eG Monitoring
 

Measures reported by NSDevTest

In most environments where the NetScaler appliance is deployed, administrators may want to figure out the performance and efficiency of the NetScaler device. If the status of the NetScaler device is up, then they can figure out that the device is operating without a glitch! If the NetScaler device experiences any issues, then the environment may also get affected and administrators may find it diffuclt to load balance the servers sitting in the backend. For an environment to operate without any technical issues, it is the onus of the administrators to continuously monitor the NetScaler device. The NSDevTest test helps administrators in this regard!

This test scans the syslog file for the events related to the target NetScaler device and reports the number of times the status of the device was up/down/out of service. In addition, this test also helps administrators to identify the number of times the NetScaler system was started/stopped, the number of times the Route6 was up/down and the number of times the ns.conf file was read for configuration information by the NetScaler device. Using this test, administrators can identify if the performance of the NetScaler device is maintained consistently or if any performance degradation is noticed.

For this test to run and report metrics, the NetScaler device should be configured to create a Syslog file in a remote Syslog server, where the details of all interactions with the NetScaler appliance will be logged. To know how to configure the Syslog server where this Syslog file should be created, Click Here,

Outputs of the test : One set of results for the NetScaler appliance being monitored

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
device_down_event Indicates the number of times the NetScaler device was down. Number Ideally, the value of this measure should be zero.
device_out_off_service Indicates the number of times the status of the NetScaler device was Out of Service. Number  
device_up_event Indicates the number of times the NetScaler device was up. Number  
ns_sys_stopped Indicates the number of times the NetScaler system was stopped. Number  
ns_sys_started Indicates the number of times the NetScaler system was started. Number  
cpu_started Indicates the number of times the CPU of the NetScaler device was started. Number  
route6_down Indicates the number of times Route6 was down. Number  
route6_up Indicates the number of times Route6 was up. Number  
snmp_start_alarm Indicates the number of times an SNMP module started an alert. Number An alert will be generally raised when the value of a monitored attribute crosses the threshold value.
snmp_stop_alarm Indicates number of times an SNMP module stopped an alarm. Number  
ns_start_read_conf Indicates the number of times the NetScaler device has started reading the configuration from ns.conf file (during boot up). Number A high value for this measure is a cause of concern as this may indicate that the NetScaler device is either corrupted or is often restarting.
ns_compt_read_conf Indicates the number of times the NetScaler device has completed reading the configuration from ns.conf file (during boot up). Number