I have tried to make Gluster FS work for last 2 years on different projects and have given up. With Gluster I have always used 10 gig Infiniband. Its dirt cheap (about $80 a port used including switch) and very low latency, however ceph does not support it so we are looking at ethernet. I know that 10GBase-T has more delay then SFP+ with direct attached cables (.3 usec vs 2.6 usec per link), but does that matter? Some sites stay it is a huge hit, but we are talking usec, not ms, so I find it hard to believe that it causes that much of an issue. I like the lower cost and use of standard cabling vs SFP+, but I don't want to sacrifice on performance. Our plan is to use our KVM hosts for ceph, the hardware we are looking at how is: SPF+ Option - Supermicro X9DRW-7TPF+ (Intel 82599) 10GBase-T Option - Supermicro X9DRW-3TF+ (Intel x540) 2 - 2.9 GHz Xeon 2690 v2 16 - 8 Gig 1877 MHz dual rank DDR3 9 - Samsung 840 EVO 120 GB SSD (1 root 8 ceph) Switch is going to be Arista 7050-T for SFP+ or Arista 7050-S for 10GBase-T. -- ><> nathan stratton | vp technology | broadsoft, inc | +1-240-404-6580 | www.broadsoft.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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