On Thu, Feb 27, 2014 at 10:20:29PM +0000, Debra S Baddorf wrote:
> I believe the whole dump has to be done before it starts to write to tape.
> This prevents incomplete dumps from wasting space on the tape.
>
> I try to have numerous smaller DLEs, so that it takes several DLEs to fill a
> tape. Thus, when any one of them is finished, it can start going
> to tape. If you have only a single DLE which occupies the whole tape, then
> it does seem slower. In that case, perhaps you don't even
> bother with a holding disk?
>
> Deb Baddorf
Not sure about the newer technologies, but older tech would cause
the drive to "shoe shine" and cause unnecessary wear if it wasn't
kept streaming, so use of holding disk is still probably recommended,
even for a single DLE.
> On Feb 27, 2014, at 3:44 PM, Michael Stauffer <mgsta...@gmail.com>
> wrote:
>
> > Yes, it's 4.5TB.
> >
> > I's not clear to me from the docs whether a level 0 dump gets written fully
> > to holding disk before it gets streamed to tape, or if streaming starts
> > once one or more chunks have been written to the holding disk - anyone
> > know? I'd prefer the latter for performance reasons. If the former, then I
> > figure I'd need two tapes-worth of holding disk space since I have two tape
> > drives and have setup tape-parallel-writes as 2.
> >
> > -M
> >
> >
> > On Thu, Feb 27, 2014 at 3:43 PM, Jon LaBadie <j...@jgcomp.com> wrote:
> > On Thu, Feb 27, 2014 at 03:09:20PM -0500, Michael Stauffer wrote:
> > > Amanda 3.3.4
> > >
> > > Hi,
> > >
> > > Seems like I'm having trouble getting amanda to use my holding disk.
> > >
> > > Here's my setup in amanda.conf:
> > >
> > > define holdingdisk holdingdisk1 {
> > > directory "/mnt/amanda-holdingdisk1/"
> > > use 4500Gb
> > > chunksize 100Gb
> > > }
> >
> > Others pointed out the error, but is the size really 4.5 TeraBytes?
> >
> > --
> > Jon H. LaBadie j...@jgcomp.com
> > 11226 South Shore Rd. (703) 787-0688 (H)
> > Reston, VA 20190 (609) 477-8330 (C)
> >
>
>
---
Brian R Cuttler brian.cutt...@wadsworth.org
Computer Systems Support (v) 518 486-1697
Wadsworth Center (f) 518 473-6384
NYS Department of Health Help Desk 518 473-0773
