On Mon, 16 Jul 2007, Jose Luis wrote: > Hi Alan: > > Thanks for your answer. I think that I don't understand a lot backup system. > I want to use one tape every day to have diferent versions of the same file > (if the file changes in diferent days). But after your answer I'm thinking > that one tape can save diferents versions of the same file. This is true??
Yes. There is no reason a tape cannot have many sets of data on it, as long as the position on the tape is tracked. This is the function of the bacula database. > I must supose that one tape can save diferents sessions while it have > space. If this is true, I will use two tapes, one for full and one for > every day. This is perfectly possible, but why even do that? Bacula has a lot of intelligence for backing up and what makes sense in a human-operated system (tar, etc) is not so sensible for an autmoated system. If (daily incrementals + full backup) will fit on less than one tape, you may as well put them on one tape. The reason I change tapes immediately after the full backup is that the full backup is "more important" than the incrementals - one can restore a full backup with no incrementals and lose some data, but it is impossible to restore incrementals without the full backup... ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
