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

NOTE:
For hosts running Windows 2008, VSM supports the following operations:
• You can convert VSS PiTs to regular PiTs.
• You can grant read-write permission for VSS snapshots in the operating system.
Navigating through snapshot hierarchies
Since the snapshot service supports the creation of multiple PiTs on one source virtual disk or VDG,
multiple snapshots on each PiT, and multiple PiTs on each snapshot or VDG snapshot, any given
snapshot entity may belong to a hierarchical structure of multiple dependent snapshot entities.
When a virtual disk or VDG is the source element of a snapshot hierarchy, you can view the hierarchy
in the Hierarchy tab for the virtual disk or VDG. The Hierarchy tab displays the hierarchical relationship
between the source element and all PiTs and snapshots that are dependent on the source element.
You can also see the PiTs that are directly dependent on the source element in the PiTs tab.
When you are viewing a snapshot entity (PiT or snapshot) and you want to trace back to the root of
the hierarchy to which the entity belongs and see the entity in the context of that hierarchy, you can
use one of the following procedures.
To trace a snapshot to the root of its hierarchy:
1. In the list area, select the snapshot you want to trace.
2. In the tabs area, select the Source PiT tab. The Source PiT tab displays the PiT from which the
snapshot was created.
3. Double-click the PiT. The tabs area now displays tabs relating to the PiT.
4. Select the Source Virtual Disk/Snapshot/VDG tab. The Source Virtual Disk/Snapshot/VDG tab
displays the virtual disk, snapshot, or VDG on which the PiT was created.
5. Double-click the source virtual disk, snapshot, or VDG. The tabs area now displays tabs relating
to the source virtual disk, snapshot, or VDG. You have reached the root of the hierarchy.
6. Select the Hierarchy tab. The Hierarchy tab displays the original source virtual disk or VDG and
the entire snapshot hierarchy dependent on that source element, including the snapshot you
started with, which you can identify by name in the hierarchy.
To trace a PiT to the root of its hierarchy:
1. If you are viewing the PiT in the PiT tab of a virtual disk or VDG, the selected virtual disk or VDG
is both the source of the PiT and the root of the hierarchy. Select the Hierarchy tab for the virtual
disk or VDG. The Hierarchy tab displays the original source virtual disk or VDG and the entire
snapshot hierarchy, dependent on that source element, including the PiT you started with, which
you can identify by name in the hierarchy.
2. If you are viewing the PiT in the PiT tab of a snapshot, select the Source PiT tab for the snapshot.
The Source PiT tab displays the PiT from which the snapshot was created.
3. Double-click the PiT in the Source PiT tab. The tabs area now displays tabs relating to that PiT.
4. Select the Source Virtual Disk/Snapshot/VDG tab. The Source Virtual Disk/Snapshot/VDG tab
displays the virtual disk, snapshot, or VDG on which the PiT was created.
5. Double-click the source virtual disk, snapshot, or VDG. The tabs area now displays tabs relating
to the source virtual disk, snapshot, or VDG. You have reached the root of the hierarchy.
Using snapshots236