Hi,
you probably mean the following announcement: https://www.nutanix.com/ibm ?
See also https://next.nutanix.com/server-virtualization-27/interesting-blog-post-alert-how-nutanix-and-ibm-are-powering-the-next-wave-24622
While there are some topics dealing with IBM power in this forum (e.g. search for “IBM power”), I think this still a question can be answered by either Nutanix or IBM support, not the CE forum...
IBM clients can run AIX workloads side by side, not only with Linux on Power, but even with x86 workloads running on other clusters, managed all from the single pane of glass Nutanix Prism Central console.
IBM Hyperconverged Systems powered by Nutanix enables clients to run select AIX applications like IBM Websphere Application Server and Db2 on a hyperconverged private cloud.
There are no plans to support AS400 IBM workloads yet.
For more information see this white paper:
https://www.ibm.com/downloads/cas/BZP46MAV