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