On 11/10/06, Kern Sibbald <[EMAIL PROTECTED]> wrote: > On Friday 03 November 2006 11:27, Jaap Stolk wrote: > > I did some more reading and found that the differential backup only > > looks at the file date/time, exactly like the incremental backup. so > > this is no reason to use a differential backup. > > Except that doing Differential backups allows you to restore faster and to > recycle your Incremental backups faster.
I completely agree that differential backups are a must if incremental backups must be recycled fast (because of there size) or when restore speed is important (especially if using tapes instead of disk). Maybe my situation is a bit unusual, but I have about 50 GB backed up, but the hourly incremental backup only adds about 3 MB on average, so I can store a lot of incremental backups for a long time. I'm using two pools (for each client), one for full backups (every 3 months) and one for incremental backups (hourly during work hours). The debian backup box doesn't run 24-7, it only makes hourly backups while switched on. The full backup volumes hold only a single full backup. The incremental volumes are used for 3 months. My goal was restoring accidentally deleted or overwritten files. I have a separate backup system for the normal safety backup (daily sync to external USB drives). The whole point was to keep the incremental backups for as long as possible. I'm aiming to keep the last 3 incremental volumes (9 month) and maybe the last 6 full backups. (1.5 year) I set separate pools for full/incremental backups in the job configuration. this works well, but I can't restore files using (win32) xwconsole anymore. It complains that there isn't a full backup because the full backup is in another pool. but this is probably caused by a slight version mismatch between bacula and wxconsole. Anyway, restore using bconsole works fine and I can even do that remotely using putty. It took a while experimenting and setting up, but I'm very pleased with Bacula. :-) Jaap. ------------------------------------------------------------------------- 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
