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Date:      Fri, 2 Aug 1996 13:09:41 -0700
From:      Jim Shankland <jas@flyingfox.COM>
To:        freebsd-hardware@freebsd.org
Subject:   h/w requirements for CD-R writing?
Message-ID:  <199608022009.NAA14408@saguaro.flyingfox.com>

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Can anyone lend any insight on this question:

Is a single NCR53C810 SCSI host adapter sufficient for CD-ROM writing,
or will I need a second SCSI host adapter, so that one reads the
disk while the other writes the CD-ROM?  I understand that there are
real-time constraints when writing CD-R's, but on the other hand,
they're only writing at 300 KB/s, and they have 1 or 2 MB of cache ....

The tentative plan is to dedicate an old 66 MHz Pentium box with
an NCR53C810 on the motherboard, with a 1.3 GB SCSI-2 HP disk
(4KRPM, 13.5 ms average access, ca. 2 MB/s sustained transfer rate),
plus a CD-writer to be determined, to this task.  Is this
likely to work?

Jim Shankland
Flying Fox Computer Systems, Inc.



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