* david@lang.hm <david@lang.hm> [100223 15:05]:
> However, one thing that you do not get protection against with software
> raid is the potential for the writes to hit some drives but not others.
> If this happens the software raid cannot know what the correct contents
> of the raid stripe are, and so you could loose everything in that stripe
> (including contents of other files that are not being modified that
> happened to be in the wrong place on the array)
That's for stripe-based raid. Mirror sets like raid-1 should give you
either the old data, or the new data, both acceptable responses since
the fsync/barreir hasn't "completed".
Or have I missed another subtle interaction?
a.
--
Aidan Van Dyk Create like a god,
aidan@highrise.ca command like a king,
http://www.highrise.ca/ work like a slave.