HP Xw8200 Adaptec SCSI RAID 2120S: Software User's Guide - Page 122

Or SCSI ID. Number assigned to each, Small Computer System Interface. High-speed parallel

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Glossary SCSI Small Computer System Interface. High-speed parallel communication scheme permitting data transfer rates of up to 320 MB/sec using the Ultra320 specification. The current specification supports up to 15 devices per channel. See also ATA. SCSI device ID Or SCSI ID. Number assigned to each SCSI device attached to a SCSI channel. Also known as target ID. second-level array Logical device (lower array in a dual-level array) that is never visible to the operating system and can be used only by other logical devices. For example, a RAID 1 that is a member of a RAID 10 is a second-level array. Contrast with visible array and top-level array. segment Reserved area on a physical disk that is a by-product of array creation or failover operation. That is, when the software creates an array, it automatically converts the user-specified available space into segments. A segment is always part of a logical device and cannot be used by more than one logical device at a time. serial ATA A successor to ATA that transfers data across a serial interface, instead of a parallel one. simple volume Single segment of a drive's available space. single-level array Array created from one or more segments. See also volume, RAID 0, RAID 1, RAID 5. S.M.A.R.T. Self-Monitoring Analysis and Reporting Technology. This technology is a drive feature designed to determine the reliability status of a disk. If S.M.A.R.T. senses that a potential problem is imminent, the user may be notified and advised of the appropriate action. A-12

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A-12
Glossary
SCSI
Small Computer System Interface. High-speed parallel
communication scheme permitting data transfer rates of up to 320
MB/sec using the Ultra320 specification. The current specification
supports up to 15 devices per channel. See also
ATA
.
SCSI device ID
Or SCSI ID. Number assigned to each
SCSI
device attached to a
SCSI
channel
. Also known as target ID.
second-level array
Logical device (lower array in a dual-level array) that is never
visible to the operating system and can be used only by other
logical devices. For example, a RAID 1 that is a member of a RAID
10 is a second-level array. Contrast with
visible array
and
top-level
array
.
segment
Reserved area on a physical disk that is a by-product of array
creation or
failover
operation. That is, when the software creates an
array, it automatically converts the user-specified available space
into segments. A segment is always part of a logical device and
cannot be used by more than one logical device at a time.
serial ATA
A successor to ATA that transfers data across a serial interface,
instead of a parallel one.
simple volume
Single segment of a drive’s available space.
single-level array
Array created from one or more segments. See also
volume
,
RAID 0
,
RAID 1
,
RAID 5
.
S.M.A.R.T.
Self-Monitoring Analysis and Reporting Technology. This
technology is a drive feature designed to determine the reliability
status of a disk. If S.M.A.R.T. senses that a potential problem is
imminent, the user may be notified and advised of the appropriate
action.