Replacing a Failed Hard Disk in a RAID. If a hard disk in a RAID fails, all you need to do is replace the disk. The RAID controller automatically ensures that the correct data is restored to the new hard disk.
To Replace a Failed Hard Disk in a RAID
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Step 1 If you do not already have a new, blank hard disk that is compatible with the other disks in the RAID, get one from the server manufacturer or the vendor from whom you purchased the server.
Step 2 When the new hard disk is available, follow the manufacturer instructions to remove the failed disk from the server.
Step 3 Insert the new hard disk in the server.
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