"Cesare Montresor" <[EMAIL PROTECTED]> kirjoitti viestissä news:[EMAIL PROTECTED] >I need to backup about 6 windows servers, one is a storage server, > others are domain controllers and sql servers. > All servers, except for storage, will produce a single backup file (huge). > In my mind i need something like that: > > - 7 volumes > - each sunday first volume is erased and a new full backup is done. > - other days same thing, but incremental. > > (i hope is not a foolish thing) >
If I got your idea correctly, you would have 7 volumes, one of them holding the full backup of Sunday. So, what if... something crashes on Sunday right after recycling the full backup volume, before a new full backup would be finished (maybe a weekly period of an hour or two, when your server is running at full throttle due to the backup job)? Then you wouln't have any full backup left any more, and the incrementals won't help you very much alone. I recommend adding one more volume, to the total of 8. If all the volumes are of the same physical size (~similar tapes) you could always recycle the oldest, then full backup would fit to any of them, and the tapes would experience same usage on average, although the ones holding the incrementals would keep being less full that week. Actually, this way you could consider making differential backups instead of incremental ones. Other way, have two bigger volumes for full backups, and always recycle the older of them. This way you would actually have both full backups available for almost 2 weeks, and you could store them in separate locations etc... Then six (smaller) ones for the incrementals, just recycle the oldest. And keep in mind that to recover the system on Saturday, you'll need full backup and all the 6 incrementals. -- TiN ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
