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- Xref: sparky comp.os.msdos.misc:4705 comp.os.msdos.apps:4314
- Path: sparky!uunet!wupost!waikato.ac.nz!canterbury.ac.nz!cctr132
- Newsgroups: comp.os.msdos.misc,comp.os.msdos.apps
- Subject: Re: WARNING !!!!! MS WINDOWS 3.1 SmartDrive Problem
- Message-ID: <1992Aug14.141659.328@csc.canterbury.ac.nz>
- From: cctr132@csc.canterbury.ac.nz (Nick FitzGerald, CSC, Uni. of Canterbury, NZ)
- Date: 14 Aug 92 14:16:58 +1200
- References: <1992Aug13.040731.2286@cs.mcgill.ca> <1992Aug13.202720.22761@serval.net.wsu.edu>
- Organization: University of Canterbury, Christchurch, New Zealand
- Lines: 36
-
- In article <1992Aug13.202720.22761@serval.net.wsu.edu>,
- mwoodwar@yoda.eecs.wsu.edu (woodward matthew d - CS350) writes:
- > In article <1992Aug13.040731.2286@cs.mcgill.ca> George Mitchell (passed on)
- > writes...
- [George Mitchell's warning about smartdrive deleted]
- >
- > George is correct that this is dangerous. This, however, is neither a bug
- > nor a problem with the Win 3.1 smartdrive program.
-
- I agree it's not a bug - some may disagree that it's not a problem. To
- make write-behind caching the -default- and --NOT-- clearly explain this
- to users - many of whom will have no concept of what disk caching is,
- let alone the potential problems of write-behind caching - is bordering
- on negligent, IMHO.
-
- > The problem is PC users who don't think before they flip the switch, and
-
- I thought you said there was no problem?
-
- > Microsoft not trapping the warmboot vector to flush the cache before a
- > warmboot.
-
- This is incorrect to the best of my knowledge. With smartdrive loaded,
- at DOS proper - not a DOS prompt run from inside Win31 - the keyboard to
- screen response is slower on my 386/20-8MB than on an XT/4.77, much
- slower. I take this as evidence that smartdrive totally usurps the
- keyboard for its own purposes - presumably to catch Ctrl/Alt/Del. Once
- Win31 is running it can drop this practice, as Windows does the reboot
- checking for it and presumably signals smartdrive to flush its unwritten
- buffers should the user actually insist on rebooting.
-
- Anyone know better?
-
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- Nick FitzGerald, PC Applications Consultant, CSC, Uni of Canterbury, N.Z.
- n.fitzgerald@csc.canterbury.ac.nz (64)(3) 642-337 Voice, 642-332 FAX
-