backup strategy (Re: dump | restore fails)

Andrew Snow andrew at
Thu Mar 26 19:25:27 PDT 2009

Mikhail T. wrote:
 > To qualify for your (and your kind's) recognition then, a person
 > needs to have at least as much extra storage capacity as the
 > largest filesystem they are backing up. They also need
 > non-trivial scripting abilities, because the OS doesn't
 > include anything like what you are describing

Mikhail, users would be well advised to check their backups using this 
option, without having to have the space to restore:

-N      Do the extraction normally, but do not actually write any 
changes to disk.  This can be used to check the integrity of dump media
or other test purposes.

RESTORE(8)              FreeBSD System Manager's Manual

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