HP P2000 G3 Reference Manual page 141

snap pool
snapshot
SSD
ULP
unwritable cache data Cache data that has not been written to disk and is associated with a volume that no longer
vdisk
volume
volume copy
WWN
WWNN
WWPN
A volume that stores data that is specific to snapshots of an associated master volume,
including copy-on-write data and data written explicitly to the snapshots. A snap pool
cannot be mapped.
A "virtual" volume that preserves the state of a master volume's data as it existed when the
snapshot was created. Data associated with a snapshot is recorded in both the master
volume and in its associated snap pool. A snapshot can be mapped and written to. The
capability to create snapshots is a licensed feature.
Solid-state drive. Supported SSDs have a SATA interface.
Unified LUN Presentation. A RAID controller feature that enables a host to access mapped
volumes through any controller host port.
exists or whose disks are not online. If the data is needed, the volume's disks must be
brought online. If the data is not needed it can be cleared, in which case it will be lost and
data will differ between the host and disk. Unwritable cache is also called orphan data.
A "virtual" disk comprising the capacity of one or more disks. The number of disks that a
vdisk can contain is determined by its RAID level.
A portion of the capacity of a vdisk that can be presented as a storage device to a host.
An independent copy (clone) of the data in a volume. The capability to create volume
copies makes use of snapshot functionality.
World Wide Name. A globally unique 64-bit number that identifies a node process or
node port.
World Wide Node Name. A globally unique 64-bit number that identifies a node process.
World Wide Port Name. A globally unique 64-bit number that identifies a node port.
HP StorageWorks P2000 G3 MSA System SMU Reference Guide 141