On Sat, Dec 30, 2017 at 03:02:05PM -0500, Jon LaBadie wrote: > On Sat, Dec 30, 2017 at 08:33:42AM -0500, Ned Danieley wrote: > > > > and on the other side of the coin, is there any way to encourage the planner > > to do more level 0 dumps in a given day? > > > > I occasionally find, often after a kernel update/reboot, that amanda > > thinks that a large number of DLE are 'new', and fairly quickly moves them > > up > > to level 2. but then the planner leaves them at L2 for days or weeks, at the > > same time using less than 1 TB of my 2.5 TB tape. > > > > I know that I can force a level 0, but that has to be done on each DLE. it > > seems like there should be a way to tell just amanda to use a larger > > fraction of the tape, but I can't figure it out. > > > > As an ideal, amanda tries to get consistant size dumps > each run of amdump. As an approximation this size can be > estimated (using post-compression data) as the sum of > all level 0's divided by the number of runs per dumpcycle > plus the average daily level 1 sizes. > > So you can get larger runs by three means, get more data > (bigger level 0's), become more active (bigger level 1's) > or shorten the dumpcycle (or runs/dumpcycle).
okay, that's what I wanted to know. I'll try shortening the dumpcycle. thanks -- Ned Danieley (ned.danie...@duke.edu) Department of Biomedical Engineering Box 90281, Duke University Durham, NC 27708 (919) 660-5111 http://dilbert.com/strips/comic/2012-02-11/
