Hello, On Tue, 23 Feb 2016 22:49:44 +0900 Christian Balzer wrote: [snip] > > 7 nodes(including 3 mons, 3 mds). > > 9 SATA HDD in every node and each HDD as an OSD&journal(deployed by > What replication, default of 3? > > That would give the theoretical IOPS of 21 HDDs, but your slow (more > precisely high latency) network and lack of SSD journals mean it will be > even lower than that. > [snap] And when I said 21, I meant of course 10, since w/o SSD journals you're halving the IOPS of each OSD HDD (and that is being generous). Christian -- Christian Balzer Network/Systems Engineer chibi@xxxxxxx Global OnLine Japan/Rakuten Communications http://www.gol.com/ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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