Using Serviceguard Extension for RAC, 5th Edition, June 2007

Maintenance and Troubleshooting
Reviewing Cluster and Package States with the cmviewcl Command
Chapter 4200
Reviewing Cluster and Package States with
the cmviewcl Command
A cluster or its component nodes may be in several different states at
different points in time. Status information for clusters, packages and
other cluster elements is shown in the output of the cmviewcl command
and in some displays in Serviceguard Manager. This section explains the
meaning of many of the common conditions the cluster or package may
be in.
Information about cluster status is stored in the status database, which
is maintained on each individual node in the cluster. You can display
information contained in this database by issuing the cmviewcl
command:
# cmviewcl -v
The command when issued with the -v option displays information
about the whole cluster. See the man page for a detailed description of
other cmviewcl options.
TIP Some commands take longer to complete in large configurations. In
particular, you can expect Serviceguard’s CPU utilization to increase
during cmviewcl -v as the number of packages and services increases.
You can also specify that the output should be formatted as it was in a
specific earlier release by using the -r option indicating the release
format you wish. Example:
# cmviewcl -r A.11.16
See the man page for a detailed description of other cmviewcl options.
Types of Cluster and Package States
A cluster or its component nodes may be in several different states at
different points in time. The following sections describe many of the
common conditions the cluster or package may be in.