Users Guide

• Raid level 0 (striping)
• Raid level 1 (mirroring)
• Raid level 5 (striping with distributed parity)
• Raid level 6 (striping with additional distributed parity)
• Raid level 50 (striping over raid 5 sets)
• Raid level 60 (striping over raid 6 sets)
• Raid level 10 (striping over mirror sets)
RAID level 0 (striping)
RAID 0 uses data striping, which is writing data in equal-sized segments across the physical disks. RAID 0
does not provide data redundancy.
RAID 0 characteristics:
• Groups n disks as one large virtual disk with a capacity of (smallest disk size) *n disks.
• Data is stored to the disks alternately.
• No redundant data is stored. When a disk fails, the large virtual disk fails with no means of rebuilding
the data.
• Better read and write performance.
RAID level 1 (mirroring)
RAID 1 is the simplest form of maintaining redundant data. In RAID 1, data is mirrored or duplicated on
one or more physical disks. If a physical disk fails, data can be rebuilt using the data from the other side of
the mirror.
216