| From: | "Thomas F(dot) O'Connell" <tfo(at)sitening(dot)com> |
|---|---|
| To: | Kenji Morishige <kenjim(at)juniper(dot)net> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: most bang for buck with ~ $20,000 |
| Date: | 2006-08-08 21:59:09 |
| Message-ID: | 9EE66C7F-0B04-4472-9EBD-CD567AC9EA1D@sitening.com |
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| Thread: | |
| Lists: | pgsql-performance |
On Aug 8, 2006, at 4:49 PM, Joshua D. Drake wrote:
>> I am considering a setup such as this:
>> - At least dual cpu (possibly with 2 cores each)
>> - 4GB of RAM
>> - 2 disk RAID 1 array for root disk
>> - 4 disk RAID 1+0 array for PGDATA
>> - 2 disk RAID 1 array for pg_xlog
>> Does anyone know a vendor that might be able provide such setup?
Wouldn't it be preferable to put WAL on a multi-disk RAID 10 if you
had the opportunity? This gives you the redundancy of RAID 1 but
approaches the performance of RAID 0, especially as you add disks to
the array. In benchmarking, I've seen consistent success with this
approach.
--
Thomas F. O'Connell
Sitening, LLC
http://www.sitening.com/
3004B Poston Avenue
Nashville, TN 37203-1314
615-469-5150 x802
615-469-5151 (fax)
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