Hp StorageWorks XP Remote Web Console Software Instrukcja Użytkownika Pobierz pdf (Strona 61)

LUN Configuration and Security Manager XP user guide for the XP128/XP1024 61

• Install CV: Creates custom volumes from free space.

• Make Volume: 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 29 and Figure 30 show a sample VDEV (whose components are LDEVs) in its initial condition and

the VDEV after custom volumes are created.

Figure 29 VSC process (all supported emulation types except for OPEN-V)

Figure 30 VSC process (OPEN-V)

Parity group configuration

This section explains the parity group configuration of emulation types other than OPEN-V. OPEN-V

volumes always consist of variable sized volumes instead of fixed-size volumes (FVs). To use OPEN-V,

parity groups must be enabled to support the OPEN-V emulation type. To enable OPEN-V, contact your HP

account support representative.

For emulation types other than OPEN-V, one parity group consists of a maximum of 16 VDEVs. For RAID-5

(7D + 1P) level or RAID-6 (6D + 2P) levels, a maximum of 512 fixed-size volumes (FVs), and a certain

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Hp StorageWorks XP Remote Web Console Software Instrukcja Użytkownika Strona 61