cyclic redundancy check

[Doug_14]

Hi Guys,

I have a drive that I am replacing and I can see which files are effected through a robocopy log file that reads:

Data error (cyclic redundancy check).

Waiting 30 seconds... Retrying...

I've got the new hard drive in the system and the failing drive on a USB HD enclosure. The files that are failing are part of the 600,000 plus files I am trying to transfer with Robocopy.

My question, how should I proceed as my robocopy is failing on these files and then quits. I'd like to know which files it doesn't copy. I imagine there is a switch for robocopy, but didn't know if it was better to "mark" the files as bad or something and then re-run robocopy.

Any help is appreciated.

Thank you.

 

[USAFRet]

Cyclic Redundancy Check indicates a failing drive.
And it can't tell you which files it can't copy, because it can't read them, because the drive is failing.

And the more you mess with it, the closer it is to complete fail.

 

[Doug_14]

Yep, understand it's failing. That's why I am trying to get the files off.

Just looking for the best method of getting the remaining files off. I've copied a couple hundred thousand thus far.

 

[Doug_14]

Found these robocopy switches. Hopefully this will grab what it can....

/R:0 = 0 retries for read/write failures
/W:0 = 0 seconds between retries

Thank you.

 

[Doug_14]

Just a follow up - when I ran robocopy last night, I was lucky and it managed to scoop 100% of the files.