Hi All, Is mounting rbd only really supported in Ubuntu? All of our servers are CentOS 7 or RedHat 7 and since they are at Kernel 3.10, I can’t get rbd working. Even if I use legacy tunables or set tunables to 1/2/3… Nothing will mount the block device. The only answer I can find to get this working under RHEL or CentOS is to upgrade the kernel… Doesn’t that mean RBD isn’t support for a production environment unless it’s Ubuntu or whatever OS supports a Kernel over 3.18? Thanks for everyone’s help so far! Cheers, Mike _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com