HP StorageWorks SAN Virtualization Services Platform Manager User Guide (5697-0454, May 2010)

DescriptionProperty
The PiT granularity of the virtual disk. PiT granularity affects the capacity required
to store virtual disk updates after the creation of a snapshot PiT. The PiT granularity
is set to Large I/Os (1 MB) and is not configurable.
PiT granularity
If the virtual disk is a member of a virtual disk group, the name of the virtual disk
group.
VDG
The application associated with the virtual disk. For information about adding
application types and associating them with virtual disks, see “Adding applications
to virtual disks” on page 120.
Application Type
Yes indicates that the virtual disk is a thin provisioned virtual disk type.
No indicates that the virtual disk is not a thin provisioned virtual disk type.
Is Thin Provision
This setting indicates whether the virtual disk is a SAN API virtual disk. SAN API
virtual disks are created to enable hosts to direct SAN API commands to VSM
through a DPM. For information about creating SAN API virtual disk, see “Creating
the setup virtual disk” on page 373.
SAN API Virtual Disk
The virtual disk's OpenVMS Unit ID (OUID). Possible values:
• 0—The virtual disk is considered as having no OUID assignment. This is the
default value.
• 1–32767
OpenVMS UID
Viewing virtual disk information
You can display detailed information related to each virtual disk in the tabs area below the virtual
disks list.
To view information related to a virtual disk:
In the virtual disks list, select a virtual disk. The following tabs are displayed:
• Properties—Provides the same general information about the selected virtual disk described in
Table 39.
• Storage Pool—Provides information about storage pool(s) from which virtual disk capacity is alloc-
ated.
• PiT—Provides information about any snapshot PiTs created for the selected virtual disk.
• Host Presentation—Provides information about hosts that have permission to access the selected
virtual disk.
• Data Path Module/VSM—If the selected virtual disk is used by UDHs, the Data Path Module/VSM
tab provides information about the DPMs that service this virtual disk, which one is configured as
primary, and which is currently active.
• Virtual Disk Segment—Provides information about the virtual disk segments from which the selected
virtual disk is constructed. A virtual disk consists of more than one segment if it is created from
more than one storage pool or was expanded.
• User Quota—Shows the users from which this virtual disk uses quota and the quota that this virtual
disk uses from each user.
• Security—Shows which permissions are assigned to users and user groups for managing the vir-
tual disk.
• Virtual Disk Copy— Provides information about the copies of the virtual disk.
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