Viewing the Cluster Status

HACMP has a cluster status utility, the /usr/es/sbin/cluster/clstat. It reports the status of key cluster components—the cluster itself, the nodes in the cluster, the network interfaces connected to the nodes, and the resource groups on each node.
clstat is available in WebSMIT at the left side of the top-level menu. It displays an expandable list of cluster components along with their status. The cluster status display window shows information and status (up or down, online, offline or error) on cluster nodes, networks, interfaces, application servers and resource groups. For resource groups, it also shows the node on which the group is currently hosted.
Here is an example of the clstat output in WebSMIT. This is the left-hand side panel of the window:


Figure 2. clstat Output
Here is an example of the ASCII-based output from the clstat command, used on a Linux cluster with nodes named ppstest1 and ppstest2:
ppstest2:~ # /usr/es/sbin/cluster/clstat
clstat - HACMP Cluster Status Monitor
-------------------------------------
Cluster: test1234 (1148058900)
Wed May 17 16:45:41 2006
State: UP Nodes: 4
SubState: STABLE
Node: ppstest1 State: UP
Interface: tr0 (6) Address: 9.57.28.3
State: UP
Resource Group: rg1 State: On line
Node: ppstest2 State: UP
Interface: tr0 (6) Address: 9.57.28.4
State: UP
Resource Group: rg2 State: On line
Node: ppstest3 State: UP
Interface: tr0 (6) Address: 9.57.28.5
State: UP
Node: ppstest4 State: UP
Interface: tr0 (6) Address: 9.57.28.6
State: UP
Resource Group: rg3 State: On line
Resource Group: rg4 State: On line