Removing a PCI adapter contained in a cassette from the expansion unit with the power on in AIX

You can remove or replace a PCI adapter cassette from the 5802 or 5877 expansion unit that is running the AIX operating system with the system power on.

Before you begin: Prepare to remove a PCI adapter cassette. See Preparing to install, remove, or replace a PCI adapter cassette.

Notes:

Use this procedure to remove a PCI adapter and leave the slot in the system unit empty.
If the adapter that is removed will be placed into a different slot or system, complete this removal procedure, and then install the adapter as described in Installing a PCI adapter contained in a cassette with the power on in AIX.
Procedures performed on a PCI adapter with the system power on in AIX®, also known as hot-plug procedures, require the system administrator to take the PCI adapter offline prior to performing the operation. Before taking an adapter offline, the devices attached to the adapter must be taken offline as well. This action prevents a service representative or user from causing an unexpected outage for system users.

To remove an adapter, do the following steps:

If you are removing a failing PCI adapter, see Identifying a failing part. If you are removing the PCI adapter for other reasons, continue to the next step.
Determine the location of PCI adapter in the system.
Record the slot number and location of each adapter being removed.
Note: Adapter slots are numbered on the rear of the system unit.
Ensure that any processes or applications that might use the adapter are stopped.
Enter the system diagnostics by logging in as root user or as the celogin user, and type diag at the AIX command line.
When the DIAGNOSTIC OPERATING INSTRUCTIONS menu displays, press Enter.
At the FUNCTION SELECTION menu, select Task Selection, and then press Enter.
At the Task Selection list, select PCI Hot Plug Manager.
Select Unconfigure a Device, and then press Enter.
Press F4 (or press Esc+4) to display the Device Names menu.
Select the adapter you are removing in the Device Names menu.
Use the Tab key to answer NO to Keep Definition. Use the Tab key again to answer YES to Unconfigure Child Devices, and then press Enter. The ARE YOU SURE screen displays.
Press Enter to verify the information. Successful unconfiguration is indicated by the OK message displayed next to the Command field at the top of the screen.
Press F4 (or press Esc+4) twice to return to the Hot Plug Manager menu.
Select Replace/remove PCI Hot Plug adapter.
Select the slot that has the device to be removed from the system.
Select Remove. A fast-blinking amber LED located at the back of the machine near the adapter indicates that the slot has been identified.
Label all cables that are attached to the adapter that you plan to remove.
Press Enter. This places the adapter in the action state, meaning it is ready to be removed from the system.
Disconnect all cables attached to the adapter that you plan to remove.
Remove the PCI adapter cassette from the system. Refer to Removing a PCI adapter cassette from the expansion unit.
Place the cassette with the cover facing up on an approved ESD surface.
Continue to follow the screen instructions until you receive a message that the adapter removal is successful. Successful removal is indicated by the message OK, which is displayed next to the Command field at the top of the screen.
If you have other adapters to remove, press the F3 key to return to the PCI Hot-Plug Manager menu, and then return to step 20.
If you do not have other adapters to remove, continue with the next step.
Press F10 to exit the Hot-Plug Manager.
Run the diag -a command. If the system responds with a menu or prompt, follow the instructions to complete the device configuration.
To remove the adapter from the cassette, see PCI adapter single-width and double-width cassettes.
Place an empty cassette into the unused PCI slot for proper air flow.