[OpenIndiana-discuss] LSI 9211 and multipath

[Mark]

Has anyone tried multipath on a single lsi 9211-8i to a dual port 
backplane ?

I have the controler connected to a SM 847E26 and although I see two of 
every disk (before and after enabling multipath), it doesn't seem to be 
quite working.

The 9211 is using IR mode, so I can get the ses support.


stmsboot -L
stmsboot: No STMS devices have been found

mpathadm list initiator-port
Initiator Port:  w500605b0035b6420
Initiator Port:  w500605b0035b6420
Initiator Port:  iqn.1986-03.com.sun:01:6b3db0fbffff.4df8134d,4000002a00ff


format output:

AVAILABLE DISK SELECTIONS:
        0. c1t5000C5000A85BA8Ad0 <IBM-ESX-ST373455SS     -BA2D cyl 8921 
alt 2 hd 255 sec 63>
 
/pci at 0,0/pci8086,4027 at 7/pci8086,3500 at 0/pci8086,3510 at 0/pci1000,3020 at 0/iport at f/disk at w5000c5000a85ba8a,0
        1. c1t5000C5000A85D446d0 <IBM-ESX-ST373455SS     -BA2D cyl 8921 
alt 2 hd 255 sec 63>
 
/pci at 0,0/pci8086,4027 at 7/pci8086,3500 at 0/pci8086,3510 at 0/pci1000,3020 at 0/iport at f/disk at w5000c5000a85d446,0
        2. c2t5000C5000A85BA89d0 <IBM-ESX-ST373455SS     -BA2D cyl 8921 
alt 2 hd 255 sec 63>
 
/pci at 0,0/pci8086,4027 at 7/pci8086,3500 at 0/pci8086,3510 at 0/pci1000,3020 at 0/iport at f0/disk at w5000c5000a85ba89,0
        3. c2t5000C5000A85D445d0 <IBM-ESX-ST373455SS     -BA2D cyl 8921 
alt 2 hd 255 sec 63>
 
/pci at 0,0/pci8086,4027 at 7/pci8086,3500 at 0/pci8086,3510 at 0/pci1000,3020 at 0/iport at f0/disk at w5000c5000a85d445,0


So there are definitely two paths, via two different adapter ports, to 
each of the two disks installed.

I have tried turning on multipath in the controller, but no change.

One thing I'm not sure of is should the target port for a disk be the 
same for both paths?

disk, instance #1
         name='inquiry-serial-no' type=string items=1 dev=none
         value='3LQ3C44800009846NZ8H'
         name='target-port' type=string items=1
         value='w5000c5000a85d446'
disk, instance #3
         name='inquiry-serial-no' type=string items=1 dev=none
         value='3LQ3C44800009846NZ8H'
         name='target-port' type=string items=1
         value='w5000c5000a85d445'


Mark.