Specifications
Maintaining a LifeKeeper Protected System
l mount point is busy
l mount failure
l LifeKeeper internal error
Maintaining a LifeKeeper Protected System
When performing shutdown and maintenance on a LifeKeeper-protected server, you must put that
system’s resource hierarchies in service on the backup server before performing maintenance. This
process stops all activity for shared disks on the system needing maintenance.
Perform these actions in the order specified, where Server A is the primary system in need of
maintenance and Server B is the backup server:
1. Bring hierarchies in service on Server B. On the backup, Server B, use the LifeKeeper
GUI to bring in service any resource hierarchies that are currently in service on Server A. This
will unmount any file systems currently mounted on Server A that reside on the shared disks
under LifeKeeper protection. See Bringing a Resource In Service for instructions.
2. Stop LifeKeeper on Server A. Use the LifeKeeper command /etc/init.d/lifekeeper
stop-nofailover to stop LifeKeeper. Your resources are now unprotected.
3. Shut down Linux and power down Server A. Shut down the Linux operating system on
Server A, then power off the server.
4. Perform maintenance. Perform the necessary maintenance on Server A.
5. Power on Server A and restart Linux. Power on Server A, then reboot the Linux operating
system.
6. Start LifeKeeper on Server A. Use the LifeKeeper command
/etc/init.d/lifekeeper start to start LifeKeeper. Your resources are now
protected.
7. Bring hierarchies back in-service on Server A, if desired. On Server A, use the
LifeKeeper GUI to bring inservice all resource hierarchies that were switched over to Server
B.
Maintaining a Resource Hierarchy
You can perform maintenance on a resource hierarchy while maintaining LifeKeeper protection of all
other hierarchies on the system. This involves taking the hierarchy in need of maintenance out of
service and then bringing it back in-service after you complete the maintenance tasks.
To perform maintenance on a resource hierarchy:
1. Take the hierarchy out of service. Use the LifeKeeper GUI to take as much of the resource
hierarchy out of service as you need to perform the maintenance. See Taking a Resource Out
of Service for instructions.
2. Perform maintenance. Perform the necessary maintenance on the resource hierarchy.
SteelEye Protection Suite for Linux205