HP 3PAR Geocluster Software - Manual (Page 24)

3PAR GeoCluster 1.0.0.14 for Windows User’s Guide
320-200263 Page 24

In the Policies tab of the 3PAR GeoCluster for Windows resource, it is advised to set the
Pending timeout option to a value greater than 30 seconds. Depending on the context or the
cluster design, it might be advised to set it higher.
3.4.3 Remote Copy Groups Configuration

While the 3PAR GeoCluster for Windows resource checks certain parameters on the local
InServ storage array (see Configuring 3PAR GeoCluster for Windows resource parameters), no
verifications are made on the remote site storage array. It is the administrator’s
responsibility to ensure the Remote Copy groups are properly configured.

A given Remote Copy group may only have one given 3PAR GeoCluster for Windows resource
pointing to it.

A given 3PAR GeoCluster for Windows resource may point to only one Remote Copy group.

VVs should be present on cluster nodes on both sites and have the same LUN number set on
each node.

VSS Snapshots of volumes located in 3PAR GeoCluster for Windows-managed VVs, if created
on a different volume than their parent volume, should in any case be created within the VVs
of the Remote Copy group. Creating these snapshots outside the Remote Copy group will
result in data loss if an inter-site failover occurs.

Remote Copy groups should be set to “auto_recover” to allow Remote Copy groups to
start when Remote Copy links are brought up after an inter-site link failure.