> > On 02/11/11 14:30, David Noriega wrote: > > I'm backing up our home directories, about 10TB. I haven't really > > timed things out yet, so I'm not sure if a full backup would finish in > > time. But its the schedule the boss wants. > > I guess you won't know until you try it. > > Is the concern that the homedirs are all on one big server, and that you > therefore have a single 10TB dataset to scan for changes? If that's the > case, one thing that other users have reported good results with is > partitioning the homedirs into groups, so that you end up with say ten > 1TB groups or even twenty 500GB groups, and back the groups up as > separate jobs that run in parallel. This can give you a big speedup for > incrementals, which typically spend most of their time scanning for > changed files and relatively little actually backing up the changed files. >
And assuming your scheduling requirements allow it, splitting up the dataset also allows you to stagger your full backups, so groups 1-5 might do a full backup on the 1st Friday, 6-10 on the 2nd Friday, etc, which is more likely to be able to fit into whatever 'after hours' windows you have. James ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
