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MS-9221 1U Rackmount Server
initialized array
An array that is ready for data reads and writes. Arrays can be initialized by build or
clear.
L
legacy disk
Disk that contained a valid partition table when connected to the controller. The
controller manages the disk as a legacy disk array where there is a one-to-one
logical-to-physical mapping of array to disk.
logical device
Volume comprised of space from one or more physical drives and presented to the
operating system as if it were a single storage unit.
low-level format
Process performed by the drive firmware that completely cleans any data off the
hard disk.
M
mirrored array/mirroring
See RAID 1.
monitoring
Process of receiving, displaying, and logging system events.
O
offline array
Array that can no longer be accessed.
optimal
The state of an array when it is fully operational. For redundant arrays, the entire
array is protected.
P
partition
A section of a disk storage device created by the operating system disk management
program, in which data and/or software programs are stored. Computers have a
primary operating system partition that contains the special files needed to boot the
computer. Each operating system partition is assigned a unique drive letter, such as
C or D. A single disk device can have multiple partitions.
phantom object
Object that represents a component that cannot be configured by the controller
management software; for example, a missing drive.
B-26
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