There are two ways to solve the issues with dvSwitches I spoke about before. The first is to place vCenter onto an administrative per host vSwitch. The second is to create new dvSwitch portgroups but first ensure the portgroup is marked as ephemeral. But if you already have portgroups, how would you migrate from one portgroup to these ephemeral portgroups. In theory, ephemeral ports do not require vCenter to be active in order for a port assignment to take place. So how do you migrate from Static dvSwitch portgroups to Ephemeral dvSwitch portgroups?
It sounds like a difficult process but all in all it was not. All I did, as per Figure 1 was to add a new portgroup with a different naming convention and make it an Ephemeral port binding portgroup. Then all there was to do was to migrate the VMs from the old port-group to the new port-group.
In theory this should be all I need to avoid the issues with the default static binding. Such as not Failing-Safe but failure to boot VMs when vCenter is no longer around.
An alternative was to create an administrative regular vSwitch per node, which you can see in Figure 1, is the approach I originally took. But given that I like alternatives, this is definitely one method to take. In a resent reboot of my blade servers OA, this approach seems to work just fine for those VMs already switched over, but then again I do ensure vCenter and those VMs it requires boot first on a standard vSwitch. So I have not lost any functionality, but have gain some if vCenter is not running for any reason.
Edward L. Haletky, aka Texiwill, is an author, analyst, developer, technologist, and business owner. Edward owns AstroArch Consulting, Inc., providing virtualization, security, network consulting and development and TVP Strategy where he is also an Analyst. Edward is the Moderator and Host of the Virtualization Security Podcast as well as a guru and moderator for the VMware Communities Forums, providing answers to security and configuration questions. Edward is working on new books on Virtualization.