The following table lists the functionality for system maintenance. Select the functionality according to the system purpose. For details on the functionality, see the Reference column in the following table.

Table 1-2 Functionality for system maintenance

Functionality	Purpose of the system			Reference
	Performance	Operation and maintenance	Others
Troubleshooting	--	Y	--	2, 3, 4, 5, 6
Performance analysis by using trace based performance analysis	Y	Y	--	7, 8

Legend:

Y: Applicable

--: Not applicable