Problem with mpt(4) and Infortrend RAID

[Rong-En Fan]

On Fri, Feb 18, 2005 at 03:04:00AM +0800, Xin LI wrote:
> Have you got a chance to test this, I have gotten some similar problem
> and got rid of them with the following patch applied (credit goes to
> gibbs@ who fixed this last November):
> 
> http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/cam/cam_xpt.c.diff?r1=1.142&r2=1.142.2.2
> 
> This might be important since I think this has affected many users who
> wants to use multiple LUN's, and thus warrants a new errata candidate
> for 5.3-RELEASE.
> 
> Thanks in advance!

I have tested this with 5.3-p5:

1. 2 LD -> 1 channel, 320MB/s ok     (with patch)
2. 2 LD -> 1 channel, 320MB/s failed (without patch)

I simulate io by benchmark/blogbench

Regards,
Rong-En Fan