| Network | IN | The percent of network bandwidth across the VMHost used for downloads. |
| Network | OUT | The percent of network bandwidth across the VMHost used for uploads. |
| CPU Usage | Total CPU | The total amount of CPU used across the VM as a percent. |
| CPU Usage | Co-stop % | Co-Stop time measures when a virtual machine is ready to run, but unable to run due to co-scheduling constraints. See blog on VMware Advisory Conditions in SQL Sentry for more information. |
| CPU Usage | Ready Time % | Percentage of time when a vCPU is ready to do work, but must wait for the hypervisor to schedule that work on one or more physical CPUs. CPU ready time is a summation, and is dependent on the number of virtual machines on the host and their CPU loads. See the blog on VMware Advisory Conditions in SQL Sentry for more information. |
| System Memory | Active | Amount of memory that is actively used, as estimated by VMkernel based on recently touched memory pages. |
| System Memory | Consumed | Amount of machine memory used on the host. Consumed memory includes memory used by the service console, the VMkernel, vSphere services, and the total consumed metrics for all running virtual machines. |
| System Memory | Overhead | Total of all overhead metrics (including VM overhead and VMKernel overhead) for powered-on virtual machines, and the overhead of running vSphere services on the host. |
| System Memory | Granted | Amount of machine memory or physical memory that's mapped for the host. |
| System Memory | Available | Amount of machine memory or physical memory that's available for the host. |
| System Memory | Swap In | The percentage of memory read in by the VMkernel swap file from memory to disk across all the virtual machines on the VMHost. |
| System Memory | Swap Out | The percentage of memory written by the VMKernel swap file from memory across all the virtual machines on the VMHost. |
| Disk IO | ms/ Read by Datastore | The amount of time it takes in milliseconds for the VMHost to read data from each Logical Unit Number (LUN) on the datastore. |
| Disk IO | ms/ Write by Datastore | The amount of time it takes in milliseconds for the VMHost to write data from each Logical Unit Number (LUN) on the datastore. |
| Disk IO | MB/sec Read by Datastore | The amount of data in megabytes read by the VMHost from each Logical Unit Number (LUN) on the datastore per second. |
| Disk IO | MB/sec Write by Datastore | The amount of data in megabytes written to the VMHost from each Logical Unit Number (LUN) on the datastore per second. |
