HP 12000 User Manual page 198
Hp 12200 gateway virtual library system user guide (bw403-10001, june 2011)
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(2) A software emulation of a tape drive is called a virtual tape drive.
V
virtual tape
A disk drive buffer that emulates one physical tape to the host system and appears to the host
backup application as a physical tape. The same application used to back up to tape is used,
but the data is stored on disk. Also known as a piece of virtual media or a VLS cartridge.
Data can be written to and read from the virtual tape, and the virtual tape can be migrated to
physical tape.
virtual tape drive
An emulation of a physical transport in a virtual tape library that looks like a physical tape
transport to the host backup application. The data written to the virtual tape drive is really being
written to disk.
See also virtual tape library..
virtual tape library
A disk drive buffer containing virtual tape and virtual tape drives.
See also virtual tape drive..
W
WWNN
World wide node name. A globally unique 64-bit identifier assigned to each Fibre Channel node
process.
WWPN
World wide port name. A unique 64-bit address used in a FC storage network to identify each
device in a FC network.
198 Glossary
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