increasing dd disk to disk transfer rate
Matthew D. Fuller
fullermd at over-yonder.net
Thu Jan 12 04:59:13 PST 2006
On Thu, Jan 12, 2006 at 10:48:38AM +0100 I heard the voice of
Christoph Kukulies, and lo! it spake thus:
>
> dd if=/dev/ad2 of=/dev/ad3 conv=noerror
Give it a bigger blocksize (say, bs=1m or so) and it'll go a **LOT**
faster.
> My motherboard is an ASUS P4S8X with an on board promise controller
> (currently not in use). System disk is on IDE1 and the two 80GB
> disks are master/slave on IDE2 bus.
You'll get much better results by having each drive be master on its
own bus.
--
Matthew Fuller (MF4839) | fullermd at over-yonder.net
Systems/Network Administrator | http://www.over-yonder.net/~fullermd/
On the Internet, nobody can hear you scream.
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