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Date:      Fri, 1 Mar 2002 18:06:03 +0200
From:      "Rodger Duffett" <rodger@its.uct.ac.za>
To:        <freebsd-scsi@freebsd.org>
Subject:   Wired scsi devices
Message-ID:  <007a01c1c13a$fce5d830$5b1a9e89@pcbytehaven>

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Helo,

I am unable to get wired scsi devices to work. Problem description is the
same as that posted to this list in Sep 2001. I applied the patch describ by
Justin Gibbs, however as for the original poster it did not work.

General problem description: After recompiling the kernel with wired devices
duplicate wired devices are listed. The kernel then loads the devices that
are supposed to be wired at higher device numbers. e.g. If  da0 da1 da2 da3
are wired in the kernel to scbus0 target 108 unit 0 and unit xxx etc they
are detected during boot as da4 and da5. da0 is also deteced but da6 not.

It is important for this install to use wired devices as all the drives are
mounted from a SAN. The LUNS defined on the SAN may change with time so for
an added measure of safety I wish to wire a particular device to its
associated LUN.

I hope there is a simple solution :-)

Cheerio
Rodger
University of Cape Town

Some specifics:
4.5-RELEASE-p1

snip from conf
device          ispfw           # Qlogic firmware driver
device          isp             # Qlogic family
device          isp0
# SCSI peripherals
device          scbus           # SCSI bus (required)
device          scbus0 at isp0
device          da0 at scbus0 target 108 unit 3
device          da1 at scbus0 target 108 unit 101
device          da2 at scbus0 target 108 unit 102
device          da3 at scbus0 target 108 unit 512
device          da              # Disk
device          sa              # Sequential Access (tape etc)
device          cd              # CD
device          pass            # Passthrough device (direct SCSI access)

snip from logs showing error
Mar  1 14:05:11 eowyn /kernel: acd0: CDROM <SAMSUNG CD-ROM SN-124> at
ata0-master using PIO4
Mar  1 14:05:11 eowyn /kernel: (da0:isp0:0:108:0): Duplicate Wired Device
entry!
Mar  1 14:05:11 eowyn /kernel: (da0:isp0:0:108:0): Second device (da device
at scbus0 target 108 lun 1) will not be wired
Mar  1 14:05:11 eowyn /kernel: (da0:isp0:0:108:0): Duplicate Wired Device
entry!
Mar  1 14:05:11 eowyn /kernel: (da0:isp0:0:108:0): Second device (da device
at scbus0 target 108 lun 3) will not be wired
Mar  1 14:05:11 eowyn /kernel: da0 at isp0 bus 0 target 108 lun 0
Mar  1 14:05:11 eowyn /kernel: da0: <HP A6189A      -SUN HP13> Fixed Direct
Access SCSI-3 device
Mar  1 14:05:11 eowyn /kernel: da0: 100.000MB/s transfers, Tagged Queueing
Enabled
Mar  1 14:05:11 eowyn /kernel: da0: 20MB (40960 512 byte sectors: 64H 32S/T
20C)
Mar  1 14:05:11 eowyn /kernel: Mounting root from ufs:/dev/da2s1a
Mar  1 14:05:11 eowyn /kernel: da4 at isp0 bus 0 target 108 lun 1
Mar  1 14:05:11 eowyn /kernel: da4: <HP A6189A      -SUN HP13> Fixed Direct
Access SCSI-3 device
Mar  1 14:05:11 eowyn /kernel: da4: 100.000MB/s transfers, Tagged Queueing
Enabled
Mar  1 14:05:11 eowyn /kernel: da4: 204800MB (419430400 512 byte sectors:
255H 63S/T 26108C)
Mar  1 14:05:11 eowyn /kernel: da5 at isp0 bus 0 target 108 lun 3
Mar  1 14:05:11 eowyn /kernel: da5: <HP A6189A      -SUN HP13> Fixed Direct
Access SCSI-3 device
Mar  1 14:05:11 eowyn /kernel: da5: 100.000MB/s transfers, Tagged Queueing
Enabled
Mar  1 14:05:11 eowyn /kernel: da5: 10240MB (20971520 512 byte sectors: 255H
63S/T 1305C)




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