"Jeremiah D. Jester" <jj...@u.washington.edu> kirjoitti viestissä news:14c6c8313f1842459faad0b3feb9e42c4af9c...@ads-mbx-02.exchange.washington.edu... > What I'm trying to determine here is a onsite, offsite retention period. > For example, when I send the tapes away when should I have them returned > to me to add them in a blank tapes pool. I realize that the Pool > directive specifies Volume Retention days. Maybe I'm thinking about this > wrong? Any advice would be appreciated. > JJ >
If I'm not mistaken, what you need for this purpose is "volume last written" plus "volume retention time". The latter is a constant set by you, the first is exactly known when you take the volume offsite. This isn't the date when the volume actually will be needed for the next write, but there isn't a simple algorithm to estimate the need more precisely, and this criteria at least should fulfill the data safety (offsite storage) requirement for a chosen backup policy. The exact date when a spesific tape will be needed depends on how many "extra" volumes you have etc, and requires a sort of fuzzy logic or an educated guess to be determined. Waiting for until Bacula recycles the volume would be too late, it won't happen until the volume is urgently needed. AFAIK, _after_ the volume retention has expired, the proper order to put the volumes back to the tape library would be oldest "last written" goes first, ie. the volume retention would be meaningless after it has expired. -- TiN ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
