Volume Set; Stripe Set (Raid 0 - Adaptec DuraStor 7220SS User Manual

Volume Set

A volume set, also known as a virtual disk or a JBOD, is a single disk
drive that is not used in an array. Depending on the controller, a
volume set can also be a partition that equals the full capacity of a
given disk drive. In some controllers, it can be a daisy chain of
multiple drives.
Volume sets are useful if you have a single disk drive and you do
not want to use it as a spare.
Figure A-3 represents a volume set made up of one disk drive.
.
Partition A
Figure A-3 Volume set

Stripe Set (RAID 0)

A stripe set is an array made up of two or more equal-sized
partitions that reside on different disk drives. The stripe set
distributes, or stripes, data evenly across its respective disk drives
in equal-sized sections called chunks.
Since a stripe set does not protect data against disk drive, channel,
or media failure by maintaining redundant data, it is not really a
RAID array, but is a good technique for improving I/O
performance (compared to that of an equal number of independent
disk drives). Because this type of cyclic mapping of stripes of data
across an array's member disk drives is commonly used in other
RAID arrays, the name RAID 0 is widely used to describe disk
striping, even though the method provides no data protection.
4 GB
Drive 1
Storage Concepts
Volume Set A
4 GB
A-8