MAP 0220: Hot-Swap FRU problem resolution

Use this procedure to exchange hot-swappable field replaceable units (FRUs).

Note: The FRU you want to hot plug might have a defect on it that can cause the hot-plug operation to fail. If, after following the hot-plug procedure, you continue to get an error message that indicates that the hot-plug operation has failed, schedule a time for deferred maintenance when the system containing the FRU can be powered off. Then go to MAP 0210: General problem resolution, Step 0210-2 and answer NO to the question Do you want to exchange this FRU as a hot-plug FRU?

Attention: If the FRU is a disk drive or an adapter, ask the system administrator to perform the steps necessary to prepare the device for removal.

Step 0220-1
1. If the system displayed a FRU part number on the screen, use that part number to exchange the FRU.
  If there is no FRU part number displayed on the screen, refer to the SRN listing. Record the SRN source code and the failing function codes in the order listed.
2. Find the failing function codes in the FFC listing, and record the FRU part number and description of each FRU.
3. To determine if the part is hot-swappable, refer to the System FRU locations procedure for the part.
Does this system unit support hot-swapping of the first FRU listed?
NO

Go to MAP 0210: General problem resolution.

YES

Go to Step 0220-2.
Step 0220-2
Is the FRU a hot-swap power supply or fan?
NO

Go to Step 0220-4.

YES

Go to Step 0220-3.
Step 0220-3
Note: Refer to System FRU locations for the part.
1. Remove the old FRU.
2. Install the new FRU.
3. Enter the diag command.
Go to Step 0220-14.
Step 0220-4
Is the FRU a hot-plug PCI adapter?
NO

Go to Step 0220-5.

YES

Go to Step 0220-12.
Step 0220-5
Is the FRU a SCSI hot-plug device?
NO

Go to Step 0220-11.

YES

Go to Step 0220-6.
Step 0220-6
Is the hot-plug drive located within a system unit?
NO

Go to Step 0220-8.

YES

Go to Step 0220-7.
Step 0220-7
Refer to the removal and replacement procedures for your system in System FRU locations .

Go to Step 0220-13.
Step 0220-8
Does the hot-plug drive's enclosure have procedures for removing and replacing SCSI disk drives?
NO

Go to Step 0220-9.

YES

If a hot-plug procedure exists, use that procedure to remove the old hot-plug SCSI disk drive and replace it with a new hot-plug SCSI disk drive. Otherwise, if no hot-plug procedure exists, use the power off procedure to remove the old SCSI disk drive and replace it with a new SCSI disk drive. Go to Step 0220-13.
Step 0220-9
1. Ask the customer to back up the data on the drive that you intend to replace onto another drive.
2. Verify that the disk drive is in the defined state. The amber LED on the hot-plug disk drive should be off.
Is the hot-plug disk drive's amber LED unlit?
NO

Ask the customer to remove the hot-plug disk drive from the operating system configuration (refer the customer to the system management guide for more information).

YES

Go to Step 0220-10.
Step 0220-10
Using the hot-plug task service aid, replace the hot-plug drive using the following procedure:
1. Use the option List the SES Devices to show the configuration of the hot-plug slots. Identify the slot number of the adapter for the FRU you want to replace.
2. Select the option REPLACE/REMOVE a Device Attached to an SES Device.
3. Select the slot which contains the SCSI hot-plug drive you want to replace. Press Enter. You will see a fast blinking green light on the front on the hot-plug drive indicating that it is ready for removal.
  Note: Refer to the "Installing hardware" section of the information; locate the server information that you are servicing and follow the tables to locate the correct removal or replacement procedure.
4. Remove the old hot-plug drive.
5. Install the new hot-plug drive. After the hot-plug drive is in place, press Enter.
6. Press Exit. Wait while configuration is done on the drive, until you see the "hot-plug task" on the service aid menu.
Go to Step 0220-15.
Step 0220-11
Attention: Do not remove functioning disks in a disk array attached to a PCI-X SCSI RAID controller without assistance from your service support structure. A disk array may become degraded or failed if functioning disks are removed and additional problems may be created. If you still need to remove a RAID array disk attached to a PCI-X SCSI RAID controller, use the SCSI and SCSI RAID hot-plug manager.

