JavaScript is required to for searching.
Skip Navigation Links
Exit Print View
Oracle Solaris 11.1 Administration: SAN Configuration and Multipathing     Oracle Solaris 11.1 Information Library
search filter icon
search icon

Document Information

Preface

1.  Solaris I/0 Multipathing Overview

2.  Fibre Channel Multipathing Configuration Overview

3.  Configuring Solaris I/O Multipathing Features

4.  Administering Multipathing Devices

Administering Multipathing Devices

Displaying Multipathing Support Information

How to Display Multipathing Support Information

How to Display Properties of a Specific Initiator Port

How to Display Specific LU Information

How to Display All LUs Associated With a Specific Target Port

How to Display a LU With a Specific Name

Configuring Automatic Failback for Multipathing Support

How to Configure Automatic Failback for Specific Multipathing Support

How to Fail Over a LU

How to Enable a LU Path

How to Disable a LU Path

5.  Configuring Fabric-Connected Devices

6.  Configuring Solaris iSCSI Initiators

7.  Configuring Virtual Fibre Channel Ports

8.  Configuring FCoE Ports

9.  Configuring SAS Domains

10.  Configuring IPFC SAN Devices

11.  Booting the Oracle Solaris OS From Fibre Channel Devices on x86 Based Systems

12.  Persistent Binding for Tape Devices

A.  Manual Configuration for Fabric-Connected Devices

B.  Supported FC-HBA API

C.  Troubleshooting Multipathed Device Problems

Index

Administering Multipathing Devices

You determine and configure Solaris OS multipathing support by using mpathadm commands. The mpathadm command enables multipathing administration through the ANSI standard Multipath Management API. The terms used in this chapter to denote a path, initiator port, target port, and LU are consistent with the T10 specification.

Perform the following tasks to administer multipathing devices.

Displaying Multipathing Support Information

You can use the mpathadm command to display multipathing support information and also manage multipathing discovery. Multipathing support and property information is identified with the Multipath Management API plug-in library name, which is displayed by using the mpathadm command.

How to Display Multipathing Support Information

  1. Become an administrator.
  2. Identify the multipathing support on your system.
    # mpathadm list mpath-support
    mpath-support: libmpscsi_vhci.so
  3. Display the multipathing support properties for a specified mpath support name.
    # mpathadm show mpath-support libmpscsi_vhci.so
    mpath-support:  libmpscsi_vhci.so
            Vendor:  Sun Microsystems
            Driver Name:  scsi_vhci
            Default Load Balance:  round-robin
            Supported Load Balance Types:  
                    round-robin
                    logical-block
            Allows To Activate Target Port Group Access:  yes
            Allows Path Override:  no
            Supported Auto Failback Config:  yes
            Auto Failback:  on
            Failback Polling Rate (current/max):  0/0
            Supported Auto Probing Config:  0
            Auto Probing:  NA
            Probing Polling Rate (current/max):  NA/NA
            Supported Devices:
                    Vendor:  SUN     
                    Product:  T300            
                    Revision:  
                    Supported Load Balance Types:
                            round-robin
    
                    Vendor:  SUN     
                    Product:  T4              
                    Revision:  
                    Supported Load Balance Types:
                            round-robin
    .
    .
    .

    The command output also shows a list of device products that is supported by the multipathing support software. The multipathing support libmpscsi_vhci.so library file supports T10 target port group compliant devices by default.

How to Display Properties of a Specific Initiator Port

The following steps describe how to display the properties of an initiator port.

  1. List the initiator ports.
    # mpathadm list initiator-port
    Initiator Port:  iqn.1986-03.com.sun:01:ffffffffffff.4e94f9bd,4000002a00ff
    Initiator Port:  210100e08ba41feb
    Initiator Port:  210000e08b841feb
  2. Display the specific initiator port's properties.
    # mpathadm show initiator-port 2000000173018713
    Initiator Port:  210100e08ba41feb
            Transport Type:  Fibre Channel
            OS Device File:  /devices/pci@1,0/pci1022,7450@1/pci1077,141@2,1/fp@0,0

How to Display Specific LU Information

Display the list of LUs, along with the properties for each LUN by using the mpathadm command. The displayed list of LUs contain names that in turn can be used to display the properties of a particular LU.

