IOPS Offload Test

The key benefit of using the Atlantis ILIO in a virtual target environment is storage optimization. The Atlantis ILIO achieves storage optimization by receiving a request, retrieving the data of the request from the backend storage and caching it in the NFS datastore. When the same request is made subsequently, the Atlantis ILIO retrieves the data from the datastore and serves it thus reducing the IOPS operation on the backend storage. Administrators may want to analyze the performance of the Atlantis ILIO from time to time so that any performance related issues can be detected proactively and rectified soon after! The IOPS Offload test helps the administrators to analyze the performance of the Atlantis ILIO without a glitch! Using this test, you may figure out the how well the Atlantis ILIO has served the reads/writes and how well the Atlantis ILIO has served the reads/writes from the time of boot. Comparing the values will help the administrators figure out the performance glitch, if any.

Target of the test : An Atlantis ILIO server

Agent deploying the test : An internal agent

Outputs of the test : One set of results for the Atlantis ILIO server that is to be 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 this test is to be configured.
Port	The port at which the specified Host listens. By default, this is NULL.

Measurements made by the test

Measurement	Description	Measurement Unit	Interpretation
Reads offloaded during the last measure period	Indicates the percentage of reads offloaded by this server during the last measurement period.	Percent	A high value is desired for these measures. A sudden/gradual decrease in the values of these measures indicate that the Atlantis ILIO is not efficient enough to serve the requests thus increasing the I/O activity i.e., load on the backend storage.
Writes offloaded during the last measure period	Indicates the percentage of writes offloaded by this server during the last measurement period.	Percent
Total offloads during the last measure period	Indicates the total percentage of reads and writes offloaded by this server during the last measurement period.	Percent	The value of this measure is the average of the Reads offloaded during the last measurement period and the Writes offloaded during the last measurement period measures.
Reads offloaded since system boot	Indicates the percentage of total reads offloaded by this server since the system reboot.	Percent	A high value is desired for these measures.
Writes offloaded since system boot	Indicates the percentage of total writes offloaded by this server since the system reboot.	Percent
Total offloads since system boot	Indicates the percentage of total reads and writes offloaded by this server since the system reboot.	Percent	The value of this measure is the average of the Reads offloaded since the system boot and the Writes offloaded since the system boot measures.