A cluster of six AHV nodes has a Memory Runway of only 12 days, while the current cluster memory usage shows 60% utilization. What could be the reason?
A.
The cluster has no historical data, causing the Runway to default to a conservative 12 days.
B.
The cluster memory usage is continuously increasing during the last 21 days.
C.
The cluster contains a simulated workloads scenario.
D.
The cluster is configured with HA in " Guaranteed Mode " .
In Prism Central, Runway Analysis is not a simple reading of current utilization; it is a forecast based on historical consumption trends. Nutanix documentation explains that capacity planning and runway use machine learning and historical resource behavior to estimate when CPU, memory, or storage will run out. That means a cluster can still show only 60% memory used today and yet have a short memory runway if the memory-consumption trend has been climbing steadily and rapidly over recent history. In this scenario, the most likely reason for only 12 days of runway is sustained growth in memory use over the historical observation period. ( Nutanix )
The distractors do not fit the documented behavior as well. Nutanix does support scenario modeling, but a low runway in the standard view is primarily a forecast outcome, not a default penalty for missing history or a result of guaranteed HA mode by itself. HA reservations can reduce available effective capacity, but the wording of the question points to forecasting logic rather than static reservation math. Since Nutanix runway is based on actual consumption trends, the answer that best explains a low runway despite moderate present-day utilization is that memory usage has been continuously increasing, which is option B. ( Nutanix )
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