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Viewing the Disk Usage |
To view the disk usage in Unix, simply type iostat -k from a command prompt. Iostat allows you to monitor disk activities and adding the -k flag displays the output in KB.
After an hour of running Iguana, the disk usage stats are as follows:
Using iostat
| Iostat Parameter | Description | Value | Suggested Average Threshold |
|---|---|---|---|
| %idle | Displays the percentage of time that the CPU or CPUs were idle and the system did not have an outstanding disk I/O request. | 95.02% | > 20% - if this value is below 20%, the system might be queuing up disk I/Os and response time may suffer. |
To calculate overall disk usage after running Iguana for an hour:
KB_wrtn/s x 60 seconds x 60 minutes = Total KB/hour |
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| If you are running other applications on the same machine, the KB_wrtn/s stat will be inaccurate since iostat calculates the sum in KB of all the applications writing to the disk. | ||
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