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the XSCF Unit is fixed to the Motherboard Unit (MBU). For details of the server
differences, see
page
Note – (1) Processors on server boards are called CPUs.
Note – (2) Only the system model with a special interface can power on and off the
peripheral devices. (See Remote Cabinet Interface (RCI) in
Redundant XSCFs (High-End Servers Only)
The high-end servers use a redundant configuration of XSCF Units, thereby
providing high system reliability. The XSCF that controls the server is called the
Active XSCF or Active XSCF Unit, while the other XSCF acts as a backup and is
called the Standby XSCF or Standby XSCF Unit. The Active XSCF and the Standby
XSCF monitor each other, and if an error is detected, they determine when a failover
switching to Active or Standby should be performed.
External Interfaces
The following connectors (ports) and LEDs act as the external interface of the XSCF
Unit. The user, system administrator, and field engineer (FE) can use these ports for
server monitoring and XSCF firmware operations:
One Serial port that can be used for the command-line interface (CLI) (Note 1)
■
Two Ethernet ports (XSCF-LAN ports) (10Base-T / 100Base-T (TX))
■
CLI and the browser user interface (BUI) can be used with these ports for server
monitoring and operations. (Note 1)
USB port that an FE or a system administrator can use to save and restore
■
hardware information
Two UPS Controller (UPC) ports to connect the entire system with an
■
Uninterruptible Power Supply Unit (UPS)
A UPS is connected for backup power control purposes in the event of a power
outage. In the M8000/M9000 servers, the UPC interface ports are in the cabinet.
1-2
SPARC Enterprise Mx000 Servers XSCF User's Guide • January 2012
Section 1.2.1, "Major Differences Among the Server Models" on
1-14.
External
Interfaces.)
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