System Control; Levels Of System Control; System Management Overview - HP Integrity MC990 X User Manual

System control

This chapter describes the general interaction and functions of the overall Integrity MC990 X system
control. System control parameters depend on the overall size and complexity of the Integrity MC990 X
system but will generally include the following three areas:
• The RMC (one per Integrity MC990 X system)
• The individual MC990 X server chassis-based board management controllers (BMC)—report to the
RMC

Levels of system control

The system control network configuration of your server will depend on the size of the system and control
options selected. Typically, an Ethernet LAN connection to the system controller network is used. This
Ethernet connection is made from a local or remote PC, server or workstation connected to the RMC.
The RMC is a separate stand-alone controller installed in the Integrity MC990 X system rack. The RMC
acts as a gateway and buffer between the Integrity MC990 X system control network and any other public
or private local area networks or systems used to communicate with the Integrity MC990 X system SSI.
IMPORTANT:
The Integrity MC990 X system control network is a private, closed network. It should not be
reconfigured in any way to change it from the standard Integrity MC990 X system factory
installation. It should not be directly connected to any other network. The Integrity MC990 X system
control network is not designed for, and does not accommodate additional network traffic, routing,
address naming (other than its own schema), or DCHP controls (other than its own configuration).
The Integrity MC990 X system control network also is not security hardened, nor is it tolerant of
heavy network traffic, and is vulnerable to Denial of Service attacks.

System management overview

An Ethernet connection directly from the RMC (Figure 10: RMC front panel on page 23) to a local
private or public LAN allows the system to be administered directly from a local or remote console. Note
that there is no direct inter-connected system controller function in any optional expansion or storage
modules.
The system control network is designed into all MC990 X server chassis motherboards. Controllers within
the system report and share status information via the RMC Ethernet interconnect cables. This maintains
controller configuration and topology information between all controllers in an SSI. Figure 11: RMC
functionality on page 24 shows an example system control network using an optional and separate
(remote) workstation to monitor a single-rack Integrity MC990 X system. It is also possible to connect an
optional PC or server directly to the RMC via USB, see Figure 11: RMC functionality on page 24 for
an example diagram of RMC system management.
NOTE:
External mass storage enclosures are not specifically monitored by the system controller network.
Most optional mass storage enclosures have their own internal microcontrollers for monitoring and
controlling all elements of the disk array. See the user guide for your mass storage option for more
information on this topic.
For information on software commands used for administering network connected Integrity MC990 X
systems using the RMC, see the HPE Integrity MC990 X Server RMC Software User Guide.
22 System control