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From: spencer@eris.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: Facc From ASDG
Message-ID: <4024@jade.BERKELEY.EDU>
Date: Fri, 19-Jun-87 19:24:08 EDT
Article-I.D.: jade.4024
Posted: Fri Jun 19 19:24:08 1987
Date-Received: Sun, 21-Jun-87 04:21:53 EDT
Sender: usenet@jade.BERKELEY.EDU
Reply-To: spencer@eris.BERKELEY.EDU (Randy Spencer)
Organization: University of California, Berkeley
Lines: 29

In article <587@madvax.UUCP> richc@madvax.UUCP (Rich Commins) writes:
>> What I want is a DISK cache.  Facc?  That is a DRIVE cache.  Pop out
>> the disk for any reason, and all those lovely buffers are invalidated.
>> For people having only one drive, and even for me with two, it's an
>> all-too-common occurrance to have to drag in a program from elsewhere
>> than the mounted disk(s).
>
>	I think there are enough ways to get into trouble with caching
>	drives that it should be made an option for the advanced user.
>	If the user KNOWS that nothing has changed then he can elect to
>	restore the buffers and take his risks.  The default should
>	remain as a DISK cache.
>Rich Commins   (415)939-2400				          \  /\

Actually, the little magic cookie that lets the computer tell the difference
between disks is the last write date on the disk.  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).

(...I think).
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Randy Spencer      P.O. Box 4542   Berkeley  CA  94704        (415)284-4740 
                         I N F I N I T Y                 BBS: (415)283-5469
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