Previously Charliec said:
Is there a way (method) to test the actual speed of an external USB2.0
harddrive. I just installed a Western Digital external USB2.0
harddrive and, at times, it appears to be a bit slow. Are there tests
that can be run to determine the actual speed? I have it connected to
a USB2 port and am running WinXP SP3.
Thanks
Charliec
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Charliec
There is no "s[eed" of a HDD. There are different parameters,
like access time, thoughput, latency, etc.. Use any standard
HDD benchmark tool to determine them. For a very rough
thorighput estimatin you can also copy a large file to or
from the drive. BTW, throughputs around 25MB/s are quite
normal for USB2.0 HDDs.
Arno
Arno/Victor,
I ran HD Tune as Victor suggested and the results are below:
HD Tune: WD 3200AVJ External Benchmark
Transfer Rate Minimum : 30.1 MB/sec
Transfer Rate Maximum : 30.8 MB/sec
Transfer Rate Average : 30.6 MB/sec
Access Time : 13.2 ms
Burst Rate : 24.9 MB/sec
CPU Usage : 19.6%
HD Tune: ST3120026AS Benchmark
Transfer Rate Minimum : 29.0 MB/sec
Transfer Rate Maximum : 55.9 MB/sec
Transfer Rate Average : 44.0 MB/sec
Access Time : 12.7 ms
Burst Rate : 68.8 MB/sec
CPU Usage : 4.2%
The transfer rate for the internal drive (2nd one) got progressively
worst as the test went on, finishing at about 29MB/sec, averaging out
to about 44 MB/sec - is that normal for an internal harddrive - seemed
a bit slow to me?
The external harddrive's speed appear to meet your expectations.
Any thoughts on the internal harddrive?
Thanks
Charlie
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Charliec