A company runs several instances of an application that requires large amounts of memory. Which three metrics are checked to diagnose a memory bottleneck at the ESXi host level? (Choose three)
A.
MEMSZ
B.
MEMCTL
C.
SWAP
D.
ZIP
E.
MCTLTGT
Explanation:
THIS IS A HIGHLY DEBATED QUESTION – SOOoooo If you think it is wrong please research thoroughly before requesting an update… an official response from VMware would be nice. 😀
3 metrics to diagnose a memory bottleneck at the ESXi host level: MEMSZ, MEMCTL, SWAP.
Page 52,53 of vsphere-esxi-vcenter-server-50-monitoring-performance-guide.pdf
MEMSZ (MB) Amount of physical memory allocated to a resource pool or virtual machine.
MEMCTL (MB) Displays the memory balloon statistics. All numbers are in megabytes.
SWAP (MB) Displays the ESXi swap usage statistics. All numbers are in megabytes. (When the VMkernel on the host is swapping memory to disk).
ZIP (MB) Displays the ESXi memory compression statistics. All numbers are in megabytes.
MCTLTGT (MB) Amount of physical memory the ESXi system attempts to reclaim from the resource pool or virtual machine by way of ballooning.Revised; Answer is MEMSZ,MEMCTL,SWAP. Checked with VMWARE on this. Renegade_ZA