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.
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
