NetApp AFF - Page 464

f. Select the option to boot to Maintenance mode from the displayed menu.
Step 5: Run system-level diagnostics
After installing a new NVMEM battery, you should run diagnostics.
Your system must be at the LOADER prompt to start System Level Diagnostics.
All commands in the diagnostic procedures are issued from the controller where the component is being
replaced.
1. If the controller to be serviced is not at the LOADER prompt, perform the following steps:
a. Select the Maintenance mode option from the displayed menu.
b.
After the controller boots to Maintenance mode, halt the controller:
halt
After you issue the command, you should wait until the system stops at the LOADER prompt.
During the boot process, you can safely respond y to prompts:
▪ A prompt warning that when entering Maintenance mode in an HA configuration, you must ensure
that the healthy controller remains down.
2. At the LOADER prompt, access the special drivers specifically designed for system-level diagnostics to
function properly:
boot_diags
During the boot process, you can safely respond y to the prompts until the Maintenance mode prompt (*>)
appears.
3.
Run diagnostics on the NVMEM memory:
sldiag device run -dev nvmem
4.
Verify that no hardware problems resulted from the replacement of the NVMEM battery:
sldiag device
status -dev nvmem -long -state failed
System-level diagnostics returns you to the prompt if there are no test failures, or lists the full status of
failures resulting from testing the component.
5. Proceed based on the result of the preceding step:
462