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Glossary
Q
quick init
An array initialized using the Quick Init option is available
immediately, with no on-going background controller activity. All
data written to an array that has been quick initialized is protected.
R
RAID
Redundant Array of Independent Disks (alternative definition
Redundant Array of Inexpensive Disks).
RAID 0
A
single-level array
consisting of two or more equal-sized segments
residing on different disks. RAID 0 distributes data evenly across
its respective drives in equal-sized sections called stripes. RAID 0
arrays are not redundant.
RAID 1
Single-level array consisting of two equal segments residing on
two different drives. Provides redundancy by storing identical
copies on two drives.
See also
mirrored
array/mirroring.
RAID signature
The area on each disk reserved for use by the RAID controller.
RAID volume
Concatenates two or more arrays of the same type.
rebuild
Background regeneration of redundant data on a RAID 1.
redundant
The ability of an array to maintain operability when one or more
hardware failures occur. RAID 1 is redundant. In the event of a
drive failure, redundant arrays can be restored to normal operation
by replacing the failed drive and rebuilding the array.
Glossary-7
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