Identify a Disk Slot Using prtconf (Oracle Solaris, Onboard Controllers)

The procedure described below is intended for SPARC T3-1 servers with sixteen-disk capable backplanes. These systems include a SAS expander between the two on-board SAS controllers and the hard drive connectors. The 16 disk backplane is zoned such that the phy-num value associated with each drive is relative to its controller.

1. Run the format command.

   # format
   Searching for disks...done
    
   AVAILABLE DISK SELECTIONS:
       0. c0t5000C5001D3FF2D7d0 <SUN300G cyl 46873 alt 2 hd 20 sec 625>
          /scsi_vhci/disk@g5000c5001d3ff2d7
       1. c0t5000C5001D40D7F7d0 <SUN300G cyl 46873 alt 2 hd 20 sec 625>
          /scsi_vhci/disk@g5000c5001d40d7f7
   [...]

   The remaining steps in this example will identify the physical slot that corresponds to the device name c0t5000C5001D3FF2D7d0.

2. Run prtconf -v and search for the device link c0t5000C5001D3FF2D7d0.

   Device Minor Nodes:
       dev=(32,0)
           dev_path=/scsi_vhci/disk@g5000c5001d3ff2d7:a
               spectype=blk type=minor
               dev_link=/dev/dsk/c0t5000C5001D3FF2D7d0s0      <<=== Device path
               dev_link=/dev/sd3a
           dev_path=/scsi_vhci/disk@g5000c5001d3ff2d7:a,raw
               spectype=chr type=minor
               dev_link=/dev/rdsk/c0t5000C5001D3FF2D7d0s0     <<=== Device path
               dev_link=/dev/rsd3a

3. Search the prtconf output for a name=’wwn’ entry that has the WWN value 5000c5001d3ff2d7.

   Note the target-port value listed with that WWN value. In this example it is 5000c5001d3ff2d5. This is the target ID of the physical disk.

   Paths from multipath bus adapters:
       mpt_sas#2 (online)
           name=’wwn’ type=string items=1
               value=’5000c5001d3ff2d7’              <<=== Hard drive WWN ID
           name=’lun’ type=int items=1
               value=00000000
           name=’target-port’ type=string items=1
               value=’5000c5001d3ff2d5’              <<=== Hard drive target ID
           name=’obp-path’ type=string items=1
               value=’/pci@400/pci@2/pci@0/pci@4/scsi@0/disk@w5000c5001d3ff2d5,0’
           name=’phy-num’ type=int items=1
               value=00000004                        <<=== Hard drive slot number
           name=’path-class’ type=string items=1
               value=’primary’
       mpt_sas#5 (online)
           name=’wwn’ type=string items=1
               value=’5000c5001d3ff2d7’
           name=’lun’ type=int items=1
               value=00000000
           name=’target-port’ type=string items=1
               value=’5000c5001d3ff2d5’
           name=’obp-path’ type=string items=1
               value=’/pci@400/pci@1/pci@0/pci@4/scsi@0/disk@w5000c5001d3ff2d5,0’
           name=’phy-num’ type=int items=1
               value=00000004
           name=’path-class’ type=string items=1
               value=’primary’

   ---

   Note - In a SPARC T3-1 system with a sixteen-disk backplane, both controllers list the logical name (the wwn value), a corresponding port name (target-port value), and physical disk location (phy-num value) for every connected hard drive.

   ---

4. The value shown for the name=’phy-num’ entry indicates the physical slot containing the hard drive.

   In this example, the target device is in slot 4.

Related Information

• World Wide Name Syntax

• probe-scsi-all Output Example (SPARC T3-1, Eight-Disk Backplane)

• probe-scsi-all Output Example (SPARC T3-1, Sixteen-Disk Backplane)

• probe-scsi-all Output Example (SPARC T3-4)

• Identify a Disk Slot Using prtconf (Oracle Solaris, Single Initiator)

• WWN Syntax in an OS Installation on a Specific Device

• WWN Syntax in an OS Installation on a RAID Volume