ibm x335 and LSI 1030 perfomance

[Scott Long]

Nikolai Schupbach wrote:
> 
> We are using a patch from Kenneth Vestergaard Schmidt which appears to 
> be a different patch than the one created from Jan Rybensky. (perhaps 
> these guys should have worked together :-)
> 
> We are successfully running this on 4.10R on a few machines, but as with 
> Jan's patch this does not address all the issues. Specifically 
> re-synchronizing takes days and disk performance is noticeably reduced 
> during re-syncing. However once the mirror is synchronized performance 
> is great and the driver has been extremely stable without any issues to 
> date.
> 
> The mpt driver needs a new maintainer. I would love to see this driver 
> finished and fully support thie  LSI 1030 in IM mode. I would even pay 
> to get someone to complete this and have it committed to future releases 
> of FreeBSD. (anyone interested?).
> 
> I've not tried this patch against 5.3, however it applies cleanly to 4.9 
> and 4.10.
> 
> --Nikolai
> 
>  > Hi, anyone have success story, making this hardware work well. I have
>  > IBM x335 with LSI 1030 in IM mode (RAID1) working via mpt(4) but it
>  > has very poor perfomance. As i understood it's becouse mpt(4) don't
>  > correct initialize hidden drives and saw patch for FreeBSD 4.9, i try
>  > make this patch work for 5.3, but without success. Maybe someone
>  > already do it ? or any information about solution for this prorblem.
>  >
>  > Patches i saw is here http://mpt-freebsd.env.cz but i can't test it.
> 
> 

You should talk to Justin Gibbs <gibbs at scsiguy.com> about changes that
he made to the MPT driver recently.

Scott