A company is implementing a new ESXi host cluster at its New York data center.
• The CIO has stated that the new ESXi cluster should be designed with enough failover capacity to sustain two ESXi host failures.
• Six ESXi hosts have been approved for this workload.
• The ESXi hosts are to be purchased from Dell with these specifications.
• 2×10 core 2.2GHz Intel CPU
• 128 GB of memory
• The workload is defined as 150 employee desktop virtual machines each with 3GB RAM reserves.
• All virtual machines should be protected by vSphere High Availability.
Which are two true statements regarding failover capacity? (Choose two.)
A. vSphere HA can be configured to reserve 25% of memory capacity for failover.
B. vSphere HA can be configured to specify two dedicated failover hosts.
C. vSphere HA can be configured to reserve 35% of memory capacity for failover.
D. vSphere HA can be configured to specify one dedicated failover host.
B and C
A) Memory reserved is not enough to sustain 2 hosts failure
B) Yes, requirements are to sustain 2 hosts failure. Dedicating 2 hosts would leave a total usable memory of 512 GB, which is enough to cover 450GB of VMs memory.
C) Yes, if you want to sustain 2 hosts failure you need to reserve the same amount of memory contribution of those hosts. In this case, 2 hosts out of 6 it’s 1/3 = 33.3%. So rounding up to 35% is correct.
D) No, solution needs to sustain 2 hosts failure
B & C.
You have the option in vSphere HA to reserved any number of hosts /or % of memory resources (1/3 = ~35%). These both enforce the CIO requirements.
B&C