On 2007.05.17. 23:52, Florian Heigl wrote: > Hi, > > 2007/5/17, Rich <[EMAIL PROTECTED]>: >> is there a functionality (or planned functionality) in bacula to allow >> two or more server instances work in a way similar to a cluster ? > > no, and maybe > >> that would probably include two separate instances of director, storage >> daemon and database that would be able to share/sync information about >> jobs and job data. > > that's likewise an active-active cluster then, or at least if one gets > that far there's not much reason to stop short of it. but, this is a > feature not even most of the highend backup utilities i know easily > provide.
i haven't verified this, but i was told tivoli does this ;) >> file daemons would probably have two director access configured, with a >> way to set a "preferred" one, which would always contact particular >> client, except in cases when the preferred one is down. >> >> with an older version of bacula i have now, failed first server would >> require manual reconfiguring of all clients, and it also requires >> syncing data separately from bacula. >> >> in case of geographically distributed servers there also is no way to >> tell backup jobs to go to a particular server first, so there's >> increased network traffic as well. >> >> i've searched documentation and mailing list archives, but best i could >> find was about clustered services backup. > > if you search the archives you might be able to find an old mail > inquiring about this; as far as i remember kern stated that at the > moment this would require addition of a lot of table locking which > isn't there. the database syncing itself is less of an issue, but the > state information can't be shared at the moment. > > I'm taking a stake on using a cluster-aware filesystem beneath the > bacula daemons for easy failover, but this is not able to deal with > 'Geocluster'-Like scenarios either. quite useful feature also would be the ability to set preferred server for cases when services are geographically distributed alongside backup servers. i'll try to submit a correct feature request as martin suggested (even though this probably is worst time to do so :) ) > Florian -- Rich ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
