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Glossary
disk ID
Unique disk identifier that consists of the channel number, SATA
ID. For example, (channel:ID:LUN) 1:04:0. See also channel.
drive LED
Disk indicator LED that illuminates during read or write
operations.
E
event
Notification or alert from the system, indicating that a change has
occurred.
event log
File used to maintain information about prior controller activities
or errors.
event notification
Process for transmitting events.
F
failed
State of a non-redundant array that has suffered a single drive
failure, or a redundant array that has suffered multiple drive
failures. A failed array is inaccessible and data is lost.
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.
fault-tolerant array
Refers to an array that can continue to function after a disk drive
failure without loss of data. Fault tolerant, or redundant arrays,
include RAID 1 arrays. See also Redundant.
Glossary-4
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