Virtual Networking is one of the Key components of Datacenter. If all your Critical VMs running on highly redundant & high speed SAN or Ethernet Network but if VMs can’t communicate with each other then everything is useless.
Virtual Machines are one of the most important and critical entity of entire datacenter.
If Virtual machine is not working or becomes inaccessible, every other issue whether its Networking, Storage, Cluster etc.. becomes second priority.
Check out Virtual Disk Performance analysis configured with Eager Zero, Lazy Zero and Thin Provisioning Disk Format. We have captured Write measurement performance at VM level and LUN level using esxtop command.
Thin Provisioning is VMware vSphere Technology allows Virtual Disk storage allocation on demand & allocate storage space only when VM needs it.
NUMA architecture is a shared memory architecture that describes the placement of main memory modules with respect to processors in a multiprocessor system.