On Mon, 18 May 2009, Paul Wootton wrote: PW> > > I am currently in the process of moving all my data around, going from a PW> > > single zfs drive (ex-mirror) to a zfs raidz. PW> > > I have used cpio to copy the data to the new pool, but a du shows a big PW> > > difference in the results. PW> > > PW> > > Does anyone have any ideas, or does a "du -h ." not do what I think it PW> > > should? PW> > > PW> > it is a known bug (at least for the solaris folks) that du does not PW> > display disk usage correctly on raidz. PW> > PW> > But of course different compression algorithms come into play as well. PW> > PW> In this instance, the du from the raidz pool is actually correct. PW> A zfs list shows less space (incorrect) on the single drive compared to the PW> raidz. PW> Doing a tar on both directories gives 2 1.2G files so the data is actually PW> present on both packs (plus I used CPIO to copy the data from the single to PW> the raidz) PW> PW> Is it possible for data corruption on the single drive to not show the extra PW> space as being used? Ehmm, possibly stupid question: sparse files? -- Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck_at_FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck_at_rinet.ru *** ------------------------------------------------------------------------Received on Mon May 18 2009 - 11:00:21 UTC
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