Flashcards
Virtualization 4-8
Cards in this deck (6)
- 1How does ESXi manage and use memory?Vm actual memory
The configured amount of a VMs memory is a VMKernel construct presented to VM
Hypervisor
The actual amount of memory a VM is using is dependent on the Resource Settings
dynamic memory
memory used for the vm's overhead - 2What does ESXi's Reservation do?This is memory that is reserved for a vm in the case of a contention. how ever if it is not using it it will share it
- 3what happens when ESXi over commits memory?The system uses virtualization to dynamically allow heavily loaded VMs to use memory not being used by lightly loaded VMs
- 4What happens in Ballooning?The Hypervisor creates an artificial need for RAM in the guest to reclaim memory.
- 5what is TPS?Transparent Page sharing
TPS removes any redundant or duplicate pages - 6What are Shadow pages?The way the hypervisor tracks guest to host memory mappings