whugster... where is this system event log?
I also mailed Hitachi about this issue and this is what they told me:
Dear Sir / Madam,
Thank you for contacting our Hitachi Technical Support Center regarding
your enquiry relating to the brief sound that emanates from our drives.
We suspect that the occasional 'sound' you are hearing is the Idle Time
Function that has been introduced on our latest drive designs as a
reliability enhancement. You need not be alarmed by this,
This "sound" is due to a brief but deliberate head arm movement every so
often. This has been added to maximise the reliability of our disk drive
products. This function is only invoked if an extended period of inactivity
is detected, so has no impact on active performance. [It is bad to leave
the heads hovering over the same data track unnecessarily].
Even after a period of time of activity the Idle Time Function can be
implemented as the Idle Time Function is a cumulative function.
The level of sound emitted may vary from one drive to another and as such
this should not give rise to concern or be considered an impending failure.
Please be assured that this drive design is one of the quietest drives, at
this data density, in the industry.
We trust this information will be of use and help you to resolve your
Hitachi Technical Support Center
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