2V0-620 · Question #177
Which two High Availability (HA) Cluster admission control policies can help avoid resource fragmentation? (Choose two.)
The correct answer is A. Define failover capacity by static number of hosts C. Use dedicated failover hosts. HA admission control policies that reserve capacity at the host level prevent resource fragmentation by keeping whole host resources available for failover rather than scattering small reservations across the cluster.
Question
Which two High Availability (HA) Cluster admission control policies can help avoid resource fragmentation? (Choose two.)
Options
- ADefine failover capacity by static number of hosts
- BDefine failover capacity by reserving a percentage of the cluster resources
- CUse dedicated failover hosts
- DUse Virtual Machine Monitoring
How the community answered
(42 responses)- A76% (32)
- B7% (3)
- D17% (7)
Why each option
HA admission control policies that reserve capacity at the host level prevent resource fragmentation by keeping whole host resources available for failover rather than scattering small reservations across the cluster.
Defining failover capacity by a static number of hosts reserves entire host-level resources for failover, ensuring contiguous blocks of capacity remain intact and preventing fragmentation across the cluster.
Reserving a percentage of cluster resources distributes reserved capacity in small increments across all hosts, which can cause resource fragmentation rather than preventing it.
Dedicated failover hosts set aside specific ESXi hosts exclusively for HA failover, completely eliminating fragmentation since those hosts are never used for normal VM workloads and remain fully available.
Virtual Machine Monitoring is an HA feature that restarts VMs when heartbeats are lost - it is not an admission control policy and has no effect on resource fragmentation.
Concept tested: vSphere HA admission control policies and resource fragmentation avoidance
Source: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.avail.doc/GUID-85D9D714-D835-4BEF-8C88-C61A9D9E6A50.html
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