Re: MaxTransfer for 1.3 FFS

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#10250

From: Larry Phillips
Date: Tue, 08 Nov 1988 14:40

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 > Anybody know why "MaxTransfer" is required, i.e., the technical reason?

MaxTransfer is required for the FFS.  Since FFS will request the largest
possible number of blocks it can (contiguous sectors in a data file to be
read or contiguous free sectors for a write), the driver/controller needs
to be able to handle that size of request.  Most controllers are limited in
the number of sectors that can be transferred at once, and if the driver
does not allow for multiple operations to cover the requested data size,
you will end up with errors.  MaxTransfer simply limits the amount the FFS
will request in one chunk.

-larry

--
"Intelligent CPU?  I thought you said Intel CPU!" 
        -Anonymous IBM designer-
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|   //   Larry Phillips                                          |
| \X/    lpami.wimsey.bc.ca!lphillips or van-bc!lpami!lphillips  |
|        COMPUSERVE: 76703,4322                                  |
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!attcan!uunet!van-bc!lpami
From: lphillips@lpami.van-bc.UUCP (Larry Phillips)
Newsgroups: comp.sys.amiga.tech
Subject: Re: MaxTransfer for 1.3 FFS
Message-ID: <1948@van-bc.UUCP>
Date: 8 Nov 88 14:40:20 GMT
Sender: lpami@van-bc.UUCP
Lines: 22