On Tue, 16 Jul 2002, Christoph Hellwig wrote:
> On Tue, Jul 16, 2002 at 02:53:01PM +0200, Matthias Andree wrote:
> > Not if some day somebody implements file system level snapshots for
> > Linux. Until then, better have garbled file contents constrained to a
> > file than random data as on-disk layout changes with hefty directory
> > updates.
>
> or the blockdevice-level snapshots already implemented in Linux..
That would require three atomic steps:
1. mount read-only, flushing all pending updates
2. take snapshot
3. mount read-write
and then backup the snapshot. A snapshots of a live file system won't
do, it can be as inconsistent as it desires -- if your corrupt target is
moving or not, dumping it is not of much use.
-- Matthias Andree - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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