Effects of a hard drive failure on logical drives

When a drive fails, all logical drives that are in the same array are affected. Each logical drive in an array might be using a different fault-tolerance method, so each logical drive can be affected differently.

• RAID 0 configurations do not tolerate drive failure. If any physical drive in the array fails, all RAID 0 logical drives in the same array also fail.
• RAID 1 tolerates the failure of one drive.

• RAID 10 configurations tolerate multiple drive failures as long as no failed drives are mirrored to another failed drive.

• RAID 5 configurations tolerate one drive failure.
• RAID 50 configurations tolerate one failed drive in each parity group.
• RAID 6 configurations tolerate two failed drives at a given time.
• RAID 60 configurations tolerate two failed drives in each parity group.
• RAID 1 (ADM) and RAID 10 (ADM) configurations tolerate multiple drive failures if no more than two drives, mirrored to one another, fail.