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Jim Said....
"Write cache has a massive impact on I/O performance. The more write
cache the better. Ask anyone who has lost the batteries on the raid
card what happens when write cache goes away. Ugly things happen."

This got me thinking about RAID Card design....

Why the heck isn't the cache batter a backup, not a primary power source?
If the cache batter goes shouldn't the controller still have enough
electrical input to keep its cache alive? This just seems like poor
design, and a major oversight. Maybe I don't understand hardware design
(that is probably the case), but I'm failing to see what the purpose is of
the battery vs straight electrical input from the system? I would think
you'd want a cache battery in the case of a hardware failure so you don't
lose data, but I would think that it should be a backup source....

Thanks
Bryce Martin
Programmer/Analyst I
570-546-4777
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