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Re[2]: chicken and egg (now: backuping DBMSs)
Eli Marmor <marmor@elmar.co.il> wrote:
> Speaking about backuping, and also about databases like MySQL (in
> another linux-il thread), let me ask you (you=linux-il subscribers)
> to share your experience with backuping file-systems which include
> running databases. I know that there are special backup methods for
> databases. Do you use them?
You can run a DB's dump utility (like pg_dump of Postgres) redirecting its
output to a file (probably piped through gzip or bzip2). Do it from cron some
minutes before the backup is started.
> Are there special backup tools (e.g.
> BRU2000, etc.) which support databases and/or even know how to speak
> with them so backups can be done during normal running of the
> database?
Yes, there are special backup programs that can do it (not BRU, though) - but
none that can work with a non-commercial DB, AFAIK.
> And is there any way to backup databases incrementally?
> Imagine a database of many megabytes, with some records modified
> daily; It is not acceptable that the whole database should be copied
> daily, and there must be a better way...
Do you really have _that_ large databases? If we're talking about something
within ~ 100MB, I wouldn't bother - backup drives are fast and media are
cheap nowadays...
Regards,
Evgeny
--
____________________________________________________________
/ Evgeny Stambulchik <fnevgeny@plasma-gate.weizmann.ac.il> \
/ Plasma Laboratory, Weizmann Institute of Science, Israel \ \
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