the XSCF and an encryption function using SSH and SSL. Operator errors and unauthorized access during system operation are recorded in a log. The system administrator can use these functions to investigate the cause of a system problem.

3.2.2.3System Status Management

The XSCF provides functions as XSCF operations for displaying the system configuration status, creating and changing a domain configuration definition, and starting and stopping domains. Also, the XSCF provides the DR function, which assists in dynamically changing a system board configuration during domain operation. Thus, domain resources can be optimized for job operations. Moreover, the XSCF in linkage with the Solaris Operating System manages CPU, memory, and I/O resources.

3.2.2.4Error Detection and Management

The XSCF constantly monitors the system status so that the system can operate stably. When any error is detected in the system, the XSCF immediately collects error information about the hardware (hardware log) and analyzes it to identify the error location. To continue operation, the XSCF degrades the relevant component or domain as necessary according to error conditions or it resets the system, thereby preventing the problem from occurring again. The user can take prompt action for problems since easy-to-understand and accurate information on hardware errors and fault locations are thus provided to the user.

3.2.2.5Remote System Control and Monitoring

The XSCF provides functions for monitoring the server through an Ethernet connection so that the user can remotely manage the server. Moreover, a function for reporting error information to the system administrator and a remote console input- output function are supported. System availability is thus increased.

3.2.2.6Resource Management

XSCF manages hardware resources on configured domains and system boards. As for the resource management, DR function that enables dynamic reconfiguration of domains is provided. Moreover, COD is provided to realize resource management CPUs that is purchased by license.

Chapter 3 About Software 3-5