Mapping Between Logical and Physical Device Names on a Sun E450

If you need to find the slot that a disk is in from a given logical name (c3t3d0) you can follow this (Broken link ~~http://sunsolve.sun.com/search/document.do?assetkey=1-9-16735-1&searchclause=16735~~) document from sun. I’ve mirrored the important bits below incase it disapears

Determine the UNIX physical device name from the SCSI error message.

SCSI error messages are typically displayed in the system console
       
and logged in the /usr/adm/messages file. 

```

WARNING: /pci@6,4000/scsi@4,1/sd@3,0 (sd228) Error for Command: read(10) Error level: Retryable Requested Block: 3991014 Error Block: 3991269 Vendor: FUJITSU Serial Number: 9606005441 Sense Key: Media Error ASC: 0x11 (unrecovered read error), ASCQ: 0x0, FRU: 0x0

    
    In the example SCSI error message above, the UNIX physical device name is `/pci@6,4000/scsi@4,1/sd@3`.
    
      * Determine the UNIX logical device name by listing the contents of
          
        the `/dev/rdsk` directory.
        
        Use the grep command to filter the output for any occurrence of
          
        the UNIX physical device name determined in Step 1:
        
        ```
% ls -l /dev/rdsk | grep /pci@6,4000/scsi@4,1/sd@3
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s0 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:a,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s1 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:b,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s2 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:c,raw
        lrwxrwxrwx1 root     root        45 Jan 30 09:07 c12t3d0s3 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:d,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s4 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:e,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s5 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:f,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s6 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:g,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s7 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:h,raw

    The resulting output indicates the associated UNIX logical device name.
   
    In this example, the logical device name is `c12t3d0`
    
      * Determine the disk slot number using the `prtconf` command.
        
        Substitute the string disk@ for sd@ in the physical device name determined in Step 1. The result in this example is
      
        `/pci@6,4000/scsi@4,1/disk@3`.
        
        Use the grep command to find this name in the output of the
      
        prtconf command:
        
        ```

% prtconf -vp | grep /pci@6,4000/scsi@4,1/disk@3 slot#11: ‘/pci@6,4000/scsi@4,1/disk@3’