On Wednesday 11 October 2006 20:28, Alan Davis wrote: > > I want to thank Kern et al for the excellent documentation for Bacula. > The number of options and capabilities of the system is staggering and > the documentation reflects that in it's depth and complexity. Everything > is in there - you just need to read it all and consider the implications > of all of the options in order to find the correct settings for the more > complex situations.
Thanks. I'm going to try to break it up into a few smaller manuals for the next release after 1.40. Hopefully, that will reduce the feeling of being overwhelmed by the sheer size of the thing ... > > The option that enables Bacula to automatically select a 2nd tape drive > rather than interleaving backups to a single drive is found in the > director configuration file for the JobDefs and Jobs settings. > > Prefer Mounted Volumes = no > > You will also need to increase 'Maximum Concurrent Jobs' appropriately. > > Keywords: bacula simultaneous jobs autochanger concurrent interleave > multiple drives > > ---- > Alan Davis > Senior Architect > Ruckus Network, Inc. > 703.464.6578 (o) > 410.365.7175 (m) > [EMAIL PROTECTED] > alancdavis AIM > > > -----Original Message----- > From: Alan Davis [mailto:[EMAIL PROTECTED] > Sent: Tuesday, October 10, 2006 3:51 PM > To: 'bacula-users@lists.sourceforge.net' > Subject: concurrent jobs on 2 drives > > Short version: What combination of directives will make bacula choose to > use both drives defined in the autochanger at the same time? > > Long version: > > I'm now at the next phase of implementation and want to be able to run 2 > jobs concurrently. The default behavior, once concurrent jobs are > enabled, is to write N jobs to the same volume, interleaving the data. I > have 2 drives and want one job to run on each. The section of the manual > that would seem to apply is in Configuring the Director under Maximum > Concurrent Jobs: > > "Please note that the Volume format becomes much more complicated with > multiple simultaneous jobs, consequently, restores can take much longer > if Bacula must sort through interleaved volume blocks from multiple > simultaneous jobs. This can be avoided by having each simultaneously > running job write to a different volume or by using data spooling, which > will first spool the data to disk simultaneously, then write each spool > file to the volume in sequence." > > The bit about "have each ... write to a different volume" seems to be > what I'm looking for, but I haven't found the combination of > settings/attributes that achieve it. > > Since in other sections of the manual and FAQ it suggests that you > should allow bacula to choose the volume that it wants to use, this > seems counter-intuitive. > > I've looked at Use Volume Once, Maximum Volume Jobs and retention and > recycle times directives but none of them seem appropriate. > > > ---- > Alan Davis > Senior Architect > Ruckus Network, Inc. > 703.464.6578 (o) > 410.365.7175 (m) > [EMAIL PROTECTED] > alancdavis AIM > > > > > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
