On Mon, Feb 4, 2019 at 9:25 AM Massimo Sgaravatto <massimo.sgaravatto@xxxxxxxxx> wrote: > > The official documentation [*] says that the only requirement to use the balancer in upmap mode is that all clients must run at least luminous. > But I read somewhere (also in this mailing list) that there are also requirements wrt the kernel. > If so: > > 1) Could you please specify what is the minimum required kernel ? 4.13 or CentOS 7.5. See [1] for details. > 2) Does this kernel requirement apply only to the OSD nodes ? Or also to the clients ? No, only to the kernel client nodes. If the kernel client isn't used, there is no requirement at all. [1] http://lists.ceph.com/pipermail/ceph-users-ceph.com/2018-May/027002.html Thanks, Ilya _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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