Re: Hardware recommendation: which is best

It depends what you want to do with your database.

Do you have many reads (select) or a lot of writes (update,insert) ?
You should use a hardware raid controller with battery backup write cache
(write cache should be greater than 256 MB).

.. heavy duty production server ?

How much memory do you have ?

How big is your database, tables ... ?

Greetings,

-Franz


-----Ursprüngliche Nachricht-----
Von: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org] Im Auftrag von Phoenix Kiula
Gesendet: Dienstag, 11. September 2007 13:49
An: Postgres General
Betreff: [GENERAL] Hardware recommendation: which is best


Hello

We're trying to look for the most optimal config for a heavy duty
production server, and the following two are falling in the same price
range from our supplier:

Option 1:
2 x 300GB SCSI (10k rpm) with SAS and RAID 1

Option 2:
4 x 300GB SATA2 (7200 rpm, server grade) with RAID 10

I am not sure how the pricing comes so similar with such different
RAID options, but given the two above I think the second option will
be better for a high volume server where Postgres is the main
application? The only reason I ask is because of so many websites, and
threads on this list, that trump the advantages of SCSI. Many thanks
for any advice!

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