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From: peter@sugar.UUCP (Peter DaSilva)
Newsgroups: comp.sys.amiga
Subject: Re: Facc From ASDG
Message-ID: <229@sugar.UUCP>
Date: Fri, 26-Jun-87 23:39:35 EDT
Article-I.D.: sugar.229
Posted: Fri Jun 26 23:39:35 1987
Date-Received: Wed, 1-Jul-87 06:34:37 EDT
References: <4024@jade.BERKELEY.EDU> <1803@vax135.UUCP>
Organization: Sugar Land UNIX - Houston, TX
Lines: 10
Keywords: Time stamp
Summary: That's what you want to happen.

>So, if I change the
>disk in my other Amiga, the write date on the disk changes, and when I put
>it back in my first Amiga the "disk" cache would think it was a different
>disk and invalidate the old tracks (or at least not use them for this disk).

Which is what you want to happen. If you write to the disk there's no way of
knowing whether any of the buffered tracks are good or not so you have to
invalidate them anyway.

This would therefore be perfectly safe, albeit less than perfectly efficient.