According to the Nutanix Support & Insights website1, capacity runway is an estimate of how long your cluster can support its current workload before running out of resources2. The exhibit shows that your cluster has a storage runway of only 1 month, which means you will run out of storage space soon. However, your CPU and memory runways are much longer (more than 2 years), which means you have plenty of CPU and memory resources available. Therefore, it might be possible to reduce the storage capacity requested by your workload or optimize your storage utilization to extend your storage runway. Alternatively, you could also increase the storage capacity for physical nodes or add new physical nodes to the configuration, but these options might be more costly and complex.

WORM stands for write once, read many, and it is a feature that prevents deletion or modification of object data1. Nutanix Objects supports WORM with industry-recognized security standards1.

Nutanix Files supports NFSv4, which includes advanced features such as strongly mandated security1. NFSv4 supports different security flavors such as sys, krb5, krb5i, and krb5p1. The sys flavor uses UNIX-style authentication based on UID/GID mapping1. The other flavors use Kerberos authentication with different levels of protection1.
Since the NFS v4 export share was configured with System authentication, which is equivalent to sys flavor1, the RHEL administrator should issue the mount command with the option -o sec=sys21.

To use Nutanix Volumes with Linux clients, you must install and configure an iSCSI initiator on each client." Therefore, the administrator should ensure that the iSCSI service is started on the Linux client before discovering or connecting to the Volumes target.
https://next.nutanix.com/installation-configuration-23/data-services-ip-iscsi-33804

According to Nutanix Objects User Guide1, "Objects supports Active Directory (AD) authentication for users and groups that are part of an AD domain." However, "To access a bucket using AD credentials, you must have permissions on that bucket." Therefore, the administrator should verify that the sharing policies for the bucket allow access for the AD account.