Test case for hard disk reliability

Do you have a question? Post it now! No Registration Necessary

Translate This Thread From English to

Threaded View
Hi all,
We have got a consumer electronics product and got a hard disk to save
some of the customers preferred content.The hard disk stores it and
could be retireved at any time according to customer's will.We would
like to test the reliability of the data stored in the hard disk.In
cases like power failure while writing to the disk,we would like to
gauge how much data gets corrupted and also determine the proper
recovery strategy if any.
One idea which stuck me would be have the debugger run with the code
writing to hard disk and remove the power .But I am not really sure if
this could be close to real usage case since debugging involves
I also came to know that some of the hard disks used to buffer the
data written and later store it physically.How to test such cases?

I searched around net to find some utilities but none of them seem to
gauge the data reliability.
I would appreciate if experts here could share some of their thoughts
on how we could test this.

Looking farward for your replies and advanced thanks,


Re: Test case for hard disk reliability
Quoted text here. Click to load it

Ask the HD manufacturers. Really. This is a big issue for PVRs and
other video devices, where the drives are on 24x7 and often thrashed
within an inch of their lives while recording two programs and
playing another. The manufacturers of those boxes have been closely
involved in extensive and active quality programs with the HD makers.
You should be able to get very well-substantiated and reliable
information on the drive's reliability - worth a thousand times the
value of any testing you can do yourselves.

If you're not satisfied, get server-grade drives, their MTBF is
about 3 orders of magnitude better than consumer devices.

Site Timeline