Re: hp ciss on freebsd

Greg Smith <gsmith@gregsmith.com>

From: Greg Smith <gsmith@gregsmith.com>
To: Claus Guttesen <kometen@gmail.com>
Cc: PostgreSQL Performance <pgsql-performance@postgresql.org>
Date: 2007-11-05T16:32:28Z
Lists: pgsql-performance
On Mon, 5 Nov 2007, Claus Guttesen wrote:

> Is the ciss-controller found in HP-servers a "better" raid-controller
> compared to the areca-raid-controller mentioned on this list?

If you search the archives for "cciss" you'll see a few complaints about 
this controller not working all that well under Linux.  The smart thing to 
do regardless of what other people say is to test yourself and see if 
you're meeting expectations.  I've got a sample of how a single disk 
performs with an Areca controller you can use as a baseline at 
http://www.westnet.com/~gsmith/content/postgresql/pg-disktesting.htm

--
* Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD