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From: dolf@idca.tds.PHILIPS.nl (Dolf Grunbauer)
Newsgroups: comp.arch
Subject: Re: Real disk FASTER than Ram disk
Message-ID: <763@ssp11.idca.tds.philips.nl>
Date: 31 May 90 21:02:11 GMT
References: <641@sibyl.eleceng.ua.OZ> <136299@sun.Eng.Sun.COM> <1990May27.210935.8564@murdoch.acc.Virginia.EDU> <3402@auspex.auspex.com> <60196@lll-winken.LLNL.GOV> <5490@titcce.cc.titech.ac.jp>
Organization: Philips Information Systems, Apeldoorn, The Netherlands
Lines: 18

In article <5490@titcce.cc.titech.ac.jp> mohta@necom830.cc.titech.ac.jp (Masataka Ohta) writes:
?      But, writing a memory disk device driver is already non-trivial.

I beg to differ on this point. I think it depends highly on the involved
operating system. I've written many device drivers for a real-time
operating system called ERM System and the ram disk driver was the most
easy one to write. Others were real disk drivers, centronics, RS232,
Ethernet, IEEE-bus.


?    Moreover, a memory disk has several limitations including its maximum size.

Just like a normal physical disk. No distinction here.
-- 
Dolf Grunbauer      Tel: +31 55 433233 Internet dolf@idca.tds.philips.nl
Philips Information Systems            UUCP     ...!mcsun!philapd!dolf
Dept. BS Software,  P.O. Box 245, 7300 AE Apeldoorn, The Netherlands 
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