[H-GEN] Hardware Upgrade

Robert Brockway robert at timetraveller.org
Mon Jan 6 20:39:23 EST 2003


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On Tue, 7 Jan 2003, Bradley Marshall wrote:

> ``So anybody who depends on "dump" getting backups right is already playing
> russian rulette with their backups.  It's not at all guaranteed to get the
> right results - you may end up having stale data in the buffer cache that
> ends up being "backed up".

I have seen this before but I guess I don't understand _why_ it might get
stale data from the buffer cache.  Surely if tar & cpio can guarantee
correct information dump should be able to as well (it looks at the
filesystem at a lower level than other tools anyway).

Still, getting stale data and data corruption are two entirely different
things.  Even a journaling filesystem won't always guarantee recovery of
the latest data after a crash, only consistent data.  Readers may wish to
see the "data" option in mount(8) for further info on this.

Cheers,
	-Rob

-- Robert Brockway B.Sc. email: robert at timetraveller.org  ICQ: 104781119
   Linux counter project ID #16440 (http://counter.li.org)
   "The earth is but one country and mankind its citizens" -Baha'u'llah


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