On Thu, May 12, 2011 at 4:15 PM, Ole Tange <[email protected]> wrote:

> On Thu, May 12, 2011 at 4:10 PM, Matt Oates (Home) <[email protected]>
> wrote:
> > On 12 May 2011 14:57, guerrier <[email protected]> wrote:
> >> On Thu, May 12, 2011 at 9:48 AM, Matt Oates (Home) <[email protected]>
> wrote:
> >>> Is parallel a great idea here?
> >>
> >> That's my real question.  I have a failing hdd, from which i would
> >> like to move as much data as possible as fast possible.
> >
> > If it was me I'd chuck in a blank USB disk and use the 'dd' command to
> > just verbatim copy the partition/disk over, this is about as quick as
> > you are going to get.
>
> Use:
>  dd conv=noerror if=/dev/disk1 of=/dev/disk2
>
> or look at dd_rescue and ddrescue. These programs are made for your
> task. And after that: fsck of the copy.
>
> GNU Parallel would only make matters worse in this case as it will
> make the disk arms thrash (which is likely to kill a sick disk).
>
>
> /Ole
>

Thanks.  Y'all been very helpful.
guerrier

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