you check all the attributes Press Select to set the attributes When you set the attributes the list of array members initially blank appears in a new window To select the disk drives for the array 1 2 Press Insert A list of candidate disk drives is displayed Candidates are Free Resources that are suitable for insertion into an array with the given attributes Select the disk drive that is to be included in the array The previous window reappears now showing the selected disk drive as a member of the array Repeat steps 1 through 3 for each disk drive that you want to add to the array Maintenance Tasks 45 5 When you have selected all the disk drives required create the array by pressing Esc and follow the prompt to confirm the creation of the array The screen that is displayed in step 3 on page 45 reappears showing the new array in the list You can return to the Main menu by repeatedly pressing Esc 6 The array that you have created is in the free state You must now attach the array to your system Go to Attaching a Resource to the System on page 47 46 IBM SerialRAID Adapter Maintenance Information Attaching a Resource to the System 1 2 Start the DOS Configurator and select SSA Adapter List from the main menu Select the appropriate adapter then from the Adapter Menu select System Resources A list
49. ialRAID Adapter or between two devices If you are not familiar with SSA loops read the information relating to SSA links strings and loops contained in the BM SerialRAID Adapter Installation and User s Guide Attention It is not necessary to turn off the system unit when servicing the SSA loop unless you have to turn it off for some other reason Unit power cables and external SSA cables that connect the devices to the system can be disconnected while that system is running 001 ARE THE SSA SERVICE AIDS AVAILABLE Yes No 002 Go to Step 004 003 Go to Step 007 004 From step 002 ARE ANY LINK STATUS READY LIGHTS FLASHING ON THIS SSA LOOP Yes No 005 Note the PAA that is the last three digits of the SRN Go to Finding the Physical Location of a Device on page 38 006 Go to SSA Link Errors on page 15 007 From step 003 Using the DOS Configurator select select SSA Adapter List fron the main menu Select the required adapter from the SSA Adapter List Step 007 continues MAPs 2320 1 MAP 2320 continued 007 continued Select Disk Service Aids from the Adapter menu The Disk Service Aids window is displayed ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port A1 UI
50. ice until you reach the device that is indicated in the SRN IBM SerialRAID Adapter Maintenance Information The Event Error Logger The adapter software includes an Event Error Logger This is automatically loaded into the system during the installation of the adapter software and afterward at each power on operation The event error logger collects information about SSA errors and can indicate when service action is required Error logging is only accessible using the RSM configurator on the Adapter List page Functions available are Analyze SSA Event Log View SSA Event Log Stop SSA Event Logging Obtain a summary of event log entries Modify SSA Event Logger Time Out Analyze SSA Event Log This function checks the event log and displays those entries that require some service activity to be done Not all entries in the log will require service action to be taken Some errors may have a severity below the level collected by the Analyze function and are therefore not displayed In other cases the error might be related to operational procedures that do not call for any service action Service Actions are indicated by service request numbers SRNs see Service Request Numbers SRNs on page 3 Attention If you need to perform service actions always go first to MAP 2010 START on page 2010 1 View SSA Event Log This function displays the complete contents of the Event Error Log Stop SSA Event Loggi
51. ice Aids and Other Utilities 33 Format Disk Attention Formatting a disk drive destroys all the data on that disk drive Use this function only when instructed to do so by the service procedures To Format Using the DOS Configurator 1 Start the DOS Configurator see Accessing Service Aids from the DOS Configurator on page 29 and select SSA Adapter List 2 Select the required adapter from the list then from the Adapter Menu select Disk Service Aids The Disk Service Aids window is displayed ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port Al UIDXxxxx UIDyxxxx UID3xxxx UIDAxxxx Port A2 Port B1 No disks Port B2 ESCAPE Exit ENTER Select Fl Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn F10 FlashOff Sn 3 Select the disk drive that you want to format 4 f you are not sure of the identification of the drive use the Identify function to get a positive physical identification see The Identify Function on page 37 You can further ensure that you have selected the correct disk drive by verifying that the serial number on the disk drive is the same as that displayed on the screen 5 When you are sure that you have selected the correct disk drive press F2 Format A prompt to confirm this is displayed 34 IBM SerialR
52. id to the disk drive again Go to Step 066 066 From step 065 DID THE CERTIFY SERVICE AID FAIL AGAIN Yes No 067 Ask the user to recreate the array Go to Step 069 on page 2324 15 068 Exchange the failing disk drive for a new one see Exchanging Disk Drives on page 19 Go to Step 090 on page 2324 18 to add the disk drive to the group of disk drives that are available for use by the RAID manager 2324 14 IBM SerialRAID Adapter Maintenance Information r RAID Checkout You are now starting the RAID checkout procedure 069 From MAP 2410 step 006 on page 2410 2 From steps 008 026 029 064 and 067 Using the DOS Configurator open the adapter list and select the appropriate adapter From the adapter menu select Rejected Disks Using the RSM configurator go to the Logical View and select Rejected ARE ANY DISK DRIVES LISTED Yes No 070 Go to Step 075 on page 2324 16 071 Run nonconcurrent diagnostics to all the disk drives that are listed as rejected Run the Certify service aid see Certify Disk on page 35 to all the rejected disk drives Go to Step 072 072 From steps 017 and 071 IS ANY DISK DRIVE FAILING Yes No 073 Go to Step 075 on page 2324 16 Note A disk drive that is listed as rejected is not necessarily failing For example the ar
