---------- Forwarded message ---------- From: John Drescher <dresche...@gmail.com> Date: Fri, Dec 4, 2009 at 2:48 PM Subject: Re: [Bacula-users] (Solved!) Writing too much data to tape? To: Jason Selwitz <jselw...@vvisions.com>
On Fri, Dec 4, 2009 at 2:38 PM, Jason Selwitz <jselw...@vvisions.com> wrote: > On Tue, 2009-11-24 at 08:50 -0500, John Drescher wrote: >> >> Do you have any GB+ files full of only zeroes? >> >> >> >> John >> > >> > Not that I am aware of, the majority of the data backed up is user >> > submitted production data so unless someone dropped some files like >> that >> > in there for some test purpose, I don't know of any, I recently >> > compacted the MySQL database however this issue had occurred prior >> to >> > that. the only significant event that comes to mind is that the >> server >> > was moved up a few U's in the rack a few weeks back. >> > >> >> You can check backup sizes using status client or the bacula logs. If >> you see a job with way more data than expected this could be the >> problem. >> >> John > > So it looks like I solved the issue I had where it looked like Bacula > was writing 10+ TB per tape. this issue seemed to only occur when I was > backing up extremely large file systems (2 TB, 10 TB, etc) and only when > attempting to back up the .snap directory on a FreeBSD file system, > apparently it was trying to back up all of the historical filesystem > snapshot data as though it was full size, this reporting a lot of extra > space on the tape, so excluding the .snap Directory fixed the problem. > Hope that is useful to others as well. > > Probably very large sparse files that will compress very very well. -- John M. Drescher -- John M. Drescher ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
