Date: Thu, 17 Aug 1995 12:13:57 -0700 From: "Justin T. Gibbs" <gibbs@freefall.FreeBSD.org> To: mar7@cec.wustl.edu (Matt Rosenberg) Cc: questions@freebsd.org Subject: Re: Multiple Adaptec 2742W's Message-ID: <199508171913.MAA02629@freefall.FreeBSD.org> In-Reply-To: Your message of "Thu, 17 Aug 95 13:49:30 CDT." <9508171849.AA05085@cec.wustl.edu>
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>On Thu, 17 Aug 1995 at 07:54:26 -0700, >Adaptec actually recommends using the same IRQ if the two cards are the >model (which they are here). When trying the same IRQ, I've been using IRQ >11. When using the separate IRQ's, I've been using 11 and 12. I've checked >closely for possible conflicts, but they do not exist. From the very >beginning I've had the BIOS disabled for the second adaptor. And I tell you that FreeBSD does not support haveing them on the same IRQ. They must be different. >>>BTW, although the Seagate 43401N _is_ a wide SCSI device if the >>>2742W is configured to "initiate wide negotiation" for the >>>43401N, FreeBSD 2.0.5 will not probe the device correctly. It >>>doesn't make a difference to DOS whether that flag is turned >>>on. >> >>Can you try the latest SNAP-shot floppy? Its not quite the latest >>code, but it is much closer than 2.0.5. > >I'm using it as an active, up and running, web server, so I don't want to >take it down many more times or much longer than possible. I did find a fix >to that problem. Just turn off the "initiate wide negotiation" flag for the >drive from the Adaptor configuration tool in DOS. When this flag is left >on, FreeBSD reads the drive as a "S441 00427 1N" instead of "SEAGATE 43401N >0104"; the type is read as "type 0 fixed SCSI 3" instead of "type 0 fixed >SCSI 2"; the size is read as 6528MB instead of the correct 2777MB; and this >all causes the partition table to become undreadable, so I don't even have a >chance to tell it the correct geometry. DOS doesn't seem to care if the >flag is on or off, and the manual for the drive does say that it is a "wide >SCSI" device, and its only I/O port is a 68-pin SCSI 3 port. *shrug* I >don't know, I found a work-around. Give this to the hackers who wrote the >driver for the adaptor. Um... I am the "hacker who wrote the driver". The problem you're seeing has to do with wide residue on dealing with a wide device and has been fixed with the latest driver. If you're running a Web site, you should be running -stable anyway, so I would strongly suggest you upgrade especially if you are planning to use the 2742W. >============================================= >Matt Rosenberg >Washington University School of Law >St. Louis, MO, USA > >mar7@cec.wustl.edu ; rosenbem@wulaw.wustl.edu >http://www.cec.wustl.edu/~mar7/ >============================================= > -- Justin T. Gibbs =========================================== Software Developer - Walnut Creek CDROM FreeBSD: Turning PCs into workstations ===========================================
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