HP XP Racks - Manual (Page 55)

You can convert one or more of the LDEVs on a selected parity group into free space by deleting
the LDEVs. That free space can be used to either create one or more variable-sized volumes (CVs)
using the Create LDEVs function, or left as free space for future use.
WARNING! Deleting LDEVs will erase your data. Back up your data before deleting LDEVs.
An LDEV cannot be deleted successfully if it is:
•
In the defined path (including the pair volumes of Continuous Access Synchronous and
Continuous Access Journal).
•
A pool-VOL.
•
A journal volume.
•
A remote command device.
•
A volume security volume.
•
An LDEV that has the Read/Write access attribute.
When you delete an LDEV, the alias information contained in the LDEV is also deleted. Therefore,
if you delete an LDEV related to an alias device, you should do one of the following:
•
Allocate another LDEV to the alias device, and then delete the LDEV.
•
Delete the LDEV first, and then allocate another LDEV to the alias device.
For information about how to delete a registered external volume, see the HP XP7 External Storage
for Open and Mainframe Systems User Guide.
Procedure 7 To delete an LDEV
1. Select one or more LDEVs to be deleted.
2. Click More Actions and select Delete LDEVs.
3. In the Confirm window, confirm the settings, in Task Name type a unique name for this task
or accept the default, and then click Apply.
The LDEV is deleted.
If Go to tasks window for status is checked, the Tasks window opens.
Formatting LDEVs
If you initialize LDEVs that are being used, you will need to format the LDEVs. Read the following
topics before formatting LDEVs:
•
“About formatting LDEVs” (page 55)
•
“Storage system operation when LDEVs are formatted” (page 56)
•
“Quick Format function” (page 56)
Formatting LDEVs includes the following tasks:
•
“Formatting a specific LDEV” (page 58)
•
“Formatting all LDEVs in a parity group” (page 58)
About formatting LDEVs
The LDEV Format function, which includes Normal Format, and Quick Format. These functions
format volumes, including external volumes. Before formatting volumes, ensure that the volumes
are in blocked status.
Formatting LDEVs 55