On 05/04/2015 11:05 AM, Ilya Dryomov wrote: > On Mon, May 4, 2015 at 11:46 AM, Florent B <florent@xxxxxxxxxxx> wrote: >> Hi, >> >> I would like to know which kernel version is needed to mount CephFS on a >> Hammer cluster ? >> >> And if we use 3.16 kernel of Debian Jessie, can we hope using CephFS for >> a few next release without problem ? > I would advice to run the latest released kernel, so 4.0 as of now. > You have to remember that in the case of krbd or kcephfs the kernel is > not just something that enables userspace applications to run, it *is* > the application. Why choose to run the latest version of component > A and then a year-old version of component B? > > Note that if you enable hammer (i.e. "optimal") tunables you wouldn't > be able to mount cephfs with any released kernel - support for hammer > tunables is coming in 4.1. > > Thanks, > > Ilya Thank you for your message Ilya. The reason of running an "old" kernel is simple : we don't want to make our own kernel and take care of updates, we prefer to use the processes of Debian to get something "stable". But it's ok, we will use Ceph-Fuse instead, it's not a problem ;) _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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