Managing Serviceguard Eighteenth Edition, September 2010

Serviceguard kills the script and marks the package “Halted.” In both cases, the
following also take place:
• Control of a failover package will not be transferred.
• The run or halt instructions may not run to completion.
• auto_run (automatic package switching) will be disabled.
• The current node will be disabled from running the package.
Following such a failure, since the control script is terminated, some of the package's
resources may be left activated. Specifically:
• Volume groups may be left active.
• File systems may still be mounted.
• IP addresses may still be installed.
• Services may still be running.
CAUTION: Do not use the HP-UX mount and umount commands in a CFS cluster;
use cfsmount or cfsumount. Non-cfs commands (such as mount -o cluster,
dbed_chkptmount, or sfrac_chkptmount) could cause conflicts with subsequent
command operations on the file system or Serviceguard packages. These mount
commands will not create an appropriate multi-node package, with the result that the
cluster packages are not aware of the file system changes.
In this kind of situation, Serviceguard will not restart the package without manual
intervention. You must clean up manually before restarting the package. Use the
following steps as guidelines:
1. Perform application-specific cleanup. Any application-specific actions the control
script might have taken should be undone to ensure successfully starting the
package on an alternate node. This might include such things as shutting down
application processes, removing lock files, and removing temporary files.
2. Ensure that package IP addresses are removed from the system; use the
cmmodnet(1m) command.
First determine which package IP addresses are installed by inspecting the output
of netstat -in. If any of the IP addresses specified in the package control script
appear in the netstat output under the Address column for IPv4 or the Address
column for IPv6, use cmmodnet to remove them:
cmmodnet -r -i <ip-address> <subnet>
where <ip-address> is the address in the Address or the Address column and
<subnet> is the corresponding entry in the Network column for IPv4, or the
prefix (which can be derived from the IPV6 address) for IPv6.
3. Ensure that package volume groups are deactivated. First unmount any package
logical volumes which are being used for filesystems. This is determined by
inspecting the output resulting from running the command bdf -l. If any package
Solving Problems 417