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Date:      Mon, 27 Jul 1998 17:30:32 -0700 (PDT)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        WilsonFC@RASG.WPAFB.AF.MIL
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: FW: FreeBSD 2.2.6
Message-ID:  <Pine.BSF.4.00.9807271723190.2941-100000@resnet.uoregon.edu>
In-Reply-To: <5421AD9121BBD1119A3A00A0C92683560EF57F@ramail.ra.wpafb.af.mil >

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On Fri, 24 Jul 1998 WilsonFC@RASG.WPAFB.AF.MIL wrote:

> According to the web site I sent this to the wrong place. If it somehow
> appeared where it was supposed to please ignore the one you think is a
> duplicate. 

questions is the right place.  I'll get down to the meat here...

We'll note that 2.1.0 worked fine ... 

> > > The support routines on the adapter report the following information:
> > > Bus Connections
> > > 	0	MICROP	4345WS
> > > 	1	MICROP	2217-15MZ1001905
> > > 	3	PLEXTOR 	CD-ROM PX-12CS
> > > 	4	ARCHIVE 	VIPER 2525 25462
> > > 	7	AHA-2940	Ultra/Ultra W
> > > 
> > > All devices are enabled for "Sync Negotiation"
> > > All devices are enabled for "Enable Disconnection"
> > > All devices are enabled for "Wide Negotiation"
> > > 
> > > Units 0,1,3,4 set for "Include in BIOS scan"
> > > None are set for "Start Unit" command
> > > PnP Scan Support is disabled
> > > Reset SCSI Bus at IC Initialization is enabled
> > > Host Adapter BIOS is enabled
> > > Support Removable Disks under BIOS as Fixed Disks is set for "Boot Only"
> > > Extended BIOS Translation for DOS drives > 1GByte is enabled
> > > Multiple LUN support is disabled
> > > BIOS support for Bootable CD-ROM is enabled
> > > BIOS support for Int13 Extensions is enabled
> > > Support for Ultra SCSI speed is enabled

Okay, this is out of the Adaptec configuration I'm guessing.

> > > SCSI ID:LUN NUMBER #:# 0:0 MICROP	4345WS                     - Drive
> > > C:(80h)
> > > SCSI ID:LUN NUMBER #:# 1:0 MICROP 	2217-15MZ1001905	   - Drive
> > > D:(81h)
> > > SCSI ID:LUN NUMBER #:# 3:0 PLEXTOR 	CD-ROM PX-12CS
> > > SCSI ID:LUN NUMBER #:# 4:0 ARCHIVE 	VIPER 2525 25462

Okay, here is our SCSI targets ... 

> > > This is the good stuff:
> > > ahc0:<Adaptec 2940 Ultra SCSI host adapter> rev 0 int a IRQ 14 on
> > pci0:10:0
> > > ahc0:aic7880 Wide channel, SCSI id=7, 16 SCBs
> > > ahc0: waiting for scsi devices to settle
> > > (ahc0:0:0): "MICROP 4345WS P429" type 0 fixed SCSI 2
> > > sd0(ahc0:0:0):Direct-Access 4340MB (8890029 512 byte sectors)
> > > (ahc0:1:0): ABORTED COMMAND asc:49,0 Invalid message error	
> > > (ahc0:3:0): "PLEXTOR CD-ROM PX-12CS 1.01" type 5 removable SCSI 2
> > > cd0(ahc0:3:0): CD-ROM cd present [323780 x 2048 byte records]
> > > ahc0:A:4: refuses WIDE negotiation. Using 8bit transfers
> > > ahc0:A:4: refuses synchronous negotiation. Using asynchronous transfers
> > > (ahc0:4:0) "ARCHIVE VIPER 2525 25462 -007" type 1 removable SCSI 1
> > > st0(ahc0:4:0) Sequential-Access density code 0x0, drive empty
> > > 
> > > The adapter has two cables, one for wide devices and one for normal
> > devices.

Aaarrrgghhh.. I hate these ... the termination is about impossible to get
right since it's a forked bus, which violates SCSI philosophy.  Check
Adaptec's site and make extra extra sure you have the termination set up
properly.  The important thing is to make sure the adapter does NOT
terminate the narrow (low) bus.  While you're there, make sure your device
arrangement is kosher.  On a single chain with mixed wide/narrow devices
the wide device has to be at the end.

Also try disabling wide & sync negotiation on the second drive (at target
1) and on the CDROM.

> > > The only thing on the wide cable is the 4345. The rest of the devices
> > are on
> > > the regular SCSI cable. 

Okay, so the 4345 is the only wide device.  (Do you by chance have the
firmware upgrade for this drive?  It has some nasty bad-block-remapping
bugs that keep biting my PPro200.)

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major


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