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From: jq@brahms.udel.edu (John W Quillen Jr)
Newsgroups: comp.periphs.scsi
Subject: SCSI-II on Sun SPARCstations?
Keywords: SCSI-II, SPARC, Sun
Message-ID: <17345@brahms.udel.edu>
Date: 8 Jan 91 02:20:41 GMT
Organization: University of Delaware
Lines: 20

Has anyone had experience using SCSI-II devices on Suns?
I specifically interested in tagged command queuing.

So far I know that:
	SPARCstation 1s & 1+s use the NCR53C90 chip, which doesn't appear to
	support SCSI-II.  I used scsi_ifgetcap() to find out that a SPARCstation 1
	running 4.0.3 doesn't know what tagged queuing is.

	SPARCstation 2s use the NCR53C90A chip, which appears to support SCSI-II,
	but who has one?  Does 4.1.1 support tagged queuing?

	Eltek has an SBus to SCSI board which uses the NCR53C90A chip.  Central Data
	will soon have a board using the NCR53C710.  Anyone used Eltek's or another
	I haven't heard of?

Any information or suggestions would be greatly appreciated.

Thanks,

John Quillen	Bluestone Consulting	jq@brahms.udel.edu