On Thursday, September 22, 2011 07:42:57 PM Charles Curley did opine: > On Thu, 22 Sep 2011 14:06:14 -0400 > > gene heskett <[email protected]> wrote: > > On Thursday, September 22, 2011 01:43:56 PM Charles Curley did opine: > > > > > > > > I have now added another 20Gb to the vtape size, so it should flush > > the leftovers and do a normal backup tonight. > > > > But as far as any 'balance' is concerned, I am under the impression > > the scheduler is blindfolded and playing "pin the tail on the donkey" > > as it doesn't seem to even be approaching a balanced use after nearly > > 2 more weeks of every night runs. > > > > [root@coyote Daily]# su amanda -c "amadmin Daily balance" > > > > due-date #fs orig MB out MB balance > > > > ---------------------------------------------- > > > > 9/22 Thu 0 0 0 --- > > 9/23 Fri 2 18976 10600 -18.5% > > 9/24 Sat 10 21077 9546 -26.6% > > 9/25 Sun 21 21436 13499 +3.7% > > 9/26 Mon 3 31429 31429 +141.5% > > > > ---------------------------------------------- > > TOTAL 36 92918 65074 13014 > > > > (estimated 5 runs per dumpcycle) > > > > So that last one on the 26th will do this all over again. That sort > > of a report is beginning to develop a pretty high vacuum here. I can > > recall, back when my system was smaller and I was using 4Gb tapes, it > > could stay at 94% +- 3% media use for weeks at a time. Now, even > > before the extended shutdown, I am running out of tape because it > > decides to do level 0's of /usr/movies (17Gb) and /home (20 Gb) on > > the same nights. That sucks. > > Gene: > > backup@dzur:~$ amadmin DailySet1 balance > > due-date #fs orig GB out GB balance > ---------------------------------------------- > 9/22 Thu 1 13 10 +233.3% > > 9/26 Mon 1 3 2 -33.3% > 9/27 Tue 1 5 5 +66.7% > 9/28 Wed 1 10 8 +166.7% > 9/29 Thu 1 3 3 +0.0% > 9/30 Fri 1 7 6 +100.0% > > 10/03 Mon 25 2 2 -33.3% > 10/04 Tue 1 4 4 +33.3% > 10/05 Wed 3 3 2 -33.3% > 10/06 Thu 1 4 4 +33.3% > ---------------------------------------------- > TOTAL 36 54 46 3 > (estimated 15 runs per dumpcycle) > backup@dzur:~$ > > > And your problem is?
Thanks for confirming what I said. Recent work seems to have destroyed the planners balancing. IMO, when it finds it has lots of room, it 'promotes' too aggressively, but it may be repeating level 0's on the smaller dle's, leaving some medium sized ones to expire and need a level 0 when the big stuff comes around for a level 0, and this seems to disagree with a 5 day cycle. > Consider enabling tape splitting. That might use your disk space more > efficiently than increasing the "size" of the tape. As in runtapes >1? I considered that, and may yet. 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) Put not your trust in money, but put your money in trust.
