On Mon, Jun 30, 2008 at 03:15:34PM +0200, Thomas Bräutigam wrote:
> Why avoid RAID5? I though that would be good? Can you explain this?
RAID5 has a lot of disadvantages, especially in terms of performance.
.oO(There was a link posted recently...)
> Writing in the DB, I add about 5-10 GB of data a day. There is a lot of writing activity going on in the database
everyday.
> What do you recommend how often I should backup the complete database?
What storage subsystem do you use? This sounds like you want something
like snapshots or similar to do backup. How long do you expect a 1-1.5
TB backup to run? I don't know. My biggest DBs are like 110 GB
(compressed dump), 300-400 GB on disk and they are difficult to handle
already.
Maybe other Postgres admins have more experience with such big DBs.
Tino.
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