Amanda-Users

Re: howto determine tape position ???

2004-01-13 14:48:37
Subject: Re: howto determine tape position ???
From: Jon LaBadie <jon AT jgcomp DOT com>
To: amanda mailing list <amanda-users AT amanda DOT org>
Date: Tue, 13 Jan 2004 14:47:38 -0500
On Tue, Jan 13, 2004 at 01:22:10PM -0600, Michael D Schleif wrote:
> * Jon LaBadie <jon AT jgcomp DOT com> [2004:01:13:12:30:56-0500] scribed:
> > On Tue, Jan 13, 2004 at 10:17:18AM -0600, Michael D Schleif wrote:
> > > At the end of an amanda dump, what is the optimal way to determine the
> > > location/position on that tape where the dump completed?
> > 
> > Not certain what your objective is,
> > so I'm not certain in what "units"
> > you might need the information.
> 
> I am trying to track tape usage statistics over time.
> 
> > Do these do anything for you:
> > 
> > your amanda report shows the percent of the tape used and the number of
> > bytes and files "successfully" written under the "tape usage" section
> > 
> >   USAGE BY TAPE:
> >     Label        Time      Size      %    Nb
> >     DS1-01       0:43    2536.3   21.7    25

> What does `Nb' mean?

Nb, Good question.

> Is that the number of DLE's on tape?

No, it is the number of "tape files" written.  The tape header is also a tape 
file
as is the trailer if present.

> 
> > also in the amanda report is "taper's" report (under Notes:)
> > of the ACTUAL number of bytes and files written
> > (some may have failed due to an error at the end)
> > 
> >   NOTES:
> >     ...
> >     taper: tape DS1-01 kb 2598496 fm 25 [OK]
> 
> In your example, what does `fm 25' mean?

file marks, there is one written after every tape file


-- 
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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