[1426] in linux-scsi channel archive
wide-scsi voes
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Sat Feb 15 06:45:47 1997
Date: Sat, 15 Feb 1997 12:43:35 +0100 (MET)
From: Mikael Abrahamsson <mike@uplift.sparta.lu.se>
To: linux-scsi@vger.rutgers.edu
aic7xxx: Resetting the SCSI bus...done.
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 4.0/3.2/4.0
scsi : 1 host.
scsi0: Scanning channel A for devices.
scsi0: Target 0, channel A, now synchronous at 10.0MHz, offset 15.
scsi0: Received MSG_WDTR, Target 0, channel A needwdtr(0xff1e).
scsi0: Will send WDTR!!
scsi0: Target 0, channel A, now synchronous at 10.0MHz, offset 15.
aic7xxx: Sending SDTR!!
Vendor: COMPAQ Model: ST15150W Rev: 6213
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
scsi0: Received MSG_WDTR, Target 1, channel A needwdtr(0xff1e).
scsi0: Received MSG_WDTR, Target 1, channel A needwdtr(0xff1c).
scsi0: Will send WDTR!!
scsi0: Target 1, channel A, using 16 bit transfers.
scsi0: Target 1, channel A, now synchronous at 10.0MHz, offset 8.
aic7xxx: Sending SDTR!!
Vendor: COMPAQ Model: ST15150W Rev: 6213
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 1, lun 0
I have disabled wide initiation on my 2940UW for id 0 because if I do, 90%
of the time it doesnt write the "Will send WDTR!!" and then it doesnt work
when it tries to load the partition table off the disk. I boot off of it,
so it works just perfectly to boot up until it initiates the widescsi
transfers.
It also says something about "disk 0 has sector size of 0 bytes, defaults
to 512" or something like that, when it doesnt work. I guess this is part
of the problem.
This problem started occuring 2-4 days ago, but I havent changed my
hardware anything the past 2-3 months. I did install redhat 4.1 which
means I changed compiler from gcc 2.7.0 to 2.7.2.1, but I did reinstall
the kernel and compiled in 2940-support into the kernel instead of loading
it at boot-time, just like I have always had it.
Anyone know what my problems can be? I changed the order the cable was
attached to the drives with and it worked once (it sent WDTR and went
wide and I booted singleuser) but when I tried to reboot it the same
problem occured again.
Could it be that there is some kind of delay after it resets the scsi bus
and until it tries to access the disks, and that this delay is just a tad
too short? It's set to 15 seconds as of now, shouldnt this be enough? Is
there a way to force the driver to send WDTR (whatever that is) to drive
0? I dont have the error-logs here, but as far as I remember it doesnt
receive the:
scsi0: Received MSG_WDTR, Target 0, channel A needwdtr(0xff1e).
when it doesnt work.
Thanks for any help.
PS: Some system info:
Feb 14 18:55:31 uplift kernel: aic7xxx: Enabling wide channel of AHA-2940
Ultra-Wide.
Feb 14 18:55:31 uplift kernel: AHA-2940 Ultra-WIDE (PCI-bus), I/O 0x6000,
Mem 0xe2000000:
Feb 14 18:55:31 uplift kernel: irq 12
Feb 14 18:55:31 uplift kernel: bus release time 40 bclks
Feb 14 18:55:31 uplift kernel: data fifo threshold 100
Feb 14 18:55:31 uplift kernel: SCSI CHANNEL A:
Feb 14 18:55:31 uplift kernel: scsi id 7
Feb 14 18:55:31 uplift kernel: scsi selection timeout 256 ms
Feb 14 18:55:31 uplift kernel: scsi bus reset at power-on enabled
Feb 14 18:55:31 uplift kernel: scsi bus parity enabled
Feb 14 18:55:31 uplift kernel: scsi bus termination (low byte)
disabled
Feb 14 18:55:31 uplift kernel: scsi bus termination (high byte)
enabled
Feb 14 18:55:31 uplift kernel: aic7xxx: Resetting the SCSI bus...done.
