On Thu, Aug 02, 2001 at 11:01:24AM -0500, Oliver Xymoron wrote:
> There are severally levels of journalling, by the way, from metadata only
> to full data journalling. The latter (which ext3 optionally supports)
> ensures that the disk is entirely consistent each time the journal is
> committed. While not perfect, it's pretty darn good. Combine with an
> external non-volatile RAM for a journalling device and you've got pretty
> damn high reliability.
Well... (and I'll let this drop after this, unless someone else wants
to keep it going), "each time the journal is committed".
But we're *still* merely relocating the write-failure sensitivity.
Granted, a write failure during the journal write won't horque the
filesystem, but the *data* still didn't make it onto the disk, right?
And even solid-state disks can fail...
Cheers,
-- jra
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