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Rick Samuelson
Username: prsgroup

Registered: N/A
Posted on Saturday, Aug 9, 2008 - 3:23:   

I used to be able to write to sectors that were unreadable, but now I no longer can.

In many cases, if there is an unreadable sector has not been physically damaged, it can be restored to a usable state by writing data to it. In previous versions, I was able to do this, but now, in recent versions, when I attempt to this, it fails with a read error and never performs the write. I am able to use other tools to write to the same sector.

Is there some other way to do this?

Thank you,

Rick
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Stefan Fleischmann
Username: admin

Registered: 1-2001
Posted on Saturday, Aug 9, 2008 - 3:34:   

I have moved your posting to the correct section of the forum.

Please check whether you are using the same disk access method as before and whether disabling caching helps (all in General Options).
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Greg Freemyer
Username: freemyer

Registered: N/A
Posted on Tuesday, Aug 12, 2008 - 0:21:   

Stefan, for the last 6 months or so, hdparm for linux has had the ability to artificially create bad sectors. Might be a useful tool to create test scenarios for this problem.

Quoting the hdparm author:

"Note that you can create/remove *real* bad sectors on most drives by using "hdparm --make-bad-sector" and "hdparm --repair-sector".

It works by working directly with the internal sector checksums.
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Rick Samuelson
Username: prsgroup

Registered: N/A
Posted on Friday, Aug 15, 2008 - 4:42:   

Thanks Stefan/Greg.

Greg, do you know if there is a working hdparm port to Windows?

Rick

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