Pure Arrays Test

Using this test, administrators can figure out how well the FlashArray processes the I/O requests and detect delay encountered during processing the I/O requests. In addition, this test also reports the data utilization for performing read/write operations on the FlashArray. Using the metrics reported by this test, administrators can take remedial measures to keep a check on the irregularities, if any.

Target of the test : Pure Storage FlashArray

Agent deploying the test : A remote agent

Outputs of the test : One set of results for the target FlashArray 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 this test is to be configured.
Port	The port at which the device listens. By default, this will be NULL.
API Token	The eG agent collects the required metrics from the Pure Storage Flash Array by executing API commands using Pure Storage REST API on the FlashArray and pulls out critical metrics. In order to collect metrics, the eG agent should be provided with a valid API token. To know how to determine the API token, refer to Pre-requisites for Monitoring the Pure Storage FlashArray. Specify the determined API token in the API Token text box.

Measurements made by the test
Measurement	Description	Measurement Unit	Interpretation
Read bandwidth	Indicates the amount of data utilized for performing read operations on this FlashArray per second.	MB/Sec	A consistent decrease in the value of these measures indicates an I/O processing bottleneck.
Write bandwidth	Indicates the amount of data utilized for performing write operations on this FlashArray per second.	MB/Sec
Average bandwidth	Indicates the average amount of data utilized for performing I/O operations on this FlashArray per second.	MB/Sec
Read IOPS	Indicates the number of read operations performed on this FlashArray per second.	IOPS	A consistent decrease in the value of these measures indicates an I/O processing bottleneck.
Write IOPS	Indicates the number of write operations performed on this FlashArray per second.	IOPS
Average IOPS	Indicates the average number of I/O operations performed on this FlashArray per second.	IOPS
Read latency	Indicates the time taken to process the read operations during the last measurement period.	Milliseconds	Very high values for these measures are indicative of the existence of road-blocks to rapid reading/writing by the FlashArray.
Write latency	Indicates the time taken to process the write operations during the last measurement period.	Milliseconds
Average latency	Indicates the average time taken to process the I/O operations during the last measurement period.	Milliseconds	Ideally, the value of this measure should be very low. A high value or a steady increase in this value could indicate an I/O processing bottleneck on the array. In such a case, compare the value of the Read latency and Write latency measures to figure out where the slowness is worst - when processing read requests? or write requests?
Queue depth	Indicates the number of IO requests in the queue.	Number	A consistent increase in this value indicates a potential processing bottleneck with the FlashArray.