Finding optimal ddrescue command line options where Accuracy > Speed

Posted by gav on Server Fault See other posts from Server Fault or by gav
Published on 2010-06-06T13:29:26Z Indexed on 2010/06/06 13:32 UTC
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data-recovery

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ddrescue

I'm read up a bit about this tool and obviously looked at the man pages. The trouble is that ddrescue takes so long I need to get the command right first time. I wasn't sure how to improve on the vanilla;

$ sudo ./ddrescue -v /dev/disk0s5 MyVolImage.dmg MyVolRescue.log
$ sudo ./ddrescue -v MyVolImage.dmg /dev/disk1s3 MyVolRestore.log

From HSF+ to HSF+ drives
Source (Broken) HDD is connected via USB 2.0
Dest HDD is inside MacBook
I would choose accuracy over speed

There seem to be a lot of options but I'm not sure how they impact quality and speed of recovery.

Thanks,

Gav

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