School of Hard Knox part 2.

If you use map several LUNS onto the same SCSI ID of
a 3310 device using firmware 4.13B, the 3310 will break down.
I can reproduce this at will, using QFS, with the following mcf file:

# mcf
#
# Generated by config api Wed Oct 12 12:37:11 2005
#
# Equipment Eq Eq Family Device Additional
# Identifier Ord Type Set State Parameters
#----------- --- ---- ------ ------ ----------
#
#
outbound 1 ma outbound on
/dev/dsk/c2t0d7s6 2 mm outbound on
/dev/dsk/c2t0d0s6 3 mr outbound on
/dev/dsk/c2t0d1s6 4 mr outbound on
/dev/dsk/c2t0d2s6 5 mr outbound on
/dev/dsk/c2t0d3s6 6 mr outbound on
#
#
inbound 7 ma inbound on
/dev/dsk/c2t0d6s6 8 mm inbound on
/dev/dsk/c2t0d4s6 9 mr inbound on

When the machine boots, the 3310 will eventually emit a bunch of messages and
the sever goes into limbo.

scsi: [ID 107833 kern.warning] WARNING: /pci@1c,600000/scsi@2,1/sd@0,7 (sd29):
Error for Command: read Error Level: Retryable
scsi: [ID 107833 kern.notice] Requested Block: 524292 Error Block: 524292
scsi: [ID 107833 kern.notice] Vendor: SUN Serial Number: 2CE8CEFC-07
scsi: [ID 107833 kern.notice] Sense Key: Unit Attention
scsi: [ID 107833 kern.notice] ASC: 0x29 (power on, reset, or bus reset occurred), ASCQ: 0x0, FRU: 0x0
scsi: [ID 107833 kern.warning] WARNING: /pci@1c,600000/scsi@2,1 (glm1):
MSGREJ not expected
genunix: [ID 408822 kern.info] NOTICE: glm1: fault detected in device; service still available
genunix: [ID 611667 kern.info] NOTICE: glm1: MSGREJ not expected
scsi: [ID 107833 kern.warning] WARNING: /pci@1c,600000/scsi@2,1 (glm1):
got SCSI bus reset
genunix: [ID 408822 kern.info] NOTICE: glm1: fault detected in device; service still available
genunix: [ID 611667 kern.info] NOTICE: glm1: got SCSI bus reset
scsi: [ID 107833 kern.warning] WARNING: /pci@1c,600000/scsi@2,1/sd@0,7 (sd29):
SCSI transport failed: reason 'reset': retrying command
scsi: [ID 107833 kern.warning] WARNING: /pci@1c,600000/scsi@2,1/sd@0,7 (sd29):
Error for Command: read Error Level: Retryable
scsi: [ID 107833 kern.notice] Requested Block: 524292 Error Block: 524292
scsi: [ID 107833 kern.notice] Vendor: SUN Serial Number: 2CE8CEFC-07
scsi: [ID 107833 kern.notice] Sense Key: Unit Attention
scsi: [ID 107833 kern.notice] ASC: 0x29 (power on, reset, or bus reset occurred), ASCQ: 0x0, FRU: 0x0
scsi: [ID 107833 kern.warning] WARNING: /pci@1c,600000/scsi@2,1 (glm1):
MSGREJ not expected
--
Fredrik Lundholm
dol @ ce.chalmers.se