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On 01/16/2015 05:57 PM, Kian-Tat Lim wrote: > I thought at one point we were considering having one MySQL server > instance (worker node) per spindle, rather than having to manage the > data distribution internal to a MySQL instance. Yes, we were considering that, but that's not optimal either, unless you have multiple cores per spindle, but even then there is shared table access (non-partitioned tables) and it could get complicated. We really do want to have more boxes with fewer cores, if we do all our I/O optimization right. In some sense, if qserv is perfect as advertised, the random seeks will be so few that the penalty of using RAID (less seeks available in the system) will be minor. Unicorns could exist, too. -Daniel ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the QSERV-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1