Measures reported by GFireMDiskTest
This test monitors the rate at which data is read from and written to each disk and the time taken to flush the data into each disk. Using this test, administrators can identify the error-prone disks that may fail any time and be alerted to potential disk failures. In addition, this test points administrators to the disk from which the maximum amount of data is utilized.
Outputs of the test : One set of results for each disk of the target GemFire server being monitored.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Flush_average_latency |
Indicates the average time taken to flush the data from this disk. |
Milliseconds |
A high value for this measure is a cause of concern as this may indicate slowness of the disk. |
| Reads_rate |
Indicates the rate at which data was read from this disk. |
Reads/sec |
Comparing the value of these measures across the disks helps you in identifying the disk that is busy in terms of disk reads and disk writes. |
| Writes_rate |
Indicates the rate at which data was written to this disk. |
Writes/sec |
| Total_disk_usage |
Indicates the total amount of data utilized from this disk. |
MB |
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