Using the hot-plug task service aid, replace the hot-plug drive using the hot plug RAID service aid:
Note: The drive you want to replace must be either a SPARE or FAILED drive. Otherwise, the drive would not be listed as an "Identify and remove resources selection" within the RAID HOT-PLUG DEVICES screen. In that case you must ask the customer to put the drive into FAILED state. Refer the customer to the Operating System and Device management in the AIX® library for more information. Ask the customer to back up the data on the drive that you intend to replace.
1. Select the option RAID HOT-PLUG DEVICES within the HOT-PLUG TASK under DIAGNOSTIC SERVICE AIDS.
2. Select the RAID adapter that is connected to the RAID array containing the RAID drive you want to remove, then select COMMIT.
3. Choose the option IDENTIFY in the IDENTIFY AND REMOVE RESOURCES menu.
4. Select the physical disk which you want to remove from the RAID array and press Enter.
5. The disk will go into the IDENTIFY state, indicated by a flashing light on the drive. Verify that it is the physical drive you want to remove, then press Enter.
6. At the IDENTIFY AND REMOVE RESOURCES menu, choose the option REMOVE and press Enter.
7. A list of the physical disks in the system that may be removed will be displayed. If the physical disk you want to remove is listed, select it and press Enter. The physical disk will go into the REMOVE state, as indicated by the LED on the drive. If the physical disk you want to remove is not listed, it is not a SPARE or FAILED drive. Ask the customer to put the drive in the FAILED state before you can proceed to remove it. Refer the customer to the Operating System and Device management in the AIX library for more information.
8. Refer to the service guide for the system unit or enclosure that contains the physical drive for removal and replacement procedures for the following substeps:
  1. Remove the old hot-plug RAID drive.
  2. Install the new hot-plug RAID drive. After the hot-plug drive is in place, press Enter. The drive will exit the REMOVE state, and will go to the NORMAL state after you exit diagnostics.
    Note: There are no elective tests to run on a RAID drive itself under diagnostics (the drives are tested by the RAID adapter).
9. This completes the repair. Return the system to the customer. Ask the customer to add the physical disk drive to the original configuration within the RAID. Refer them to system management guide for more information.
Step 0220-12
1. Remove the old adapter FRU and replace it with the new adapter FRU. Refer to the System FRU locations procedure for the part.
2. Enter the diag command.
3. Go to the FUNCTION SELECTION menu, and select the option Advanced Diagnostics Routines.
4. When the DIAGNOSTIC MODE SELECTION menu displays, select the option System Verification.
5. Go to Step 0220-14.
Step 0220-13
1. If not already running diagnostics, enter the diag command.
  Note: If you are already running service mode diagnostics and have just performed the task Configure Added/Replaced Devices (under the SCSI Hot Swap manager of the Hot Plug Task service aid), you must use the F3 key to return to the DIAGNOSTIC OPERATING INSTRUCTIONS menu before proceeding with the next step, or else the drive might not appear on the resource list.
2. Go to the FUNCTION SELECTION menu, and select the option Advanced Diagnostics Routines.
3. When the DIAGNOSTIC MODE SELECTION menu displays, select the option System Verification.
Does the hot-plug SCSI disk drive you just replaced appear on the resource list?
NO

Verify that you have correctly followed the procedures for replacing hot-plug SCSI disk drives in the system service guide. If the disk drive still does not appear in the resource list, go to MAP 0210: General problem resolution to replace the resource that the hot-plug SCSI disk drive is plugged into.

YES

Go to Step 0220-14.
Step 0220-14
Run the diagnostic test on the FRU you just replaced.

Did the diagnostics run with no trouble found?
NO

Go to Step 0220-15.

YES

Go to Verify a repair. Before returning the system to the customer, if a hot-plug disk has been removed, ask the customer to add the hot-plug disk drive to the operating system configuration. Refer to Operating System and Device Management in the AIX library for more information.
Step 0220-15
1. Use the option Log Repair Action in the TASK SELECTION menu to update the AIX error log. If the repair action was reseating a cable or adapter, select the resource associated with your repair action. If it is not displayed on the resource list, select sysplanar0.
  Note: On systems with a fault indicator LED, this changes the fault indicator LED from the fault state to the normal state.
2. While in diagnostics, go to the FUNCTION SELECTION menu. Select the option Advanced Diagnostics Routines.
3. When the DIAGNOSTIC MODE SELECTION menu displays, select the optionSystem Verification. Run the diagnostic test on the FRU you just replaced, or sysplanar0.
Did the diagnostics run with no trouble found?
NO

Go to Step 0220-16.

YES
If you changed the service processor or network settings, restore the settings to the value they had prior to servicing the system. If you performed service on a PCI RAID subsystem involving changing of the RAID adapter cache card or changing the configuration on RAID disks, ask the customer to run "PCI SCSI disk array manager" using smitty to resolve the PCI SCSI RAID adapter configuration. The following is an example of how the customer would resolve the configuration:
1. At the AIX command line, type smitty pdam.
2. On the PCI SCSI Disk Array Manager screen, select RECOVERY OPTIONS.
3. If a previous configuration exists on the replacement adapter, this must be cleared. Select Clear PCI SCSI RAID Adapter Configuration. Press F3.
4. On the Recovery Options screen, select RESOLVE PCI SCSI RAID ADAPTER CONFIGURATION.
5. On the Resolve PCI SCSI RAID Adapter Configuration screen, select ACCEPT CONFIGURATION on DRIVES.
6. On the PCI SCSI RAID Adapter selection menu, select the adapter that you changed.
7. On the next screen, press Enter.
8. On the "Are You Sure?" selection menu, press Enter to continue.
9. You receive an OK status message when the recovery is complete. If you get a Failed status message, verify that you are preforming recovery on the correct adapter, then do this complete procedure. When you complete the recovery, exit smitty to return to the AIX command line.
Go to Verify a repair.
Step 0220-16
Does the original problem persist?
NO

If a FRU was replaced, run the log repair action service aid under the online diagnostics for the resource that was replaced. If the resource associated with your action is not displayed on the resource list, select sysplanar0. If steps were taken to make the device ready for removal, inform the system administrator of the steps required to return the system to the original state. Go to Verify a repair.

YES

Go to Step 0220-17.
Step 0220-17
Have you exchanged all the FRUs that correspond to the failing function codes?
NO

Go to Step 0220-18.

YES

The SRN did not identify the failing FRU. Schedule a time to run diagnostics in service mode. If the same SRN is reported in service mode, go to MAP 0030: Additional problem determination.
Step 0220-18
Note: Before proceeding, remove the FRU you just replaced and install the original FRU in its place.

Does the system unit support hot-swapping of the next FRU listed?
NO

Go to MAP 0210: General problem resolution.

YES

The SRN did not identify the failing FRU. Schedule a time to run diagnostics in service mode. If the same SRN is reported in service mode, go to Step 0220-14.