From owner-freebsd-questions Tue Jan 27 14:37:25 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id OAA01660 for questions-outgoing; Tue, 27 Jan 1998 14:37:25 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from mole.slip.net (mole.slip.net [207.171.193.16]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id OAA01533 for ; Tue, 27 Jan 1998 14:36:52 -0800 (PST) (envelope-from bsampley@slip.net) Received: from sf-pm17-26-90.dialup.slip.net [207.171.212.90] by mole.slip.net with smtp (Exim 1.73 #2) id 0xxJbn-0001sB-00; Tue, 27 Jan 1998 14:35:56 -0800 Date: Tue, 27 Jan 1998 14:34:38 -0800 (PST) From: Burton Sampley X-Sender: bsampley@bsampley.my.domain To: Doug White cc: Chris Sagar , "'freebsd-questions@FreeBSD.ORG'" Subject: Re: adding disk drives In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk -----BEGIN PGP SIGNED MESSAGE----- 2944 = differential SCSI 2940 = single ended SCSI Check the handbook for more info on the difference between the two types of SCSI. - --------------- Burton Sampley bsampley@best.com or bsampley@haywire.csuhayward.edu or bsampley@slip.net PGP key available at http://www.best.com/~bsampley/pgp.html On Tue, 27 Jan 1998, Doug White wrote: > Date: Tue, 27 Jan 1998 10:51:24 -0800 (PST) > From: Doug White > Reply-To: Doug White > To: Chris Sagar > Cc: "'freebsd-questions@FreeBSD.ORG'" > Subject: Re: adding disk drives > > On Fri, 23 Jan 1998, Chris Sagar wrote: > > > I am trying to add two disk arrays. My configuration is: > > 8 4-gb Seagate drives on one Adaptec 2944UW controller ( two identical > > setups. 64 GB total, two controllers, 16 disks) > > I plan to use ccd to create two 32 GB logical volumes for the system. > > OK. (What's the difference between the 2940 and the 2944, if you know?) > > > My question/comments: > > Am I missing something in that it looks like I have to configure the > > kernel to support two controllers? The controllers are probed and > > detected at bootup, but where do they show in the /dev directory. > > Controllers don't show up in /dev, only the respective disks as /dev/sd1, > /dev/sd2, and so forth. The boot messages tell you which disk is attached > to which device; you can use the `dmesg' command to review the boot > messages, or they're in the system log /var/log/messages. > > > device names ( /dev/cont??sd0s7). The handbook is very lacking in the > > part of adding disk drives. > > You missed my tutorial! http://www.freebsd.org/tutorials/diskformat/ > > > Do I need to get a BSD manaual to cover > > adding disks. I am fairly competent in various UNIXs (Intergraph, SGI, > > Sun) but I am a stranger to FreeBSD. > > Yeah, you're stuck in the SysV universe. :-) `The Complete FreeBSD' by > Greg Lehey, available from Walnut Creek, would be an excellent purchase. > > > .I have added ahc1 to my kernel config file. I have defined scbus0 as > > ahc0 and scbus1 as ahc1. I have locked-down the device numbers to the > > scsi ID (this is a really primitive thing to have to do). I have rebuilt > > the kernel and am proceeding. > > You don't have to force the SCSI IDs unless you have transient devices > like Zip disks that can muck up the works and move the SCSI disk numbers > around. > > Doug White | University of Oregon > Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant > http://gladstone.uoregon.edu/~dwhite | Computer Science Major > > > -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBNM5hBXt2O8KJtMdBAQHylwP+IvllHHyo3kkkPv4bdesOskMDegUkAR54 D55WO9hBPe4ZI+WUk2VRAC3wSFwoYhvyVZJVNqjm7fitJZZZ7I2K8lKKkgbsCUvX pqZmW1vWKzN8zClG5PmtJ2ZG1Nw5b2F9/Nx1LNRmmnbYvUPYctfKqjxD5+gHF/qJ upnlji9MxyI= =7eNo -----END PGP SIGNATURE-----