Messages in this thread | | | Subject | Re: Amanda VFAT Incremental Backups Broken in linux-2.2.1[12] | Date | Fri, 03 Sep 1999 13:29:08 +0100 | From | David Woodhouse <> |
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rd103983@home-box.demon.co.uk said: > There is a good feature of VFAT (I _DONT_ believe it !!! a GOOD > feature in VFAT!!!!!!!) in the archive bit. This would provide > reliable incrememtal backups ... but it can't be mapped onto Unix > semantics.
We do, however, correctly set the archive bit whenever we modify or create a file on a FAT filesystem, so it should be usable for its intended purpose.
You just need to make sure your backup program uses the ATTR_ARCH flags to decide whether to back up each file, and resets the flag after^Wbefore doing the backup.
This doesn't help you much if you're backing up over NFS, but if you're exporting FAT over NFS, you're probably screwed anyway.
---- ---- ---- David Woodhouse David.Woodhouse@mvhi.com Office: (+44) 1223 810302 Project Leader, Process Information Systems Mobile: (+44) 976 658355 Axiom (Cambridge) Ltd., Swaffham Bulbeck, Cambridge, CB5 0NA, UK. finger dwmw2@ferret.lmh.ox.ac.uk for PGP key.
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