Normal disk graph

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High throughput allows you to read large files fairly quickly, which helps with, well, large files or sequentially arranged files. You need a storage device (HDD or SSD) that has both: high throughput and low random access time. What properties in a hard drive should I buy to speed this up? (The disk transfer rate doesn't seem to relate)

If you hit 99%, you are actually bottle-necked by the read/write performance of your HDD. The higher the time/percentage, the more you utilize the HDD. The graph is literally taken a measure of time the HDD (in your case) is reading or writing data.ĭisk active time is the time the HDD is working.

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