Up to and including NBU 5.1, we backed up clustered applications on HP Serviceguard clusters, Sun clusters and even MS clusters using the same method. Each of the physical cluster nodes was an NBU SAN Media Server, with it's own storage unit(s), but we would also define a storage unit for each clustered application. These storage units would have the applications "virtual hostname" defined as their media server. The clustered application's backups would be use the virtual hostname as their client name, and would be directed to their "virtual storage unit", which would utilise the Media Manager configuration of the underlying real Media Server.
This meant if the application failed over to another node, the storage unit effectively failed over with it, meaning backups always ran locally on the media server, no matter which node the application was running on. Does anyone know if similiar functionality can be achieved with NBU 6.5? This cluster is actually Oracle 10 RAC running on unclustered Redhat 5, but the concept is similar to the other clusters in that the database I am backing up (using RMAN) uses a virtual hostname and could be active on any of the phyiscal nodes. Each of the physical nodes is a SAN Media Server. Simply adding a SERVER= entry for the virtual hostname does not work. I've tried using nbemmcmd -addhost to add the virtual hostname as a media server, which seems to work, however it appears as a "disk only" media server. The nbemmcmd -addalias looks interesting, but the alias name still needs to be tied to a physical server name. I need some way of defining a "floating" alias for a media server. I've also tried MUST_USE_LOCAL_DRIVE, and creating a storage unit with "Any available" as the media server. This works perfectly if I am backing up the physical server hostname, but if I am backing up the virtual hostname, it is not recognised as a media server with local tape and the backup is sent to some other storage unit. There must be some way to do this. I wonder if I am over thinking things and not seeing something incredibly obvious. Any ideas appreciated. - Dean _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu