Performance metrics for hosts

Host metrics for VMware

You can view the metrics in Drive key metrics and Host miscellaneous metrics tables for the following resources:
  • HBAs
  • Drives
  • Data stores
  • VMDKs
Table 1. Drive key metrics
Metric Definition
I/O Rate (Read) The average number of read operations per second that are issued to the back-end storage resources.
I/O Rate (Write) The average number of write operations per second that are issued to the back-end storage resources.
I/O Rate (Total) The average number of I/O operations per second that are transmitted between the back-end storage resources and the component. This value includes both read and write operations.
Data Rate (Read) The average number of MiB per second that are read from the back-end storage resources.
Data Rate (Write) The average number of MiB per second that are written to the back-end storage resources.
Data Rate (Total) The average rate at which data is transmitted between the back-end storage resources and the component. The rate is measured in MiB per second and includes both read and write operations.
Response Time (Read) The average number of milliseconds for the back-end storage resources to respond to a read operation.
Response Time (Write) The average number of milliseconds for the back-end storage resources to respond to a write operation.
Response Time (Total) The average number of milliseconds for the back-end storage resources to respond to a read or a write operation.
Table 2. Host miscellaneous metrics
Metric Definition
Total CPU utilization (%) Average utilization percentage of the CPU(s) for a particular component over an interval.
Total Memory utilization (%) Average utilization percentage of the memory for a particular component over an interval.