On Fri, 11 Aug 2006, Pawel Jakub Dawidek wrote: > 2. Confirm that partition with your file system is _not_ 4 sectors > aligned. If it is not 4 sectors aligned, it is safe for gjournal to > use its last sector for metadata. You can verify this by running: > > test `diskinfo /dev/<data_partition> | awk '{print $4}' | xargs -J X echo X % 4 | bc` -eq 0 && echo ok || echo not ok > > Then you need to run those commands: > > # gjournal label /dev/<data_partition> /dev/<journal_partition> > # tunefs -n disable -J enable /dev/<data_partition>.journal Sounds like a "gjournal testalignment /dev/partition" would be a very useful thing. Or even just doing it as part of gjournal label? Robert N M Watson Computer Laboratory University of CambridgeReceived on Fri Aug 11 2006 - 11:33:45 UTC
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