On Tue, Jan 20, 2004 at 08:47:40AM -0800, Johannes Graumann wrote: > "Don't use a journaling file system on top of file backed loop device, > unless underlying file system is journaled and guarantees data=ordered > or data=journal."
AFAIK, This reads as: ``Don't think journalling buys you anything, unless the lower layers actually write the journalling data to the disk.'' If you have a journalling fs (A) over a non-journalled fs (B), on a crash you'll get A thinking it's journal/whatever is reliable, while B crashed without writing A's journal to the disk. The result will likely be the A more corrupted than it would be without the journalling turned on. HTH, Jan. -- Jan Minar "Please don't CC me, I'm subscribed." x 9
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