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LINUX LAB<br />
ratio we found for different drives<br />
we measured.<br />
The ETA is an approximate<br />
Estimated Time of Arrival (finish)<br />
WHDD displays at the beginning of<br />
the test. For the most part, the<br />
ETA, unlike many time indicators, is<br />
fairly accurate – to within a few<br />
minutes. But, like other time<br />
indicators, it does suffer time<br />
creep when the test comes across<br />
several slowly read sectors. We<br />
tested several drives and found<br />
the average time for an 80GB hard<br />
drive to be about 22 minutes.<br />
The Speed of the drive is a<br />
fluctuating number. In general, we<br />
found the larger the drive the<br />
higher the speed. This makes a lot<br />
of sense since newer drives should<br />
have faster technology to read the<br />
surface of larger sized drives. We<br />
tested 1 5 drives of different sizes<br />
and makes, and found (with the<br />
odd exception) the trend of faster<br />
speed seems to correlate with size.<br />
Drive content didn’t seem to affect<br />
the numbers as much as the<br />
number of slowly read sectors.<br />
During the read test, WHDD<br />
charts the number of blocks read<br />
at each of the following speeds:
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