SUMMARY: Problems configuring MPxIO

Thanks to everyone who replied to my question.
Neil Martin and Rob De Langhe solved the problem for me.

Neil suggested this wiki:
http://wikis.sun.com/display/StorageDev/Symmetric+Multipath+Support+for+Solar
is

and Rob said:
    likely the typical error in the "/kernel/drv/scsi_vhci.conf" file...
    To enable on Solaris-10 :


    edit the file "/kernel/drv/fp.conf" and sure the following entry is set :
    mpxio-disable=no

    edit the file "/kernel/drv/scsi_vhci.conf" and make sure the following
entries are set :
    load-balance="round-robin";
    auto-failback="enable";
    device-type-scsi-options-list =
    "EMC     SYMMETRIX", "symmetric-option";
    symmetric-option = 0x1000000;
    Make sure you put exactly the correct number of space between "EMC" and
"SYMMETRIX", or it does not recognize the disks as to be considered by MPxIO

So it appears that just running the stmsboot command is not enough.  It's
necessary to manually add the third party device id in the
/kernel/drv/scsi_vhci.conf file.

The original question:
I'm trying to configure multipathing on some SAN storage but it appears that
it's not being recognised as a dual path system.
Devices 5, 6 & 7 below are dual pathed with devices 9, 10 & 11, each about
67G.
System is Solaris 10 10/08 (update 6).
I was expecting to see the 6 devices appear as 3.

        I run:
          # stmsboot -D fp -e
        then reboot

          # stmsboot -L
        stmsboot: MPxIO is not enabled

        Can anyone suggest why stmsboot is not configuring the multipathing?

        AVAILABLE DISK SELECTIONS:
               0. c1t0d0 <SEAGATE-ST914603SSUN146G-0868-136.73GB>
                  /pci@0/pci@0/pci@2/scsi@0/sd@0,0
               1. c1t1d0 <SEAGATE-ST914603SSUN146G-0868-136.73GB>
                  /pci@0/pci@0/pci@2/scsi@0/sd@1,0
               2. c1t2d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
                  /pci@0/pci@0/pci@2/scsi@0/sd@2,0
               3. c1t3d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
                  /pci@0/pci@0/pci@2/scsi@0/sd@3,0
               4. c2t5006048452A58408d0 <EMC-SYMMETRIX-5771 cyl 1 alt 2 hd 15
sec 128>
                  /pci@0/pci@0/pci@8/pci@0/pci@8/SUNW,emlxs@0/fp@0,0/ssd@w500
6048452a58408,0
               5. c2t5006048452A58408d27 <EMC-SYMMETRIX-5771 cyl 36826 alt 2
hd 30 sec 128>
                  /pci@0/pci@0/pci@8/pci@0/pci@8/SUNW,emlxs@0/fp@0,0/ssd@w500
6048452a58408,1b
               6. c2t5006048452A58408d28 <EMC-SYMMETRIX-5771 cyl 36826 alt 2
hd 30 sec 128>
                  /pci@0/pci@0/pci@8/pci@0/pci@8/SUNW,emlxs@0/fp@0,0/ssd@w500
6048452a58408,1c
               7. c2t5006048452A58408d29 <EMC-SYMMETRIX-5771 cyl 36826 alt 2
hd 30 sec 128>
                  /pci@0/pci@0/pci@8/pci@0/pci@8/SUNW,emlxs@0/fp@0,0/ssd@w500
6048452a58408,1d
               8. c4t5006048452A58407d0 <EMC-SYMMETRIX-5771 cyl 1 alt 2 hd 15
sec 128>
                  /pci@0/pci@0/pci@9/SUNW,emlxs@0/fp@0,0/ssd@w5006048452a5840
7,0
               9. c4t5006048452A58407d27 <EMC-SYMMETRIX-5771 cyl 36826 alt 2
hd 30 sec 128>
                  /pci@0/pci@0/pci@9/SUNW,emlxs@0/fp@0,0/ssd@w5006048452a5840
7,1b
              10. c4t5006048452A58407d28 <EMC-SYMMETRIX-5771 cyl 36826 alt 2
hd 30 sec 128>
                  /pci@0/pci@0/pci@9/SUNW,emlxs@0/fp@0,0/ssd@w5006048452a5840
7,1c
              11. c4t5006048452A58407d29 <EMC-SYMMETRIX-5771 cyl 36826 alt 2
hd 30 sec 128>
                  /pci@0/pci@0/pci@9/SUNW,emlxs@0/fp@0,0/ssd@w5006048452a5840
7,1d



        regards,
        John.
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