eG Enterprise provides a specialized EverRun monitoring model, which keeps tabs on the state of a target PVM and the virtual environment it protects (which includes its disk and network resources).
Figure 1 : The layer model of the Everrun PVM
Each layer of is mapped to a series of tests. The eG agent, which should be deployed on a particular PVM, executes these tests at configured intervals. These tests then poll the SNMP MIB of the target PVM and extract a wealth of performance information related to that PVM from its MIB. Using these metrics, administrators can find quick and accurate answers to the following questions:
- What is the current state of the PVM - good, unknown, or failed?
- Is the PVM's disk in a good state currently,or has it failed?
- How are each of the XenServer hosts in the pool doing? Is any host in the degraded or failed state currently?
- Is any host experiencing any disk failures currently?
- Is any link adapter on any host in an error/failed state currently?
- Which ethernet path is being used by every link adapter on each host in a pool? Is the path used, the primary or secondary path of a redundant setup?
- Which ethernet adapter of this PVM is currently disabled?
- Has any ethernet adapter failed? Is the failed adapter used by the host or the PVM?