When preparing a Network Express Module (NEM) for a hot-remove operation, the Server Module (blade) fails to relinquish its connection to the NEM.
Because the NEMs are shared resources, all Server Modules (blades) must respond favorably to the PCI hot-remove request. A blade may not relinquish the link to a NEM if, for instance, there are busy NFS mounted volumes, file transfers, and so forth. In addition, if the blade is in a "transition" state, for example, at the system halted prompt or in the BIOS menu, the blade will always remain connected to the NEM when a hot-remove operation is attempted. You must either power off the blade or boot the blade into the OS for the hot-remove operation to succeed.
To determine the state of the NEM-to-blade connections, you can use the ILOM web interface or the command-line interface. There are three states that show the connection status of the NEM to the blade:
Connected – Indicates that the NEM is connected to the blade.
Attention_on – Indicates that there is a problem training the PCIe link between the blade and the NEM. This state could indicate a fault with either the NEM or the blade.
Not_connected – Indicates that the blade is not connected to the NEM.
You can use either the ILOM web interface or the command-line interface to determine the connection status of the blade.
To verify the NEM-to-blade connections using the ILOM web interface:
Log in to the ILOM web interface.
In the left navigation pane, select Chassis Monitoring Module.
The ILOM Version Information page appears.
Select the System Information tab, and then the Components tab.
The Component Management page appears.
Click on the NEM component name.
A dialog appears that contains "bladeX_link_status" entries for each blade (where X is the blade module number).
If the NEM link status is Connected, perform the appropriate host OS procedure for releasing the NEM from the blade.
Re-execute the steps in Prepare Components for Hot-Remove Operation
To verify NEM-to-blade connections using the ILOM CLI:
Log in to the ILOM CLI.
Type the following command, where X is the number of the NEM in question:
show /CH/NEMx
The system responds with a "bladeX_link_status" entries for each blade (where X is the blade module number).
Perform the appropriate host OS procedure for releasing the NEM from the blade.
Re-execute the steps in Prepare Components for Hot-Remove Operation