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162 SPARC Enterprise T5440 Server Service Manual • June 2011
■ “Servicing FB-DIMMs” on page 108
■ “I/O Connections to CMP/Memory Modules” on page 160
■ “Reconfiguring I/O Device Nodes” on page 162
■ “System Bus Topology” on page 167
■ “I/O Fabric in 2P Configuration” on page 168
■ “I/O Fabric in 4P Configuration” on page 169
Reconfiguring I/O Device Nodes
This topic includes the following:
■ “Options for Reconfiguring I/O Device Nodes” on page 162
■ “Reconfigure the I/O and PCIe Fabric” on page 163
■ “Temporarily Disable All Memory Modules” on page 164
■ “Re-Enable All Memory Modules” on page 165
Options for Reconfiguring I/O Device Nodes
You might need to change the connection between the CMP modules and the
onboard devices described in “I/O Fabric in 2P Configuration” on page 168 or “I/O
Fabric in 4P Configuration” on page 169 in one of the following circumstances:
■ A CMP module has completely failed, you need access to a PCIe slot or device
which was attached to that CMP module, and you are unable to temporarily
replace the failed module or move an existing module over from a different slot
until the failed CMP is replaced.
■ You are upgrading from a 2P to a 4P system.
Related Information
■ “Managing Faults” on page 11
■ “I/O Connections to CMP/Memory Modules” on page 160
■ “System Bus Topology” on page 167
■ “I/O Fabric in 2P Configuration” on page 168
■ “I/O Fabric in 4P Configuration” on page 169
■ “Temporarily Disable All Memory Modules” on page 164
■ “Reconfigure the I/O and PCIe Fabric” on page 163
■ “Re-Enable All Memory Modules” on page 165
■ “Reset the LDoms Guest Configuration” on page 166