Feb 14 18:55:31 uplift kernel: scsi0 : Adaptec AHA274x/284x/294x
(EISA/VLB/PCI-Fast SCSI) 4.0/3.2/4.0
Feb 14 18:55:31 uplift kernel: scsi : 1 host.
Feb 14 18:55:31 uplift kernel: scsi0: Target 0, channel A, now synchronous
at 10.0MHz, offset 15.
Feb 14 18:55:31 uplift kernel: scsi0: Target 0, channel A, now synchronous
at 10.0MHz, offset 15.
Feb 14 18:55:31 uplift kernel: aic7xxx: Sending SDTR!!
Feb 14 18:55:31 uplift kernel: Vendor: COMPAQ Model: ST15150W
Rev: 6213
Feb 14 18:55:31 uplift kernel: Type: Direct-Access
ANSI SCSI revision: 02
Feb 14 18:55:31 uplift kernel: Detected scsi disk sda at scsi0, channel 0,
id 0, lun 0
Feb 14 18:55:31 uplift kernel: scsi0: Target 1, channel A, now synchronous
at 10.0MHz, offset 8.
Feb 14 18:55:31 uplift kernel: aic7xxx: Sending SDTR!!
Feb 14 18:55:31 uplift kernel: Vendor: COMPAQ Model: ST15150W
Rev: 6213
Feb 14 18:55:31 uplift kernel: Type: Direct-Access
ANSI SCSI revision: 02
Feb 14 18:55:31 uplift kernel: Detected scsi disk sdb at scsi0, channel 0,
id 1, lun 0
Feb 14 18:55:31 uplift kernel: scsi0: Target 2, channel A, refusing WIDE
negotiation; using 8 bit transfers.
Feb 14 18:55:31 uplift kernel: scsi0: Target 2, channel A, now synchronous
at 4.0MHz, offset 11.
Feb 14 18:55:31 uplift kernel: Vendor: EXABYTE Model: EXB-8500SMBANXH1
Rev: 05E0
Feb 14 18:55:31 uplift kernel: Type: Sequential-Access
ANSI SCSI revision: 02
Feb 14 18:55:31 uplift kernel: scsi0: Target 3, channel A, now synchronous
at 10.0MHz, offset 8.
Feb 14 18:55:31 uplift kernel: Vendor: Quantum Model: XP32150W
Rev: L912
Feb 14 18:55:31 uplift kernel: Type: Direct-Access
ANSI SCSI revision: 02
Feb 14 18:55:31 uplift kernel: Detected scsi disk sdc at scsi0, channel 0,
id 3, lun 0
Feb 14 18:55:31 uplift kernel: scsi0: Target 6, channel A, refusing
synchronous negotiation; using asynchronous transfers.
Feb 14 18:55:31 uplift kernel: Vendor: MEDIAVIS Model: CDR-H93MV
Rev: 1.41
Feb 14 18:55:31 uplift kernel: Type: CD-ROM
ANSI SCSI revision: 02
Feb 14 18:55:31 uplift kernel: scsi : detected 3 SCSI disks total.
Feb 14 18:55:31 uplift kernel: scsi0: Target 0, channel A, now synchronous
at 10.0MHz, offset 8.
Feb 14 18:55:31 uplift kernel: aic7xxx: Sending SDTR!!
Feb 14 18:55:31 uplift kernel: SCSI device sda: hdwr sector= 512 bytes.
Sectors= 8386000 [4094 MB] [4.1 GB]
Feb 14 18:55:31 uplift kernel: SCSI device sdb: hdwr sector= 512 bytes.
Sectors= 8386000 [4094 MB] [4.1 GB]
Feb 14 18:55:31 uplift kernel: SCSI device sdc: hdwr sector= 512 bytes.
Sectors= 4406960 [2151 MB] [2.2 GB]
Feb 14 18:55:31 uplift kernel: Partition check:
Feb 14 18:55:31 uplift kernel: sda: sda1 sda2 sda3 < sda5 >
Feb 14 18:55:31 uplift kernel: sdb: sdb1 sdb2
Feb 14 18:55:31 uplift kernel: sdc: sdc1 sdc2
