Managing HP Serviceguard for Linux Ninth Edition, April 2009

Viewing Package Dependencies
The cmviewcl -v command output lists dependencies throughout the cluster. For a
specific package’s dependencies, use the -p<pkgname> option.
Cluster Status
The status of a cluster, as shown by cmviewcl, can be one of the following:
• up - At least one node has a running cluster daemon, and reconfiguration is not
taking place.
• down - No cluster daemons are running on any cluster node.
• starting - The cluster is in the process of determining its active membership.
At least one cluster daemon is running.
• unknown - The node on which the cmviewcl command is issued cannot
communicate with other nodes in the cluster.
Node Status and State
The status of a node is either up (active as a member of the cluster) or down (inactive in
the cluster), depending on whether its cluster daemon is running or not. Note that a
node might be down from the cluster perspective, but still up and running Linux.
A node may also be in one of the following states:
• Failed. A node never sees itself in this state. Other active members of the cluster
will see a node in this state if the node is no longer active in the cluster, but is not
shut down.
• Reforming. A node is in this state when the cluster is re-forming. The node is
currently running the protocols which ensure that all nodes agree to the new
membership of an active cluster. If agreement is reached, the status database is
updated to reflect the new cluster membership.
• Running. A node in this state has completed all required activity for the last
re-formation and is operating normally.
• Halted. A node never sees itself in this state. Other nodes will see it in this state
after the node has gracefully left the active cluster, for instance with a cmhaltnode
command.
• Unknown. A node never sees itself in this state. Other nodes assign a node this
state if it has never been an active cluster member.
Package Status and State
The status of a package can be one of the following:
• up - The package master control script is active.
• down - The package master control script is not active.
222 Cluster and Package Maintenance