Date: Fri, 18 Oct 1996 09:28:28 -0500 (CDT) From: Joe Greco <jgreco@brasil.moneng.mei.com> To: michaelv@MindBender.serv.net (Michael L. VanLoon -- HeadCandy.com) Cc: scrappy@ki.net, michaelh@cet.co.jp, mrcpu@cdsnet.net, current@freebsd.org Subject: Re: Iozone: local vs nfs drives Message-ID: <199610181428.JAA02841@brasil.moneng.mei.com> In-Reply-To: <199610180457.VAA14497@MindBender.serv.net> from "Michael L. VanLoon -- HeadCandy.com" at Oct 17, 96 09:57:31 pm
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> Ah yes. It must have been someone else that posted that he was using > an Adaptec 2940. I mis-threaded... > > I know the NCR supports tagged-command-queuing, also, but since I > don't use one (except on some NT machines at work), I don't know what > you do to enable it. Joe Greco would know. I take exception to that :-) Alls I know is that they are enabled by default. Run "ncrcontrol": # ncrcontrol T:L Vendor Device Rev Speed Max Wide Tags 0:0 SEAGATE ST31055N 0318 10.0 10.0 8 4 1:0 SEAGATE ST31055N 0318 10.0 10.0 8 4 2:0 SEAGATE ST31055N 0318 10.0 10.0 8 4 3:0 SEAGATE ST31055N 0318 10.0 10.0 8 4 4:0 SEAGATE ST31055N 0318 10.0 10.0 8 4 I just a day or two ago sent a note to Stefan asking about the maximum number of tags allowable... it looks to me as though IF you are using the Adaptec stuff that it defaults to 8 tags. I really don't know anything much about the real technical details of this stuff though.. I rely on the SCSI gods for this info. ... JG
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