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

4. Select a snap type.
• Business Copy
1. Select the VSS modes you want to enable as explained below. Repeat for each array to
be managed.
• Select VSS compliant mode if you want the provider to delete the paired relationship
between PVOL and SVOL after the shadow copy is made.
• Select Resync mode if you want the provider to retain the paired relationship after
making a shadow copy to resynchronize the data on the PVOL and SVOL pairs when
the next shadow copy is made.
If you select Resync Mode, the provider selects the default range of Business Copy
mirror unit numbers (MU# range). The default MU# range is 0–2. You can override
the default MU# range by specifying a custom range in the MU# range box. (See
the HP Storage XP Business Copy Software User's Guide for information about mirror
unit numbers.)
Selecting Resync Mode enables the option Recycle deleted shadow copies. When
this option is selected and a shadow copy is deleted, the paired relationship between
PVOL and SVOL LDEV will be maintained and the SVOL can be reused to create a
shadow copy of the same PVOL. If the Recycle deleted shadow copies option is not
selected and a shadow copy is deleted, the PVOL and SVOL of the deleted shadow
copy are split and the SVOL can be used for a new shadow copy.
2. Select one of the SVOL options.
• Normal LDEV — This option considers normal LDEV of the same size as PVOL in SVOL
host group irrespective of the PVOL type which can be either normal LDEV or TP-VOL.
• Auto — If PVOL is the normal LDEV, then hardware providers will consider normal
LDEV the same size as PVOL. If PVOL is the TP-VOL, hardware providers will search
for a matching TP-VOL associated with any pool other than PVOL’s associated pool.
If there is no matching TP-VOL associated with other pools, hardware providers will
check for a matching TP-VOL associated with PVOL’s pool.
• TP-VOL — This option considers thin provisioning V-VOL of the same size as PVOL
in SVOL host group. You can select the default option or specify a pool ID.
Installing HP hardware providers for HP P9000 disk arrays42