Re: The Age Old Unclearly Answered Question: Write-Through or Write-Back

From: Christoph Purrucker <gugi_at_bigfoot.de>
Date: Thu, 18 Sep 2003 08:55:30 +0200
Message-ID: <bkbktc$dqt$1@home.itg.ti.com>

"El Toro" <medawsonjr_at_yahoo.com> wrote...
> At first, the colo tried to fight back by saying, "HW RAID is *always*
> faster than SW RAID." I killed that argument quick with a variety of
> benchmarks and real-life testimonials from several colleagues.
> Incidentally, I've heard horror stories about the T3 from several
> people, too.

You didn't say anything about the RAID-Level you will use. I think T3 is designed to work at RAID5. As said - not only in this group - RAID5 is a bad thing, better you choose SAME (RAID0+1). But this RAID-Level consumes really low CPU usage, so SAME can be done in software. As You have only few writes, a big write cache is irrelevant. And when you don't do RAID5, you don't need any hardware-RAID...

cu cp Received on Thu Sep 18 2003 - 01:55:30 CDT