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Measures reported by HiVSPGxPortTest
This test provides information on I/O rates for all the host bus adapters connected to each Storage unit Port.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| IOPS |
Indicates the rate at which read-write operations are performed on this port. |
IOPS |
A high value of this measure is generally indicative of high I/O activity on a port. Comparing the value of this measure across ports will enable you to isolate busy ports, and detect load imbalances.
To uniformly balance load across parity groups, you should consider installing additional HDDs, or you can use volume migration to migrate volumes from high-usage parity groups to low-usage parity groups. |
| KBPS |
Indicates the rate at which data is transferred over this port. |
KB/Sec |
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| Response_Time |
Indicates the responsiveness of this port to read-write requests. |
Microseconds |
Ideally, the value of this measure should be low. If the value of this measure is very high or is increasing steadily, then, you might want to check whether the I/O operations rate measure too reports a high value. If so, it is a clear indication that since the I/O activity is high, the hosts are taking a longer time to access the disks, thereby increasing the response time. |
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