Informix Chunks Test

This test collects the performance statistics pertaining to the disk space usage and disk I/O of a chunk.

Target of the test : An Informix Dynamic server

Agent deploying the test : An internal agent

Outputs of the test : One set of results for every chunk in an Informix database server.

Configurable parameters for the test
Parameters Description

Test Period

This indicates how often should the test be executed.


The IP address of the Informix Dynamic server.


The port number at which the specified host listens to.


The Informix server instance being monitored.


A valid Informix user name.


The password corresponding to the above user.

Confirm Password

Confirm the Password by retyping it here.


Specify the language/locale in which your database is installed. This will allow you to return the query in the language supported by your database. By default this attribute is set to “none”, which means that by default, queries are returned in the English locale.


Specify the language/locale in which the eG agent is running. Normally, when you use an internal agent to monitor Informix, the ClientLocale and DBLocale will be same. However, the ClientLocale may differ when you are monitoring the Informix tests using a remote agent (agentless monitoring). By default, the ClientLocale is set to “none”, indicating that the eG agent runs in the English locale, by default.

Measurements made by the test
Measurement Description Measurement Unit Interpretation

Chunk size

The total size of a chunk.



Free pages

The amount of unused space in a chunk.



Percent used

The percentage of space used in a chunk.




The status of a chunk.


Possible values are:

  • 0 - Normal
  • 1 - Recovering
  • 2- Offline
  • 3- Inconsistent

Disk reads

The rate of disk reads.



Disk writes

The rate of disk writes.



Pages read

The number of pages read from the chunk per second.



Pages written

The number of pages written to the chunk per second.