Bacula-users

Re: [Bacula-users] Bacula tapes marked FULL too early - VolBytes too low

2012-11-18 20:40:47
Subject: Re: [Bacula-users] Bacula tapes marked FULL too early - VolBytes too low
From: John Drescher <drescherjm AT gmail DOT com>
To: bacula-users AT lists.sourceforge DOT net
Date: Sun, 18 Nov 2012 20:36:51 -0500
> I am currently running a backup job of 1 large iso file and checking the logs 
> to see what it could be. Perhaps an issue with software rather than hardware. 
> We look after our drive well with cleans whenever asked by the machine. We 
> have a EXABYTE Model: LTO 1x7 2U.

If it is software then it is a problem with your kernel or more
specifically the device driver that handles your tape drive. Bacula
does not stop recording to a tape unless the kernel reports that it
could not successfully write a block or you wrongly specified in your
tape drive configuration in bacula that bacula should consider the
tape full after a specified # of bytes were written. Also remember
that you can only count on the the native size of the tape for how
much data will fit compression is never ever guaranteed since you
could have already compressed files which can not compress again..

John

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