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Cc: Jeff Tchang <jeff.tchang@gmail.com>, freebsd-performance@freebsd.org
Subject: Re: 3Ware 7500-4 Slow
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On Thu, 22 Sep 2005, Chuck Swiger wrote:

> So-so.  RAID-5 is okay on a IMAP reader box, it's not so good for a pure SMTP 
> relay, especially one that does virus scanning.

For our SMTP I think we will have "small" machines with RAID-1

> If your DB claims to support a RAID-5

Will check. Will be using PostgreSQL.

> Better for small writes?  Never.
> Although good hardware and lots of RAM to cache with can help a lot.

I inheritted a number of machines. I asked the owner and the controller 
they got was with 2GB

>> How about RAID 10 for a DB server?
>
> This is a much better choice, close to ideal.

When the time comes I will try to do the argument to the owner.