On Sun, 20 Jan 2013, Peter Smith wrote: > Thanks for the reply, Sage and everyone. > > Sage, so I can expect Ceph-rbd works well on Centos 6.3 if I only use > it as the Cinder volume backend because the librbd in QEMU doesn't > make use of kernel client, right? Then the dependency is on the qemu version. I don't remember that off the top of my head, or know what version rhel6 ships. Most people deploying openstack and rbd are using a more modern distro (like ubuntu 12.04). Josh would know more... > Could you explain a bit more about what are the functions of kernel > client? Will it influence the daily operations, such as listing > volumes, devices by using ceph commands? There is no kernel dependency at all for the radosgw and qemu+rbd use- cases. sage > > > > > > > On Sun, Jan 20, 2013 at 1:13 AM, Sage Weil <sage@xxxxxxxxxxx> wrote: > > On Sat, 19 Jan 2013, Dimitri Maziuk wrote: > >> On 1/19/2013 9:50 AM, Peter Smith wrote: > >> > >> > 3. OS recommendation: The OS recommendation page: > >> > http://ceph.com/docs/master/install/os-recommendations/#bobtail-0-56 > >> > says CentOS 6.3 has a default kernel with old kernel client. CentOS > >> > 6.3 is our production environment. > >> > >> I was unable to get ceph to run on centos 6.3 following the "5 minute quick > >> start" document. I did get one machine to "unclean" cluster state using > >> elrepo's kernel 3.7, but that kernel doesn't boot on most of our boxen > >> (boot-time oops in pata-acpi). > >> > >> It looks to me that unless inktank backports rbd.ko to 2.6.32, centos/sl users > >> won't be able to test ceph for a couple of years: until centos 7.1 comes out > >> and we get the chance to reimage our hardware. > > > > If you want to use the kernel client(s), that is true: there are no plans > > to backport the client code to the ancient RHEL kernels. Nothing prevents > > you from running the server side, though, or the userland clients > > (ceph-fuse, librbd, qemu/KVM, radosgw, etc.) > > > > sage > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
