[Twg] [Discuss] DDN requirements

[Ian Colle]

I think LLNL would also appreciate making #1 a priority.

Chris Morrone ­ can you confirm?

Ian R. Colle
HPC Project Manager, Whamcloud
Cell: +1.303.601.7713
Email: ian at whamcloud.com

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From:  Nathan Rutman <Nathan_Rutman at xyratex.com>
Date:  Tue, 29 May 2012 16:54:46 -0700
To:  John Carrier <carrier at cray.com>
Cc:  <discuss at lists.opensfs.org>, <twg at lists.opensfs.org>
Subject:  Re: [Discuss] DDN requirements


On May 29, 2012, at 9:23 AM, John Carrier wrote:

> I received this list from DDN over the weekend.   I note that the first two
> items on their list were not captured during our requirements gathering this
> spring.   I think we should add them to our requirements document, but we need
> to discuss how they impact our recommendations to the OpenSFS Board.
>  
> I have added these to the spreadsheet and taken the liberty of matching
> ³patch-less server support² with our existing ³better support for newer
> kernels². 
>  
> --jc
>  
> DDN's Lustre requirements for OpenSFS TWG
>  
> 1)  Architecture/Developer documentation
>        Well documented internals of MDS, MGS, OSS, OST, OSD API, etc.

Interestingly, this first item is not on anyone else's list, however I also
think it is important for the dissemination of Lustre knowledge and to help
grow the Lustre contributor community.  I also believe Oak Ridge feels
strongly about this, as the producers of the first Lustre Internals doc.  I
think an expansion and update of this is worthy of funding consideration.


>  
> 2) Improved small and medium I/O performance (compare to GPFS)
> 3) Single client performance while preserving scalability   (even at a single
> thread per client)
> 4) OST migration/rebalancing  (compare to GPFS)
> 5) LNET channel bonding
> 6) Patch-less server support
> 7) Single MDS File create performance
> 8) Single MDS Directory traversal and attribute retrieval performance
> 9) Improved Lustre tests and testing infrastructure
> 10) Quality of service (mechanism and policies)
>  
>  
>  
> _______________________________________________
> discuss mailing list
> discuss at lists.opensfs.org
> http://lists.opensfs.org/listinfo.cgi/discuss-opensfs.org

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