2.
Bring the controller online using ThinkSystem System Manager:
◦ From ThinkSystem System Manager:
i.
Select Hardware.
ii.
If the graphic shows the drives, select Show back of shelf.
iii.
Select the controller you want to place online.
iv.
Select Place Online from the context menu, and confirm that you want to perform the
operation.
The system places the controller online.
◦ Alternatively, you can bring the controller back online by using the following CLI commands:
For controller A:
set controller [a] availability=online;
For controller B: set controller [b] availability=online;
Notes:
▪ Execution environment requires setting JAVA_HOME environment variable, and JRE8 or
later.
▪ See
Command Line Interface (CLI) Reference and follow the complete command syntax
for this operation.
3.
Check the codes on the controller’s seven-segment display as it comes back online. If the
display shows one of the following repeating sequences, immediately remove the controller.
◦ OE, L0, blank (mismatched controllers)
◦ OE, L6, blank (unsupported HIC) Attention: Possible loss of data access — If the
controller you just installed shows one of these codes, and the other controller is reset for
any reason, the second controller could also lock down.
4.
When the controller is back online, confirm that its status is Optimal, and check the controller
shelf’s Attention LEDs.
If the status is not Optimal or if any of the Attention LEDs are on, confirm that all cables are
correctly seated, and check that the HIC and the controller canister are installed correctly. If
necessary, remove and reinstall the controller canister and the HIC.
If you cannot resolve the problem, contact technical support.
5.
Collect support data for your storage array using ThinkSystem System Manager.
a.
Select Support › Support Center › Diagnostics.
b.
Select Collect Support Data.
c.
Click Collect.
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