<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Aug 22, 2017 at 5:23 PM, Alan Griffiths <span dir="ltr"><<a href="mailto:apgriffiths79@gmail.com" target="_blank">apgriffiths79@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi,<div><br></div><div>I'm in the process of building a second ovirt cluster within the default DC. This new cluster will use the same storage domains as the original cluster, and I will slowly migrate VMs from the old cluster to the new.</div><div><br></div><div>Given that the old and new cluster hosts have a firewall between them I need to ensure that all relevant ports are open, with particular attention to the correct operation of SPM.</div><div><br></div><div>Is it sufficient to open TCP ports 16514 and 54321 to achieve this?</div><div><br></div><div>Thanks,</div><div><br></div><div>Alan</div></div>
<br></blockquote><div><br></div><div>One note: </div><div><br></div><div>when you say:</div><div>I will slowly migrate VMs from the old cluster to the new.<br></div><div><br></div><div>what do you mean exactly with "migrate"?</div><div>If you mean Live Migraton as described here:</div><div><a href="https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.5/html/Administration_Guide/sect-Migrating_Virtual_Machines_Between_Hosts.html" target="_blank">https://access.redhat.com/<wbr>documentation/en-US/Red_Hat_<wbr>Enterprise_Virtualization/3.5/<wbr>html/Administration_Guide/<wbr>sect-Migrating_Virtual_<wbr>Machines_Between_Hosts.html</a><br></div><div><br></div><div>please note that you can live migrate a VM only within the same cluster, not across.</div><div><br></div><div>You can edit a VM of a datacenter and change the cluster where it have to start, but you have to first shutdown the VM to do so.</div><div>Probably you already considered this and the related potential downtime for your services.</div><div><br></div><div>Gianluca</div></div></div></div>