53. k drive for a new one see Exchanging Disk Drives on page 19 Go to Step 090 on page 2324 18 to add the disk drives to the group of disk drives that are available for use by the RAID manager Note A disk drive that is listed as rejected is not necessarily failing For example the array might have rejected the disk drive because a power problem or an SSA link problem caused that drive to become temporarily unavailable Under such conditions the disk drive can be reused From step 032 DOES THE DISK SERVICE AID INDICATE AN OPEN LOOP Yes No 036 Go to Step 038 037 Go to MAP 2320 SSA Link on page 2320 1 038 From steps 036 and 046 Step 038 continues 2324 8 IBM SerialRAID Adapter Maintenance Information 038 continued DOES ANY SSA DISK DRIVE HAVE ITS CHECK LIGHT ON Yes No 039 The disk drive might have been removed from the subsystem Reinstall the removed drive or select a new disk drive for addition to the array Do the actions described in Adding a Disk Drive to an Array on page 44 Referring to the displayed instructions select a disk from the list of array candidate disk drives and add that disk drive to the array that is in the Degraded state The array changes its state to the Good state and parity is rebuilt 040 Exchange the failed disk drive for a new one see Exchanging Disk Drives on page 19
54. l duplex over point to point copper cables up to 25 meters long SSA uses an industry standard interface based on SCSI 2 commands queuing model status and sense bytes SSA Loop B Port 2 SSA Loop A Port 2 B SSA Loop B Port 1 B SSA Loop A Port 1 Q Internal O Connectors E a eee 2 p gt P cm Fast Write Cache card P Sk AED ep GRD Lights The four SSA connectors on the adapter card are arranged in two pairs connectors A1 and A2 are one pair B1 and B2 are the other Next to each pair of connectors is a light that functions as follows ON continuously Power is turned on to the adapter and both ports for that loop are operational that is the devices in the loop have power turned on are connected correctly to the adapter and are operational Copyright IBM Corp 1998 1 Flashing continuously One of the ports is not operational This condition occurs if the cable to the port is not connected correctly or if the device in the loop connected next to the adapter is not operational e Off Both ports are non operational General Information 2 For general information regarding the IBM SerialRAID Adapter RAID technology and SSA loops see the BM SerialRAID Adapter Installation and User s Guide The IBM SerialRAID Adapter also contains array management software that provides RAID 5 functions to control the arrays of the RAID system An array can have fr
55. les onto the original adapter card Reinstall the original adapter card 42200 None Description Other adapters on the SSA loop are using levels of microcode that are not compatible Action Install the latest level of microcode on all other adapters in this SSA loop First refer to Software and Microcode Errors on page 12 and if necessary Download Microcode Function on page 37 Service Request Numbers SRNs 5 SRN FRU List Problem 42500 Fast Write Cache Card 98 Description The Fast Write Cache Card has failed Exchanging the Fast Write Cache Action Card on page 23 i E Exchange the Cache Card for a new one SSA Adapter Card 2 Installation xonang and User Guide 2 Switch on power to the using system 3 New error codes are produced if the original cache card contained data that was not moved to a disk drive Run diagnostics on the adapter and if a SRN is produced do the actions for that SRN 42510 None Description Not enough DRAM available to run the fast write 42515 Fast write Cache Card 90 Exchanging the Fast Write Cache Card on page 23 SSA adapter card 10 using system Installation and Users Guide cache operation Action 1 Start the using system service aids 2 Select Display or Change Configuration or Vital Product Data VPD 3 Select Display Vital Product Data 4 Find the VPD for the SSA adapter that is logging the error 5 Note the DR
56. me data might not be accessible When the backup has been created ask the user to delete the array Run nonconcurrent diagnostics to each of the disk drives that you noted previously DO THE DIAGNOSTICS FAIL WHEN THEY ARE RUN TO A PARTICULAR DISK DRIVE Yes No 023 Go to Step 025 024 Exchange the failing disk drive for a new one see Exchanging Disk Drives on page 19 Go to Step 090 on page 2324 18 to add the disk drive to the group of disk drives that are available for use by the RAID manager From step 023 Run the Certify service aid see Certify Disk on page 35 to each of the disk drives that you noted previously DID THE CERTIFY SERVICE AID FAIL WHEN IT WAS RUN TO A PARTICULAR DISK DRIVE Yes No 026 Ask the user to recreate the array Go to Step 069 on page 2324 15 027 Step 027 continues 2324 6 IBM SerialRAID Adapter Maintenance Information 027 continued Run the Format service aid see Format Disk on page 34 to the disk drive Run the Certify service aid again to the disk drive Go to Step 028 028 From step 027 DID THE CERTIFY SERVICE AID FAIL AGAIN Yes No 029 Ask the user to recreate the array Go to Step 069 on page 2324 15 030 Exchange the failing disk drive for a new one see Exchanging Disk Drives on page 19 Go to Step 090 on
57. move the adapter from the system unit Release the clips by carefully pulling them past the ends of the DRAM H Rotate the DRAM away from the adapter card Pull the DRAM out from the socket Pak on A Module 1 22 IBM SerialRAID Adapter Maintenance Information Installing a DRAM 1 Ensure that the DRAM to be installed is the correct type 2 Insert the DRAM into the keyed socket 3 Press the DRAM into the socket then rotate the DRAM until the clips Ell click into place 4 Reinstall the adapter into the system unit see the service information for the system unit 5 Turn on the power to the system 6 Start up the system Exchanging the Fast Write Cache Card The following procedures explain how to remove and replace the Fast Write Cache card Removing the Cache Card Attention Adapter cards contain parts that are electrostatic discharge ESD sensitive Use the tools and procedures defined by your organization to protect such parts The Fast Write Cache might contain customer data 1 Shut down the operating system 2 Remove power from the system 3 Remove the adapter from the using system Removing and Replacing FRUs 23 Figure 1 The SSA Fast Write Card Installed on an IBM SerialRAID Adapter 4 Refer to Figure 2 24 IBM SerialRAID Adapter Maintenance Information Figure 2 Releasing the Fast Write Cache Card 5
