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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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What does Reverse Clone do that normal clone mode can't?

March 13th, 2013, 12:48

I've always been intrigued by the concept of reverse cloning.

If for example you have a drive with a lot of bad sectors , what can it acheive that normal cloning cannot?

when it clones in reverse - it is still going to hit bad sectors right?

Re: What does Reverse Clone do that normal clone mode can't?

March 13th, 2013, 13:38

Hi again!

So on a failing drive the read cache gets all messed up - preventing a proper clone?

Re: What does Reverse Clone do that normal clone mode can't?

March 13th, 2013, 15:39

ok thanks for that explanation

But, if you know that BB (as per your illustration aboce) has an approx LBA of 60000000 and finishes at 80000000

You can just use your cloning utility or DR program to concentrate on
0 to 60000000
THEN
80000000 to End

without any need for reverse cloning?

Re: What does Reverse Clone do that normal clone mode can't?

March 13th, 2013, 15:46

ok thanks Spildit

Re: What does Reverse Clone do that normal clone mode can't?

March 14th, 2013, 5:06

Read Look Ahead are not possible in reverse cloning.
There is varying surface densities between start and end of disk.
Start of disk is accessed more frequently than end and more chance to develop read problems.
Repeated attempts to read damaged sectors (at start) can further damage your read heads.
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