From owner-freebsd-questions Tue Feb 27 11:46:00 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id LAA17599 for questions-outgoing; Tue, 27 Feb 1996 11:46:00 -0800 (PST) Received: from mailhub.aros.net ([205.164.111.17]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id LAA17565 for ; Tue, 27 Feb 1996 11:45:47 -0800 (PST) Received: from terra.aros.net (terra.aros.net [205.164.111.10]) by mailhub.aros.net (8.6.12/Unknown) with ESMTP id MAA02234; Tue, 27 Feb 1996 12:46:30 -0700 Received: (from angio@localhost) by terra.aros.net (8.6.12/8.6.12) id MAA19649; Tue, 27 Feb 1996 12:45:38 -0700 From: Dave Andersen Message-Id: <199602271945.MAA19649@terra.aros.net> Subject: Re: Ncr scsi: overlapped commands attempted To: se@zpr.uni-koeln.de (Stefan Esser) Date: Tue, 27 Feb 1996 12:45:38 -0700 (MST) Cc: angio@aros.net, questions@freebsd.org In-Reply-To: <199602261508.AA04154@Sysiphos> from "Stefan Esser" at Feb 26, 96 04:08:05 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-questions@freebsd.org Precedence: bulk Lo and behold, Stefan Esser once said: > On Feb 23, 19:10, Dave Andersen wrote: > } > } ABORTED COMMAND asc:4e,0 Overlapped commands attempted > } P133 - 32 MB, 2 1gb NEC SCSI drives, 1 2gb HP SCSI drive > > Yes: Switch off tagged commands ... :( > > options "SCSI_NCR_DFLT_TAGS=0" > options "SCSI_NCR_MAX_TAGS=0" Works like a charm with these options set. > You can selectively enable tagged commands > for the other drives from /etc/rc.local: > > ncrcontrol -t0 -t1 -s tags=4 I get an error message when I try this: ncrcontrol: incompatable with kernel. Rebuild! Is this something that only works with -current, or am I missing some -stable changes to ncrcontrol? (I'm using -stable at the moment) What kind of performance hit am I looking at if I leave tagged commands off? The other option is to swap the drive for something else, which I'm not at all above doing if it's going to be a headache. > If this works for you, then I can provide > you with another patch, which might allow > enabling tags on the HP drive, too. I'll guinea pig happily if I can patch it off of -stable. -Dave -- angio@aros.net Complete virtual hosting and business-oriented system administration Internet services. (WWW, FTP, email) http://www.aros.net/ http://www.aros.net/about/virtual/ "There are only two industries that refer to thier customers as 'users'."