On Sun, Aug 20, 2006 at 01:28:29PM +0100, Chris Lee wrote:
> I was wondering if anyone thought it would be a good idea for Amanda to
> write a footer file to tape after completing a dump providing a record
> of the tapes needed to produce a full restore to the state the system
> was in when this tape was written.
> I don't use amanda in a way that this would be very useful to me, it is
> only for home backups and I have a dumpcycle of 2 so I just need the
> last 3 tapes and I am sure to have all I need. However I was thinking in
> situations where longer dumpcycles and lots of DLEs are common it could
> help with restores if you lose Amanda and her data.
> The footer file would just be a list of the tapes from the last level 0
> to now for each DLE.
>
> For example a file formatted like this, so anyone can read it without
> Amanda's help:
> /home/bob { //Tapes needed for this DLE
> DailySet3 0 Thursday 17/08/2006
> DailySet4 1 Friday 18/08/2006
> DailySet5 2 Monday 21/08/2006
> }
> /home/anne { //Tapes Needed for this DLE
> DailySet5 0 Monday 21/08/2006
> }
> etc.
>
> Restore Set { //list of all tapes needed for all DLEs
> DailySet3 Thursday 17/08/2006
> DailySet4 Friday 18/08/2006
> DailySet5 Monday 21/08/2006
> }
>
Interesting idea. A 32KB trailer file is, I believe, already added
to the last tape used in a dump. I'm not sure I like the idea of
adding this data, either as a last file before the trailer, or as
part of the trailer. In a large installation it could get quite
large and could result in an extra tape being used if the last
DLE nearly filled the tape.
But as a separately executed report, I really like it.
Things not included in your format are the client and the
tape file number. With tape spanning that could be 'tapes'
and tape file 'numbers' for a single dump level.
Can Josef Wolf's amandatape program be massaged into such a format?
--
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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