RE: [cobalt-users] hard drive 61 revisited

[Gerald Waugh <gwaugh@xxxxxxxxxxxxxxxxxxxxxxx>]

On Thu, 5 Sep 2002 jale@xxxxxxxxxx wrote:

>  From Gerald's post:
>  >Just use dd, put a second drive in the RaQ and dd it once in a while,
>  >or dd it once and then use rsync to keep it up to date.
>
> Does this take care of all mkfs issues, or do I have to "make" a drive
> first? Is dd like a "real" mirroring system where it will take a drive out
> of the box and just do it?
>

Yes, dd does a bit by bit copy, anything on one disk will be copied to
the other, formats and all

dd if=/dev/hda of=/dev/hdc
Copies everything from a to b (this will take a while)
"if" is in-file and "of" is out-file

> Thanks. This is easier than taking out the drive, making the mirror, and
> putting it back.
> On the subject of the small power supply, on a RAQ3i, would it be prudent
> to leave this spare drive unplugged unless it is necessary? Can the power
> supply handle 2 drives to even do the setup?

It can handle 2 drives

Gerald
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