Vnx Statmon Service Test

The statMonService, when setup and started on a data mover, listens for requests for statistics related to that data mover from the Control Station and returns the statistics so requested. To monitor and report on data mover performance, the eG agent relies on the statMonService running inside the data mover. Therefore, if any test executed by the eG agent on a data mover fails or does not report measures, it would be a good idea to first check whether the statMonService is up and running on that data mover, before proceeding to troubleshoot. The Vnx Statmon Service test performs this status check and reports the result. This test queries every data mover in the VNX for File system for the current status of the statMonService and reports whether the service is currently running or not. If the service is active on a data mover, the test additionally reports the number of incoming network connections to that data mover and the maximum number of network connections that are permitted on that data mover. This way, the test also helps administrators figure out whether/not connection usage is optimal.

  Target of the test : An EMC VNX Unified Storage system

Agent deploying the test : A remote agent

Outputs of the test : One set of results for each data mover in the DME of the EMC VNX Unified Storage system.

Configurable parameters for the test

Parameter	Description
Test Period	How often should the test be executed.
Host	The IP address of the storage device for which this test is to be configured.
Controller Station IP	The Control Station is the management station for the VNX for File system, and enables control and configuration of the system. The eG agent uses the CLI that runs on the Control Station to monitor and manage the performance of the VNX for File system. To enable the eG agent to use this CLI, specify the IP address of the Control Station in the Controller Station IP text box. By default, the IP address of the host will be displayed here.

Measurements made by the test

Measurement	Description	Measurement Unit	Interpretation
Is service available?	Indicates whether/not the statmon service is started on this Data Mover.		If the statmon service is started, then this measure will report the value Yes. If the statmon service is not started, then this measure will report the value No. The table below lists the numeric values that correspond to each of the states mentioned above: State Numeric Value Yes 1 No 0 Note: Typically, this measure will report the States indicated in the table above as its values. However, in the graph of this measure, the States will be represented using their numeric equivalents only - i.e., 0 and 1.
Maximum connections	Indicates the maximum number of network connections that can be established with this data mover.	Number
Current connections	Indicates the current number of network connections to this data mover.	Number
Connection usage	Indicates the percentage of permitted connections that are currently in use.	Percent	A low value is desired for this measure. A value close to 100% indicates that too many connections have been established with the data mover. Compare the value of this measure across data movers to identify which data mover will very shortly be rendered inaccessible because of a lack of connections. You may consider pre-emptively resetting the maximum number of connections of that data mover to avoid such an outcome.