Raid 0+1 - Accusys ACS-9910 User Manual

Appendix B – Introduction to RAID levels

RAID 0+1

RAID 0+1 combines mirroring and striping functions on a minimum of four hard disks.
Mirroring provides full redundancy and protects data in case of multiple drive failure (providing
that data on one of each mirrored pair of drives is intact).
RAID 0+1: Combination of striping and mirroring
Characteristics:
This configuration provides optimal speed and reliability.
Requires even number of disks (minimum 4 disks)
Arrangement of data blocks saved on a Level 0+1 array
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