The concurrent maintenance light for the slot indicates that you can install the disk drive.
Device Concurrent Maintenance Action
Installation of device:
Location: U0.1-P1-I4/Z1-A8
You have 1 minute to perform the operation
During this time, your system can seem unresponsive
c=Confirm q=CancelA Device Concurrent Maintenance Action In Progress display similar to the following is shown.
Device Concurrent Maintenance Action In Progress
Please insert the device located in:
Location: U0.1-P1-I4/Z1-A8


The concurrent maintenance light for the slot stops blinking and remains on when you have installed the disk drive properly.