Ext3 and write caching by drives are the data killers...
Posted Sep 1, 2009 16:43 UTC (Tue) by ncm
In reply to: Ext3 and write caching by drives are the data killers...
Parent article: Ext3 and RAID: silent data killers?
What's wrong with providing battery backup for your drives? If they have power for a little while after the last write request arrives, then write caching, re-ordering writes, and lying about what's already on the disk don't matter. You still need to do backups, of course, but you'll need to use them less often because your file system will be that much less likely to have been corrupted.
I don't buy that your experience suggests there's anything wrong with ext3, if you didn't protect against power drops. The same could happen with any file system. The more efficient the file system is, the more likely is corruption in that case -- although some inefficient file systems seem especially corruptible.
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