To export a DMP device as a vSCSI disk

1. Log into the VIO server partition.
2. Use the following command to access the non-restricted root shell. All subsequent commands in this procedure must be invoked from the non-restricted shell.

   $ oem_setup_env

3. The following command displays the DMP devices on the VIO server:

   dmpvios1$ lsdev -t dmpdisk

   ibm_ds8000_0287 Available  Veritas DMP Device
   ibm_ds8000_0288 Available  Veritas DMP Device
   ibm_ds8000_0292 Available  Veritas DMP Device
   ibm_ds8000_0293 Available  Veritas DMP Device
   ibm_ds8000_029a Available  Veritas DMP Device
   ibm_ds8000_02c1 Available  Veritas DMP Device
   ibm_ds8000_0337 Available  Veritas DMP Device

4. Assign the DMP device as a backing device. Exit from the non-restricted shell to run this command from the VIOS default shell.

   dmpvios1$ exit

   $ mkvdev -vdev ibm_ds8000_0288 -vadapter vhost0
   vtscsi3 Available

5. Use the following command to display the configuration.

   $ lsmap -all

   SVSA           Physloc                    Client Partition ID 
   -------------- -------------------------- ------------------- 
   vhost0         U9117.MMA.0686502-V2-C11   0x00000000 
   VTD              vtscsi0 
   Status           Available 
   LUN              0x8100000000000000 
   Backing device   ibm_ds8000_0337 
   Physloc 
   
   VTD              vtscsi1 
   Status           Available 
   LUN              0x8200000000000000 
   Backing device   ibm_ds8000_02c1 
   Physloc 
   
   VTD              vtscsi2 
   Status           Available 
   LUN              0x8300000000000000 
   Backing device   ibm_ds8000_029a 
   Physloc V
   
   TD               vtscsi3 
   Status           Available 
   LUN              0x8400000000000000 
   Backing device   ibm_ds8000_0288 
   Physloc 

6. For a dual-VIOS configuration, export the DMP device corresponding to the same SAN LUN on the second VIO Server in the configuration. To export the DMP device on the second VIO server, identify the DMP device corresponding to the SAN LUN as on the VIO Server1.

   • If the array supports the AVID attribute, the DMP device name is the same as the DMP device name on the VIO Server1.

   • Otherwise, use the UDID value of the DMP device on the VIO Server1 to correlate the DMP device name with same UDID on the VIO Server2.

     On VIO Server1:

     $ oem_setup_env

     dmpvios1$ lsattr -El ibm_ds8000_0288

     attribute value            description        user_settable 
     dmpname   ibm_ds8x000_0288 DMP Device name   True 
     pvid      none             Physical volume identifier True 
     unique_id IBM%5F2107%5F75MA641%5F6005076308FFC61A000000000
     0000288 
     Unique device identifier   True

     On VIO Server2:

     $ oem_setup_env

     dmpvios2$ odmget -q "attribute = unique_id and 
     value = 'IBM%5F2107%5F75MA641%5F6005076308FFC61A000000000
     0000288'" CuAt

     CuAt: 
     
        name = "ibm_ds8000_0288"
        attribute = "unique_id"
        value = "IBM%5F2107%5F75MA641%5F6005076308FFC61A00
        00000000000288" 
        type = "R" 
        generic = "DU"
        rep = "s" 
        nls_index = 4

7. Use the DMP device name identified in step 6 to assign the DMP device as a backing device. Exit from the non-restricted shell to run this command from the VIOS default shell.

   dmpvios1$ exit

   $ mkvdev -vdev ibm_ds8000_0288 -vadapter vhost0
   vtscsi3 Available

8. Use the following command to display the configuration.

   $ lsmap -all

   SVSA           Physloc                   Client Partition ID 
   -------------- ------------------------- ------------------- 
   vhost0         U9117.MMA.0686502-V2-C11  0x00000000 
   VTD              vtscsi0 
   Status           Available 
   LUN              0x8100000000000000 
   Backing device   ibm_ds8000_0337 
   Physloc 
   
   VTD              vtscsi1 
   Status           Available 
   LUN              0x8200000000000000 
   Backing device   ibm_ds8000_02c1 
   Physloc 
   
   VTD              vtscsi2 
   Status           Available 
   LUN              0x8300000000000000 
   Backing device   ibm_ds8000_029a 
   Physloc V
   
   TD               vtscsi3 
   Status           Available 
   LUN              0x8400000000000000 
   Backing device   ibm_ds8000_0288 
   Physloc