VMware 4817V62 Administration Guide - Page 261
Working with Performance Statistics, Statistics Collection for vCenter Server
View all VMware 4817V62 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 261 highlights
Working with Performance Statistics 22 You can configure how statistics are collected and archived for your vCenter Server system. This determines the data available in the performance charts, which you use to monitor and troubleshoot performance in your environment. This chapter includes the following topics: n "Statistics Collection for vCenter Server," on page 261 n "vCenter Server Performance Charts," on page 268 n "Monitoring and Troubleshooting Performance," on page 273 Statistics Collection for vCenter Server You can collect statistical data for all managed objects in your vCenter Server system. Statistical data consists of CPU, memory, disk, network, system, and virtual machine operations metrics. Table 22-1 lists each metric group and describes the type of data collected. Table 22-1. Metric Groups Metric group Description CPU CPU utilization per host, virtual machine, resource pool, or compute resource. Memory Memory utilization per host, virtual machine, resource pool, or compute resource. The value obtained is one of the following: n For virtual machines, memory refers to guest physical memory. Guest physical memory is the amount of physical memory presented as a virtual-hardware component to the virtual machine, at creation time, and made available when the virtual machine is running. n For hosts, memory refers to machine memory. Machine memory is the random-access memory (RAM) that is installed in the hardware that comprises the ESX/ESXi system. Disk Disk utilization per host, virtual machine, or datastore. Disk metrics include input/output (I/O) performance (such as latency and read/write speeds), and utilization metrics for storage as a finite resource. Network Network utilization for both physical and virtual network interface controllers (NICs) and other network devices, such as the virtual switches (vSwitch) that support connectivity among all components (hosts, virtual machines, VMkernel, and so on). VMware, Inc. 261