I have a cluster I originally built on argonaut and have since upgraded it to bobtail and then cuttlefish. I originally configured it with one node for both the mds node and mon node, and 4 other nodes for hosting osd's: a1: mon.a/mds.a b1: osd.0, osd.1, osd.2, osd.3, osd.4, osd.20 b2: osd.5, osd.6, osd.7, osd.8, osd.9, osd.21 b3: osd.10, osd.11, osd.12, osd.13, osd.14, osd.22 b4: osd.15, osd.16, osd.17, osd.18, osd.19, osd.23 Yesterday I added two more mon nodes and moved mon.a off of a1 so it now looks like: a1: mds.a b1: osd.0, osd.1, osd.2, osd.3, osd.4, osd.20 b2: mon.a, osd.5, osd.6, osd.7, osd.8, osd.9, osd.21 b3: mon.b, osd.10, osd.11, osd.12, osd.13, osd.14, osd.22 b4: mon.c, osd.15, osd.16, osd.17, osd.18, osd.19, osd.23 What I would like to do is move mds.a to server b1 so I can power-off a1 and bring up b5 with another 6 osd's (power in my basement is at a premium), but I'm not finding much in the way of documentation on how to do that. I found some docs on doing it with ceph-deploy, but since I built this a while ago I haven't been using ceph-deploy (and I haven't had a great experience using it for building a new cluster either). Could some one point me at some docs on how to do this? Also should I be running with multiple mds nodes at this time? Thanks, Bryan _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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