  1. Display a list of multipathed LUs.
    # mpathadm list lu
            /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF44E233FCFd0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800026D63A0000A4974E23424Ed0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    .
    .
    .
  2. Display configuration information about a specific LU using the LU name from the list.
    # mpathadm show lu /dev/rdsk/c4t60003BA27D2120004204AC2B000DAB00d0s2
            mpath-support:  libmpscsi_vhci.so
            Vendor:  SUN     
            Product:  Sun Storage NAS
            Revision:  1.0 
            Name Type:  unknown type
            Name:  600144f08069703400004e828ee10004
            Asymmetric:  yes
            Current Load Balance:  round-robin
            Logical Unit Group ID:  NA
            Auto Failback:  on
            Auto Probing:  NA
    
            Paths:  
                    Initiator Port Name:  210100e08ba41feb
                    Target Port Name:  2100001b329b6c3f
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210100e08ba41feb
                    Target Port Name:  2101001b32bb6c3f
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210100e08ba41feb
                    Target Port Name:  2100001b329b793c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    .
    .
    .
    
            Target Port Groups:  
                    ID:  0
                    Explicit Failover:  no
                    Access State:  active optimized
                    Target Ports:
                            Name:  2100001b329b6c3f
                            Relative ID:  1
    
                            Name:  2101001b32bb6c3f
                            Relative ID:  2
    
                    ID:  1
                    Explicit Failover:  no
                    Access State:  standby
                    Target Ports:
                            Name:  2100001b329b793c
                            Relative ID:  257
    
                            Name:  2101001b32bb793c
                            Relative ID:  256

How to Display All LUs Associated With a Specific Target Port

Use the steps below to display paths through a target port.

  1. Display a list of LUs.
    # mpathadm list lu
           /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    .
    .
    .
  2. Display specific LU information to determine the target ports.
    # mpathadm show lu /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
    Logical Unit:  /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
            mpath-support:  libmpscsi_vhci.so
            Vendor:  SUN     
            Product:  CSM200_R        
            Revision:  0660
            Name Type:  unknown type
            Name:  600a0b800029065c00007cf54e234013
            Asymmetric:  yes
            Current Load Balance:  round-robin
            Logical Unit Group ID:  NA
            Auto Failback:  on
            Auto Probing:  NA
    
            Paths:  
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    .
    .
    .
    
            Target Port Groups:  
                    ID:  4
                    Explicit Failover:  yes
                    Access State:  standby
                    Target Ports:
                            Name:  200800a0b826d63b
                            Relative ID:  0
    
                            Name:  200800a0b826d63c
                            Relative ID:  0
    
                    ID:  14
                    Explicit Failover:  yes
                    Access State:  active
                    Target Ports:
                            Name:  200900a0b826d63b
                            Relative ID:  0
    
                            Name:  200900a0b826d63c
                            Relative ID:  0
  3. Display the specific target port information.
    # mpathadm list lu -t 20030003ba27d212
    mpath-support:  libmpscsi_vhci.so
            /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    mpath-support:  libmpscsi_vhci.so
            /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    mpath-support:  libmpscsi_vhci.so
            /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    mpath-support:  libmpscsi_vhci.so
            /dev/rdsk/c0t600A0B800029065C00007CF44E233FCFd0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    .
    .
    .

How to Display a LU With a Specific Name

Display detailed information on multipathed LUs, including path and target port group information. Note that the name property in the information represents the identifier for this LU, derived from the hardware, and used by this system. If the name is derived from SCSI Inquiry Vital Product Data (VPD) page 83h, the name type property represents an associated identifier type defined by the SCSI standards.

  1. Display a list of multipathed LUs.
    # mpathadm list lu
            /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF44E233FCFd0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    .
    .
    .
  2. Display a selected LU's configuration information.
    # mpathadm show lu /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
    Logical Unit:  /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
            mpath-support:  libmpscsi_vhci.so
            Vendor:  SUN     
            Product:  CSM200_R        
            Revision:  0660
            Name Type:  unknown type
            Name:  600a0b800026d63a0000a4994e2342d4
            Asymmetric:  yes
            Current Load Balance:  round-robin
            Logical Unit Group ID:  NA
            Auto Failback:  on
            Auto Probing:  NA
    
            Paths:  
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
            Target Port Groups:  
                    ID:  3
                    Explicit Failover:  yes
                    Access State:  active
                    Target Ports:
                            Name:  200800a0b826d63b
                            Relative ID:  0
    
