3DM2™ Online Help

Setting the Auto-Rebuild Policy
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.
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 through 3DM2

1 | Choose Management >> Controller Settings from the menu bar in 3DM2.

2 | 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.

Related Topics
  Viewing Controller Policies
  Using Auto-Carving for Multi LUN Support
  Setting the Size of Volumes Created with Auto-Carving
  Enabling and Setting Up Staggered Spin-up
  Viewing Information About a Phy
  Changing the Phy Link Speed

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