58. n Status of Light Meaning Off Both SSA links are inactive Permanently on Both SSA links are active Slow flash Only one SSA link is active two seconds on two seconds off If you need more information about the lights see For adapter lights Introducing the IBM SerialRAID Adapter on page 1 in this book For other lights the service information for the device that contains the lights Locating a Broken Loop Using the RSM configurator go to the Physical View of the selected adapter and look for the symbol Break This indicates a broken SSA loop Using the DOS configurator you can access the disk service aids to show the SSA loop that is broken CONFIG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port A1 UIDXxxxxx UIDyxxxx UID3xxxx UIDAxxxx UID5xxxx Port A2 Port Bl No disks Port B2 lt ESCAPE gt Exit lt ENTER gt Select lt F1 gt Help lt F2 gt Format lt F3 gt Certify lt F4 gt ServiceMode lt F5 gt Diagnostics lt F9 gt FlashOn lt F10 gt FlashOff e L J This example screen shows a break the dotted line in the SSA loop between the second and third disk drives In the condition shown by the display the Ready lights on the second and third disk drives are both flashing SSA Link Errors 17 To help locate these disk drives select the disk drive and press F9 FlashOn
59. nce to or information about IBM products machines and programs programming or services that are not announced in your country Such references or information must not be construed to mean that IBM intends to announce such IBM products programming or services in your country Requests for technical information about IBM products should be made to your IBM Authorized Dealer or your Marketing Representative Copyright International Business Machines Corporation 1998 All rights reserved Note to U S Government Users Documentation related to restricted rights Use duplication or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp Contents About This Supplement V How This Book Is Organized V Related Publications vi Introducing the IBM SerialRAID Adapter 1 General Information 2 Service Request Numbers SRNs _ 3 Displaying SANS 2 2 55 vb up Lan PT dure pube Due Have Gat 3 The SBN Table 2 a RR Ee foa E AC P deme EE 3 Using the SRN Table 3 Software and Microcode Errors 12 SSA Loop Configurations that Are Not Valid 12 Dealing with Fast Write Problems 12 SSA Link Errors sh he ede a Dan EE ea gabe 15
60. ng This function ends the operations of the event error logger To restart the logger either use the icon that is normally in the STARTUP group folder or go to the directory that contains the logger executable file ISSAELOG EXE and run it Modify Event Logger Time Out This function enables you to set a longer time for the event logger to perform the analyze and dump functions A heavily loaded system might cause a time out to occur if the time setting is too short Error Summary This function is available from the Ctrl File button It displays a summary of the error types in tabular form Service Aids and Other Utilities 39 40 IBM SerialRAID Adapter Maintenance Information Maintenance Tasks This section describes a number of tasks called from the MAPs during maintenance of the IBM SerialRAID Adapter that involve running the configurator utilities There are two configurator utilities provided with the IBM SerialRAID Adapter both of which provide access to disk service aids in addition to the procedures for setting the configuration The DOS configurator This is on a self contained bootable diskette provided with the IBM SerialRAID Adapter It is used to configure an adapter on the local server in situations where the operating system is not loaded or running on the server The Remote Systems Management RSM configurator This runs through an internet browser interface and allows the IBM SerialRAID Adapter to be
61. om 3 to 16 member disk drives and is handled as one large disk drive by the operating system The array management software translates requests to the single large disk into requests to the individual member disk drives Configuration software is available that allows the user to define which disk drives in the loop if any are to be included in an array Up to three adapters can be present in one system unit For performance reasons it is recommended that they are all placed on the same bus A module on the IBM SerialRAID Adapter contains a lithium battery CAUTION A lithium battery can cause fire explosion or a severe burn Do not recharge disassemble heat above 100 C 212 F solder directly to the cell incinerate or expose cell contents to water Keep away from children Replace only with the part number specified with your system Use of another battery might present a risk of fire or explosion The battery connector is polarized do not try to reverse the polarity Dispose of the battery according to local regulations IBM SerialRAID Adapter Maintenance Information Service Request Numbers SRNs Service request numbers SRNs are generated by the error logging facility and by the diagnostics SRNs help you to identify the cause of a problem the failing field replaceable units FRUs and the service actions that might be needed to solve the problem Displaying SRNs To see the SRNs run the Remote Systems Managem
