Fujitsu sparc m3000 User Manual

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C120-E360-06EN

CHAPTER 1  RCI Overview 

• RCI redundancy (only for the high-end system) 

The eXtended System Control Facility (XSCF) unit (Note) of the high-end system has 
a redundant configuration (duplicated configuration), realizing a high-reliability 
system. The redundant configuration of the XSCF unit can duplicate a network (RCI 
network) created by connecting RCI units with RCI cables.

Note:

The XSCF has a system control facility that runs on a service processor 
provided as standard in the base cabinet. A board with a preinstalled XSCF 
control program (XSCF firmware) is an XSCF unit.

This section describes the functions provided by the RCI.

• RCI network status monitoring

For stable operation of an RCI network, an RCI host constantly monitors the status of 
the RCI network.  Upon detection of a failure in the RCI network, the RCI host 
collects a hardware log and reports the failure to the relevant domain.

• Control of power supply to RCI I/O units

When an RCI host is powered on or off, the RCI host powers on or off, respectively, 
RCI I/O units synchronously.  When at least one RCI host in an RCI network is 
powered on, all RCI I/O units are powered on synchronously.  When all RCI hosts are 
powered off, all RCI I/O units are powered off synchronously.

• Interlocking mechanism for power supply to domains

When remote power control mode is set for a domain, the domain is powered on and 
off in synchronization with other domains in the RCI network.

To set remote power control mode in a domain, execute the setpwrmode command in 
the domain.

For details, see the Enhanced Support Facility User's Guide for Machine 
Administration.