Date: 13 Sep 1997 17:27:15 +0200 From: dag-erli@ifi.uio.no (Dag-Erling Coidan Smørgrav) To: scsi@freebsd.org Subject: XP34550S / AHA2940UW refuses wide negotiation Message-ID: <xzphgbpqlnw.fsf@hall.ifi.uio.no>
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I recently upgraded my Adaptec 2940 to a 2940UW to take full advantage of my Quantum Atlas II. However, it seems that both the adapter and the disk are refusing wide negotiation. I am using both internal connectors on the SCSI adapter, with the Atlas on the wide bus and a Conner 1080S and a Toshiba 3801 on the narrow bus. "Enable wide negotiation" is set to "Yes" (default) for all devices in the 2940UW BIOS setup. Relevant information from dmesg follows: FreeBSD 2.2.1-RELEASE #0: Sun Aug 10 17:01:55 CEST 1997 [...] ahc0 <Adaptec 2940 Ultra SCSI host adapter> rev 0 int a irq 9 on pci0:10 ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs ahc0:A:0: refuses WIDE negotiation. Using 8bit transfers (ahc0:0:0): "CONNER CFP1080S 4649" type 0 fixed SCSI 2 sd0(ahc0:0:0): Direct-Access 1030MB (2110812 512 byte sectors) (ahc0:2:0): "QUANTUM XP34550W LXY1" type 0 fixed SCSI 2 sd1(ahc0:2:0): Direct-Access 4341MB (8890760 512 byte sectors) ahc0:A:5: refuses WIDE negotiation. Using 8bit transfers (ahc0:5:0): "TOSHIBA CD-ROM XM-3801TA 1047" type 5 removable SCSI 2 cd0(ahc0:5:0): CD-ROM can't get the size Is this problem caused by the disk, the adapter or the software? Will upgrading to 2.2.2-RELEASE fix it? Is it caused by using narrow and wide devices on the same adapter? Why is the Atlas II reported as a SCSI 2 device rather than SCSI 3? -- * Finrod (INTJ) * Unix weenie * dag-erli@ifi.uio.no * cellular +47-92835919 * RFC1123: "Be liberal in what you accept, and conservative in what you send"
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