62. onfigurator utilities that are called during the maintenance analysis procedures MAPs Maintenance Analysis Procedures MAPs on page 49 provides maintenance analysis procedures for the IBM SerialRAID Adapter m Important This manual is intended for trained service personnel who are familiar with IBM PC Server products Before servicing an IBM product be sure to review Safety Information in the product documentation Copyright IBM Corp 1998 V Related Publications Other manuals that you might find useful are IBM SerialRAID Adapter Installation and User s Guide S33 3283 00 IBM SerialRAID Adapter Technical Reference SA33 3275 01 For more information contact IBM or your IBM Authorized Dealer Vi IBM SerialRAID Adapter Maintenance Information Introducing the IBM SerialRAID Adapter The IBM SerialRAID Adapter is a Peripheral Component Interconnect PCI adapter that serves as the interface between systems based on PCI architecture and devices that use Serial Storage Architecture SSA The adapter has four ports which can be connected in pairs to drive two SSA loops Each loop can contain a maximum of 48 disk drives Two adapters each one located in a different PC Server can drive the same SSA loop This arrangement is referred to as a Cluster Configuration See the IBM SerialRAID Adapter Installation and User s Guide for more details The four SSA ports on the adapter can operate at 20MB s ful
63. page 2320 5 015 Use the Identify function as instructed on the screen to find the failing disk drive See Finding the Physical Location of a Device on page 38 if you need more information about finding the disk drive Exchange the disk drive for a new one see Exchanging Disk Drives on page 19 Go to MAP 2410 SSA Repair Verification on page 2410 1 to verify the repair Step 016 continues 2320 4 IBM SerialRAID Adapter Maintenance Information 016 continued From step 014 Observe the list of disk drives on the screen A dotted line shows that a link in one of the loops is broken If two dotted lines are displayed two links are broken one in each loop In the example shown here a break has occurred between the fourth and the fifth disk drive On the RSM configurator this is shown as a red line in the Physical View with the added text Break i ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port Al UIDxxxxx UIDyxxxx UID3xxxx UIDAxxxx UID5xxxx Port A2 Port Bl No disks Port B2 lt ESCAPE gt Exit lt ENTER gt Select lt F1 gt Help lt F2 gt Format lt F3 gt Certify lt F4 gt ServiceMode lt F5 gt Diagnostics lt F9 gt FlashOn lt F10 gt FlashOff IS A LINK BROKEN BETWEEN TWO DISK DRIVES Yes No 017 No troubl
64. page 2324 18 to add the disk drive to the group of disk drives that are available for use by the RAID manager 031 From step 010 An array is in the Degraded state if one member disk drive of the array is missing and a write command has been sent to that array When an array is in the Degraded state its data is not protected Using the SSA Configurator and Service Aids Utility select the appropriate adapter then from the adapter menu select Rejected Disks Using the RSM configurator go to the Logical View and select Rejected ARE ANY DISK DRIVES LISTED Yes No 032 A disk drive has not been detected by the adapter Go to Step 035 on page 2324 8 Step 033 continues MAPs 2324 7 MAP 2324 continued 033 continued Run nonconcurrent diagnostics to all the disk drives that are listed as rejected Run the Certify service aid see Certify Disk on page 35 to all the disk drives that are listed as rejected If problems occur on any disk drive go to Step 034 otherwise continue with this procedure Do the actions described in Adding a Disk Drive to an Array on page 44 Referring to the displayed instructions select a disk from the list of array candidate disk drives and add that disk drive to the array that is in the Degraded state The array changes its state to the Good state and parity is rebuilt 034 From step 033 Exchange the dis
65. pter menu ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port A1 UIDXxxxxx UIDyxxxx UID3xxxx UIDAxxxx Port A2 Port B1 No disks Port B2 ESCAPE Exit ENTER Select F1 Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn lt F10 gt FlashOff L J Note On the Disk Service Aids screen each adapter port is identified by the number of its related connector on the adapter card Adapter port 0 is identified as A1 Adapter port 1 is identified as A2 Step 001 continues MAPs 2323 1 MAP 2323 continued 2323 2 001 continued Adapter port 2 is identified as B1 Adapter port 3 is identified as B2 SRNs 21000 through 29000 include the adapter port number 0 3 Go to Step 002 From step 001 Observe the SRN that sent you to this MAP It is in the series 21PAA through 29PAA where P is the number of the adapter port and AA is the SSA address of the device Note the value of PAA in the SRN For example If the SRN is 24002 PAA 002 If the SRN is 24104 PAA 104 Observe the screen and identify the physical device that is represented by PAA in the SRN Note If the SSA address AA in the SRN is higher than the highest SSA address that is displayed for the adapter port P that address is the address of t
66. ray might have rejected the disk drive because a power problem or an SSA link problem caused that drive to become temporarily unavailable Under such conditions the disk drive can be reused 074 Exchange the failing disk drive for a new one see Exchanging Disk Drives on page 19 Step 074 continues MAPs 2324 15 MAP 2324 continued 074 continued Go to Step 090 on page 2324 18 to add the disk drive to the group of disk drives that are available for use by the RAID manager 075 From steps 070 and 073 Using the DOS Configurator open the adapter list and select the appropriate adapter Select RAID 5 Arrays Select each array type in turn ARE ANY ARRAYS LISTED WITH A STATUS OTHER THAN GOOD OR REBUILDING Yes No 076 Go to Step 078 077 Go to Step 001 on page 2324 2 078 From step 076 Using the SSA Configurator and Service Aids Utility open the adapter list and select the appropriate adapter From the adapter menu select System Resources Using the RSM configurator go to the Logical View then select RAIDx All the arrays of this type are shown Select the arrays one at a time and check whether any array has one or more invalid data strips one or more unbuilt parity strides or one or more unbuilt component strides DOES ANY ARRAY HAVE ONE OR MORE INVALID DATA STRIPS ONE OR MORE UNBUILT PARITY STRIDES OR ONE OR MORE UNBUILT CO
