Hello, pon., 29 sty 2024 o 05:38 Rob Gerber <r...@craeon.net> napisał(a):
> Radosław, thank you for your reply! Useful information. > > Regarding virtual full backups, because I am backing up via my single SAS > LTO8 drive, and because making a copy job requires an input device and an > output device, the information you shared leads me to expect that I am > unable to do virtual full backups with my Bacula community edition unless I > either upgrade to bacula enterprise edition > Bacula Enterprise Edition behaves the same for Tape devices. It does references with deduplication storage only. > or purchase another LTO8 drive. > In this case this is the only solution. > My tape changer does have room for such a drive, but the expense would > have to be justified to my client. > > I agree with you about manually purging volumes being dangerous and really > not advisable at all. The problem I'm facing is that I don't see a better > way to meet my client's needs otherwise. > > For reference, a full backup of this dataset takes 2-3 weeks at the > average tape write rate of about 170MB/s. > My very brief calculation (3 weeks with 170MB/s) shows 308448000 MB of backup storage, so about 300PB. Well in this case you should split your backups to multiple Tape drives to simply increase a throughput. Q: What tape library are you using? > For further reference, acquisition of the raw files is expensive, > requiring that professionals be paid to go to location and capture footage. > This places a value on the data, not counting the cost if we disappoint my > client's customer by losing the data for the shoots they arranged. > If part of your data never changes then you should backup it a limited number of times and use it as a long-term archive. So, I would go for defining multiple backup sets and not for virtual full or something. YMMV. best regards -- Radosław Korzeniewski rados...@korzeniewski.net
_______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
