On Thursday 14 May 2009, Dustin J. Mitchell wrote: >On Thu, May 14, 2009 at 10:06 AM, Brandon Metcalf > ><[email protected]> wrote: >> Yep, this makes sense based on the notes from the planner. I guess >> the only reason it would be a problem is if I'm running out of space >> on which I stored the backups? > >This is one of many reasons that oversubscribing your vtapes is a >problematic configuration. If your vtapes are oversubscribed, you >need to pay *very* close attention to what Amanda is doing, and make >adjustments early, before Amanda finds a vtape with 0kb available. > >Dustin
Very true Dustin. Which is why I generally take the 3/4ths rule, that of figuring how many tapes in a tapecycle will fit in the allocated space. In my case a terrabyte drive, 30 vtapes so I'm set at about 30GB per vtape & averaging less than half that. I am not to the end of the first tapecycle since re-starting with a new drive, and at tape 17, df says: /dev/sdc1 961432072 378596940 533997132 42% /amandatapes So I may reduce the dumpcycle from 4 to 3 eventually. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Living on Earth may be expensive, but it includes an annual free trip around the Sun.
