Hp XP LUN Configuration and Security Manager Software Manuel d'utilisateur télécharger pdf (Page 39)

LUN Configuration and Security Manager XP user guide for the XP10000/XP12000 39

A small custom volume can be used as a command device. This leaves the rest of the LDEV free for other

uses.

VSC operations

VSC operations include the following:

• Volume to Space: Formats one or more LDEVs on a selected VDEV into free space, which can be used

to install one or more custom volumes using the Install CV function, or left as free space for future use.

• Install CV: Creates custom volumes from free space.

• Make Volume or Volume Initialize (supported for OPEN-V VDEVs only for XP12000 arrays): Converts a

custom volume back to a normal volume (VDEV).

The Make Volume function clears all custom volumes under a VSC volume and creates an initial volume

(VDEV) that consists of new user-defined custom volumes.

The Volume Initialize function uninstalls all custom volumes under a VSC volume, and reformats the VSC

volume as a normal volume (VDEV).

Compared to other emulation types, use OPEN-V to easily create volumes of any size. OPEN-V volumes

always consist of custom volumes, instead of fixed-size volumes.

CAUTION: VSC operations are destructive. Back up your data before performing VSC operations.

Figure 17 and Figure 18 show a sample VDEV (whose components are LDEVs) in its initial condition and

the VDEV after custom volumes are created.

Figure 17 VSC process (all supported emulation types except for OPEN-V)

Figure 18 VSC process (OPEN-V)

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Hp XP LUN Configuration and Security Manager Software Manuel d'utilisateur Page 39