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Running diagnostics
After you have replaced a component in your system, you should run diagnostic tests on that component.
Your system must be at the LOADER prompt to start diagnostics.
All commands in the diagnostic procedures are issued from the node where the component is being
replaced.
Step 1.
If the node to be serviced is not at the LOADER prompt, reboot the node:
After you issue the command, you should wait until the system stops at the LOADER
node_name
prompt.
Step 2.
At the LOADER prompt, access the special drivers specifically designed for system-level
diagnostics to function properly:
Step 3.
Select Scan System from the displayed menu to enable running the diagnostics tests.
Step 4.
Select Test system from the displayed menu to run diagnostics tests.
Step 5.
Proceed based on the result of the preceding step:
• If the test failed, correct the failure, and then rerun the test.
• If the test reported no failures, select
Completing the replacement process
After you replace the part, you can return the failed part to Lenovo, as described in the RMA instructions
shipped with the kit.Contact technical support at
additional help with the replacement procedure.
Step 1.
Recable the system storage and networking cables, as needed.
Step 2.
Reconnect the power supply.
a.
Open the power cable retainer and plug the power cable into the power supply.
b.
Plug the power cable into the power source.
Step 3.
Return the node to normal operation by giving back its storage from the running node:
failover giveback -ofnode impaired_node_name
Note: This operation need to be performed when the impaired node shows "Waiting for
giveback...".
Step 4.
If automatic giveback was disabled, reenable it:
Replacing the boot media
You must have a USB flash drive, formatted to MBR/FAT32, with the appropriate amount of storage to hold
the image_xxx.tgz
• You must replace the failed component with a replacement FRU component you received from your
provider.
• It is important that you apply the commands in these steps on the correct node:
– The impaired node is the node on which you are performing maintenance.
– The healthy node is the HA partner of the impaired node.
boot_diags
from the menu to reboot the system.
Reboot
Lenovo Data Center Support
storage failover modify -node local -auto-giveback true
system node halt -node
if you need the RMA number or
.
Chapter 4
Hardware replacement procedures
storage
47
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