Definition: – You have allocated certain amount of virtual hardware resources to a virtual machine and the resources are not sufficient for the VM.
Impact: This would manifest in performance issues such a high latency/slow responses/sluggish behaviour/freeze/hang.
Security Hardening has multiple facets
- Understanding how an ESXi hypervisor is hardened right out of the box
- Features that may be enabled/disabled for additional security
- Granular hardening by means of Operational hardening, parameter setting & configuration modifications
Outlined here is a customer facing presentation that I delivered at vForum at Sydney Australia.
Security Hardening in vSphere
Typically administrators have a perception that inorder to increase performance of a workload , the VM’s virtual hardware capacity needs to be increased, perhaps by providing more RAM /CPU.