IBM Power System 9008-22L Manual page 45

Figure 20. Releasing the mounting bracket
2) Swing the cable management arm away from the system.
In the image, the inner cable management arm tab is shown on the left side as you are facing
the system from the rear. However, the cable management arm can also be installed so that
the inner cable management arm tab is on the right side of the system.
CAUTION: To avoid causing damage to the arm, open the cable management arm just
long enough to complete these repairs.
h) Physically verify that the slot you identified is where you want to remove the adapter.
• Use the blue identify LED on the enclosure to locate the system. Ensure that the serial number
of the system matches the serial number to be serviced.
• Look for a flashing amber LED, which identifies the slot that was selected by using the identify
function.
i) To deactivate the Identify LED, select Toggle LED blink off/on > Power off domain. Wait for the
Hardware Resource Concurrent Maintenance display to appear with this message: Power off
complete.
j) Continue with step "10" on page 34.
9. To prepare to remove a PCIe adapter by using the Linux operating system, complete the following
steps:
Installing, removing, and replacing PCIe adapters in the 9008-22L, 9009-22A, or 9223-22H system 31