| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Read_requests |
Indicates the rate at which read requests were received by this host port.
|
Number |
 
|
| Write_requests |
Indicates the rate at which write requests were received by this host port. |
Number |
 
|
| Data_reads |
Indicates the rate at which data is read by this host port. |
MB/Sec |
 
|
| Data_writes |
Indicates the rate at which data is written to this host port. |
MB/Sec |
 
|
| Read_latency |
Indicates the time taken by the controller to service the read requests to this host port. |
Ms |
Ideally, this value should be low. An unusually high value across hosts could indicate the existence of a bottleneck in I/O processing on the controller.
|
| Write_latency |
Indicates the time taken by the controller to service the write requests to this host port. |
Ms |
| Avg_queue_size |
Indicates the average number of requests waiting in the queue of this host port. |
Number |
Ideally, this value should be low. In times of heavy load, you may want to compare the value of this measure across host ports to figure out which port is the busiest.
|