System Administrator

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

VMware: How to identify the performance of CPU & Memory Metrics Most of the times, We find difficulty to understand the Performance metrics of Virtual Machine displayed in the vCenter at my initial stages of learning. But Now I believe that got little bit understanding. This post is for to help  the VMware beginners to understand Virtual Machine Performance metrics. Understanding the Performance metrics of virtual Machine is extremely useful  to troubleshoot the virtual Machine Performance issues. There are 2 Places Where we can check the Performance metrics of Virtual Machine in vCenter Server 1. Summary Tab of Virtual Machine 2.Resource Allocation Tab of Virtual Machine –> Let’s Take a detailed look of each virtual machine performance metrics. Below Snapshot is the general overview about the Virtual Machine and its allocated resources. My virtual Machine has allocated with 1vCPU and 4096 MB (4 GB) of Memory  Memory Overhead   (164.47 MB) ESX Hosts re