> But will this speed up my backups? Generally speaking, should Bacula be > able to write two the two tapes devices more quickly than it can write > to one? The unit in question is a Tandberg Data StorageLibrary T24 LTO > with two serial attached scsi LTO4 tape devices, attached to a server > running Centos 6.2.
It will not speed up a single job since 1 job can not use more than 1 drive however if you have concurrent jobs with spooling and you can provide enough bandwidth to keep up with the drives it can speed up multiple jobs. Remember that at 2:1 compression these LTO4 drives write at 120MB /s each so you will need to have a raid array (raid 0 maybe) or fast SSD for your spool location and this raid probably should not be on the same drives as your source data. John ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users