Performance metrics for virtual machines

Monitor the performance metrics that are collected for virtual machines.

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. Node 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.

Table 3. Virtual machine miscellaneous metrics
Metric	Definition
Host VM CPU Ready Utilization (%)	Percentage of virtual machine total CPU time waiting for host CPU to become available
Host VM Memory Ballooned Utilization Percentage (%)	Percentage of virtual machine memory used by VMware ballooned driver