HP Storage Hardware Providers VDS/VSS Installation Guide (5697-1131, August 2011)

Setting VDS options
1. In the VDS configuration utility window, click the VDS Hardware Provider Options tab to see the
VDS options.
2. To specify a LUN tolerance, select the Enable LUN tolerance level check box and enter a
percentage of tolerance.
If you leave this function disabled, the VDS provider creates OPEN standard volume sizes if there
is no close match to a requested volume size already available. For example, if you use DISKRAID
to request the array to create a 2-GB volume and no 2-GB volumes are available, the provider
creates an OPEN-3 2.29 GB volume.
When LUN size tolerance is enabled, a LUN within the specified percentage range of the
requested LUN size is created. For example, if you request a 2-GB LUN and the tolerance level
is 50%, a LUN sized between 2 and 3 GB is created from the available LDEVs. If no available
predefined LDEV exists on the array within the tolerance level (between 2 and 3 GB in the previous
example), the LUN creation request fails.
When tolerance level is set to 0, to create a LUN you must specify the exact LUN size (in bytes)
of the unassigned LDEV.
For example:
DISKRAID> create lun parity size=2461040640B
The exact size of an OPEN-3 volume is 2,461,040,640 bytes.
3. For VDS, browse to set the log file path. If you do not specify a log path, logs are created
automatically in the hardware provider installation directory.
4. When finished setting VDS options, click OK.
Setting VSS options
1. To set VSS options, open the VSS configuration utility and click the VSS Hardware Provider
Options tab.
2. Use the Managed storage arrays list to choose the array you want to configure.
Installing HP hardware providers for HP P9000 disk arrays40