HP XP Array Manager Software - Manual (Page 157)

As you enter information in a dialog box, if the information is incorrect, errors that include a description
of the problem appear at the top of the box.
Table 14 Unallocate volumes dialog box
Description Subfield Field
Note: It is recommended that volumes be unmounted from hosts prior to
unallocating the volumes.
The unallocate volumes dialog box works slightly differently depending
on where you launch the dialog box, for example:
If you select Unallocate Volumes from General Tasks, you will be
prompted to select a host. Selecting the host will display the host volumes.
Select one or more volumes and click Show Plan to display the fields
and options below.
If you select Unallocate Volumes by selecting a host row from the Hosts
panel, you will not be prompted to select a host. Host volumes are
displayed. Select one or more volumes and click Show Plan to display
the fields and options below.
If you click the host name to list host volumes, you can identify and select
volumes using details such as host group, or volume attribute (for
example, LUSE). Select volumes and click Unallocate Volumes to display
the fields and options below. In this case, Show Plan is not displayed
because the host volumes were known prior to launching the dialog box.
- Host
For one or more volumes the volume id, storage system, volume type,
drive type, and host for each volume is displayed.
- Plan Summary
There is a Deletable column with a yes or no value to indicate whether
the volume can be deleted. For example, volume conditions preventing
deletion include:
• The volume is in use by another host
• The volume is a command device
• The volume is a pair volume
Volume Informa-
tion
>> Plan Details
For one or more volumes the volume id, storage system, storage port,
port type, host port, LU number, host group, host mode, and 'other op-
tions' for each volume is displayed. This provides complete storage and
host LUN path information.
LUN Path Inform-
ation
If you select all volumes for a host group, a host group deletion option
is displayed. Deleting a host group is only done under very specific cir-
cumstances, such as the target server having been replaced with a new
server. Do not select this option unless you know the exact status of the
target server and the server volumes (data), and are confident this option
is appropriate.
Host Group De-
lete
>> Advanced
Options This default selection unallocates volumes only without deleting volume
data or the volume. Unallocated volumes can be re-allocated to another
host, for example a newer and faster server.
Only unallocate
volumes
A LUSE volume is created by aggregating (combining) multiple smaller
LDEVs into a larger volume that is allocated to a host. If one or more
LUSE volumes are selected, this option is activated and can be selected
to un-allocate LUSE volumes and release the component LDEVs of the
LUSE volume.
Release LUSE
volumes
User Guide 157