Date: Thu, 21 Aug 1997 04:33:08 -0500 (CDT) From: "Daniel M. Eischen" <deischen@iworks.InterWorks.org> To: andreas@wup.de, freebsd-hardware@FreeBSD.ORG, syssgm@dtir.qld.gov.au Subject: Re: Quiet SCSI disk? Message-ID: <199708210933.EAA13128@iworks.InterWorks.org>
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> [about the 4GB DCAS 34330W] > > >Do you know how many tags it uses (tagged command queuing) ? > >It was a bit disappointing for me, that the IBM DORS 32160 2.1GB > >only offers 3 and the the famous QUEUE_FULL condistion ... > > I run mine off a Diamond FirePort 40 (uses the 53c875J chip). When I run > ncrcontrol, it tells me it is using 4 tags. I don't know if I can use > more. I remember reading somewhere that Stefan thinks 4 is a good number. > I can't remember his reasoning, or where I read it. :-/ My IBM 32160: sd0: <IBM DORS-32160W !# WA3E> type 0 fixed SCSI 2 sd0: Direct-Access 2063MB (4226725 512 byte sectors) can do at least 16 tags. I've tested it under Linux with 16 tags and use the default 8 tags under FreeBSD (both with aic7xxx drivers). Dan Eischen deischen@iworks.InterWorks.org
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