I removed btrfs OSD as written in docs, reformatted it to xfs, and then added as new OSD.
пт, 7 авг. 2015 г. в 19:00, Jan Schermer <j...@schermer.cz>: > Did you copy the OSD objects between btrfs->xfs or did you remove the > btrfs OSD and add a new XFS OSD? > > Jan > > On 07 Aug 2015, at 17:06, Межов Игорь Александрович <me...@yuterra.ru> > wrote: > > Hi! > > I'm sorry, but I dont know, how to help you. We move OSDs from XFS to EXT4 > on our test > cluster (Hammer 0.94.2), removing ODSs one-by-one and re-adding them after > reformatting > to EXT4. This process is usual to a ceph (Add/Remove OSDs in documentaion) > and took > place without any data loss. We also change ruleset, like written in > Sebastian Han's blog: > > > http://www.sebastien-han.fr/blog/2014/08/25/ceph-mix-sata-and-ssd-within-the-same-box/ > > And it was also with no harm to data. But we dont use tiering, maybe some > things > happens with data while removing cache tier, like not all objects was > written back to > lower lier pool? > > > Megov Igor > CIO, Yuterra > > > ------------------------------ > *От:* Константин Сахинов <sakhi...@gmail.com> > *Отправлено:* 7 августа 2015 г. 15:39 > *Кому:* Межов Игорь Александрович; ceph-users@lists.ceph.com > *Тема:* Re: [ceph-users] inconsistent pgs > > It's hard to say now. I changed one-by-one my 6 OSDs from btrfs to xfs. > During the repair process I added 2 more OSDs. Changed crush map from > root-host-osd to root-*chasis*-host-osd structure... There was SSD cache > tiering set, when first inconsistency showed up. Then I removed tiering to > confirm than it was not the reason of inconsistencies. > Once there was hardware problem with one node - PCI slot issue. I shut > down that node and exchanged motherboard to the same model. > I'm running CentOS Linux release 7.1.1503 (Core) with > 3.10.0-229.7.2.el7.x86_64 kernel. > > пт, 7 авг. 2015 г. в 15:18, Межов Игорь Александрович <me...@yuterra.ru>: > >> Hi! >> >> When inconsistent PGs starting to appear? Maybe after some event? >> Hang, node reboot or after reconfiguration or changing parameters? >> Can you say, what triggers such behaviour? And, BTW, what system/kernel >> you use? >> >> Megov Igor >> CIO, Yuterra >> >> _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > >
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