I see from thread52-624860 that this has been an ongoing problem. We're just migrating from Tru64 to AIX 5.2. I have a recent fix kit installed, and I've configured HACMP for Oracle 10g. I'm getting the dreaded "cannot unmount" despite the fact that fuser and lsof can't find any open files. svmon -S shows activity on the filesystem that won't unmount, but I don't know what's got its hooks in there. Rebooting will fix it, but that's just silly. I'm shocked if that's what IBM's answer to this is because what's the point of HACMP if it can't handle this? I'm also horrified that the previous thread lasted two years. I guess I'm getting used to open source.
The bugger of it is that there appears to be a race condition because it doesn't happen on every HACMP failover. There are NFS shares in there as well as a namefs remount of the oradata directories to enable cio. Yes, I know it's not simple. You should see the rest of the environment.
If you have any suggestions for working through this I'd really appreciate hearing about them. I've been through the obvious stuff; what I'm looking for is figuring out what svmon -S is telling me and linking that back to something I can kill.
The bugger of it is that there appears to be a race condition because it doesn't happen on every HACMP failover. There are NFS shares in there as well as a namefs remount of the oradata directories to enable cio. Yes, I know it's not simple. You should see the rest of the environment.
If you have any suggestions for working through this I'd really appreciate hearing about them. I've been through the obvious stuff; what I'm looking for is figuring out what svmon -S is telling me and linking that back to something I can kill.