AAC 2200s and firmware 7244

[Don Bowman]

From: Kenneth D. Merry [mailto:ken at kdm.org]
> On Fri, May 07, 2004 at 18:52:24 -0400, Don Bowman wrote:
> > From: Scott Long [mailto:scottl at freebsd.org]
> > > Sent: May 7, 2004 18:21 PM
> > > To: Don Bowman
> > > Cc: 'scsi at freebsd.org'
> > > Subject: Re: AAC 2200s and firmware 7244
> > > 
> > > 
> > > Don Bowman wrote:
> > > 
> > > > Does anyone know if the aac driver on
> > > > RELENG_4 (and/or CURRENT) supports the firmware
> > > > which was released yesterday on Adaptec's 
> > > > web site? This is referenced as version 7244.
> > > > 
> > > > The web page indicates that 'driver version 4.1.0.7244'
> > > > is required. I'm not sure what that is (the windows
> > > > version?) or how it maps to freebsd.
> > > > 
> > > > 
> > > (http://www.adaptec.com/worldwide/support/driverdetail.jsp?ses
> > s=no&language=
> > > English+US&cat=/Product/ASR-2200S&filekey=asr2200s_fw_v7244.exe)
> > > 
> > > --don
> > >
> > >So far I've no luck from Adaptec in trying to figure out what this
> > >means.  Given that there is only a new Windows driver but not a new
> > >Linux driver, it might not be a big deal.  In fact, it might just
> > >be something related to Windows Certification.  I'll keep 
> pressing to
> > >find out.  In the mean time, feel free to be the Guinea Pig =-)
> > 
> > 
> > Well, the guinea pig approached worked ok. It appears that upgrading
> > the adapter doesn't break anything under FreeBSD aac driver
> > on RELENG_4, so presumably not on CURRENT either.
> 
> On a slightly-related topic, any idea what sort of 
> performance have you
> been able to get out of the 2200S?  (The number of disks and 
> what kind of
> array(s) you have would be helpful to know.)
> 
> I'm mainly wondering about sequential performance, since 
> random performance
> is harder to gage.
> 
> e.g., with my Adaptec 5400S/HP NetRAID 4M, I can get about 
> 92MB sequential
> read performance with a 6 disk RAID-5, and up to 50MB/sec 
> sequential write
> performance on the same array.
> 
> With a RAID-1 array composed of the same disks, I can get 
> 66MB/sec read
> performance, and up to about 30MB/sec write performance.
> 
> (I'm using Seagate ST373307LC disks -- 73GB, 10K RPM.)

My experience has been that the ASR (5400s, 2010s, etc)
outperform the AAC (2200s). I don't currently have a 
similar ASR system setup, i'll try and get one to
post an objective measure.

On a 4-disk raid5 (similar disk, IBM IC35L146UCDY10-0 147GB, 10K),
I'm achieving 46MB/s write, and 83MB/s on read, 'sequential' dd 
performance with AAC on RELENG_4. 

--don