HP StorageWorks SAN Virtualization Services Platform Manager user guide (AG781-96017, March 2009)

3. Use the checkboxes to set one DPM in the DPM group as primary and one DPM as secondary.
NOTE:
• Use care in selecting the primary and secondary DPMs to prevent over subscribing one
and under utilizing the other.
• If you click Finish without defining the primary and secondary DPMs, VSM defines these
roles automatically.
4. Click Next. A confirmation screen appears.
5. Click Finish. The primary and secondary Data Path Module settings are changed.
Changing the active DPM for a VDG
NOTE:
Use care in selecting the primary and secondary DPMs to prevent over subscribing one and under
utilizing the other.
To change the active DPM for a VDG:
1. Right-click the VDG.
2. Select Manage > Manage Data Path Module > Change active Data Path Module. A confirmation
screen appears.
3. Click Finish. The active DPM is switched, unless the second DPM that supports the configuration
is not available.
Renaming VDGs
You can rename a VDG if no hosts are currently assigned permission to access the VDG.
To rename a VDG:
1. Right-click the VDG you want to rename.
2. Select Manage > Rename. The Rename wizard opens to the New name screen.
3. In the New name field, enter the new name.
4. Click Next. A confirmation screen appears.
5. Click Finish. The VDG is renamed.
Configuring VDG cluster support
This section describes how to configure VDG cluster support and cluster resources. When multiple
hosts have permission to access the VDG, you need to configure the VDG to support cluster usage
for proper behavior of the SVSP system. The VDG members must also be configured as cluster resources
in the cluster application.
To configure the VDG to support cluster usage:
1. Right-click the VDG.
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