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Date:      Thu, 19 Nov 1998 09:52:28 -0800 (PST)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        Ken Whedbee <whedbee@digital.net>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: scsi tape-drive and "extraneous data discarded, COMMAND FAILED"
Message-ID:  <Pine.BSF.4.03.9811190951070.2017-100000@resnet.uoregon.edu>
In-Reply-To: <8767cc8p4d.fsf@digital.net>

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On 18 Nov 1998, Ken Whedbee wrote:

> I recently moved my internal Wangtek 5525 scsi tape drive from inside my 
> computer case to an external scsi encloser.  The Wangtek has been working 
> just great the past couple of years inside my computer case and using 
> FreeBSD.  But now it is acting up with FreeBSD since I moved it to the
> external encloser.
> 
> When the Wangtek was inside my case, it was the terminating device.  It 
> has the terminator packs in place on the unit.  My CD-ROM drive is now
> terminating my internal bus, and the Wangtek is terminating the external
> bus (with its terminator packs).  My scsi controller is a PCI Tyan S1365 
> with the NCR 875 chip.
> 
> As you can see from the "dmesg" output below, FreeBSD is communicating
> with the Wangtek.  However, not well enough to do dumps and restores.
> When the tape unit was internal to my case, I had no such error messages.
> I now have the Wangtek set for scsi id 4.

Check your cabling -- you may have a flakey one.  It looks like you're
seeing echoes.  Check your SCSI card documentation.

> ncr0 <ncr 53c875 fast20 wide scsi> rev 3 int a irq 10 on pci0:19:0
> (ncr0:0:0): "SEAGATE ST34520N 1335" type 0 fixed SCSI 2
> sd0(ncr0:0:0): Direct-Access 
> sd0(ncr0:0:0): 20.0 MB/s (50 ns, offset 15)
> 4345MB (8899737 512 byte sectors)
> (ncr0:1:0): "SEAGATE ST31200N 8648" type 0 fixed SCSI 2
> sd1(ncr0:1:0): Direct-Access 
> sd1(ncr0:1:0): 10.0 MB/s (100 ns, offset 15)
> 1006MB (2061108 512 byte sectors)
> (ncr0:2:0): "SEAGATE ST51080N 0958" type 0 fixed SCSI 2
> sd2(ncr0:2:0): Direct-Access 
> sd2(ncr0:2:0): 10.0 MB/s (100 ns, offset 15)
> 1030MB (2109840 512 byte sectors)
> (ncr0:3:0): "NEC CD-ROM DRIVE:463 1.05" type 5 removable SCSI 2
> cd0(ncr0:3:0): CD-ROM 
> cd0(ncr0:3:0): 10.0 MB/s (100 ns, offset 15)
> can't get the size
> (ncr0:4:0): extraneous data discarded.
> (ncr0:4:0): COMMAND FAILED (9 80) @f03e2800.
> (ncr0:4:0): extraneous data discarded.
> (ncr0:4:0): COMMAND FAILED (9 80) @f03e2800.
> (ncr0:4:0): extraneous data discarded.
> (ncr0:4:0): COMMAND FAILED (9 80) @f03e2800.
> (ncr0:4:0): "WANGTEK 5525ES SCSI REV1" type 1 removable SCSI 2
> st0(ncr0:4:0): Sequential-Access 
> st0(ncr0:4:0): asynchronous.
> density code 0x0, 
> st0(ncr0:4:0): extraneous data discarded.
> 
> st0(ncr0:4:0): COMMAND FAILED (9 80) @f058f000.
> 
> st0(ncr0:4:0): extraneous data discarded.
> 
> st0(ncr0:4:0): COMMAND FAILED (9 80) @f058f000.
> 
> st0(ncr0:4:0): extraneous data discarded.
> 
> st0(ncr0:4:0): COMMAND FAILED (9 80) @f058f000.
>  drive empty

Doug White                               
Internet:  dwhite@resnet.uoregon.edu    | FreeBSD: The Power to Serve
http://gladstone.uoregon.edu/~dwhite    | www.freebsd.org


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