Stripe Set Of Mirror Sets (Raid 0/1 - Adaptec DuraStor 7220SS User Manual

Stripe Set of Mirror Sets (RAID 0/1)

RAID technology allows you to create arrays that contain other
arrays sometimes known as multilevel arrays or hybrid arrays. A
stripe set of mirror sets, also known as RAID 0/1 or RAID 10, is an
array made up of two or more equal-sized mirror sets. The data in a
stripe set of mirror sets is redundant. The mirrored layer of this
array enhances data availability by protecting against loss due to
member disk drive failure. The striping layer improves
performance.
Figure A-9 represents a stripe set of mirror sets created from three
equal-sized mirror sets (A, B, and C) and striped across six disk
drives. Each mirror set is made up of two partitions on two
separate disk drives. The free space of the larger drive is not used.
Mirror Set A
4 GB
Chunks 1,4,7...
Drive 1
Partition A
Partition A(R)*
4 GB
4 GB
*(R) = Redundant
Figure A-9 Stripe set of mirror sets
Mirror Set B
4 GB
Chunks 2,5,8...
Drive 2 Drive 3
Partition B
4 GB
General Storage Concepts
Stripe Set of Mirror Sets
12 GB
Chunks
1,2,3,4,5,6,7,8,9...
Drive 5
Drive 4
Partition B(R)* Partition C Partition C(R)*
4 GB 4 GB
Mirror Set C
4 GB
Chunks 3,6,9...
Drive 6
Free Space
4 GB
A-17