67. rialRAID Adapter on page 22 Action Exchange the FRU for a new FRU 40016 16 MB DRAM module 0 100 Description A 16 MB DRAM in adapter card module 0 has failed Action Exchange the FRU for a new FRU SRN FRU List Problem 40032 32 MB DRAM module 0 100 Description A 32 MB DRAM in adapter card module 0 has Exchanging DRAMs on the IBM failed SerialRAID Adapter on page 22 Action Exchange the FRU for a new FRU 40064 64 MB DRAM module 0 100 Description A 64 MB DRAM in adapter card module 0 has Exchanging DRAMs on the IBM failed SerialRAID Adapter on page 22 Action Exchange the FRU for a new FRU 40128 128 MB DRAM module 0 100 Description A 128 MB DRAM in adapter card module 0 has Exchanging DRAMs on the IBM failed SerialRAID Adapter on page 22 Action Exchange the FRU for a new FRU 41004 4 MB DRAM module 1 100 Description A 4 MB DRAM in adapter card module 1 has failed Exchanging DRAMs on the IBM Action Exchange the FRU for a new FRU SerialRAID Adapter on page 22 41008 8 MB DRAM module 1 100 Description An 8 MB DRAM in adapter card module 1 has Exchanging DRAMs on the IBM failed SerialRAID Adapter on page 22 Action Exchange the FRU for a new FRU 41016 16 MB DRAM module 1 100 Description A 16 MB DRAM in adapter card module 1 has Exchanging DRAMs on the IBM failed SerialRAID Adapter on page 22 Action E
68. rive has been removed from the subsystem e An SSA link has failed A power failure has occurred Go to MAP 2010 START on page 2010 1 49100 None Description An array is in the Exposed state because a disk drive is not available to the array Action A disk drive can become not available for several reasons The disk drive has failed The disk drive has been removed from the subsystem An SSA link has failed A power failure has occurred Go to MAP 2010 START on page 2010 1 49500 None Description No hot spare disk drives are available for an array that is configured for hot spare disk drives Action Go to MAP 2010 START on page 2010 1 10 IBM SerialRAID Adapter Maintenance Information SRN FRU List Problem 49700 None Description The parity for the array is not complete Action Go to MAP 2010 START on page 2010 1 50000 SSA adapter card 100 Description The SSA adapter failed to respond to the device driver Action Exchange the FRU for a new FRU 50001 SSA adapter card 100 Description A data parity error has occurred Action Exchange the FRU for a new FRU 50002 SSA adapter card 100 Description An SSA adapter DMA error has occurred Action Exchange the FRU for a new FRU 50004 SSA adapter card 100 Description Channel check Action Exchange the FRU for a new FRU 50005 SSA adapt
69. rom the Exposed state and parity is rebuilt 044 From step 043 Exchange the disk drive for a new drive see Exchanging Disk Drives on page 19 Go to Step 090 on page 2324 18 to add the disk drives to the group of disk drives that are available for use by the RAID manager Note A disk drive that is listed as rejected is not necessarily defective For example the array might have rejected the disk drive because a power problem or an SSA link problem caused that drive to become temporarily unavailable Under such conditions the disk drive can be reused 045 From step 042 DOES THE DISK SERVICE AID INDICATE AN OPEN LOOP Yes No 046 Go to Step 038 on page 2324 8 047 Go to MAP 2320 SSA Link on page 2320 1 048 From step 003 No spare disk drives are available for an array that is configured for hot spare disk drives If the subsystem contains disk drives that have failed repair those disk drives or exchange them for new disk drives see Exchanging Disk Drives on page 19 Step 048 continues 2324 10 IBM SerialRAID Adapter Maintenance Information 048 continued Using the SSA Configurator and Service Aids Utility select the adapter against which SRN 49500 was logged Select Spare Disk No spare disk drives are listed Using the Insert function try to make a spare disk drive Use the default block size ARE ANY CANDID
70. rst read the introductory information given in the BM SerialRAID Adapter Installation and User s Guide Accessing Service Aids from the DOS Configurator The service aids provided with the DOS Configurator are accessed from the menu item Disk Service Aids on the adapter menu as follows 1 Start the DOS Configurator by booting from the diskette The Main menu is displayed Copyright IBM Corp 1998 29 ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu SSA Adapter List Dump Configuration Details Service Aids About ESCAPE Exit ENTER Select Fl Help 2 From the main menu select SSA Adapter List 3 Select the appropriate adapter from the list 4 From the adapter menu select Disk Service Aids The Disk Service Aids window is displayed Note The menu item Service Aids on the main menu opens a Help panel that points you to the adapter menu where the Disk Service Aids are accessed Accessing Service Aids from the RSM Configurator The service aids provided with the RSM configurator are accessed from the Disk View page as follows 1 Start the RSM Configurator Check with the user how access to the RSM is set up or consult the Readme file provided with the adapter to obtain the URL 2 The first page to be displayed is the Adapter List On this page select the adapter you want This opens the Adapter View page for the selected adapter
71. scribed in Deleting a Resource from the System Resource List on page 43 Select the array that is in the Offline state and delete it That array is now a free resource Do the actions that are described in Removing a Disk Drive from an Array on page 43 and remove all the disk drives from the array You can now use those disk drives as free resources Locate and repair all failed disk drives and make those disk drives available for the creation of a new array Go to Step 015 015 From step 014 Using the DOS Configurator select the appropriate adapter then from the adapter menu select Rejected Disks Using the RSM configurator go to the Logical View and select Rejected ARE ANY DISK DRIVES LISTED Yes No 016 Ask the user to delete and recreate the array that is in the Offline state 017 Run nonconcurrent diagnostics to all the disk drives that are listed as rejected Step 017 continues IBM SerialRAID Adapter Maintenance Information 017 continued Run the Certify service aid see Certify Disk on page 35 to all the disk drives that are listed as rejected Go to Step 072 on page 2324 15 018 From step 010 An attempt has been made to create a new array but the adapter already has the maximum number of arrays defined Go to Listing or Deleting Records of Old Arrays in the NVRAM on page 43 and delete any arra