                            Name:  200800a0b826d63c
                            Relative ID:  0
    
                    ID:  13
                    Explicit Failover:  yes
                    Access State:  standby
                    Target Ports:
                            Name:  200900a0b826d63b
                            Relative ID:  0
    
                            Name:  200900a0b826d63c
                            Relative ID:  0
  3. Display the selected LU information.
    # mpathadm list lu -n 600a0b800026d63a0000a4994e2342d4
    mpath-support:  libmpscsi_vhci.so
            /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                    Total Path Count: 4
                    Operational Path Count: 4

Configuring Automatic Failback for Multipathing Support

Symmetrical devices can provideautomatic failback to a possible optimal path. If a failover occurs on the initial path, the standby path becomes the new online path. Usually the standby path is a suboptimal path. When automatic failback is enabled, the initial path comes back online and failover to the initial path automatically occurs.

How to Configure Automatic Failback for Specific Multipathing Support

  1. Become an administrator.
  2. Display the supported multipath driver information.
    # mpathadm list mpath-support
    mpath-support: libmpscsi_vhci.so
  3. Enable automatic failback support for the supported multipath driver.
    # mpathadm modify mpath-support -a on libmpscsi_vhci.so
     
  4. Confirm the configuration change.
    # mpathadm show mpath-support libmpscsi_vhci.so
    mpath-support:  libmpscsi_vhci.so
            Vendor:  Sun Microsystems
            Driver Name:  scsi_vhci
            Default Load Balance:  round-robin
            Supported Load Balance Types:  
                    round-robin
                    logical-block
            Allows To Activate Target Port Group Access:  yes
            Allows Path Override:  no
            Supported Auto Failback Config:  1
            Auto Failback:  on
            Failback Polling Rate (current/max):  0/0
            Supported Auto Probing Config:  0
            Auto Probing:  NA
            Probing Polling Rate (current/max):  NA/NA
            Supported Devices:
                    Vendor:  SUN     
                    Product:  T300            
                    Revision:  
                    Supported Load Balance Types:
                            round-robin
    
                    Vendor:  SUN     
                    Product:  T4              
                    Revision:  
                    Supported Load Balance Types:
                            round-robin
    .
    .
    .

    Note - The automatic display initiated by the mpathadm modify command setting is effective while the system is running. However, to keep the changed setting persistent, you must update the /etc/driver/drv/scsi_vhci.conf file. Refer to Configuring Automatic Failback.


How to Fail Over a LU

This operation is applicable only to devices in the following two categories:

  1. Display a list of multipathed LUs.
    # mpathadm list lu
            /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    .
    .
    .
  2. Display a specific LU's configuration information.
    # mpathadm show lu /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
    Logical Unit:  /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
            mpath-support:  libmpscsi_vhci.so
            Vendor:  SUN     
            Product:  CSM200_R        
            Revision:  0660
            Name Type:  unknown type
            Name:  600a0b800026d63a0000a4984e234298
            Asymmetric:  yes
            Current Load Balance:  round-robin
            Logical Unit Group ID:  NA
            Auto Failback:  on
            Auto Probing:  NA
    
            Paths:  
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
            Target Port Groups:  
                    ID:  5
                    Explicit Failover:  yes
                    Access State:  active
                    Target Ports:
                            Name:  200800a0b826d63b
                            Relative ID:  0
    
                            Name:  200800a0b826d63c
                            Relative ID:  0
    
                    ID:  15
                    Explicit Failover:  yes
                    Access State:  standby
                    Target Ports:
                            Name:  200900a0b826d63b
                            Relative ID:  0
    
                            Name:  200900a0b826d63c
                            Relative ID:  0
  3. Manually force a LU failover.
    # mpathadm failover lu /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2

    If this operation is successful, the access state of the device's target port groups changes as a result of the logical unit failover.

  4. Confirm the access state change.
    # mpathadm show lu /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
    Logical Unit:  /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
            mpath-support:  libmpscsi_vhci.so
            Vendor:  SUN     
            Product:  CSM200_R        
            Revision:  0660
            Name Type:  unknown type
            Name:  600a0b800026d63a0000a4984e234298
            Asymmetric:  yes
            Current Load Balance:  round-robin
            Logical Unit Group ID:  NA
            Auto Failback:  on
            Auto Probing:  NA
    
            Paths:  
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
            Target Port Groups:  
                    ID:  5
                    Explicit Failover:  yes
                    Access State:  standby
                    Target Ports:
                            Name:  200800a0b826d63b
                            Relative ID:  0
    
                            Name:  200800a0b826d63c
                            Relative ID:  0
    
                    ID:  15
                    Explicit Failover:  yes
                    Access State:  active
                    Target Ports:
                            Name:  200900a0b826d63b
                            Relative ID:  0
    
                            Name:  200900a0b826d63c
                            Relative ID:  0

How to Enable a LU Path

If the path to a LU is disabled, the enable command changes the path back to enabled. The full path must be specified using the initiator port name, target port name, and the LU. To verify the change, run the show command for the logical unit.

  1. Display a list of multipathed LUs.
    # mpathadm list lu
            /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF44E233FCFd0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    .
    .
    .
  2. Display the selected LU's configuration information.
    # mpathadm show lu 
    Logical Unit:  /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
            mpath-support:  libmpscsi_vhci.so
            Vendor:  SUN     
            Product:  CSM200_R        
            Revision:  0660
            Name Type:  unknown type
            Name:  600a0b800026d63a0000a4984e234298
            Asymmetric:  yes
            Current Load Balance:  round-robin
            Logical Unit Group ID:  NA
            Auto Failback:  on
            Auto Probing:  NA
    
            Paths:  
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
            Target Port Groups:  
                    ID:  5
                    Explicit Failover:  yes
                    Access State:  standby
                    Target Ports:
                            Name:  200800a0b826d63b
                            Relative ID:  0
    
                            Name:  200800a0b826d63c
                            Relative ID:  0
    
                    ID:  15
                    Explicit Failover:  yes
                    Access State:  active
                    Target Ports:
                            Name:  200900a0b826d63b
                            Relative ID:  0
    
                            Name:  200900a0b826d63c
                            Relative ID:  0
  3. Enable the LU path.
    # mpathadm enable path -i 210000e08b841feb -t 200900a0b826d63b \ 
               -l /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2

How to Disable a LU Path

This operation makes the path unavailable for the LU, regardless of its operational state.


Note - The disabled state is not persistent across rebooting. If the path is operational before the next boot sequence, it is enabled by default. This operation is not allowed when the given path is the last operational path remaining.


  1. Display a list of multipathed LUs.
    # mpathadm list lu
            /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                    Total Path Count: 8
                    Operational Path Count: 8
            /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                    Total Path Count: 4
                    Operational Path Count: 4
            /dev/rdsk/c0t600A0B800029065C00007CF44E233FCFd0s2
                    Total Path Count: 4
                    Operational Path Count: 4
    .
    .
    .
  2. Display the specific LU's configuration information.
    # mpathadm show lu /dev/rdsk/c0t600A0B800029065C00007CF34E233F89d0s2
    Logical Unit:  /dev/rdsk/c0t600A0B800029065C00007CF34E233F89d0s2
            mpath-support:  libmpscsi_vhci.so
            Vendor:  SUN     
            Product:  CSM200_R        
            Revision:  0660
            Name Type:  unknown type
            Name:  600a0b800029065c00007cf34e233f89
            Asymmetric:  yes
            Current Load Balance:  round-robin
            Logical Unit Group ID:  NA
            Auto Failback:  on
            Auto Probing:  NA
    
            Paths:  
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63b
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200800a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
                    Initiator Port Name:  210000e08b841feb
                    Target Port Name:  200900a0b826d63c
                    Override Path:  NA
                    Path State:  OK
                    Disabled:  no
    
            Target Port Groups:  
                    ID:  8
                    Explicit Failover:  yes
                    Access State:  standby
                    Target Ports:
                            Name:  200800a0b826d63b
                            Relative ID:  0
    
                            Name:  200800a0b826d63c
                            Relative ID:  0
    
                    ID:  18
                    Explicit Failover:  yes
                    Access State:  active
                    Target Ports:
                            Name:  200900a0b826d63b
                            Relative ID:  0
    
                            Name:  200900a0b826d63c
                            Relative ID:  0
  3. Select an initiator port and a target port name.
  4. Disable the selected LU path.
    # mpathadm disable path -i 210000e08b841feb -t 200900a0b826d63b \
               -l /dev/rdsk/c0t600A0B800029065C00007CF34E233F89d0s2