Re: most bang for buck with ~ $20,000
От | Joshua D. Drake |
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Тема | Re: most bang for buck with ~ $20,000 |
Дата | |
Msg-id | 44D90FFE.7010807@commandprompt.com обсуждение исходный текст |
Ответ на | Re: most bang for buck with ~ $20,000 ("Thomas F. O'Connell" <tfo@sitening.com>) |
Ответы |
Re: most bang for buck with ~ $20,000
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Список | pgsql-performance |
Thomas F. O'Connell wrote: > > 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. WALL is written in order so RAID 1 is usually fine. We also don't need journaling for WAL so the speed is even faster. Joshua D. Drake > > -- > 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) > > ---------------------------(end of broadcast)--------------------------- > TIP 4: Have you searched our list archives? > > http://archives.postgresql.org > -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since 1997 http://www.commandprompt.com/
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