Kamaraju S Kusumanchi wrote:
Actually, this is where the problem originated. We looked at the part
numbers of a hard drive in a cluster and ordered the parts online. But to
our dismay, we found that they have different rpm even though their part
numbers are same. I don't think this is a reliable way of finding out the
rpm.
We also tried "hdparm -t /dev/sdb" to find out about the drive speeds. But
that gives the end result and not the actual hard drive rpm.
Try comparing the read/write speeds of the drive with those of a known
drive. It might be give you a reasonable guess of the RPM.
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