Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!uunet!orca!tonto!courtney From: courtney@tonto.es.com (Courtney Goeltzenleuchter) Newsgroups: comp.periphs.scsi Subject: Re: Mixing sync and async SCSI devices Keywords: SCSI async sync Message-ID: <1991Feb22.201602.10592@dsd.es.com> Date: 22 Feb 91 20:16:02 GMT References: <1991Feb22.071227.26612@msen.com> Sender: usenet@dsd.es.com Reply-To: courtney@tonto.es.com (Courtney Goeltzenleuchter) Organization: Evans & Sutherland Computer Corp., Salt Lake City, UT Lines: 13 Nntp-Posting-Host: 130.187.85.156 In article <1991Feb22.071227.26612@msen.com>, osm@msen.com (Owen Scott Medd) writes: > If I mix sync and async SCSI devices on the same bus, do I force *all* > devices on the bus to be dealt with as async devices? No, you don't force all the devices to be async. It is the job of the initiator (typically the host CPU) to negotiate with each target device whether or not the initiator will use syncronous transfers with that target. -- Courtney Goeltzenleuchter, Evans & Sutherland Computer Corporation Design Systems Division, P.O. Box 8070, Salt Lake City, Utah 84108 (801) 582-5847 UUCP: { decwrl | utah-cs | sun!sunpeaks!sunslc } !esunix!cgoeltze INET: courtney@dsd.es.com