Discovery and Polling in VMware Environments

capm can discover and monitor your VMware virtual machines and ESX hosts. The discovery and monitoring process for these devices and components differs to accommodate the collection of data from vCenter. You can discover the VMs and ESX Hosts directly with SNMP, and you can collect vCenter data through the vCenter Server Application Insight Module (VCAIM).
capm250
CA Performance Management
 can discover and monitor your VMware virtual machines and ESX hosts. The discovery and monitoring process for these devices and components differs to accommodate the collection of data from vCenter. You can discover the VMs and ESX Hosts directly with SNMP, and you can collect vCenter data through the vCenter Server Application Insight Module (VCAIM).
CA Performance Management
discovers ESX hosts and virtual machines in the following ways:
  • Through ICMP
  • Through SNMP, if the servers have an SNMP agent deployed
  • Through discovery of a server running systemEdge with the VCAIM
Only one device item is created for each ESX host or virtual machine.
By default, the change detection rate for virtual machines is 15 minutes. The change detection rate for ESX hosts is 24 hours.
Any virtual device (Virtual Machine or ESX), discovered with systemEdge is not polled for its vCenter statistics when the device lifecycle state is Retired.
systemEdge Discovery
When discovery runs for a server running systemEdge with the VCAIM,
CA Performance Management
uses the following logic during discovery of the vCenter Server:
The VMware ESX Host monitoring profile discovers all ESX hosts, and
CA Performance Management
uses the following rules to create devices:
  • CA Performance Management
    creates SNMP devices for each device with an IP address that is used by another discovered device. The device type is ESX Host and Server.
  • CA Performance Management
    creates pingable devices with the ESX Host device type in the following situations:
    • A device does not have an IP address.
    • The IP address of a device is not used by another device.
The VMware Virtual Machine monitoring profile discovers all virtual machines, and
CA Performance Management
uses the following rules to create devices:
  • CA Performance Management
    creates SNMP devices for each device with an IP address that is used by another discovered device. The device type is Virtual Machine and Server.
  • CA Performance Management
    creates pingable devices with the Virtual Machine device type in the following situations:
    •  A device does not have an IP address.
    • The IP address of a device is not used by another device.