topic Re: Is it even possible to expand workload domain cluster that is working under SDDC? in VMware Cloud Foundation Discussions

Is it even possible to expand workload domain cluster that is working under SDDC?

PiotrBerent — Tue, 04 Apr 2023 15:34:05 GMT

So, we have this marvelous 6-node vSAN stretched cluster, elegantly divided into 2 availability zones - each zone flaunts 3 ESXi hosts with the exact same exquisite hardware configuration. Our humble desire was to extend this masterpiece by adding just 1 host to each of these breathtaking availability zones. With enthusiasm, we attempted both methods: via an API call garnished with a JSON payload, and through the ever-charming GUI.

Lo and behold, from the JSON payload, we were graced with an error:

"VDS(s) specified in the input spec ([w01-cl01-vds02]) and in the existing cluster ([w01-cl01-vds02, w01-cl01-vds01]) do not match." How intriguing!

And, as if the universe had a sense of humor, in the SDDC GUI, the option to add a host to the cluster was greyed out, accompanied by this delightful comment:

"Add Host feature is disabled for Stretched Clusters." Ah, the irony!

Oh, how could I forget to mention that the hosts we so dearly wished to add are, in fact, blessed with the exact same hardware specifications as the already existing nodes? Indeed, this divine harmony of hardware was meant to ensure a seamless expansion of our glorious vSAN stretched cluster.

And yet, despite our meticulous planning and the uniformity of our hardware, we were faced with these perplexing obstacles, both in the JSON payload and the SDDC GUI. It seems that our quest to expand this magnificent creation has been met with an ironic twist of fate.

So, with great sarcasm and a heavy heart, we must ask again: Is this a bug, or is it a feature?

Re: Is it even possible to expand workload domain cluster that is working under SDDC?

islammanjurul — Thu, 06 Apr 2023 04:42:26 GMT

nobody knows a solution? Even I am facing a similar issue, this time with licensing, two different dated license, now not able to add new hosts due to vSAN cluster only allow single license.

Re: Is it even possible to expand workload domain cluster that is working under SDDC?

CyberNils — Tue, 08 Aug 2023 08:04:12 GMT

I think the error messages are pretty clear. You need to edit your json file to make it match your environment. Post the file here for help or call VMware Support and they will help you.

Re: Is it even possible to expand workload domain cluster that is working under SDDC?

MC1903 — Thu, 12 Oct 2023 08:06:03 GMT

Did you ever manage to expand this workload domain stretched cluster?

Is your hardware VCF on VxRail or VCF on vSAN ready node?

The operation is supported by API only.

From the VMware Cloud Foundation - Planning Management Operations v4.3 training notes: