Managing SAN Devices and I/O Multipathing in Oracle^® Solaris 11.4

Manual Configuration for Fibre Channel Devices

This appendix explains how to configure and unconfigure the fabric devices in the Oracle Solaris OS. It explains how the visible fabric devices on a host are detected and configured with and without enabling the multipathing software.

This appendix covers the following topics:

• Checking the Health of FC Devices

• Manually Configuring FC Devices

• Configuring Fabric Device Nodes

• Configuring Device Nodes Without Multipathing Enabled

• Configuring Device Nodes With Multipathing Enabled

• Unconfiguring Fabric Devices

Checking the Health of FC Devices

You can use the following commands to perform health checks on the devices in a SAN:

• Use the fmadm faulty command, which provides status information for resources that the Fault Manager currently associated with a fault, defect, or alert. If the fmadm faulty command does not throw any output, it means there are no faulty devices. You can also use the fmadm command to know the following configuration information:

  • View the set of diagnosis engines and agents that are currently participating in fault management.

  • View the list of system components that have been diagnosed as associated with a fault, defect, or alert.

  For more information about resolving faulty devices, see Resolving Faulty Devices in Managing Devices in Oracle Solaris 11.4.

  For more information, see the fmadm(8) man page.

• Use the zpool status zpool-name command, which displays the detailed health status about the specified pool. If no pool is specified, then the status of each pool in the system is displayed. For example:

  # zpool status test_pool
    pool: test_pool
   state: ONLINE
    scan: none requested
  config:
  
          NAME                       STATE     READ WRITE CKSUM
          test_pool                  ONLINE       0     0     0
            mirror-0                 ONLINE       0     0     0
              c0t5000CCA00ABBAA9Cd0  ONLINE       0     0     0
              c0t5000CCA00ABCE8DCd0  ONLINE       0     0     0
  
  errors: No known data errors

• Use the mpathadm show lu logical-unit command, which provides the configuration information about the specified LU.

  # mpathadm show lu /dev/rdsk/c0t5000CCA00ABBAA9Cd0
  Logical Unit:  /dev/rdsk/c0t5000CCA00ABBAA9Cd0s2
          mpath-support:  libmpscsi_vhci.so
          Vendor:  HITACHI
          Product:  H103030SCSUN300G
          Revision:  A2A8
          Name Type:  unknown type
          Name:  5000cca00abbaa9c
          Asymmetric:  no
          Current Load Balance:  shortest-path
          Logical Unit Group ID:  NA
          Auto Failback:  on
          Auto Probing:  NA
  
          Paths: 
                  Initiator Port Name:  w5080020000d67ae9
                  Target Port Name:  w5000cca00abbaa9d
                  Override Path:  NA
                  Path State:  OK
                  Disabled:  no
  
          Target Ports:
                  Name:  w5000cca00abbaa9d
                  Relative ID:  0

Manually Configuring FC Devices

In the Oracle Solaris release, fabric-connected devices are available automatically to the Oracle Solaris system.

If you want to manually configure the fabric-connected devices, use the following steps to change the default behavior.