From: Lester C. <le...@ls...> - 2011-10-26 10:28:48
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Paul Reeves wrote: > Everything really depends on the manufactures claims that the capacitors can > flush the cache successfully. Can we trust them? It's not just the drives capacity that matters here. Most of the machines I've checked will continue to run for several seconds after mains is removed simply due to the 'capacity' in all the power supply stages. It's telling the OS to stop that is the real problem here and not one that current systems provide for ;) But really all 'critical' machines should have some sort of UPS, either on board the machine or an external UPS which can close down the machine cleanly. I don't think one can 'design' relying on some arbitrary effect? Certainly all my critical ones have their own UPS box. Aside from that, I am wondering if this write processing is part of the explanation of the performance differences between Windows and Linux 'web stacks' on the same hardware. I'm seeing W7 setup 4 times slower than the same stack running on SUSE 11.4 which is dual boot installed on the same machine. -- Lester Caine - G8HFL ----------------------------- Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk// Firebird - http://www.firebirdsql.org/index.php |