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Measures reported by IopsOffloadTest

The key benefit of using the Atlantis ILIO in a virtual target environment is I/O optimization. The Atlantis ILIO achieves I/O 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 IopsOffloadTest test helps the administrators to analyze the performance of the Atlantis ILIO without a glitch! Using this test, you may figure out 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.

The measures made by this test are as follows:

Measurement	Description	Measurement Unit	Interpretation
Read_offload	Indicates the percentage of read requests served 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.
Write_offload	Indicates the percentage of write requests serverd by this server during the last measurement period.	Percent
Total_offload	Indicates the total percentage of read and write requests served by this server during the last measurement period.	Percent	The value of this measure is the average of the Read_offload and the Write_offload measures.
Cum_read_offl	Indicates the percentage of read requests served by this server since the start of the server.	Percent	A high value is desired for these measures.
Cum_write_offl	Indicates the percentage of write requests served by this server since the start of the server.	Percent	A high value is desired for these measures.
Cum_total_offl	Indicates the percentage of total read and write requests served by this server since the start of the server.	Percent	The value of this measure is the average of the Cum_read_offl and the Cum_write_offl measures.