add CVM to cluster with an older NOS version?


Userlevel 1
Badge +6
for preperation of a customer demo i've upgraded a three node CVM to 4.0.2.2. i have one additional cvm with 4.0.2.1: the ui is hanging at "SAving" when I try to add the "older" cvm to the cluster. could that be the issue?

4 replies

Userlevel 1
Badge +6
the version has to be the saem as stated in the documentation:


I 've done the upgrade, but the issue is the same. let's investigate further...
Userlevel 7
Badge +35
Hi @manfred

Thanks for the questions, @dlink7 or @DonnieBrasco can you can provide @manfred some guidance on this issue?

Thans for the help folks!
Userlevel 4
Badge +18
It is a requirment to have CVM's running on same NOS version which are part of the NOS cluster else it can create weird issues. If you have 3 CVM's running on common NOS version and there is one odd one, I suggest remove that node from the cluster and they re-image it with the matching NOS version. For removing node from cluster, you can follow the steps mentioned in Nutanix document. link for the same is mentioned below.

https://portal.nutanix.com/#/page/docs/details?targetId=NOS_Advanced_Administration-NOS_v4_0:appliance_node_remove_t.html

Hope it helps.
Userlevel 1
Badge +6
hi,

the fourth node is actually not in the nutanix cluster.
the 3 node cluster has 4.0.2.2
the fourth node is not attached and I did an upgrade to 4.0.2.2 (cluster -upgrade_node)

i will try imaging the node fresh with 4.0.2.2 and retry the cluster expansion.

thanks and regards
Manfred

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