Building Disaster Tolerant Serviceguard Solutions Using Metrocluster with Continuous Access XP
Creating the Cluster
Chapter 3 171
Creating the Cluster
Create the cluster or clusters according to the process described in the
Managing Serviceguard user’s guide. In the case of a metropolitan
cluster, create a single Serviceguard cluster with components on
multiple sites. In the case of a continental cluster, create two distinct
Serviceguard clusters on different sites.
NOTE Do not configure an XP series paired volume, PVOL or SVOL, as a
cluster lock disk. A cluster lock disk must always be writable. Since it
cannot be guaranteed that either half of a paired volume is always
writable, neither half may be used as a cluster lock disk. A configuration
with a cluster lock disk that is part of a paired volume is not a supported
configuration.