Messages in this thread | | | Date | Mon, 15 Dec 2008 21:08:05 +0100 | From | Folkert van Heusden <> | Subject | Re: writing file to disk: not as easy as it looks |
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> > There are certainly things you can do. Put your fileservers's on > > UPS's. Use RAID. Make backups. Do all three. :-) > > Okay, so we pretty much know that ext3 journalling helps in "user hit > the reset button" case. (And we are pretty sure ext2/ext3 works in > "clean unmount" case). Otherwise > > *) kernel bug -> journalling does not help. > > *) sudden powerfail -> journalling helps works on SGI high-end > hardware. It may or may not help on PC-class hardware. > > We already do periodic checks, even on ext3. Maybe we should do fsck > more often if we see evidence of unclean shutdowns (because we know > PC hardware is crap...).
What we might need is on-line fsck. E.g. fsck while the fs is still mounted.
Might be tricky to implement.
Folkert van Heusden
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