<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 2018, Jun 6, at 9:13 PM, Chris Samuel <<a href="mailto:chris@csamuel.org" class="">chris@csamuel.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">On Thursday, 7 June 2018 12:34:54 AM AEST Prentice Bisbal wrote:<br class=""><br class=""><blockquote type="cite" class="">Has anybody seen any more details on how the cooling actually occurs withing<br class="">the capsule?<br class=""></blockquote><br class="">There's a bit more here:<br class=""><br class=""><a href="https://datacenterfrontier.com/the-watery-edge-microsoft-deploys-undersea-servers-in-scotland/" class="">https://datacenterfrontier.com/the-watery-edge-microsoft-deploys-undersea-servers-in-scotland/</a><br class=""><br class=""># A key change from the prototype was in the cooling system, where Naval Group<br class=""># adapted a heat-exchange process commonly used for cooling submarines,<br class=""># piping seawater directly through the radiators on the back of each of the 12<br class=""># server racks and back out into the ocean.<br class=""><br class="">So water cooled doors, but presumably hardened against the corrosive<br class="">properties of sea water?<br class=""><br class=""><blockquote type="cite" class="">What is interesting is that these servers are all equipped with FPGAs:<br class=""></blockquote><br class="">Going after the bitcoin crowd perhaps?<br class=""></div></div></blockquote><div><br class=""></div><div>Microsoft has been interested in FPGAs for datacenters for years. The work is quite interesting and a review link is <a href="https://queue.acm.org/detail.cfm?id=3231573" class="">https://queue.acm.org/detail.cfm?id=3231573</a></div><div>They use it for search acceleration, among other things.</div><div>Other purposes i’ve heard about include a place to keep customer crypto keys inaccessible to the service operator, and yes, making the hardware available to customers.</div><br class=""><blockquote type="cite" class=""><div class=""><div class=""><br class="">cheers,<br class="">Chris<br class="">-- <br class=""> Chris Samuel : <a href="http://www.csamuel.org/" class="">http://www.csamuel.org/</a> : Melbourne, VIC<br class=""><br class="">_______________________________________________<br class="">Beowulf mailing list, <a href="mailto:Beowulf@beowulf.org" class="">Beowulf@beowulf.org</a> sponsored by Penguin Computing<br class="">To change your subscription (digest mode or unsubscribe) visit <a href="http://www.beowulf.org/mailman/listinfo/beowulf" class="">http://www.beowulf.org/mailman/listinfo/beowulf</a><br class=""></div></div></blockquote></div><br class=""></body></html>