[ltp] cloning 14G drives

[Mark Kennedy]

Rob Mayoff wrote:
> 
> I just used dd to copy my whole 14 GB drive to /dev/null:
> 
> # dd if=/dev/hda of=/dev/null bs=1024k
> 13481+1 records in
> 13481+1 records out
> 
> I'm using the Mandrake 6.0 kernel (2.2.9 + various patches).  It's quite
> possible that one of the patches makes this work.
> 
> | that's what i thought originally.  but empirically, it isn't so.
> | i tried 'dd' and a small perl program (based on sysread).  both
> | stopped at approx. the same barrier: 7,560M.
> 
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i did the same thing but with a block size of 1k, not 1m (1024k) and
it did half the disk.  i'll try 1m tonight.

/mark

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