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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Liang,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Do you think the HLD provides enough guidance that a vendor could respond to an RFP to design _<i>and</i>_ implement the feature? Or do we still need to design
and implement separately, as has been proposed at our last meeting?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">--jc<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Liang Zhen [mailto:liang@whamcloud.com]
<br>
<b>Sent:</b> Wednesday, September 26, 2012 12:12 AM<br>
<b>To:</b> John Carrier<br>
<b>Cc:</b> twg@lists.opensfs.org; discuss@lists.opensfs.org<br>
<b>Subject:</b> Re: [Twg] LNET channel bonding<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi John, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I think most of the design is still valid, but I wouldn't suggest to skip the design phase for a few reasons:<o:p></o:p></p>
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<p class="MsoNormal">- it's a HLD, not a DLD. OpenSFS project process has both HLD and DLD in design phase.<o:p></o:p></p>
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<p class="MsoNormal">- the HLD described this feature as a single project, I'm wondering if it's possible to have multiple phases for it (or sub-projects), which will make it more manageable.<o:p></o:p></p>
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<p class="MsoNormal">- it's worked out three years ago and core LNet has been changed a lot, it could be worth taking time to review it and consider if there's any new complexity or issue based on the latest LNet, i.e: Any potential SMP performance issue if
adding this feature.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards<o:p></o:p></p>
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<p class="MsoNormal">Liang<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sep 21, 2012, at 4:38 AM, John Carrier wrote:<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Hi all,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas">Since LNET channel bonding has made it to the TWG's short list of requirements for 2013, I would like to remind the community that Cray already funded the design of such a requirement
in 2009. The high level design document is available here:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas"><a href="http://wiki.lustre.org/images/e/ee/Channel_Bonding_06_15_09.pdf">http://wiki.lustre.org/images/e/ee/Channel_Bonding_06_15_09.pdf</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas">Is this design still valid? What else would need to be done? If the design still looks good, then I suggest that the RFP for this requirement should move directly to implementation and
avoid the cost of another design phase.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Please post comments to the reflectors.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Thanks,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">--jc<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">_______________________________________________<br>
twg mailing list<br>
<a href="mailto:twg@lists.opensfs.org">twg@lists.opensfs.org</a><br>
<a href="http://lists.opensfs.org/listinfo.cgi/twg-opensfs.org">http://lists.opensfs.org/listinfo.cgi/twg-opensfs.org</a><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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