Global Memory Usage Test

This test reports how well the ADC device uses the memory available to it, tracks shared memory usage by the device, and promptly alerts administrators to abnormal memory usage by the device.

Target of the test : A ADC VPX/MPX

Agent deploying the test : A remote agent

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

Configurable parameters for the test
Parameter	Description
Test Period	How often should the test be executed.
Host	The IP address of the host for which the test is being configured.
NetScaler Username and NetScaler Password	To monitor a ADC device, the eG agent should be configured with the credentials of a user with read-only privileges to the target ADC device. Specify the credentials of such a user in the NetScaler Username and NetScaler Password text boxes.
Confirm Password	Confirm the ADC Password by retyping it here.
SSL	The eG agent collects performance metrics by invoking NITRO (ADC Interface Through Restful interfaces and Objects) APIs on the target ADC device. Typically, the NITRO APIs can be invoked through the HTTP or the HTTPS mode. By default, the eG agent invokes the NITRO APIs using the HTTPS mode. This is why, the SSL flag is set to Yes by default. If the target ADC device is not SSL-enabled, then the NITRO APIs can be accessed through the HTTP mode only. In this case, set the SSL flag to No.

Measurements made by the test
Measurement	Description	Measurement Unit	Interpretation
Total memory	Indicates the total memory capacity of the ADC device.	MB
Total memory available	Indicates the total memory available for use in the packet engine (PE) of this ADC device.	MB
Memory allocated	Indicates the total amount of memory that is currently allocated to the ADC features.	MB
Percent of memory allocated	Indicates the percentage of memory that is allocated to the ADC features.	MB
Memory in use	Indicates the amount of memory that is currently utilized by the ADC device.	MB	A low value is desired for this measure. A consistent increase in this value could be indicative of a potential memory contention.
Percent of memory in use	Indicates the percentage of memory that is currently in use in this ADC device.	Percent
Free memory	Indicates the amount of memory that is currently unused in the ADC device.	MB	A high value is desired for this measure.
Total shared memory	Indicates the amount of memory that is allocated for sharing by this ADC device.	MB
Shared memory in use	Indicates the amount of shared memory that is currently in use in this ADC device.	MB	Ideally, this value should be low.
Percent of shared memory in use	Indicates the percentage of shared memory that is currently in use in this ADC device.	Percent	Ideally, this value should be low.