Date: Fri, 8 Sep 2006 06:16:09 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Jo Rhett" <jrhett@svcolo.com> Cc: amd64@freebsd.org, stable@freebsd.org Subject: Re: suggestions for SATA RAID cards Message-ID: <001001c6d327$25dc07c0$b3db87d4@multiplay.co.uk> References: <44EC0B9B.5020705@withagen.nl><003f01c6c68d$64688e60$b3db87d4@multiplay.co.uk> <20060907184316.GC56998@svcolo.com> <035701c6d2c3$eb574aa0$b3db87d4@multiplay.co.uk> <FEDA1103-8D83-4D43-9731-7E3D9D2DB1E5@svcolo.com>
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Jo Rhett wrote:
> On Sep 7, 2006, at 2:23 PM, Steven Hartland wrote:
>> I did have a little bother getting through to the dev's for
>> support with a disk compatibility issue but once I located
>> the right person highpoint support was very good.
>
> How did you locate them? Highpoint support told us that a third
> party did the freebsd driver and that they had no intention of
> supporting it.
Just going through their support email. I believe Scott did the
original FreeBSD 1820a port but they where more than helpful
in fixing the issue I had which was a quite nasty compat issue
with seagate 400GB disks.
> FYI, several people have claimed that the 1820a is "hardware" -- this
> is untrue. It's hardware accelerated, but all of the raid logic is
> in the driver. It's sludgeware", not hardware raid. Performance
> tests against a real hardware raid adapter will demonstrate what I
> mean.
I believe you are wrong here and my own performance tests here
backs this up, showing it keeps up with the more expensive areca
in a number of areas notably, providing 180MB/s in sequential
read tests from a 5 disk array.
Steve
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