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Critical
Arrays in the Critical status can be accessed and utilized, but are no longer fault tolerant. A Critical array
should be rebuilt as soon as possible to restore redundancy.
A critical status array has all the normal status options except the following:
The Array can no longer be renamed
Add Disk replaces the Verify Disk option
Once the array status changes to critical, the faulty disk will be taken offline and you can either:
Reinsert the same disk
Insert new disk
Reinserting the same disk should trigger the rebuilding status, since data on the disk would be
recognized. If you insert a new disk, clicking Add Disk will give you the option to select that disk and add
it to the array. If a spare disk is available, an array that has entered the critical state will begin rebuilding
using the next available spare disk.
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