Setting the Auto-Rebuild Policy

For 9550SX and 9590SE controllers, the Auto-Rebuild policy determines how the controller firmware will attempt to rebuild degraded units.

When Auto-Rebuild is disabled, only spares will be automatically used to rebuild degraded units. When Auto-Rebuild is enabled, the firmware will select drives to use for automatically rebuilding a degraded unit using the following priority order.

Smallest usable spare.
Smallest usable unconfigured (available) drive.
Smallest usable failed drive.

Enabling Auto-Rebuild allows you to add a drive to the controller and have it be available for a rebuild, without having to specify it as a spare. (For 9500S controllers, you need to tell the controller to Rescan before the controller will see the drive.)

With Auto-Rebuild enabled, if you accidentally disconnect a drive (causing the controller to see it as a failed drive) and then reconnect it, the controller will automatically try to use it again.

To enable Auto-Rebuild

Choose Management > Controller Settings from the menu bar in 3DM.
In the Other Controller Settings section at the bottom of the screen, select the Enabled option for Auto-Rebuild.

The page refreshes, and a message at the top confirms the change you have made.

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