This chart displays the 10 virtual machines with the highest number of write operations. Data is not displayed when the virtual machine is powered off.

This chart is located in the Performance view of the datastore Performance tab. The counter can also be displayed for datastore cluster charts.

Table 1. Data Counters

Chart Label


Write IOPs per Virtual Machine Disk

Number of disk write commands completed on each virtual machine disk on the host.

Write rate = blocks read per second × block size

  • Counter: numberWriteAveraged

  • Stats Type: Rate

  • Unit: Number

  • Rollup Type: Average

  • Collection Level: 3