| Measurement |
Description |
Measurement
Unit |
Interpretation |
| IO_Rate |
Indicates the number of I/O operations performed on this port per second.
|
IOPS |
If this measure reports a high value or if the value of the measure increases consistently, it is indicative of unusually high I/O activity on this port. Comparing the value of this measure across ports can accurately indicate which port is currently experiencing heavy workloads. Observing the variations in this measure over a period of time will enable you to figure out bottlenecks in load balancing.
|
| Read_Rate |
Indicates the number of read operations performed on this port per second.
|
IOPS |
|
| Write_Rate |
Indicates the number of write commands issued on this port per second.
|
IOPS |
|
| Read_Hit |
Indicates the percentage of read requests that were served from the cache.
|
% |
Ideally, the value of this measure should be high. A low value is a cause for concern, as it indicates that a majority of the read requests have been serviced by direct disk accesses, which in turn would increase the processing overheads.
|
| Write_Hit |
Indicates the percentage of write requests that were served from the cache.
|
% |
Ideally, the value of this measure should be high. A low value is a cause for concern, as it indicates that a majority of the write requests have been serviced by direct disk accesses, which in turn would increase the processing overheads.
|
| Trans_Rate |
Indicates the transfer size of read/write commands per second.
|
KB/sec |
|
| Read_Trans_Rate |
Indicates the transfer size of read commands per second.
|
KB/sec |
|
| Write_Trans_Rate |
Indicates the transfer size of write commands per second.
|
KB/sec |
|