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Glossary-6
Glossary
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 removes
the file system from the disk.
M
migration
See reconfiguration.
mirrored array/mirroring
See RAID 1 on page E-2.
monitoring
Process of receiving, displaying, and logging system events.
multipartition array
Array with multiple operating systems or MS-DOS partitions.
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.