On Thu, Jul 06, 2006 at 01:43:40PM +0200, Pieter Palmers wrote: > Modern harddisks use a lot of write caching on the controller to achieve > decent performance. So when power goes down when there is data in the > write cache, it is lost. The file system however 'thinks' that data has > been written correctly. This hence results in file system corruption. FS corruption is no fun (I once spent two days recovering data after bad RAM corrupted an ext2 fs... I ended up with every file I had in lost+found). But the particular failure I mentioned was drive hardware, no doubt about it. Lots of low-level IDE errors in /var/log/messages. Couldn't fsck it, couldn't get any raw data out of it with "dd if=/dev/hdb", nothing. I didn't have any warning, either... no funny noises, no problems or errors the last time I mounted it. *shrug* +1 on the UPS idea, I've had one for years. -PW -- Paul Winkler http://www.slinkp.com
