Quick init, Raid 0, Raid 1 – HP Workstation xw8000 User Manual

Page 120: Raid 5

Advertising
background image

A-10

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.
An array created using this option will remain in a Quick Init state,
and for RAID 5 and 50 write performance will be degraded, until a
verify with fix is run on the array.

R

RAID

Redundant Array of Independent Disks (alternative definition
Redundant Array of Inexpensive Disks). Redundancy, however, is
not a feature of

RAID 0

.

RAID 0

Single-level array consisting of two or more equal-sized segments
residing on different disks. RAID 0 distributes, or stripes, data
evenly across its respective drives in equal-sized sections. See also

single-level array

.

Also known as a

stripe set

.

RAID 0/1

See

RAID 10

.

RAID 1

Single-level array consisting of two equal segments residing on
two different disks. Provides redundancy by storing the same data
on two components.

Also known as a mirror set.

RAID 5

Single-level array consisting of at least three equal-sized segments
with the capacity of one segment used for

parity

data. In a RAID 5,

parity is distributed in stripes across all segments.

UG.book Page 10 Saturday, October 26, 2002 12:08 PM

Advertising
This manual is related to the following products: