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Capacity Runway in Prism Central calculates the "Runway" (time remaining before resource exhaustion) based on the consumption of User VMs running on the cluster.

If a cluster is configured with Storage-Only nodes (often used for dedicated Nutanix Files/Unified Storage deployments for profiles), the AHV scheduler is configured to prevent user VMs from running on these nodes (reserving resources strictly for CVMs and storage services). Since there are no general compute workloads (User VMs) consuming CPU/RAM, the Capacity Runway algorithm has no relevant "Guest VM" consumption data to analyze, resulting in the CPU and Memory fields being blank or not displayed, while Storage capacity might still be visible.

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Comprehensive and Detailed Explanation From Exact Extract of Nutanix End User Computing documents:

According to Microsoft RDS and Nutanix Best Practices:

GPO Configuration: The specific Group Policy Object (GPO) setting used to define which license servers an RD Session Host should contact is titled "Use the specified remote desktop license servers".

Redundancy: In this policy setting, the administrator can input a list of multiple license servers (IP addresses or FQDNs). If the first server in the list is unreachable (due to a cluster failure or maintenance), the host automatically attempts to contact the subsequent servers, thereby achieving the required redundancy.

Comprehensive and Detailed Explanation From Exact Extract of Nutanix and Citrix DaaS documents:

According to Citrix Cloud and Nutanix DR best practices:

High Availability Requirement: Citrix strongly recommends and practically enforces a requirement of at least two (2) Cloud Connectors per Resource Location (RL).

Reasoning: Cloud Connectors are "evergreen" components that update automatically from the cloud. During an update, a connector may reboot. If only one connector exists (Option A), the Resource Location would go offline, severing connectivity for the DR site.

Production vs. DR: A Disaster Recovery (DR) site is treated as a production Resource Location because it must be ready to accept user connections instantly during a failover. Therefore, the minimum N+1 redundancy rule applies, requiring 2 connectors.

A gold image is a master image that contains the operating system, drivers, patches, and configurations for a virtual desktop. A non-persistent Citrix MCS environment is one where virtual desktops are created from a gold image and discarded after each user session.

Citrix Machine Creation Services (MCS) is a tool that uses a gold image to create and manage virtual machines for Citrix Virtual Apps and Desktops environments. MCS can create different types of machines, such as pooled random, static assigned, or dedicated2.

One of the challenges of using MCS is managing multiple gold images for different user groups or application needs. Updating multiple gold images can be time-consuming and error-prone. Therefore, it is recommended to use a single base image without any applications and leverage another tool such as Microsoft System Center Configuration Manager (SCCM) to deliver applications dynamically to the cloned virtual desktops3.

This approach can simplify image management, reduce storage consumption, improve performance, and enhance user experience. SCCM can also provide additional features such as patch management, compliance enforcement, inventory reporting, etc.3