On Wed, Aug 20, 2008 at 06:01:29PM -0700, James G. Sack (jim) wrote:

I think this has been asked elsewhere, and probably more than once, but
I wonder why drives cannot save the cache during the power-down ramp.

For systems where reliability is more important in the cost tradeoff,
a controller with battery-backed RAM and a separate power supply for
the controller and drives can at least deal with all cases of merely
external power being removed.  A properly implemented UPS is probably
the best way to get there with a conventional computer.

David


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