When Data ONTAP can put a disk into the maintenance center

When Data ONTAP detects certain disk errors, it tries to put the disk into the maintenance center for testing. Certain requirements must be met for the disk to be put into the maintenance center.

If a disk experiences more errors than are allowed for that disk type, Data ONTAP takes one of the following actions:

• If the disk.maint_center.spares_check option is set to on (the default) and two or more spares are available (four for multi-disk carriers), Data ONTAP takes the disk out of service and assigns it to the maintenance center for data management operations and further testing.
• If the disk.maint_center.spares_check option is set to on and fewer than two spares are available (four for multi-disk carriers), Data ONTAP does not assign the disk to the maintenance center.

  It fails the disk and designates the disk as a broken disk.

• If the disk.maint_center.spares_check option is set to off, Data ONTAP assigns the disk to the maintenance center without checking the number of available spares.