72. t exchanged a disk drive or an SSA RAID Adapter you must use the configurator to restore the device to the system If the original problem was not reported by a device run diagnostics to each SSA RAID Adapter in the system unit Run the Fix procedure see Displaying SRNs on page 3 Note If you do not run this service aid the diagnostics might create an SRN for a problem that has already been solved If you have a RAID array and the problem remains go to RAID Checkout at MAP 2324 step 069 on page 2324 15 2410 2 IBM SerialRAID Adapter Maintenance Information Part Number 09L5504 Printed in the United Kingdom 09L5504
73. t passes through it might still be active although the disk drive itself might not be working You must put that disk drive into Service Mode before you remove it from the SSA loop To Set Service Mode with the DOS Configurator 1 2 Start the DOS Configurator see Accessing Service Aids from the DOS Configurator on page 29 and select SSA Adapter List Select the required adapter from the list then from the Adapter Menu select Disk Service Aids The Disk Service Aids window is displayed Service Aids and Other Utilities 31 ISSACFG SSA Configurator and Service Aids yymmdd DOS Version Main Menu Disk Service Aids Link SSA UID Status Port A1 UIDxxxxx UIDyxxxx UID3xxxx UIDAxxxx Port A2 Port B1 No disks Port B2 ESCAPE Exit ENTER Select Fl Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn F10 FlashOff J 3 From the Disk Service Aids window select the disk drive that you want to put into Service Mode Notes a The Link column shows the connectors of the IBM SerialRAID Adapter to which the loop is connected The SSA UID column shows the unique identifier of each disk drive A dashed line in the SSA UID column shows that the SSA loop is broken On the screen shown here the loop is broken between the third and fourth disk drives The Status column shows the status of the disk drive for e
74. the following Service Request Numbers SRNs 46000 47000 47500 49000 49100 49500 49700 DO YOU HAVE SRN 49500 Yes No 002 Run concurrent diagnostics on the IBM SerialRAID Adapters Go to Step 004 No hot spare disk drives are available Go to Step 048 on page 2324 10 004 From step 002 DID THE DIAGNOSTICS GIVE YOU SRN 46000 47000 47500 49000 49100 or 49700 Yes No 005 Go to Step 007 006 Go to Step 010 on page 2324 3 007 From step 005 DID THE DIAGNOSTICS GIVE YOU ANY OTHER SRN Yes No 008 Go to Step 069 on page 2324 15 009 Step 009 continues 2324 2 IBM SerialRAID Adapter Maintenance Information 009 continued Solve the problems that caused the SRN Return to Step 001 on page 2324 2 010 From step 006 Find your SRN in the following table then do the appropriate actions Note If you still do not have any of these SRNs you are in the wrong MAP SRN Cause Action 46000 An array is in the Offline state Go to Step 011 47000 You have more than the maximum Go to Step 018 on page 2324 5 number of arrays allowed 47500 A partial loss of data has occurred Go to Step 019 on page 2324 5 49000 An array is in the Degraded state Go to Step 031 on page 2324 7 49100 An array is in the Exposed state Go to Step 041 on page 2324 9 49700 The
75. tinued 051 continued Start the DOS Configurator From the Main menu select SSA Adapter List Select the required adapter from the SSA Adapter List Check whether a rebuild operation is running on any array IS A REBUILD OPERATION RUNNING ON ANY ARRAY Yes No 052 Go to Step 057 053 Wait for the rebuild to complete Rerun concurrent diagnostics to the adapter Go to Step 054 054 From step 053 IS THE PROBLEM SOLVED Yes No 055 Go to Step 057 056 No further action is needed 057 From steps 052 and 055 Start the DOS Configurator Open the adapter list and select the appropriate adapter Select System Resources from the adapter menu Select the arrays one at a time and check whether any array has one or more unbuilt parity strides or one or more unbuilt component strides Step 057 continues 2324 12 IBM SerialRAID Adapter Maintenance Information 057 continued DOES ANY ARRAY HAVE ONE OR MORE UNBUILT PARITY STRIDES OR ONE OR MORE UNBUILT COMPONENT STRIDES Yes No 058 The error might have occurred because a hot spare drive was being started and rebuilt Check whether any failed disk drives are present in the array 059 Note the array name of the failing array Go to Step 060 060 From step 059 Using the DOS Configurator open t
76. to the array Modifying Attributes of Resources 44 1 Start the DOS Configurator 2 From the Main menu select SSA Adapter List 3 Select the required adapter from the list 4 From the Adapter menu select RAID 5 Resources 5 Select the array whose attributes you want to change IBM SerialRAID Adapter Maintenance Information 6 Press F8 Modify Attributes The screen that is displayed allows you to modify the attributes for the array When you press Enter the cursor moves to the next changeable attribute in the list When you press Enter on the final changeable attribute a list of components for the array is displayed If you need information about the attributes press F1 for a detailed description of each one Creating an Array To create an array 1 2 Start the DOS Configurator From the Main menu select SSA Adapter List and from that list select the adapter that is to control the array Select RAID 5 array You can scroll the contents of the window by using the arrow keys A list of the arrays of this type that are already controlled by this adapter appears in a new window To add the new array press Insert A window opens showing the attributes for the type of array selected Type a Resource Name for the new array The default values for the attributes are shown but you can change these values by overtyping them The Help screen provides details of the values that are allowed Use t
