V5 is supposedly stable, but that only means it will be just as bad as any other XFS. I recommend avoiding XFS whenever possible. Ext4 works perfectly and I never lost any data with it, even when it got corrupted, while XFS still likes to eat the data when something goes wrong (and it will, like when you hit bit rot or a data cable fails). Jan > On 25. 3. 2016, at 11:44, Dzianis Kahanovich <mahatma@xxxxxxxxxxxxxx> wrote: > > Before adding/replacing new OSDs: > > What version of xfs is preferred by ceph developers/testers now? > Time ago I move all to v5 (crc=1,finobt=1), it works, exclude > "logbsize=256k,logbufs=8" in 4.4. Now I see, v5 is default mode (xfsprogs & > kernel 4.5 at least). > > I in doubts: make new OSDs old-style v4 + logbsize=256k,logbufs=8 (and remove v5 > crc worloads) - increase linear performance (exclude rm/ls operations), or make > current default v5 to other benefits. > > Are xfs v4 still mainstream for ceph? > > PS I use too fresh "unstable" Gentoo ~amd64, so don't know some normal distros > reality... > > -- > WBR, Dzianis Kahanovich AKA Denis Kaganovich, http://mahatma.bspu.unibel.by/ > _______________________________________________ > 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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