Re: Linux ready for high-volume databases?

On Tue, 2003-08-26 at 23:35, Greg Stark wrote:
> Dennis Gearon <gearond@fireserve.net> writes:
[snip]
> This doesn't provide what online backups do, of recovery to the minute of the
> crash. And I get nervous having only logical pg_dump output, no backups of the
> actual blocks on disk. But is that what everybody does?

Gak!!  It can never be guaranteed that the "actual blocks on disk"
are transactionally consistent.  Thus, the pg_dump output is suff-
icient.

However, there is still the large problem of PITR.  Unless you
double your h/w and run Postgresql-R, you can not guarantee recov-
ery to an exact point in time if there is a hardware failure that
destroys the database.

Therefore, you can only restore databases to the time that the
last pg_dump was taken.

--
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Ron Johnson, Jr. ron.l.johnson@cox.net
Jefferson, LA USA

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