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ep:labs:03:contents:tasks:ex1 [2020/08/03 16:39] cristian.marin0805 [04. [20p] Monitor I/O with vmstat and iostat] |
ep:labs:03:contents:tasks:ex1 [2021/10/26 10:46] (current) radu.mantu [01. [10p] Rotational delay - IOPS calculations] |
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| </note> | </note> | ||
| To calculate the **IOPS range** divide 1 by the sum of the average latency in ms and the average seek time in ms. The formula is: | To calculate the **IOPS range** divide 1 by the sum of the average latency in ms and the average seek time in ms. The formula is: | ||
| - | <code>average IOPS = (1 / (average latency in ms + average seek time in ms). | + | <code>average IOPS = 1 / (average latency in ms + average seek time in ms). |
| </code> | </code> | ||
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| === [10p] Task A - Calculate rotational delay === | === [10p] Task A - Calculate rotational delay === | ||
| - | Calculate the rotational delay (RD) for a 5400 RPM drive. | + | Add in your archive the operations and the result you obtained. (Screenshot, picture of calculations made by hand on paper) |
| + | |||
| + | Calculate the Rotational Delay, and then the IOPS for a __5400 RPM drive__. | ||
| <solution -hidden> | <solution -hidden> | ||
