Re: is excluding /usr/local/var/amanda a bad idea ?
2005-11-14 15:48:22
On Mon, Nov 14, 2005 at 07:22:23PM +0100, Stefan G. Weichinger wrote:
> Jon LaBadie wrote:
>
> >Might not be the last file on the tape. Suppose you collected things
> >on the holding disk, possibly several days of dumps, before taping.
> >
> >If the metadata were to hold the DLE -> tape mappings, the dump of
> >the metadata couldn't begin until after all other DLEs were taped.
> >Does that raise any issues?
>
> The size of the metadata-DLE should be relatively predictable so this
> amount of space could be put into calculation from start (also the
> history should show what size to expect). The metadata-DLE could only be
> dumped AFTER the regular DLEs are dumped completely and the related
> indexes are written, so I assume the metadata-DLE simply gets into line
> as soon as its ready.
What I was thinking was that many sites complete their dumping to
holding disk well before taping is complete. For the metadata-DLE
(MD-DLE?) to be complete it needs to know what tape(s) hold what DLE's.
Thus dumping the MD-DLE would not only have to be last, but would have
to be put on hold until all other taping was complete.
It is the delay that I was concerned about. However I guess there
is already precedence for such behavior by amdump. The starttime
option, depending on the time argument, puts dumping on hold for
a period. It resumes when triggered by the clock. Perhaps the
MD-DLE could employ similar or the same code, but triggered by
completion of all other activities.
--
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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- is excluding /usr/local/var/amanda a bad idea ?, Guy Dallaire
- Re: is excluding /usr/local/var/amanda a bad idea ?, Jon LaBadie
- Re: is excluding /usr/local/var/amanda a bad idea ?, Gene Heskett
- Re: is excluding /usr/local/var/amanda a bad idea ?, Geert Uytterhoeven
- Re: is excluding /usr/local/var/amanda a bad idea ?, Gene Heskett
- Re: is excluding /usr/local/var/amanda a bad idea ?, Stefan G. Weichinger
- Re: is excluding /usr/local/var/amanda a bad idea ?, Matt Hyclak
- Re: is excluding /usr/local/var/amanda a bad idea ?, Guy Dallaire
- Re: is excluding /usr/local/var/amanda a bad idea ?, Jon LaBadie
- Re: is excluding /usr/local/var/amanda a bad idea ?, Stefan G. Weichinger
- Re: is excluding /usr/local/var/amanda a bad idea ?,
Jon LaBadie <=
- Re: is excluding /usr/local/var/amanda a bad idea ?, Gene Heskett
- Re: is excluding /usr/local/var/amanda a bad idea ?, Stefan G. Weichinger
- Re: is excluding /usr/local/var/amanda a bad idea ?, Stefan G. Weichinger
Re: is excluding /usr/local/var/amanda a bad idea ?, Tobias Bluhm
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