Quick drop-in, if this is a suitable solution: rbd-nbd This will give you, for a small performance cost, a block device using librbd (in userspace) On 06/09/2017 11:08, Ilya Dryomov wrote: > On Wed, Sep 6, 2017 at 9:16 AM, Henrik Korkuc <lists@xxxxxxxxx> wrote: >> On 17-09-06 09:10, Ashley Merrick wrote: >> >> I was just going by : docs.ceph.com/docs/master/start/os-recommendations/ >> >> >> Which states 4.9 >> >> >> docs.ceph.com/docs/master/rados/operations/crush-map >> >> >> Only goes as far as Jewel and states 4.5 >> >> >> Not sure where else I can find a concrete answer to if 4.10 is new enough. >> >> Well, it looks like docs may need to be revisited as I was unable to use >> kcephfs on 4.9 with luminous before downgrading tunables, not sure about >> 4.10. >> >> >> >> ,Ashley >> >> ________________________________ >> From: Henrik Korkuc <lists@xxxxxxxxx> >> Sent: 06 September 2017 06:58:52 >> To: Ashley Merrick; ceph-users@xxxxxxxx >> Subject: Re: Luminous Upgrade KRBD >> >> On 17-09-06 07:33, Ashley Merrick wrote: >> >> Hello, >> >> Have recently upgraded a cluster to Luminous (Running Proxmox), at the same >> time I have upgraded the Compute Cluster to 5.x meaning we now run the >> latest kernel version (Linux 4.10.15-1) Looking to do the following : >> >> ceph osd set-require-min-compat-client luminous > > This would effectively require 4.13 kernel for krbd and kcephfs. > > You won't gain much by requiring luminous clients, so unless you have > a well-formulated reason to do it, I'd advise against it. That's also > the reason os-recommendations page still lists 4.9 -- it is the latest > jewel-compatible LTS kernel. > > Thanks, > > Ilya > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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