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Glossary
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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.
UG.book Page 6 Saturday, October 26, 2002 12:08 PM