HP 2000fc Cli Reference Manual page 274

ULP Unified LUN Provisioning. A MSA2012sa storage system feature that
makes all volumes in the system accessible to hosts through all host
ports on both controllers. ULP incorporates Asymmetric Logical Unit
Access (ALUA) extensions.
UT Universal Time. A modern time system related to the conventional
Greenwich Mean Time (GMT) used for time zones.
UPS Uninterruptible Power Supply.
vdisk Abbreviation for virtual disk.
vdisk spare A disk drive that is marked as a spare to support automatic data
rebuilding after a disk drive associated with a virtual disk fails. For a
vdisk spare to take the place of another disk drive, it must be at least
equal in size to the failed disk drive and all of the virtual disks
dependent on the failed disk drive must be redundant—RAID 1, 10, 3,
5, 6, or 50.
verify A process that checks the integrity of the redundant data on fault-
tolerant virtual disks. For RAID 3, 5, 6, and 50, the verify process
recalculates the parity of data stripes in each of the virtual disk's RAID
stripe sets and compares it with the stored parity. For RAID 1 and 10,
the verify process checks for mirror mismatches. The number of
inconsistencies found, which can indicate a failing drive, is reported in
the event log.
virtual disk For MSA2000 Family storage systems, a set of disk drives that share a
RAID level and drive type, and across which host data is spread for
redundancy or performance.
volume A logical subdivision of a virtual disk. Multiple LUNs can be assigned
to the same volume, one for each host port given access to the volume.
See also standard volume.
volume mapping The process by which volume permissions (read only, read/write, or
none) and LUNs are assigned to a host port.
WBI See SMU.
web-browser
interface (WBI) See SMU.
274 HP StorageWorks 2000 Family Modular Smart Array CLI reference guide • May 2008