To view information about installed Field Replaceable Units (FRUs) using the Service Processor, the following commands are used:
1. system fru list
What it does:
Displays a list of all installed FRUs, such as disks, power supplies, and fans.
2. system fru show
What it does:
Provides detailed information about specific FRUs, including serial numbers, statuses, and hardware details.

After a controller replacement, the system can boot the wrong ONTAP version if the primary and secondary boot images are mismatched following the varfs restoration process. The node may select the alternate image during boot, resulting in the incorrect ONTAP version running.

To reset environment variables to factory settings, the set-defaults command is used. This command clears all customizations and restores the environment variables to their default values.
Key Details:
Command Syntax:
At the LOADER prompt, type:
arduino
Copy code
set-defaults
Effect:
This command resets all environment variables (e.g., boot arguments, diagnostic settings) to their original factory defaults.

The expander map shows channel 0a reaching shelf IDs 1, 2, and 3 on IOM A, but shelf ID 4 is missing from that path. This indicates a break in the IOM A shelf chain between shelf ID 3 and shelf ID 4, so that cable should be checked or replaced.

Aggregate Relocation (ARL) enables a nondisruptive controller upgrade within the same cluster by relocating aggregates from the old FAS controllers to the new AFF C-Series controllers while keeping block, file, and object services online throughout the migration.