From owner-freebsd-questions@FreeBSD.ORG Wed Apr 27 05:26:41 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7543E16A4CE for ; Wed, 27 Apr 2005 05:26:41 +0000 (GMT) Received: from ms-smtp-02-eri0.southeast.rr.com (ms-smtp-02-lbl.southeast.rr.com [24.25.9.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id AE7A443D41 for ; Wed, 27 Apr 2005 05:26:40 +0000 (GMT) (envelope-from jason@ec.rr.com) Received: from [192.168.1.101] (cpe-065-184-196-020.ec.res.rr.com [65.184.196.20])j3R5QW0V002535; Wed, 27 Apr 2005 01:26:32 -0400 (EDT) Message-ID: <426F2523.8090702@ec.rr.com> Date: Wed, 27 Apr 2005 01:37:39 -0400 From: jason henson User-Agent: Mozilla Thunderbird 1.0.2 (X11/20050426) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rob References: <20050427025018.5083.qmail@web54003.mail.yahoo.com> In-Reply-To: <20050427025018.5083.qmail@web54003.mail.yahoo.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Symantec AntiVirus Scan Engine cc: rees@ddcom.co.jp cc: FreeBSD questions Subject: Re: What is ata2 ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Apr 2005 05:26:41 -0000 Rob wrote: >Joel wrote: > > >>On Tue, 26 Apr 2005 18:44:18 -0700 (PDT) >>Rob wrote >> >> >>>I'm running FreeBSD on a range of PCs, from >>>Pentium-1 (60 MHz) to Pentium-4 (2.60GHz), though >>>none but one has a 'ata2' line in the dmesg output: >>> >>>ata0: channel #0 on atapci0 >>>ata1: channel #1 on atapci0 >>>... >>>ata2: at port >>> 0x36e-0x36f,0x168-0x16f irq 10 on isa0 >>>ad0: 6149MB >>> [13328/15/63] at ata0-master UDMA33 >>>ad1: 4892MB >>> [10602/15/63] at ata0-slave UDMA33 >>>acd0: CDROM at ata1-master PIO4 >>> >>>What is so special about this particular PC, that >>>it has an ata2, unlike all other PCs I have? >>> >>>Can I add more than 4 disks (2 masters + 2 slaves) >>>to this PC? Or is this ata2 for something else? >>> >>> >>From here, with the limited information you've >>provided, I'm guessing you can, if you have the >>cables and the spare power connectors. >> >> > >I'm quite keen on trying to understand this. >So let me try to provide more information below. > >As above lines show, the ata2 controller is on >interrupt 10: > > # vmstat -i > interrupt total rate > irq0: clk 10392173 100 > irq1: atkbd0 1 0 > irq3: sio1 219 0 > irq4: sio0 1 0 > irq8: rtc 13301014 128 > irq11: rl0 uhci0 187119 1 > irq13: npx0 1 0 > irq14: ata0 491426 4 > irq15: ata1 46 0 > Total 24372000 234 > >But interrupt 10 is not there !?! > > # atacontrol list > ATA channel 0: > Master: ad0 > ATA/ATAPI revision 4 > Slave: ad1 > ATA/ATAPI revision 4 > ATA channel 1: > Master: acd0 ATA/ATAPI revision 0 > Slave: no device present > ATA channel 2: > Master: no device present > Slave: no device present > >---------------------- > >You also mentioned USB possibility: > # grep -i usb /var/run/dmesg.boot > uhci0: > port 0xe000-0xe01f irq 11 at device 7.2 on pci0 > usb0: > on uhci0 > usb0: USB revision 1.0 > > >What would you conclude from this? >Is this ata2 another IDE controller, so that I can >add 6 (instead of the normal 4) harddisks/cdroms etc. >to this computer? > >Thanks, >Rob. > >__________________________________________________ > > You have more than 2 controllers. A whole dmesg would help, or just tell us your make/model of your motherboard. BTW, vmstat -ia might be usefull, most likely not.