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System Administration Guide: Devices and File Systems

ProcedureHow to Troubleshoot iSCSI Device or Disk Unavailability

  1. Become superuser.

  2. Identify the LUNs that were discovered on this target during enumeration.

    For example:


    # iscsiadm list target -S
Target: iqn.2001-05.com.abcstorage:6-8a0900-37ad70401-bcfff02df8a421df-zzr1200-01
        TPGT: default
        ISID: 4000002a0000
        Connections: 1
        LUN: 0
            Vendor:  ABCSTOR
            Product: 0010 
            OS Device Name: /dev/rdsk/c3t34d0s2

    The -S option shows which LUNs were discovered on this target during enumeration. If you think a LUN should be listed but it is not, review the /var/adm/messages file to see if an error was reported. Check the storage device's log files for errors. Also, ensure that any storage device LUN masking is properly configured.