Amanda-Users

Re: dump tape full?

2006-06-12 10:50:38
Subject: Re: dump tape full?
From: Jon LaBadie <jon AT jgcomp DOT com>
To: amanda-users AT amanda DOT org
Date: Mon, 12 Jun 2006 10:41:55 -0400
On Mon, Jun 12, 2006 at 04:05:47PM +0200, Kristian Rink wrote:
> 
> Hi all;
> 
> being merrily running amanda for about three years now, right now our
> tapes are slowly getting filled. This weekends full dump obviously seems
> to have completed without errors, but, running amverify ended up with
> the following:

This is just guesswork, given that I'm bad and don't run amverify.


> amverify Full
> Mo Jun 12 13:01:54 CEST 2006
> 
> Loading current slot...
> Using device /dev/nst0
> Volume Back00, Date 20060610
> Checked backer.planconnect.net.planc3.20060610.0
> Checked backer.planconnect.net.ablage.20060610.0
> Checked backer.planconnect.net.refast.20060610.0
> Checked backer.planconnect.net.backervar.20060610.0
> Checked backer.planconnect.net.jka.20060610.0
> Checked backer.planconnect.net.backercfg.20060610.0
> Checked backer.planconnect.net.planc1.20060610.0
> End-of-Information detected.
> Loading next slot...
> ...
> 

Does the list of DLEs shown by amverify match the total of
what were expected?

> 
> Hmmm, there's currently only one tape inside the changer (the one of
> last weekend), and, according to the amdump log files, last weekends
> dump filled up about 84% of the tape.

Did the report that amdump mailed out report early on that
"Some dumps may have been left on the holding disk"?

> 
> So: What does "End-of-Information" mean in this context? Is the tape
> (for whichever reason) filled and amverify expecting more information on
> another one? Did amverify actually finish checking all disks and see the
> end of the dump?
> ...
> Checked backer.planconnect.net.planc1.20060610.0.
> ...
> 
> makes be believe the check of this part of the backup was successful

The questions above would help confirm this guess, but I suspect that
taper actually ran out of space on the tape.  Whether the DLE it was
taping when it reached the end was backer.planconnect.net.planc1.20060610.0
or the next DLE I don't know.  When taper hits the end of the tape the
emailed report shows "successful tape usage", that is your 84%.  The
remaining 16% might have been a partially taped DLE.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)

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