HP Workstation xw4100 Adaptec SCSI RAID 2120S: Software User's Guide - Page 123

snapshot, spanned volume, spare, stripe, stripe size, stripe set of mirror sets, stripe set of RAID 5

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Glossary snapshot Instantaneous read-only copy of an array at a precise point in time. spanned volume Concatenation of segments on two or more drives. spare See hot spare. stripe Contiguous set of data distributed across all the disks in an array. A stripe set distributes, or stripes, data evenly across its respective disks in equal sized sections called stripes. stripe size In striped array types, (RAID 0, RAID 5, RAID 10, RAID 50) data is distributed, or striped, across the member disks in equally-sized sections. The amount of data in each section on a disk is the stripe size. stripe set See RAID 0. stripe set of mirror sets See RAID 10. stripe set of RAID 5 See RAID 50. T task An operation that occurs only on the RAID controller, asynchronous to all other operations; for example, initializing a disk or verifying an array. Some tasks can take an extended period of time, particularly if the RAID controller is also performing intensive data I/O while the task is running. A-13

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A-13
Glossary
snapshot
Instantaneous read-only copy of an array at a precise point in time.
spanned volume
Concatenation of segments on two or more drives.
spare
See
hot spare
.
stripe
Contiguous set of data distributed across all the disks in an array.
A stripe set distributes, or
stripes
, data evenly across its respective
disks in equal sized sections called
stripes
.
stripe size
In striped array types, (RAID 0, RAID 5, RAID 10, RAID 50) data is
distributed, or striped, across the member disks in equally-sized
sections. The amount of data in each section on a disk is the stripe
size.
stripe set
See
RAID 0
.
stripe set of mirror sets
See
RAID 10
.
stripe set of RAID 5
See
RAID 50
.
T
task
An operation that occurs only on the RAID controller,
asynchronous to all other operations; for example, initializing a
disk or verifying an array. Some tasks can take an extended period
of time, particularly if the RAID controller is also performing
intensive data I/O while the task is running.