[plug] "dd" question

Ken Hunter ken at aspiringtech.net
Fri Sep 27 08:15:52 WST 2002


dd if=/dev/hda  of=/dev/hdb  bs=4096  is what we use quite alot.... and 
have had good luck with it.

36gb drives clone in about 25 minutes...


At 9/26/2002 18:00, you wrote:
>I want to "clone" my hard drive to a spare hard drive, of equal size.
>This was cheaper than going out and paying for a tape drive that could
>handle 40GB disks.
>
>The dd command man page says there are different block sizes.  Which block
>size (bs) quantity is right for Linux.
>I was going to use the following command " dd if=/dev/had of=/dev/hdb bs=512
>".
>Would that be correct ?
>
>I thought about RAID (software raid) using a mirror (raid 1) configuration,
>but I have no experience with RAID.
>I figured I would just run a nightly cron job with the dd command.
>
>Phil


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