To replace a host bus adapter online

1. Disable the paths to the controller by removing the reference from DMP. Enter the following. In this example, the controller name is fscsi.

   # vxdmpadm -f disable ctlr=fscsi

2. Remove the device references from the operating system. Enter the following:

   # rmdev -Rdl fscsi

3. Rescan the device tree and rebuild the DMP database. Enter the following:

   # vxdctl enable

4. Replace the host bus adapter.
5. Reconfigure the devices in the operating system. Enter the following:

   # cfgmgr

6. Verify that new devices appear at the operating system level.

   # lsdev -Cc disk

7. Enable the controller. In this example, the controller name is fscsi.

   # vxdmpadm enable ctlr=fscsi

8. Rescan the device tree and rebuild the DMP database.

   # vxdctl enable