77. turned on the system 1 Turn off the system 2 Review the configuration that you are trying to make and determine why that configuration is not valid 3 Correct your configuration by reconfiguring the SSA cables or by removing the excess devices or adapters from the loop 4 Turn on the system If the SRN occurred because additional devices or adapters were added to a working SSA loop 1 Remove the additional devices or adapters that are causing the problem and put the loop back into its original working configuration Note t is important that you do these actions because they enable the configuration code to reset itself from the effects of the error 2 Review the configuration that you are trying to make and determine why that configuration is not valid 3 Correct your configuration by reconfiguring the SSA cables or by removing the excess devices or adapters from the loop Dealing with Fast Write Problems Fast Write problems are indicated by Service Request Numbers SRNs in the series 425xx 12 IBM SerialRAID Adapter Maintenance Information The procedure using the RSM configurator for removing the Fast Write function from a resource when advised to do this is as follows 1 Start the RSM Configurator and select all the resources that have Fast Write enabled 2 Perform the following actions on each resource in turn a Go to the Resource View page for each resource you want to change b Select Delete F
78. turns on the power to the system unit 090 From steps 024 030 034 040 044 062 068 and 074 HAS A FAILED DISK DRIVE BEEN EXCHANGED FOR A NEW DISK DRIVE Yes No If you have repaired a power or cabling fault that caused the disk drive to be missing from the system the drive might now be in a rejected state You must change that disk drive into a usable disk drive Using the DOS Configurator open the adapter list and select the appropriate adapter from the adapter menu select Rejected Disks Using the RSM configurator go to the Logical View and select Rejected Delete the disk drive that has been restored to the system This action changes the disk drive to a free resource Ask the customer to choose how the disk drive is to be configured Hotspare e Attached resource Remain as a free resource 092 If you exchanged the disk drive by using the procedure described in Exchanging Disk Drives on page 19 the new disk drive is identified as a new resource Step 092 continues 2324 18 IBM SerialRAID Adapter Maintenance Information 092 continued Do the procedure described in Converting a New Resource to a Free Resource on page 41 Change the new disk drive to a free resource Ask the customer to choose how the disk drive is to be configured Hot spare Attached resource Remain as a free resource MAPs 2324 19 Notes
79. u have run diagnostics to the SSA attachment If this SRN has occurred because you have run diagnostics on some other device see the service information for that device Description A command or parameter that has been sent or received is not valid This problem is caused either by the SSA adapter or by an error in the microcode Action Go to Software and Microcode Errors on page 12 before exchanging the FRU Service Request Numbers SRNs 11 Software and Microcode Errors Some SRNs indicate that a problem might have been caused by a software error or by a microcode error If you have one of these SRNs do the following actions 1 Make a note of the contents of the error log for the device that has the problem 2 Go to the system service aids and select Display Vital Product Data to display the VPD of the failing system Make a note of the VPD for all the SSA adapters and disk drives 3 Report the problem to your support center The center can tell you whether you have a known problem and can if necessary provide you with a correction for the software or microcode SSA Loop Configurations that Are Not Valid Note This section is related to SRN 48000 SRN 48000 shows that the SSA loop contains more devices or adapters than are allowed The maximum numbers allowed depend on the adapter Refer to the BM SerialRAID Adapter Installation and User s Guide for details If the SRN occurred when you or the customer
80. value 1 Ask the customer to disable Fast Write for Each device for which the Fast Write option is offline e All other devices that are connected to the failing adapter and have Fast Write enabled For details of how to disable Fast Write see Dealing with Fast Write Problems on page 12 2 Ask the customer to re enable Fast Write for the devices that are attached to the new Fast Write Cache Card 42526 SSA adapter card 100 Installation and User Guide Description This adapter card does not provide support for the Fast Write Cache Action Install the correct SSA adapter if applicable 42527 None Description A dormant fast write cache entry exists Action The fast write cache contains unsynchronized data for a disk drive that is no longer available If possible reconnect the disk drive to the adapter to enable the data to be synchronized If you cannot reconnect the disk drive for example because the disk drive has failed the user should delete the dormant fast write cache entry Although the resource is no longer available the RSM configurator will show the resource Go to the Resource View page of the RSM and select Detach or Delete as appropriate 42528 None Description A fast write disk drive has been detected that was previously unsynchronized but has since been configured on a different adapter Action If this disk drive contains data that should be kept return the disk
81. xample Power and Failed 4 Press F4 to set Service Mode Verification information is displayed Notes a b You can select only one disk drive at time If you set Service Mode and the selected disk drive is not in a closed loop or at the end of a string the operation fails and an error message is displayed If the Check light of the disk drive that you have put into Service Mode does not come on and you are not sure of the location of that disk drive use the Identify function to help you find it see The Identify Function on page 37 If necessary you can identify the disk drives that are on each side of the one you are trying to find 32 IBM SerialRAID Adapter Maintenance Information 5 To reset Service Mode press Esc exit from the Disk Service Aids window Note A disk must be in one of the states Free Resource New Resource or Rejected before it can be formatted or put into Service Mode Array members System Resources and Hot Spare disk drives cannot be formatted or put into Service Mode To Set Service Mode With the RSM Configurator 1 9 gm pq Start the RSM Configurator see Accessing Service Aids from the RSM Configurator on page 30 On the Adapter List page select the required adapter On the Adapter View page select the Physical View On the Physical View page select the required disk drive On the Disk View page click on the Service Mode button at the bottom of the page Serv
