A new ESXi host is set up with two virtual machines. A memory limit is applied so that users will have predictable performance as virtual machines are added to the host.
What is the effect of applying a memory limit these virtual machines?
A.
No physical memory will be granted above the limit, unless expandable reservations arte enabled.
B.
No physical memory will be granted above the limit, but disk pages can be used.
C.
Physical memory will be granted above the limit under normal conditions, but he limit will be enforced if connection occurs.
D.
Physical memory will be granted above the limit under normal conditions. Disk pages will be used if connection occurs.
Explanation:
Expandable Reservation:
Use this check box to indicate that more than the specified reservation should be allocated if resources are available in a parent.Shares:
Specify the relative priority for a virtual machine if more than the reservation is available.Reservation:
Is a guaranteed lower bound on the amount of physical memory that the host reserves for the virtual machine, even when memory is overcommitted. Set the reservation to a level that ensures the virtual machine has sufficient memory to run efficiently, without excessive paging.After a virtual machine has accessed its full reservation, it is allowed to retain that amount of memory and this memory is not reclaimed, even if the virtual
machine becomes idle. For example, some guest operating systems (for example, Linux) might not access all of the configured memory immediately
after booting. Until the virtual machines accesses its full reservation, VMkernel can allocate any unused portion of its reservation to other virtual machines.
However, after the guests workload increases and it consumes its full reservation, it is allowed to keep this memory.Limit: Is an upper bound on the amount of physical memory that the host can allocate to the virtual machine. The virtual machines memory allocation is also
implicitly limited by its configured size. Overhead memory includes space reserved for the virtual machine frame buffer and various virtualization data structures.