Hello, 08.11.2007 11:32,, S. Kremer wrote:: > Hi, > > i have to backup a nas system with a total size of 6,5TB. At this > time the nas system only has ~2TB of data that have to backup but > in future, the next two years data will be increase up to 6TB. > > I have installed Debian Etch on the nas system with samba und > bacula as backup application. I use a Sony StorStation LIB-81 > autochanger with 7 200GB/520GB AIT4 tapes. In slot 8 there is a > cleaning tape.
7 slots à 200 GB is 1.4 TB. Adding compression (factor 2.6 is, typically, much too optimistic) you might end up at a bit above 2 GB. That's obviously not enough space to handle a full backup of 6 TB. > What is the best backup strategy for this scenario and how to > handle the tapes with bacula and the autochanger. You can run full backups only with intervention in between, which pretty much rules out unattended backups during the weekend. > I would like backup each day mo-do incrementally/differentially. That shouldn't be a problem with your setup. You should set up the necessary jobs and schedules yourself - or get commercial support if you don't want to. Examples are freely available here, advice too, but you should offer us a starting point, i.e. a configuration and any problems you encounter. > Each friday but the last friday of month i would like do a full > backup and even so the last friday of month. This will get difficult. > Is this a good concept for backup the data or has anyone here a > better suggestions. Basically, it's usable. Whatever strategy you implement should simply fit to your needs. If you want monthly full backups for archival, that can be done. Storing the full 6 TB during one weekend will more or less be impossible with your current equipment. > Stefan Arno -- Arno Lehmann IT-Service Lehmann www.its-lehmann.de ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
