Amanda-Users

Re: planner: [dumps too big...]

2003-06-22 10:09:22
Subject: Re: planner: [dumps too big...]
From: Jon LaBadie <jon AT jgcomp DOT com>
To: amanda-users AT amanda DOT org
Date: Sun, 22 Jun 2003 10:05:02 -0400
On Sun, Jun 22, 2003 at 01:52:14PM +0200, Peter Kunst wrote:
> Jon LaBadie wrote:
> >
> > Is amanda using the second tape at all?  I.e., do you have a functioning
> > changer amanda configuration?  Did you run out of tape on the second
> > tape and still have DLE's to go and that is why the message?
> 
> Yes, the 2nd tape is used, and hardware compression is switched on.
> i know it's a bad thing while amanda is guessing estimates, maybe
> this is where i think wrong ?

...
> 
> quoting amanda (at the run the "dumps too big" happen):
> 
> > These dumps were to tapes dev013, dev014.
> [..]
> > USAGE BY TAPE:
> >  Label           Time      Size      %    Nb
> >  cskdev013       5:42  180538.4  179.0    26
> >  cskdev014       6:01   21182.4   21.0     1
> 
> ...so amanda thinks it has only ~200GB space on it's 2 tapes, even
> if the 2nd tape has plenty of space left, right ?
> i don't know if the next lines will tell me also not to use hardware
> compression:
> 
> > taper: tape dev013 kb 201132320 fm 27 writing file: short write
> > taper: retrying nfs5-120:/gigd2.0 on new tape: [writing file: short write]
> > taper: tape dev014 kb 21690816 fm 1 [OK]
> 
> Thanks for your hints.
> 
> I guess i must play around with my settings some more weeks before
> i completely understand what happens.


Repeating and rearranging a couple of lines:

> >  cskdev013       5:42  180538.4  179.0    26
> > taper: tape dev013 kb 201132320 fm 27 writing file: short write

To me, this says 26 DLE's were successfully written to the first tape
including 180GB of valid, properly written data.  It then tried the
27th DLE and hit the end of the tape at 201GB.

> > taper: retrying nfs5-120:/gigd2.0 on new tape: [writing file: short write]

It think this is the DLE it was trying to write when it failed.  Must be
bigger than the 20GB that was left on the tape.


> >  cskdev014       6:01   21182.4   21.0     1
> > taper: tape dev014 kb 21690816 fm 1 [OK]

That looks like one DLE made it to the second tape, a 21GB DLE.

Did any DLE's fail?  It doesn't seem so from what you have shown.
That would be in a missing part of the report.

If yes, how big were they?  Bigger than the 80GB amanda thinks
remain on the tape?

jl
-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
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