Solaris Express SAN Configuration and Multipathing Guide

ProcedureTo Enable Multipathing

Perform the following steps to enable multipathing on all multipath-capable devices on SPARC or x86/x64 based systems. If you want to enable multipathing only on specific FC or SAS HBA ports, refer to Enabling or Disabling Multipathing on a Per-Port Basis.

The multipathing software automatically recognizes Sun supported devices. If you want to enable multipathing on third-party devices, add entries to the /kernel/drv/scsi_vhci.conf file as described by Device Name Change Considerations in Multipathing Considerations.

  1. Run the stmsboot -e command:


    # 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.


  2. (Optional) After the reboot, if necessary, configure your applications to use new device names as described by Device Name Change Considerations in Multipathing Considerations.