The operations of switches on the operator panel can be limited by switching the operation mode with the dedicated key supplied for the panel.

1.3.9XSCF Unit

The XSCF unit (XSCFU) includes a dedicated processor, which operates independently from the main unit processors. The XSCFU in the servers adopts a duplicated configuration to increase fault tolerance.

The XSCFU is equipped with hardware interfaces for network connections to remote devices such as personal computers and workstations. A remote device can be connected via a network to the XSCF to control startup, settings, and operation management of the system.

The XSCFU provides the following hardware interfaces for network connections:

■Serial port

■LAN ports (10/100BASE-T/100Base-TX)

The XSCF can be accessed through network connections using these interfaces. The commandline interface (XSCF shell) and browser-based user interface (XSCF Web pages) provided by the XSCF enable operation and management of the servers.

For details, see the SPARC Enterprise M4000/M5000/M8000/M9000 Servers XSCF User’s Guide.

1.3.10Internal Drive Units

The SPARC Enterprise M8000/M9000 servers contain the following in-cabinet drive units. These allow active replacement or addition:

Hard Disk Drive

The hard disk drive is a 2.5-inch hard disk drive with a serial attached SCSI (SAS) interface. It can be mounted in an IOU.

Chapter 1 System Overview 1-23