Date: Tue, 27 Jan 1998 14:34:38 -0800 (PST) From: Burton Sampley <bsampley@slip.net> To: Doug White <dwhite@resnet.uoregon.edu> Cc: Chris Sagar <CSagar@exchange.iterated.com>, "'freebsd-questions@FreeBSD.ORG'" <freebsd-questions@FreeBSD.ORG> Subject: Re: adding disk drives Message-ID: <Pine.BSF.3.96.980127141949.3254E-100000@bsampley.my.domain> In-Reply-To: <Pine.BSF.3.96.980127104740.16462M-100000@gdi.uoregon.edu>
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-----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 <dwhite@gdi.uoregon.edu> > Reply-To: Doug White <dwhite@resnet.uoregon.edu> > To: Chris Sagar <CSagar@exchange.iterated.com> > Cc: "'freebsd-questions@FreeBSD.ORG'" <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-----
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