X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fdoc%2Frados%2Fdeployment%2Fceph-deploy-mds.rst;fp=src%2Fceph%2Fdoc%2Frados%2Fdeployment%2Fceph-deploy-mds.rst;h=d2afaec3d46b1a5fe3b4ddae7cef8cb27c148c0a;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/doc/rados/deployment/ceph-deploy-mds.rst b/src/ceph/doc/rados/deployment/ceph-deploy-mds.rst new file mode 100644 index 0000000..d2afaec --- /dev/null +++ b/src/ceph/doc/rados/deployment/ceph-deploy-mds.rst @@ -0,0 +1,46 @@ +============================ + Add/Remove Metadata Server +============================ + +With ``ceph-deploy``, adding and removing metadata servers is a simple task. You +just add or remove one or more metadata servers on the command line with one +command. + +.. important:: You must deploy at least one metadata server to use CephFS. + There is experimental support for running multiple metadata servers. + Do not run multiple active metadata servers in production. + +See `MDS Config Reference`_ for details on configuring metadata servers. + + +Add a Metadata Server +===================== + +Once you deploy monitors and OSDs you may deploy the metadata server(s). :: + + ceph-deploy mds create {host-name}[:{daemon-name}] [{host-name}[:{daemon-name}] ...] + +You may specify a daemon instance a name (optional) if you would like to run +multiple daemons on a single server. + + +Remove a Metadata Server +======================== + +Coming soon... + +.. If you have a metadata server in your cluster that you'd like to remove, you may use +.. the ``destroy`` option. :: + +.. ceph-deploy mds destroy {host-name}[:{daemon-name}] [{host-name}[:{daemon-name}] ...] + +.. You may specify a daemon instance a name (optional) if you would like to destroy +.. a particular daemon that runs on a single server with multiple MDS daemons. + +.. .. note:: Ensure that if you remove a metadata server, the remaining metadata + servers will be able to service requests from CephFS clients. If that is not + possible, consider adding a metadata server before destroying the metadata + server you would like to take offline. + + +.. _MDS Config Reference: ../../../cephfs/mds-config-ref