Q & A: VMware DRS Interview Questions
Q1: what is the default invocation period for DRS. Can we change this. If yes then how? Ans: The default invocation period is 300 seconds (5 minutes). But this can be changed via the configuration file vpxd.cfg. We have to change the value of <pollperiodsec> as shown below: <config> <drm> <pollperiodsec> 300 </pollperiodsec> </drm> </config> Just change the value 300 to a custom value defined by you. The range of supported value is 60 secs to 3600 secs. Q2: What is the role of VPXA in DRS? Ans: VPXA is the vCenter agent that runs inside Esxi hosts and it enables a 2 way communication between Esxi hosts and vCenter Server. VPXA is responsible for: Keeping the status of Esxi and VM’s in sync It sends info to vCenter server when a VM’s power state is changed or a VM is vMotioned from one host to other. DRS uses this information which is presented by Esxi hosts to vCenter server for calculating the load balance and...