I have two T2000 servers connected to sun storage array StorEdge 3310 as follows:

Code:

CH0 connected to SNGL BUS CONF 
CH1 connected to HOST1
 CH2 open 
CH3 connected to HOST2
 DUAL BUS CONF open

I have created some luns which I can mount and use on HOST1 but from HOST2 I cant see them
from OK prompt or from format utility. I do see them from sccli utility on HOST2 .
iam runnng solaris 10u11 with latest patches applied and both systems are identical.

the channel assignment on the storage array is as follows :

Chl Mode PID SID
0 Drive 6 7
1 Host 0 NA
2 Drive 6 7
3 Host 0 NA
6(c) RCCOM NA NA

this is what i get on HOST1
---------------------------

Code:

scsi-initiator-id 5 (value) 7 (default)
 
ok probe-scsi-all
 /pci@7c0/pci@0/pci@8/pci@0/LSILogic,scsi@8,1
 MPT Version 1.02, Firmware Version 1.03.39.00
 Initiator ID is 7
 /pci@7c0/pci@0/pci@8/pci@0/LSILogic,scsi@8
 MPT Version 1.02, Firmware Version 1.03.39.00
 Initiator ID is 7
 Target 0
 Unit 0 Disk SUN StorEdge 3310 423C 635406336 Blocks, 325 GB
 Unit 1 Disk SUN StorEdge 3310 423C 364544000 Blocks, 186 GB
 Unit 2 Disk SUN StorEdge 3310 423C 142850560 Blocks, 73 GB

this is what i get on HOST2
---------------------------

Code:

scsi-initiator-id 4 (value) 7 (default)
 
ok probe-scsi-all
 /pci@7c0/pci@0/pci@8/pci@0/LSILogic,scsi@8,1
 MPT Version 1.02, Firmware Version 1.03.39.00
 Initiator ID is 7
 /pci@7c0/pci@0/pci@8/pci@0/LSILogic,scsi@8
 MPT Version 1.02, Firmware Version 1.03.39.00
 Initiator ID is 7
 Target 0
 Unit 0 Device type d SUN StorEdge 3310 423C <<< why iam getting a host here instead of disks?

NOTE: i just swapped the SCSI cables between HOST1 and HOST2 and now HOST2 can see all the LUNs and HOST1 can't which tells me that hardware and software wise everything is ok on HOST2
it has to do with some SCSI channel mappings and conflict , need help in debugging this .
Basically any host connected to CH3 is not seeing the disks. it does see the controller though .

---------- Post updated at 11:47 AM ---------- Previous update was at 10:54 AM ----------

I found the problem .
The mapping for luns for CH3 were missing . after adding the mapping both hosts can see the luns now.