jerrymc at clunix.cl.msu.edu
Mon Feb 23 15:46:16 PST 2004
> We're currently doing a back up of a FreeBSD 4.9 (2) server by plugging a
> USB external drive in and then doing
> cp /dev/ad0 /dev/da0
> This takes about 30 hours, (USB 1).
> Is this the best way to do it, or can someone suggest a better way. We'd
> rather not have the server offline while we do it.
I would suggest using dump (and restore if you need something recovered)
if you can because cp may not preserve everything appropriately.
or dump | restore if you are trying to build the file system on to
the other disk.
I wonder also about your choice of devices, but I don't know how you
created them or mounted them. Actually, I would use their mount names
rather than devices anyway. Or am I missing something here?
Using dump[/restore] won't speed anything up, but it would make sure
it is usable later.
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