Managing Serviceguard 14th Edition, June 2007

Cluster and Package Maintenance
Managing the Cluster and Nodes
Chapter 7 339
NOTE HP recommends that you remove a node from participation in the cluster
(by running cmhaltnode as shown below, or Halt Node in Serviceguard
Manager) before running the HP-UX shutdown command, especially in
cases in which a packaged application might have trouble during
shutdown and not halt cleanly.
Use cmhaltnode to halt one or more nodes in a cluster. The cluster
daemon on the specified node stops, and the node is removed from active
participation in the cluster.
To halt a node with a running package, use the -f option. If a package
was running that can be switched to an adoptive node, the switch takes
place and the package starts on the adoptive node. For example, the
following command causes the Serviceguard daemon running on node
ftsys9 in the sample configuration to halt and the package running on
ftsys9 to move to an adoptive node The -v (verbose) option prints out
messages:
cmhaltnode -f -v ftsys9
This halts any packages running on the node ftsys9 by executing the
halt instructions in each package's master control script. ftsys9 is
halted and the packages start on their adoptive node.
Halting the Entire Cluster
You can use Serviceguard Manager, or Serviceguard commands as shown
below, to halt a running cluster.
Use cmhaltcl to halt the entire cluster. This command causes all nodes
in a configured cluster to halt their Serviceguard daemons. You can use
the -f option to force the cluster to halt even when packages are
running. You can use the command on any running node, for example:
cmhaltcl -f -v
This halts all the cluster nodes.