When performing offline maintenance on a shared SCSI host adapter or a disk on a shared bus, you must stop LifeKeeper and power down all servers and shared disks. Perform these actions in the following order:
- Stop LifeKeeper. Use the Services tool to stop the LifeKeeper and LifeKeeper External Interfaces services on each SIOS Protection Suite server. Your resources are now unprotected.
- Shut down Windows. Shut down the Windows operating system on all servers in the cluster.
- Power down all servers.
- Power OFF all shared disks.
- Perform maintenance. Perform the necessary maintenance on the shared SCSI host adapter or shared disk.
- Power ON all shared disks.
- Power ON all servers, one at a time. Let each server boot the Windows operating system completely before powering on the next server.
- Start LifeKeeper. Log on as administrator, then use the Services tool to start the LifeKeeper and LifeKeeper External Interfaces services on each SIOS Protection Suite server. SIOS Protection Suite automatically mounts all shared file systems and restarts and brings into service all databases on shared disks.