Re: Backups done right (was [ANNOUNCE] Ext3 vs Reiserfs benchmarks)
Rik van Riel (riel@conectiva.com.br)
Thu, 18 Jul 2002 12:27:08 -0300 (BRT)
On Thu, 18 Jul 2002, Bill Davidsen wrote:
> On Tue, 16 Jul 2002 stoffel@lucent.com wrote:
>
> > 3a. lock mirrored volume, flush any outstanding transactions, break
> > mirror.
> > --or--
> > 3b. snapshot filesystem to another volume.
>
> Good summary. The problem is that 3a either requires a double morror or
> leaving the f/s un mirrored, and 3b can take a very long time for a big
> f/s.
3b should be fairly quick since you only need to do an in-memory
copy of some LVM metadata.
Rik
--
Bravely reimplemented by the knights who say "NIH".
http://www.surriel.com/ http://distro.conectiva.com/
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