Once OSDs are created by ceph-deploy, ceph udev rules recognise OSDs by GPT labels of their partitions. You can see how this happens in /lib/udev/rules.d/95-ceph-osd.rules (that's the path on an ubuntu server). Cheers, John On Thu, Jan 30, 2014 at 1:07 PM, Daniel Schwager <Daniel.Schwager@xxxxxxxx> wrote: > Hi, > > just a small question: Createing a new OSD i use e.g. > ceph-deploy osd create ceph-node1:sdg:/dev/sdb5 > > Question: What happens if the mapping of my disks changes (e.g. because adding new disks to the server) > sdg becomes sgh > sdb becomes sdc > > Is this handled (how?) by ceph? I cannot find any udev-rules for dev mapping... > Or is it in my scope to add udev persistent rules ? > > thx > Danny > > _______________________________________________ > 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