[Lustre-discuss] stata_mv mv_stata which is better?

[Brock Palen]

Thanks, I might look into it.  Right now the performance of the stock  
driver that comes with the kernel is more than the 4 1gig connections  
we will be using.

I am having other issues now with the new filesystem that I did not  
have with our old one, that iwll be a new question though.

Brock Palen
www.umich.edu/~brockp
Center for Advanced Computing
brockp at umich.edu
(734)936-1985



On Aug 7, 2008, at 2:11 PM, Mike Berg wrote:
> Brock,
>
> It is recommended that mv_sata is used on the x4500.
>
> It has been a while since I have built this up myself and a few  
> Lustre releases back but I do understand the pain. I hope that with  
> Lustre 1.6.5.1 on RHEL 4.5 you can just build mv_sata against the  
> provided Lustre kernel and alias it accordingly in modprobe.conf  
> and create a new initrd, then update grub. I don't have gear handy  
> to give it try unfortunately. Please let me know your experiences  
> with this if you pursue it.
>
> Enclosed is a somewhat dated document on what we have found to be  
> the best configuration of the x4500 for use with Lustre. Ignore the  
> N1SM parts. We optimized for performance and RAS with some  
> sacrifices on capacity. Hopefully this is a useful reference.
>
>
> Regards,
> Mike Berg
> Sr. Lustre Solutions Engineer
> Sun Microsystems, Inc.
> Office/Fax: (303) 547-3491
> E-mail:  Mike.Berg at Sun.Com
>
>
> <X4500-preparation.pdf>
>
> On Aug 6, 2008, at 1:48 PM, Brock Palen wrote:
>
>> Is it still worth the effort to try and build mv_stata?  when working
>> with an x4500?
>> stata_mv from RHEL4 does not appear to show some of the stability
>> problems discussed online before.
>>
>> I am curious because the build system sun provides with the driver
>> does not play nicely with the lustre kernel source packaging.
>>
>> If it is worth all the pain, if others have already figured it out.
>> Any help would be grateful.
>>
>>
>> Brock Palen
>> www.umich.edu/~brockp
>> Center for Advanced Computing
>> brockp at umich.edu
>> (734)936-1985
>>
>>
>>
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>