LUN (VLL) and Volume Shredder User Guide (T5214-96094, November 2011)

Figure 4 Virtual LVI/LUN Volume Configuration

Overview of LDEV Formatting

The LDEV Format feature allows you to format volumes (including external volumes). To format

volumes, you must ensure that the volumes are in blocked status. For detailed information, see

“Formatting the LDEVs” (page 70).

If the service processor (SVP) system option 503 is not set, when a volume is installed by using the

following operations, the volume is formatted automatically:

• Install CV

• Volume Initialize

• Make Volume

If the SVP system option 503 is set, when a volume is installed by using the following operations,

the volume is not formatted automatically, but is changed to Blocked. To format the installed volumes,

see “Formatting the LDEVs” (page 70).

• Install CV

• Volume Initialize

• Make Volume

Overview of Quick Formatting

The Quick Format feature allows you to execute quick formatting of the internal volumes in the

background. When you execute quick formatting, you can make settings on the system configuration

(such as defining a path, creating a file system, and creating an HP XP Continuous Access Software

pair) before the formatting is completed. In addition, if any I/O operation is performed from a

host during quick formatting, the formatting in the background might affect the performance. For

this reason, HP recommends that you monitor the performance of the volumes.

To execute quick formatting, you must create the system disk. To execute quick formatting of the

internal volumes, you must ensure that the internal volumes are in blocked status. For detailed

information, see “ Quick Formatting the LDEVs” (page 73).

The Quick Format feature cannot be used on the following volumes:

• Volumes other than the internal volume

• Volumes whose access attribute is not Read/Write

• Pool volumes

18 About Virtual LVI/LUN and Volume Shredder