shadow copy | A Microsoft term describing a |
| original volume continues to change as the process continues, but the shadow |
| copy of the volume remains constant. |
snapclone | An HP EVA disk array term denoting a full copy of a volume that becomes |
| immediately usable by an application. Created much faster than ordinary |
| clones by taking a snapshot and updating to a full copy in the background. |
snapshot | A generic term meaning a static |
| for backup. |
split mirror | A full copy of data that has been split off from the original and is no longer |
| being updated. |
subsystem | Synonym for “disk array” or “RAID.” |
SVP | Service processor. A laptop PC built into the HP XP Disk Array. The SVP |
| provides a direct interface into the disk array, and is used by the HP service |
| representative only. |
volume | Generic term for a number of physical disks or portions of disks logically |
| bound together as a virtual disk containing contiguous logical blocks. Volume |
| can also be software shorthand for a mapped volume (Windows drive letter |
| or mount point). |
VDS | Microsoft Virtual Disk Service, the Windows service that manages storage |
| through hardware providers. |
volume shadow | See “shadow copy.” |
copy |
|
VSC | Volume Size Configuration, a feature of HP disk arrays that allows creation of |
| logical volumes |
VSS | Microsoft Volume Shadow Copy Service, the Windows service that creates data |
| copies. Works through HP HWP to make copies of disk array volumes. |
XP | HP StorageWorks XP Disk Array. |
52 Glossary