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?
A.
DRS will not automatically defragment the resources in the event of a failure.
B.
DRS will automatically defragment the resources in the event of a failure.
C.
DPM cannot be used in this configuration.
Explanation:
With the rebuild of vSphere 5 HA functionality, it is possible for VMware HA to ask DRS
todefragment a cluster if systems are not going to restart correctly. However, this functionality is
disabled if thedefault or automatic slot size calculation is changed using the override setting. In
situations like this, from adesign perspective, a percentage-based admission control policy would
be more beneficial.
Chapter 4, The Importance of vMotion, VMware HA, and Fault Tolerance