Le 23/12/2015 18:37, Mart van Santen a écrit : > So, maybe you are right and is the HBA the bottleneck (LSI Logic / > Symbios Logic MegaRAID SAS 2108). Under all cirumstances, I do not get > close to the numbers of the PM863 quoted by Sebastien. But his site > does not state what kind of HBA he is using.. In fact I was the one doing those tests and I added the relevant information in the comments (Disqus user Gyver): the PM863 tested is connected to the Intel C612 chipset SATA ports (configured as AHCI) of a dual Xeon E5v3 board, so this is a purely SATA configuration. Best regards, Lionel _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com