For each data mover in the DME of a VNX system, this test monitors the directory name lookup, openfile, and buffer caches, and reports the percentage of requests that have been serviced by each of these caches. Deficiencies in cache usage are thus revealed, thereby enabling administrators to assess its impact on storage system performance and to investigate the reasons for the bad cache usage.

This page depicts the default parameters that need to be configured for the VnxCacheStatTest.

• The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

• 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.

When changing default configurations of tests, the values with “$” indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to “xyz” and $port will be changed to “80” when configuring a test.