On Thu, Oct 23, 2003 at 05:37:02PM +0200, Toralf Lund wrote: > > >>>runspercycle does not need to be changed. The "runtapes" means that > >>>for each run up to that number of tapes may be used (note: not "must"). > >>> > >>> > >>>You have to increase your tapecycle probably to cover the same > >>>dumpcycle(s), because you'll burn twice as much tapes for each run. > >>>(well, "burn", hopefully not litteraly). > >>> > >>> > >>I'm still not sure I understand. If I have > >> > >>runspercycle 2 > >> > >>and > >> > >>runtapes 2 > >> > >>will amanda try to distribute the full dumps across 4 tapes, or just 2? > >> > >>When I think about it, the first answer makes most sense, as the > >>parameter otherwise ought to have been called "tapespercycle". > >> > >> > > > >"Sense" is a funny thing. > > > >Amanda will "try" to fit each run on a single tape. But will use a > >second tape during that run if necessary. > > > Ah, I see. So it won't actually multiply tape size by runtapes when > trying to figure out how much it can write... I'm not sure the > functionaltiy is of much use to me then, but perhaps I could cheat and > pretend the tapes are "runtapes" times larger than they really are? > Won't buy you anything. Amanda will reach the actual end of the tape and not be able to go on to a second tape because runtapes is 1.
> > Thus the answer is "it depends". > >It will try to use 2 tapes, but may use 3 or 4. > > > >BTW I find it strange that an "archival" configuration would be setup with > >a dumpcycle > 0 (or 1?) and with runspercycle > 1. > > > >When I want an archive dump I want it to be the state of the system now. > >Not the current state of half the DLE's and incrementals from the last > >'archive' of the other half. Maybe that is just me ;) > > > > > The archival config disables incrementals, obsiously. And *of course* I > have to split the backup across several tapes; isn't the data in any > real setup larger than what fits on a tape? Total data, yes. Data per DLE, no. Because amanda can not deal with individual DLE's larger than a single tape capacity. But it will happily put 10 DLE's on the first tape, 20 on the second and 4 on the third if that is what fits, is needed, and runtapes is >= 3. > > But actually, one of the reasons why I'm asking about runtapes > 1 is > that I've considered setting up so that everything is dumped in one run... Assuming that each individual DLE, when given a level 0, fits on a single tape, then set dumpcycle = 0, runspercycle = 1, and runtapes = 1000. -- Jon H. LaBadie [EMAIL PROTECTED] JG Computing 4455 Province Line Road (609) 252-0159 Princeton, NJ 08540-4322 (609) 683-7220 (fax)
