How to Enable / Disable Multipathing Solaris 11 ?

How to Enable Multipathing

  1. Become an administrator.
  2. Confirm that the multipathing software package is installed.
    # pkg info system/storage/multipath-utilities
              Name: system/storage/multipath-utilities
           Summary: Solaris Multipathing CLI
       Description: Path Administration Utility for a Solaris Multipathing device
          Category: Applications/System Utilities
             State: Installed
         Publisher: solaris
           Version: 0.5.11
     Build Release: 5.11
            Branch: 0.175.0.0.0.0.0
    Packaging Date: Tue Sep 27 01:40:01 2011
              Size: 77.29 kB
              FMRI: pkg://solaris/system/storage/multipath-utilities@
    0.5.11,5.11-0.175.0.0.0.0.0:20110927T014001Z

    If not, install it.

    # pkg install system/storage/multipath-utilities
  3. Enable device multipathing.
    # stmsboot -e
    WARNING: stmsboot operates on each supported multipath-capable controller
                 detected in a host. In your system, these controllers are
    
        /devices/pci@780/pci@0/pci@8/SUNW,qlc@0/fp@0,0
        /devices/pci@780/pci@0/pci@8/SUNW,qlc@0,1/fp@0,0
        /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1
        /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1
        /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@2
        /devices/pci@7c0/pci@0/pci@9/LSILogic,sas@0
        /devices/pci@7c0/pci@0/pci@9/LSILogic,sas@0
    
        If you do NOT wish to operate on these controllers, please quit stmsboot
        and re-invoke with -D { fp | mpt } to specify which controllers you wish
        to modify your multipathing configuration for.
    
        Do you wish to continue? [y/n] (default: y) y
        Checking mpxio status for driver fp
        Checking mpxio status for driver mpt
        WARNING: This operation will require a reboot.
        Do you want to continue ? [y/n] (default: y) y
        The changes will come into effect after rebooting the system.
        Reboot the system now ? [y/n] (default: y) y

    Note – During the reboot, /etc/vfstab and the dump configuration are updated to reflect the device name changes.


How to Disable Multipathing

  1. Disable device multipathing.
    # stmsboot -d
    WARNING: stmsboot operates on each supported multipath-capable controller
                 detected in a host. In your system, these controllers are
    
        /devices/pci@780/pci@0/pci@8/SUNW,qlc@0/fp@0,0
        /devices/pci@780/pci@0/pci@8/SUNW,qlc@0,1/fp@0,0
        /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1
        /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1
        /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@2
        /devices/pci@7c0/pci@0/pci@9/LSILogic,sas@0
        /devices/pci@7c0/pci@0/pci@9/LSILogic,sas@0
    
        If you do NOT wish to operate on these controllers, please quit stmsboot
        and re-invoke with -D { fp | mpt } to specify which controllers you wish
        to modify your multipathing configuration for.
    
        Do you wish to continue? [y/n] (default: y) y
        Checking mpxio status for driver fp
        Checking mpxio status for driver mpt
        WARNING: This operation will require a reboot.
        Do you want to continue ? [y/n] (default: y) y
        The changes will come into effect after rebooting the system.
        Reboot the system now ? [y/n] (default: y) y

    Note – During the reboot, /etc/vfstab and the dump configuration are updated to reflect the device name changes.


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