Backup with dd?

[Eric F Crist]

Hello all,

I've decided to try doing a complete system backup, attempting a 
bit-for-bit copy.  A friend told me to try the following:

# dd if=/dev/ad4 of=/dev/ad6

Both drives are identical SATA150.  Is this the best way?  I'm hope to 
be able to do a daily/weekly backup this way, and if my primary drive 
fails, switch the cables and just reboot.

TIA

_______________________________________________________
Eric F Crist                  "I am so smart, S.M.R.T!"
Secure Computing Networks              -Homer J Simpson
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