From owner-freebsd-stable Fri Jul 13 23:59:22 2001 Delivered-To: freebsd-stable@freebsd.org Received: from warez.scriptkiddie.org (uswest-dsl-142-38.cortland.com [209.162.142.38]) by hub.freebsd.org (Postfix) with ESMTP id 0D5C137B405 for ; Fri, 13 Jul 2001 23:59:20 -0700 (PDT) (envelope-from lamont@scriptkiddie.org) Received: from [192.168.69.11] (unknown [192.168.69.11]) by warez.scriptkiddie.org (Postfix) with ESMTP id 431F662D01; Fri, 13 Jul 2001 23:59:19 -0700 (PDT) Date: Fri, 13 Jul 2001 23:59:19 -0700 (PDT) From: Lamont Granquist To: Bruce Burden Cc: Subject: Re: Regarding New FreeBSD BenchMark From Sysadmin Mag (left out a fiew tuning options) In-Reply-To: <20010713211922.A8312@tigerfish2.my.domain> Message-ID: <20010713235530.W12542-100000@coredump.scriptkiddie.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, 13 Jul 2001, Bruce Burden wrote: > > Some SCSI drive manufacturers ship their drives > > with WCE enabled. Other SCSI drive manufacturers, who are more > > concerned with data integrity as opposed to performance figures, will > > ship their drives with WCE disabled. > > > I have 3 IBM drives, and the /root drives (U160's) are WCE > enabled. The non-root drive (also happens to be U2W), does not > have WCE enabled. > > Could WCE be a featue of U160? i've got: ahc0: port 0xcc00-0xccff mem 0xefffe000-0xefffefff irq 11 at device 13.0 on pci0 aic7899: Wide Channel A, SCSI Id=7, 32/255 SCBs ahc1: port 0xdc00-0xdcff mem 0xeffff000-0xefffffff irq 10 at device 13.1 on pci0 aic7899: Wide Channel B, SCSI Id=7, 32/255 SCBs and: da0 at ahc0 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI-3 device da0: 160.000MB/s transfers (80.000MHz, offset 63, 16bit), Tagged Queueing Enabled da0: 35003MB (71687369 512 byte sectors: 255H 63S/T 4462C) and WCE was = 1 by default, but camcontrol worked to turn it off To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message