Managing HP Serviceguard for Linux, Tenth Edition, September 2012

You can disable package switching to particular nodes by using the -n option of the
cmmodpkg command. The following prevents pkg1 from switching to node lptest3:
cmmodpkg -d -n lptest3 pkg1
To permanently disable switching so that the next time the cluster restarts, the change
you made in package switching is still in effect, change the auto_run flag in the package
configuration file, then re-apply the configuration. (See “Reconfiguring a Package on a
Running Cluster ” (page 281).)
Maintaining a Package: Maintenance Mode
Serviceguard A.11.19 provides two ways to perform maintenance on components of a
modular, failover package while the package is running. (See Chapter 6 (page 199) for
information about package types and modules.) These two methods are called
maintenance mode and partial-startup maintenance mode.
• Maintenance mode is chiefly useful for modifying networks while the package is
running.
See “Performing Maintenance Using Maintenance Mode” (page 258).
• Partial-startup maintenance mode allows you to work on package services, file
systems, and volume groups.
See “Performing Maintenance Using Partial-Startup Maintenance Mode” (page 259).
• Neither maintenance mode nor partial-startup maintenance mode can be used for
legacy packages, multi-node packages, or system multi-node packages.
• Package maintenance does not alter the configuration of the package, as specified
in the package configuration file.
For information about reconfiguring a package, see “Reconfiguring a Package”
(page 280).
NOTE: In order to run a package in partial-startup maintenance mode, you must first
put it in maintenance mode. This means that packages in partial-startup maintenance
mode share the characteristics described below for packages in maintenance mode,
and the same rules and dependency rules apply. Additional rules apply to partial-startup
maintenance mode, and the procedure involves more steps, as explained underPerforming
Maintenance Using Partial-Startup Maintenance Mode.
Characteristics of a Package Running in Maintenance Mode or Partial-Startup
Maintenance Mode
Serviceguard treats a package in maintenance mode differently from other packages in
important ways. The following points apply to a package running in maintenance mode:
• Serviceguard ignores failures reported by package services, subnets, and file systems;
these will not cause the package to fail.
Maintaining a Package: Maintenance Mode 255