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Article #3251

scsi

#3251
From: Woody Baker Eagle Signal
Date: Tue, 02 Oct 1990 17:27
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If any of you have taken a look at Don Lancasters latest column, he
has documented a way to allow an external scsi bus computer to access the
hard disk in the laserwriters that have hard disks.  It is sort of a kludge
but it works.  He points out some directions that need investigation.


The apparently simplest way to do this, (and it is a bit of a kludge) is to
initialize your hard disk, and before doing anything else, set up a couple of
huge files.  these will apparently be contiguous files, and thier addresses
are known. (he gives the block numbers in his article)  Then you can use
direct block reads and writes to put data into the file on the hard disk over
the scsi port at some absolutly incredible speed.  If you wish to save
the file elsewhere, you can apparently copy it to somewhere else on the
hard disk.  He uses this to dump massive precompiled documents (precompiled
in the sense of something like distillary) to the printer, so that he
can do his book on demand printing. He also says that you can back your 
hard disk up via this technique.

Any comments on an easier way to do it?

Cheers
Woody
Technical Details
Message-ID: <1602@chinacat.Unicom.COM>
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!chinacat!woody

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!chinacat!woody
From: woody@chinacat.Unicom.COM (Woody Baker @ Eagle Signal)
Newsgroups: comp.lang.postscript
Subject: scsi
Keywords: Fast access
Message-ID: <1602@chinacat.Unicom.COM>
Date: 2 Oct 90 17:27:02 GMT
Organization: a guest of Unicom Systems Development, Austin
Lines: 22