| From: | Steve Poe <spoe(at)sfnet(dot)cc> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Ideal disk setup for Postgresql 7.4? |
| Date: | 2005-01-25 11:57:24 |
| Message-ID: | 41F63424.1060904@sfnet.cc |
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| Thread: | |
| Lists: | pgsql-performance |
I help manage an animal hospital of 100-employees Linux servers. I am
new to database setup and tuning, I was hoping I could get some
direction on a setting up drive array we're considering moving our
database to.
They're currently on a two-disk Adaptec RAID1 with Postgresql 7.4.2.
The drive array is a 7-disk fibre channel on a Qlogic 2100 controller. I
am currently testing RAID5 (sw).
The main reason of moving to a drive array is the high level of context
switches we get during the day (>30K for 20 mins per hour). The OS and
database exist on the same disk but seperate parition (which probably
makes little difference)
additional info:
On average, 30-35 vets/doctors are connecting to the database at any
time from 7am - 7pm. The database is very active for the small company.
Server Info:
Centos 3.3 (RHEL 3.x equivelent)
4GB RAM
Adaptec 2100S RAID
Qlogic QLA2100 Fibre
Any feedback/suggestions are greatly appreciated.
Thanks.
Steve Poe
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