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From: rorden@icon.com (Randy Rorden)
Subject: Re: SCSI vs fast SCSI
Organization: Icon International, Inc.
Date: Sat, 22 Aug 1992 21:39:01 GMT
Message-ID: <1992Aug22.213901.4211@icon.com>
References: <1992Aug19.010742.844@sherpa.uucp> <Bt8qxv.JyD@acsu.buffalo.edu> <2178@ncr-mpd.FtCollins.NCR.COM>
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In article <2178@ncr-mpd.FtCollins.NCR.COM> gkendall@ncr-mpd.FtCollins.NCR.COM (Guy Kendall) writes:
>In article <Bt8qxv.JyD@acsu.buffalo.edu> lps@cs.Buffalo.EDU (Lawrence P. Schnitzer) writes:
>
>>FAST SCSI-2 has a maximum transfer rate of 10 MBytes/sec over the bus
>>as opposed to 5 MBytes/sec for SCSI.  Note that you'll never achieve
>>either of these rates - they're maximum rates.  Also, I don't think that 
>
>That's not true. You might not see these rates with off the shelf disk
>drives, but SCSI and SCSI-2 can most definately hit these maximum rates.
>Off the shelf disk drives are not the only SCSI peripherals.
>

Another often-overlooked reason why FAST SCSI-2 may be worthwhile is in
multiple drive configurations on the same SCSI bus in systems which
support disconnect/reconnect and/or tagged queueing.  With 10 MBytes/sec
transfer rates, each drive spends less time on the bus, allowing more
drives to share it without performance degradation.


Randy Rorden                 rorden@icon.com
Engineering Director
Icon International, Inc.     PHONE: (801) 225-6888
Orem, Utah 84057	     FAX: (801) 226-0651


-- 
Randy Rorden                 rorden@icon.com
Hardware Development Manager
Icon International, Inc.     PHONE: (801) 225-6888
Orem, Utah 84057	     FAX: (801) 226-0651
