Hello, We are currently deploying some servers in a failover situation for high availability using RHEL AS 3. I have followed the Red Hat Cluster Suite: Configuring and Managing a Cluster guide to set up a clustered NFS service, but failover just does not happen. We have two nodes, hydradb4 and hydradb5 with a virtual ip that maps to the name hydradb. They both have access to a shared disk /dev/emcpowera3 with /dev/emcpowera1 and /dev/emcpowera2 being the raw devices for the cluster shared state. At this stage I can easily move the service between the two nodes with no problem and the disk moves with it with ease. /dev/emcpowera3 is now being mounted on /export/oracle/PRD/920_32 and is being shared over nfs as /export/oracle/PRD/920_32. Again, I can move the service safely from node to node without a problem. When any host has hydradb:/export/oracle/PRD/920_32 mounted however, if I try to move or stop the service I get an error: <err> service error: 'umount /dev/emcpowera3' failed (/export/oracle/PRD/920_32 ), error=1 <err> service error: umount: /export/oracle/PRD/920_32: device is busy <err> service error: umount: /export/oracle/PRD/920_32: device is busy <err> service error: Cannot stop filesystems for hydradb I have the Force Unmount option checked for the nfsexport in the service as recommended. Does this error sound familiar? Does anyone know how I can get the clustered nfs service to work as advertised? - Thanks in advance, Richard Bailey, Technical Analyst -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjecthttps://www.redhat.com/mailman/listinfo/redhat-list
