To clean up the operating system device tree after removing LUNs

1. Enter the following command. Devices that have been removed will have Defined after the disk name.

   # lsdev -Cc disk
   hdisk431 Defined  09-08-02 IBM 2810XIV Non-MPIO Fibre Channel Disk
   hdisk432 Defined  0A-08-02 IBM 2810XIV Non-MPIO Fibre Channel Disk

2. For each disk name, run the following command to remove it from the operating system database:

   # rmdev -dl hdisk-name

   In this example, the commands would be the following:

   # rmdev -dl hdisk431

   # rmdev -dl hdisk432

3. Repeat step 1 and verify that no devices are shown as Defined.