| From: | "Claus Guttesen" <kometen(at)gmail(dot)com> |
|---|---|
| To: | "PostgreSQL Performance" <pgsql-performance(at)postgresql(dot)org> |
| Subject: | hp ciss on freebsd |
| Date: | 2007-11-05 13:19:18 |
| Message-ID: | b41c75520711050519x75665f8etec7f776792f037@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-performance |
Hi.
We are using a HP DL 380 G5 with 4 sas-disks at 10K rpm. The
controller is a built in ciss-controller with 256 MB battery-backed
cache. It is partitioned as raid 1+0.
Our queries are mainly selects.
I will get four 72 GB sas-disks at 15K rpm. Reading the archives
suggest raid 1+0 for optimal read/write performance, but with a solid
raid-controller raid 5 will also perform very well when reading.
Is the ciss-controller found in HP-servers a "better" raid-controller
compared to the areca-raid-controller mentioned on this list?
--
regards
Claus
When lenity and cruelty play for a kingdom,
the gentlest gamester is the soonest winner.
Shakespeare
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