After a security audit, a company is being required to implement a new subnet for...

After implementing a new subnet for all Nutanix services, it is necessary to rediscover the new target or reestablish file sessions. When Nutanix is configured with a new network subnet, all the services running on the Nutanix cluster need to communicate with each other over the new network. Rediscovering the new target or reestablishing file sessions allows Nutanix to start using the new IP addresses on the new subnet, ensuring that communication between the different Nutanix services is established.

According to Nutanix Support & Insights1, “If you change the IP address of a Controller VM, hypervisor or IPMI interface on any node in a cluster that has iSCSI or Files enabled, you must rediscover the new target or reestablish Files sessions.” This is because “the iSCSI and Files services use static IP addresses for communication.”