Re: What HW / OS is recommeded

Hmm...
I read that Raid5 is suggested over Raid1. Also HW vendors told us that.
Php :-) is not an option and I dont believe Perl is a bottleneck as well.

Michael Ben-Nes wrote:

> I think and please correct me that Postgres loves RAM, the more the
> better.
>
> Any way RAID5 is awful with writing, go with RAID1 ( mirroring )
>
> I use Debian Sarge and im very happy.
>
> Perl is very slow, maybe you can use PHP ?
>
>
> Alex wrote:
>
>> Hi,
>> we are planning to upgrade our servers but deciding on the right
>> configuration seems to be quite difficult.
>>
>> As for the system. About 50 tables, 20M records and growing about
>> 500k-1m per month.
>> The systems mostly loads data from files (perl batch jobs). And
>> generates client files. Jobs generally dont run at the same time, but
>> timely loading/delivery is very important. We also run tomcat with no
>> more than 5-10 concurrent users connecting. (mostly browsing data)
>>
>> We are currently looking at Dell / HP
>> but the questions is
>>
>> - how many processors (2 or 4)
>> - do we gain with 4 cpus if we probably never have a few users connected
>> - what processors are recommended Opteron / Xeon / Itanium
>> - how much memory ? 2GB ? 4GB ?
>> - Disks, i guess we go with Raid5, 15k SCSI
>> - what OS ? Suse / RHE3 / Fedora /
>> - Disk controller ?
>>
>>
>> Currently we run it on a Dell Blade, dual P3 1.4ghz with 1G memory
>> Adding 1GB memory did actually not bring much performance gains.
>>
>> Does anyone have some first hand experience? Can anybody point me to
>> some resources ? Or recommend certain systems?
>> What kind of performance gain can be expected going from a P3 to a
>> higher end processor ?
>> Thanks for any suggestions
>>
>> Alex
>>
>>
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>
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