82. xchange the FRU for a new FRU 41032 32 MB DRAM module 1 100 Description A 32 MB DRAM in adapter card module 1 has Exchanging DRAMs on the IBM failed SerialRAID Adapter on page 22 Action Exchange the FRU for a new FRU 41064 64 MB DRAM module 1 100 Description A 64 MB DRAM in adapter card module 1 has Exchanging DRAMs on the IBM failed SerialRAID Adapter on page 22 Action Exchange the FRU for a new FRU 41128 128 MB DRAM module 1 100 Description A 128 MB DRAM in adapter card module 1 has Exchanging DRAMs on the IBM failed SerialRAID Adapter on page 22 Action Exchange the FRU for a new FRU 42000 SSA adapter card 50 Description The SSA adapter has detected that both DRAM DRAM modules 50 modules are failing Exchanging DRAMs on the IBM Action SerialRAID Adapter on page 22 1 Check whether both DRAM modules are correctly installed on the adapter card Make any necessary corrections 2 If this problem has occurred immediately after an upgrade to the adapter card check whether the correct type of DRAM modules have been installed Make any necessary corrections 3 If the problem remains exchange the adapter card FRU for a new one Do not exchange any DRAM modules yet 4 Install the DRAM modules from the original adapter card onto the new adapter card then install the new adapter card 5 If the problem remains exchange the DRAM modules for new modules 6 Install the new DRAM modu
83. y names that are no longer used dormant 019 From step 010 Attention Part of the data that is on the array has been damaged and cannot be recovered Before any other action is taken the user must recover all the data that is not damaged and create a backup of that data Using the DOS Configurator select SSA Adapter List then select the appropriate adapter from the list On the adapter menu select System Resources Select the arrays one at a time and check whether any array has one or more invalid data strips DOES ANY ARRAY HAVE ONE OR MORE INVALID DATA STRIPS Yes No 020 Review the symptoms Go to MAP 2320 SSA Link on page 2320 1 and start the problem determination procedure again 021 Note the name of the failing array Go to Step 022 022 From step 021 Step 022 continues MAPs 2324 5 MAP 2324 continued 022 continued Using the DOS Configurator and Service Aids Utility select the appropriate adapter then from the adapter menu select System Resources Select the failing array then Select View Members Using the RSM configurator go to the Logical View and select RAIDx then select the appropriate array to see the members Select the failing disk drive and note the Resource Names of the disk drives that are members of the array Ask the user create a backup of all the data from this array So
84. you to remove a disk drive from an array so that you can install a replacement disk drive Use this procedure when you do not have an available online disk drive or there is no spare slot for a replacement disk drive 1 aaron Start the DOS Configurator From the Main Menu select SSA Adapter List then select the required adapter From the Adapter Menu select RAID 5 Resources Select the array from which you want to remove a disk drive Select View Members Select the disk drive that you want to remove If necessary use the Identify function to find the disk drive To start the Identify function press F9 FlashOn the Check light flashes on the selected disk drive To end the Identify function press F10 FlashOff Press F7 Exchange Members Select Blank Reserved The selected disk drive is removed from the array and replaced by a blank virtual disk Physically remove the disk drive see Exchanging a Non Array Disk Drive on page 19 Listing or Deleting Records of Old Arrays in the NVRAM If an array becomes disconnected from the system other than by deleting it a record of that array remains in the non volatile random access memory NVRAM The record Maintenance Tasks 43 must be deleted manually This option allows you to list the names of such arrays and to delete the records of those arrays Note Only 32 NVRAM entries may exist and each RAID 5 array requires an entry Therefore to have 32 RAID 5 arra
85. ys it may be necessary to delete dormant array entries 1 Start the DOS Configurator From the Main Menu select SSA Adapter List then select the required adapter 2 3 From the Adapter Menu select the adapter whose records you are checking 4 Select Non Volatile RAM A list of arrays is displayed 5 An array name that has a status of Dormant is a record of an array that is no longer present and is not recognized by the adapter Press the Delete key to remove the record from the NVRAM Adding a Disk Drive to an Array This procedure allows you to install a replacement disk drive into an array that is running in the Exposed or Degraded state because you have removed a disk drive When you install the replacement disk drive all the data that was contained on the original disk drive is automatically written to the replacement disk drive Note For instructions on how to physically install a disk drive see the unit Hardware Maintenance Manual 1 Start the DOS Configurator From the Main Menu select SSA Adapter List then select the required adapter From the Adapter Menu select RAID 5 Resources Select the array to which you want to add a disk drive Select View Members Select Not Present Blank Slot Press F7 Exchange Members A list of candidate disk drives is displayed Select the disk drive that you want to add to the array O 00 mb 20 206 Re UO 2S Press Enter The selected disk drive is added

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