> I don't think either. I don't think there is another way then just 'hacky' changing the MONMaps. There have been talks of being able to make Ceph dual-stack, but I don't think there is any code in the source right now. Yeah, that's what I'd like to know. What do the Ceph team think of providing ways for switching? We're not in any need to do so now but, it'd be good to know if the team dual-stack support or at least to test and document a way to do it as opposed to a "this should work but you're on your own" kind of deal. > ________________________________________ > From: Wido den Hollander [wido@xxxxxxxx] > Sent: 27 June 2017 19:19 > To: Vasilakakos, George (STFC,RAL,SC); ceph-users@xxxxxxxxxxxxxx > Subject: Re: Ceph and IPv4 -> IPv6 > > > Op 27 juni 2017 om 19:00 schreef george.vasilakakos@xxxxxxxxxx: > > > > > > Hey Ceph folks, > > > > I was wondering what the current status/roadmap/intentions etc. are on the possibility of providing a way of transitioning a cluster from IPv4 to IPv6 in the future. > > > > My current understanding is that this not possible at the moment and that one should deploy initially with the version they want long term. > > > > However, given the general lack of widespread readiness, I think lots of us have deployed with IPv4 and were hoping to go to IPv6 when the rest of our environments enabled it. > > > > Is adding such a capability to a future version of Ceph being considered? > > > > I think you can, but not without downtime. > > The main problem is the monmap which contains IPv4 addresses and you want to change that to IPv6. > > I haven't tried this, but I think you should be able to: > - Extract MONMap > - Update the IPv4 addresses to IPv6 using monmaptool > - Set noout flag > - Stop all OSDs > - Inject new monmap > - Stop MONs > - Make sure IPv6 is fixed on MONs > - Start MONs > - Start OSDs > > Again, this is from the top of my head, haven't tried it, but something like that should probably work. > > Wido > > > > > > Best regards, > > > > George V. > > _______________________________________________ > > 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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