Hello: We're having serious issues with NFS properly releasing a DRBD-based device when the resource tries to migrate. We repeatedly end up with "device or resource busy" errors when unmounting, and if we do a lazy umount (umount -l) then DRBD will not allow the resource to transfer, stating "device is open by somebody".
The somebody appears to be NFS, as if we kill all NFS processes, it finally releases them. However, this isn't an option, as we have multiple NFS-exported resources, and we can't kill them all to migrate one. Is there a way to find which NFS processes are using the specific mount and kill only those, or is there another way to reset things without totally restarting NFS? We don't want to lose existing mounts other than the resource we're actually migrating. Thanks, Mike Sweetser _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
