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Article #7686Mods to the Mac-Plus Write-Thru Cache?
From: Jeff Harrow, NCSE LKG1-3/F16 DTN...
Date: Fri, 17 Oct 1986 18:20
Date: Fri, 17 Oct 1986 18:20
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I believe that we have finally put to rest the confusion about the Mac-Plus Control Panel Cache: It is **NOT** write-thru. Hence you **DO** risk that in a crash situation, files which you THOUGHT were safe (you SAVEd them) can really be left in an un-updated, or even corrupt state. I still don't understand why Apple would choose this dangerous type oc cache when the Mac usually defaults to the safest mode (yes, non-write thru IS faster, but so is not asking a user if he wants to save a modified document when he quits the application...). Now for my question: Since Apple didn't even offer the OPTION of choosing safety over speed (a radio button to show a DEFAULT of write-thru, with the OPTION of non-write-thru), has anyone figured out a SAFE patch to the cache code to make this non-write-thru cache into a write-thru one? Jeff Harrow
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!columbia!rutgers!sri-spam!nike!ucbcad!ucbvax!decwrl!exodus.dec.com!harrow From: harrow@exodus.dec.com (Jeff Harrow, NCSE LKG1-3/F16 DTN=226-7445) Newsgroups: net.micro.mac Subject: Mods to the Mac-Plus Write-Thru Cache? Message-ID: <6009@decwrl.DEC.COM> Date: Fri, 17-Oct-86 14:20:53 EDT Article-I.D.: decwrl.6009 Posted: Fri Oct 17 14:20:53 1986 Date-Received: Sat, 18-Oct-86 00:39:39 EDT Sender: daemon@decwrl.DEC.COM Organization: Digital Equipment Corporation Lines: 16