Performing Node Reconfiguration 161
Recovering From a Failed CMP/Memory Module
This topic includes the following:
■“Options for Recovering From a Failed CMP/Memory Module” on page 161
■“Reconfiguring I/O Device Nodes” on page162
■“Reset the LDoms Guest Configuration” on page 166

Options for Recovering From a Failed

CMP/Memory Module

If your system experiences a complete CMP/memory module failure, do one of the
following:
1. Replace the failed CMP/memory module.
2. If a replacement CMP module is not available, remove the failed CMP module and
replace it with a CMP from a different slot that does not have any directly
connected I/O devices in use (see “I/O Fabric in 2P Configuration” on page168
and “I/O Fabric in 4P Configuration” on page169). If this leaves a memory
module without its associated CMP module, remove the memory module.
Note – At a minimum, a functioning CMP module must be installed in CMP Slot 0.
If you are performing a node reconfiguration following a failure in CMP Slot 0, you
must move one of the remaining CMP modules to CMP Slot 0.
3. If neither option (1) nor (2) is possible, you must do the following:
■“Temporarily Disable All Memory Modules” on page164
■“Reconfigure the I/O and PCIe Fabric” on page163
■“Re-Enable All Memory Modules” on page165
■“Reset the LDoms Guest Configuration” on page166
Related Information
■“Managing Faults” on page11
■“Servicing CMP/Memory Modules” on page102