I'm not comfortable with software raid mainly becuase I would know what to
do if a member of the md cluster failed.  So I want to ghost a working drive
to a secondary drive.

Say I have two identical drives: /dev/hda and /dev/hdc.

Periodically I want to completely ghost hda to hdc without having to unmount
hda or go into single user mode, etc.  If hda ever dies, then I just
re-jumper hdc and away I go.

I've tried:

# dd if=/dev/hda of=/dev/hdc

Although I'm sure it ghosted the drive, it also prevented me from rebooting
the computer normally.  Something about grub getting confused about multiple
drives having the same devlabel entries.  Also it took forever.

Is there a tool that will replicate the partitions, copy from kernels and
boot sectors. then copy the files over to a spare drive with grub getting
confused?

Thanks,
-eric wood


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