You don't really need to do much. There are some "ceph mds" commands that let you clean things up in the MDSMap if you like, but moving an MDS essentially it boils down to: 1) make sure your new node has a cephx key (probably for a new MDS entity named after the new host, but not strictly necessary) 2) turn on the new MDS (probably after adding it to your init system) 3) turn off the old MDS (probably then removing it from your init system) If you want to set it up so that they're sort of reliably using one as the active MDS and another as the standby, you'll need to set some config options; http://ceph.com/docs/master/cephfs/mds-config-ref/ (probably just the "mds standby for name" option). -Greg On Wed, Nov 19, 2014 at 1:56 PM, Erik Logtenberg <erik@xxxxxxxxxxxxx> wrote: > Hi, > > I noticed that the docs [1] on adding and removing an MDS are not yet > written... > > [1] https://ceph.com/docs/master/rados/deployment/ceph-deploy-mds/ > > I would like to do exactly that, however. I have an MDS on one machine, > but I'd like a faster machine to take over instead. In fact, It would be > great to make an active/standby configuration (at least as long as > multimaster is not supported). How to do this? > > By the way, this is a manually deployed cluster, no ceph-deploy used. > > Thanks, > > Erik. > _______________________________________________ > 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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