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What do I need to know before upgrading drive firmware?

Before upgrading your drive firmware, be aware of these items.

  • As a precaution, back up your data using disk-to-disk backup, volume copy (to a volume group not affected by the planned firmware upgrade), or a remote mirror.

  • You might want to upgrade only a few drives to test the behavior of the new firmware to ensure it is functioning correctly. If the new firmware is functioning correctly, upgrade the remaining drives.

  • If you have any failed drives, fix them before you start the firmware upgrade.

  • If the drives can do an offline upgrade, stop I/O activity to all volumes associated with the drives. When I/O activity is stopped, no configuration operations associated with those volumes can occur.

  • Do not remove any drives while upgrading drive firmware.

  • Do not make any configuration changes to the storage array while upgrading drive firmware.