Hello Eric, Eric Bollengier wrote: > Hello Sebastian, > > On 25/08/2011 22:05, Sebastian Herbszt wrote: >> I am trying to estimate the effort required to create an Oracle MML which >> can interact with Bacula. >> Unfortunatelly i am unsure about its design: >> >> Backups are taken with RMAN and the MML has to connect to Bacula. According >> to the "Projects" >> file [1] client initiated backups aren't supported, so the MML has to >> connect to the director. Once >> connected it will have to run a job. The FD likely needs a plugin to >> interact with the MML (data and >> control path). >> >> How can the MML communicate its intentions to Bacula? It doesn't seem to fit >> into a "job" approach. > > Perhaps you can start by explaining a bit how MML works, and what is the > typical event sequence involved. > > Bye
the Oracle Server can load a custom Media Manager Library (MML). This library has to provide functions [1] which are used by the Oracle Server if a Recovery Manager (RMAN) initiated backup to tape is requested. According to [1] those functions are "sbtinfo, sbtread, sbtwrite, sbtremove, sbtopen, sbtclose, sbtinit". I assume the following event sequence: - RMAN connects to an Oracle Server process which loads the MML - RMAN requests a backup to tape - Oracle Server process calls sbtinit - Oracle Server process calls sbtopen - Oracle Server process calls sbtwrite - Oracle Server process calls sbtclose - RMAN reports backup completion Sebastian ------------------------------------------------------------------------------ EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev _______________________________________________ Bacula-devel mailing list Bacula-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-devel
