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From: Terry Lambert <terry@lambert.org>
Newsgroups: comp.unix.bsd.freebsd.misc,comp.unix.bsd.bsdi.misc
Subject: Re: Why one should buy parity memory for reliability?
Date: Sat, 05 Oct 1996 16:04:44 -0700
Organization: Me
Lines: 17
Message-ID: <3256E98C.DEAEA48@lambert.org>
References: <32485B0D.41C6@austin.ibm.com> <52br3d$9s8@flash.noc.best.net> <52tlao$9uf@innocence.interface-business.de>
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Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:28635 comp.unix.bsd.bsdi.misc:5055
J Wunsch wrote:
] ...the ``radiation'' problem is something that has long since gone.
] At least, the original one. It was caused by alpha particles, since
] these are rather heavy-weighted (helium nuclei), thus they were able
] to discharge the memory capacitor at once all the time since the era
] of 64 kbit RAMs. However, due to their big size, these nuclei cannot
] penetrate even moderate amounts of harder material, even a few 10 µm's
] of plastics are a complete shield against them.
Actually, the ceramic casings themselves were alpha sources a lot
of the time.
Terry Lambert
terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.