VDCD510 · Question #26
You are designing a VMware HA cluster. Due to project requirements, it has been agreed that the admission control policy is based on the number of host failures tolerated per cluster. However…
The correct answer is A. DRS will not automatically defragment the resources in the event of a failure. With the rebuild of vSphere 5 HA functionality, it is possible for VMware HA to ask DRS to defragment a cluster if systems are not going to restart correctly. However, this functionality is disabled if the default or automatic slot size calculation is changed using the override…
Question
You are designing a VMware HA cluster. Due to project requirements, it has been agreed that the admission control policy is based on the number of host failures tolerated per cluster. However, because there are a number of small web servers and one large database server with large reservations, the slot size has been manually configured. What is the impact of this configuration?
Options
- ADRS will not automatically defragment the resources in the event of a failure.
- BDRS will automatically defragment the resources in the event of a failure.
- CDPM cannot be used in this configuration.
How the community answered
(25 responses)- A76% (19)
- B8% (2)
- C16% (4)
Explanation
With the rebuild of vSphere 5 HA functionality, it is possible for VMware HA to ask DRS to defragment a cluster if systems are not going to restart correctly. However, this functionality is disabled if the default or automatic slot size calculation is changed using the override setting. In situations like this, from a design perspective, a percentage-based admission control policy would be more beneficial. Chapter 4, The Importance of vMotion, VMware HA, and Fault Tolerance
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