Yes, that's the idea, so that even in an abrupt power failure you should
be protected against data loss. It wont save any transactions in
progress and don't forget that abrupt power loss could corrupt your file
system itself, so a ups would still be nice to have for a more graceful
shutdown. If you feel the need for more detail, dig around the mailing
list archives searching for 'fsync'.
Robert Treat
On Tue, 2002-07-09 at 12:47, Naomi Walker wrote:
> At 05:23 PM 7/9/02 +0200, Stefano Coletta wrote:
> >I had problems when a power failure occurred on old postgres
> >installations. I had to use pg_check to fix problems.
> >
> >Now I have installed an UPS just to make a clean shutdown of the system. I
> >strongly suggest you to purchase an UPS, just to make a clean shutdown.
>
> I agree a UPS/generators are good things, but don't the WAL's protect the
> integrity of the data?
>
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