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Ext3 and write caching by drives are the data killers...

Ext3 and write caching by drives are the data killers...

Posted Sep 10, 2009 21:05 UTC (Thu) by Cato (subscriber, #7643)
In reply to: Ext3 and write caching by drives are the data killers... by Cato
Parent article: Ext3 and RAID: silent data killers?

Actually the comment about a single incorrect block in a journal 'spraying garbage' over the disk is here: http://lwn.net/Articles/284313/


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Ext3 and write caching by drives are the data killers...

Posted Sep 11, 2009 16:33 UTC (Fri) by nix (subscriber, #2304) [Link]

Note that you won't get a whole blockfull of garbage: ext3 will generally
notice that 'hey, this doesn't look like a journal' once the record that
spanned the block boundary is complete. But that's a bit late...

(this is all supposition from postmortems of shagged systems. Thankfully
we no longer use hardware prone to this!)


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