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<body style="font: 10pt/normal Segoe UI; font-size-adjust: none; font-stretch: normal;"><div class="GroupWiseMessageBody" id="GroupWiseSection_1510003423000_mweiss@suse.com_A842D18121330000A9A50002A5DB3086_"><div>Do we know if any SES/ceph service or installation / configuration routine relies on "proper" DNS setup (forward and reverse lookup for public network addresses of all servers in the cluster) or does ceph use IP addresses only for sure?</div><div>What can / will / might happen in case the "mon name" resolves via DNS to the admin network address and not the public network address?</div><div><br></div><div>Thanks</div><div>Martin<br></div><div class="GroupWiseMessageBody" id="GroupWiseSection_1510003421000_mweiss@suse.com_A842D18121330000A9A50002A5DB3086_"><span class="GroupwiseReplyHeader"><br><br><span style="display: none;"></span><br></span><div><div>Hi list,</div><div>does the following scenario ring any alarm bells with anyone?</div><div>The cluster has a salt-master, MONs and OSDs. All nodes have 3 networks: a </div><div>management network and public- and cluster-network. All nodes have a hostname </div><div>that resolves via DNS to the ip on the management network. The ips on cluster- </div><div>and public-network don't correspond to DNS names.</div><div>The MONs derive their IDs from the short hostname, which would resolve to the ip </div><div>addresses on the management network if one would attempt that.</div><div>The cluster deployed and operates fine. Is there any conceivable disadvantage </div><div>with this setup? For example:</div><div>Should there be dns names for the public-network ip addresses?</div><div>Does DeepSea have any issue (or will have issues in the future) with running on </div><div>the management network (the salt master has access to the public-network)?</div><div><br></div><div>Imho this setup should work fine, but I might be missing something.</div><div>Best,</div><div>Jan</div><div><br></div><div>-- </div><div>Jan Fajerski</div><div>Engineer Enterprise Storage</div><div>SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton,</div><div>HRB 21284 (AG Nürnberg)</div></div></div></div></body></html>