[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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