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Glossary ● 90
disk ID
Unique disk identifier that consists of the channel number, SATA ID. For example, (channel:ID:LUN)
1:04:0. See 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 nonredundant 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.
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 redundant.
foreign disk
Disk that has previously been configured on another Adaptec RAID controller. The RAID signature on the
disk allows the RAID controller to identify whether or not the disk was configured on the controller it is
currently connected to.
H
hard disk drive
Basic unit of nonvolatile, nonremovable, magnetic storage media. See disk.
hot spare
A spare hard disk that automatically replaces a failed hard disk on any array associated with any HBA.
hot swap
To remove a component from a system, and install a new component while the power is on and the system
is running.
I
impacted
An impacted array is one which has been created but for some reason the initial build operation did not
complete. All member drives are present and operational, and all data written to the array is protected. To
optimize the array, run a Verify with Fix Task.
initialize
See configure.