Datasheet

Glossary-7
Glossary
P
partition
See segment.
phantom object
Object that represents a component that cannot be configured by
the controller management software; for example, a missing drive.
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 5
Single-level array consisting of at least three drives. Like RAID 0,
data is striped across the drives. However, in RAID 5, parity is
stored separately from data, and occupies the equivalent of one