HP Workstation xw6000 Adaptec SCSI RAID 2120S: Software User's Guide - Page 116

failed, failed segment, failover, fault-tolerant arrays, first logical device, foreign disk, freespace

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Glossary F failed State of a non-redundant array that has suffered a single drive failure, or a a redundant array that has suffered multiple drive failures will be failed and become inaccessible. This will result in data loss. failed segment A segment that is no longer usable by an array because it is either logically bad, and therefore no longer needed, or physically damaged. failover In a redundant array that has suffered a failure, to automatically reconstruct the missing data onto an assigned hot spare. fault-tolerant arrays Refers to an array that can tolerate a disk drive failure without loss or date, and can continue to function. Fault tolerant, or redundant arrays, include RAID 1, 5, 10 and 50 arrays. See also Redundant first logical device Device with (virtual) logical device order number 0 (zero). The boot device of the system. Also called first virtual device. foreign disk Disk that has previously been initialized on another Adaptec RAID controller. The RAID signature on the disk allows the RAID controller to identify whether the disk was initialized on the controller it is currently connected to or not. freespace See available space. A-6

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A-6
Glossary
F
failed
State of a non-redundant array that has suffered a single drive
failure, or a a redundant array that has suffered multiple drive
failures will be failed and become inaccessible. This will result in
data loss.
failed segment
A
segment
that is no longer usable by an array because it is either
logically bad, and therefore no longer needed, or physically
damaged.
failover
In a redundant array that has suffered a failure, to automatically
reconstruct the missing data onto an assigned hot spare.
fault-tolerant arrays
Refers to an array that can tolerate a disk drive failure without loss
or date, and can continue to function. Fault tolerant, or redundant
arrays, include RAID 1, 5, 10 and 50 arrays. See also
Redundant
first logical device
Device with (virtual) logical device order number 0 (zero). The
boot device of the system. Also called
first virtual device
.
foreign disk
Disk that has previously been initialized on another Adaptec RAID
controller. The RAID signature on the disk allows the RAID
controller to identify whether the disk was initialized on the
controller it is currently connected to or not.
freespace
See
available space
.