If I understand the working of Amanda correctly, Amanda will postpone some
full dumps if the estimate of all the filesystems are larger than one tape
even though the setup is to use two tape drives.  Amanda will write to one
tape until the full and write to the second tape.  Correct me if I'm wrong.
Can Amanda breaks up the backup job so it can spread the filesystems that
are backup to multiple tapes?  For example, amanda will backup those
filesystems that fits on one tape and backup the rest of the filesystems to
the other tape which will reduce the postpone of some full backups.

Yan Lam - Systems Administrator
Unify Corporation, http://www.unify.com
T: 916 * 928-6226 E: lamy AT unify DOT com

"The brightest future will always be based on a forgotten past, you can't 
go on well in life until you let go of your past failures and heartaches".



-----Original Message-----
From: Jon LaBadie [mailto:jon AT jgcomp DOT com] 
Sent: Friday, November 15, 2002 9:57 PM
To: 'amanda-users AT amanda DOT org'
Subject: Re: Tape Changer Question


On Fri, Nov 15, 2002 at 03:05:01PM -0800, Yan Lam wrote:
> Currently, I have Amanda doing backups with two tape drives ( both are
> DLT7000 drives).  I noticed that Amanda deferred many level 0 backups with
> the "...[dumps too big, full dump delayed]" in the log file.
> 
> The first tape is filled; however, the second tape only taped 8GB of data.
> 
> My question is that if Amanda is setup to use both tape drives (both
tapes),
> wouldn't Amanda will try to fill up both tape as much as possible instead
of
> postpone the level0 backups?

More likely the estimated size of the dump of that disklist entry (DLE) was
larger than would fit on the tape.

Remember that amanda can not backup a DLE that is larger than a single tape.
-- 
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)