HP Workstation xw6000 Adaptec SCSI RAID 2120S: Software User's Guide - Page 118

legacy disk, logical device, low-level format, migration, mirror set, mirroring; mirrored array

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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 Device (disk) comprised of spaces from one or more physical drives and presented to the operating system as if it were one drive. logical device order Sequence in which the system's operating system detects the arrays, single hard disks, and other devices connected to the controller when the server boots. low-level format Process performed by the drive firmware that completely cleans any data off the hard disk. LUN Logical Unit Number. The number assigned to a subdevice of a SCSI device. Each SCSI device can contain up to eight subdevices numbered 0 through 7. However, most SCSI devices contain only one subdevice (LUN 0). M migration See reconfiguration. mirror set See RAID 1. mirroring; mirrored array See RAID 1. A-8

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A-8
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
Device (disk) comprised of spaces from one or more physical
drives and presented to the operating system as if it were one
drive.
logical device order
Sequence in which the system’s operating system detects the
arrays, single hard disks, and other devices connected to the
controller when the server boots.
low-level format
Process performed by the drive firmware that completely cleans
any data off the hard disk.
LUN
Logical Unit Number. The number assigned to a subdevice of a
SCSI device. Each SCSI device can contain up to eight subdevices
numbered 0 through 7. However, most SCSI devices contain only
one subdevice (LUN 0).
M
migration
See
reconfiguration
.
mirror set
See
RAID 1
.
mirroring; mirrored array
See
RAID 1
.