Wido, So the cluster reference osd based on the hostname, or the GUID(hopefully)? Note that I mentioned in original email the hostname associated to the IP will also be changed as well, it will be as simple as changing IP and restart osd? I remembered I tested in Dumpling a while ago and it didn't work, this cluster is running on Emperor and not sure whether that will make any difference.
Fred On Jun 13, 2014 7:51 AM, "Wido den Hollander" <[email protected]> wrote: > On 06/13/2014 01:41 PM, Fred Yang wrote: > >> Thanks, John. >> >> That seems will take care of monitors, how about osd? Any idea how to >> change IP addresses without triggering a resync? >> >> > IPs of OSDs are dynamic. Their IP is no part of the data distribution. > Simply renumber them and restart the daemon. > > I suggest: > > 1. Stop OSD(s) > 2. Renumber machine > 3. Start OSD(s) > > That should be all. There will be some recovery due to I/Os which occurred > between 1 and 3. > > Wido > > Fred >> >> Sent from my Samsung Galaxy S3 >> >> On Jun 12, 2014 1:21 PM, "John Wilkins" <[email protected] >> <mailto:[email protected]>> wrote: >> >> Fred, >> >> I'm not sure it will completely answer your question, but I would >> definitely have a look at: >> http://ceph.com/docs/master/rados/operations/add-or-rm- >> mons/#changing-a-monitor-s-ip-address >> >> There are some important steps in there for monitors. >> >> >> On Wed, Jun 11, 2014 at 12:08 PM, Fred Yang <[email protected] >> <mailto:[email protected]>> wrote: >> >> We need to move Ceph cluster to different network segment for >> interconnectivity between mon and osc, anybody has the procedure >> regarding how that can be done? Note that the host name >> reference will be changed, so originally the osd host referenced >> as cephnode1, in the new segment it will be cephnode1-n. >> >> Thanks, >> Fred >> >> Sent from my Samsung Galaxy S3 >> >> >> _______________________________________________ >> ceph-users mailing list >> [email protected] <mailto:[email protected]> >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> >> >> >> -- >> John Wilkins >> Senior Technical Writer >> Intank >> [email protected] <mailto:[email protected]> >> (415) 425-9599 <tel:%28415%29%20425-9599> >> http://inktank.com >> >> >> >> _______________________________________________ >> ceph-users mailing list >> [email protected] >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> > > -- > Wido den Hollander > 42on B.V. > Ceph trainer and consultant > > Phone: +31 (0)20 700 9902 > Skype: contact42on > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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