On Sat, 2011-09-03 at 07:42 -0400, John Drescher wrote: > On Sat, Sep 3, 2011 at 6:32 AM, Craig White <craigwh...@azapple.com> wrote: > > Have been tinkering with spooling... 1 server (perhaps 1.6 TB of backup > > data) and 20 clients (varying from 30 - 400 GB per client). > > > > It is sort of difficult to test since I don't really know what is going > > to happen with a FULL backup of many TB of data until it actually runs > > and it's not the sort of thing I want to do for fun. > > > > SD has 'Maximum Spool Size = 750G' > > > > Disk has approximately 860G free when not backing up/spooling > > > > Allowing 3 simultaneous jobs at a time. > > > > Last month - this setup worked well... cut my backup time in half but > > that of course was incremental backups but worked rather poorly for my > > first 'Full' backup. > > > > I am thinking that the local server (running SD & Director w/ 1.6 TB of > > backup data) swamped the spool and so I am thinking of turning off > > spooling for this system - possibly putting it a lower Priority level so > > it completes first but I would rather have the first couple of clients > > spool while the server is being backed up. > > > > Any other suggestions? > > > > If I have a Maximum Spool Size of 750G, should I also set Maximum Job > > Spool Size of 250G to allow for 3 simultaneous jobs? > > > > What exactly is the problem? I have way more than 20 clients but I > instead use a 10GB spool file and allow 5+ clients to backup at the > same time. Individual rates are not great but with spooling the tape > drives are usually busy. ---- right now, the problem would appear to be a very high cpu from the SD
It appears that I am also swapping heavily and this is on a lightly used server. I gather that the large spools are the issue and I think you have clued me in... I should probably make much smaller spools and allow more simultaneous jobs and thereby not overload the system with huge spools. Craig -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
