HP NonStop NS Identifying Processor Problems, Monitoring Processor Performance Using ViewSys

Processors and Components: Monitoring and	Monitoring Processor Performance Using ViewSys
Recovery

Monitoring Processor Performance Using ViewSys

Use the ViewSys product to view system resources online and to see information on system performance. ViewSys provides information about processor activity. Using ViewSys, you can list the processors on your system and determine their status. For more information, refer to ViewSys on page B-6.

To use ViewSys to obtain information about processor activity, at a TACL prompt:

> VIEWSYS

A series of bar graphs that summarize processor performance statistics appears on your terminal.

Note. The Measure utility also collects and displays statistics about system performance and the performance of processors and other system components. Operations management personnel often use this utility to help fine-tune and balance a system. For instructions on using this utility, refer to the Measure User’s Guide and the Measure Reference Manual.

After the first ViewSys screen appears, press F1 to view processor busy statistics:

EXIT -	F16 Alt-F6			VIEWSYS	HELP - BREAK ctrl-Scroll Lock
system: \SAGE		process: $VIEW		pid1: 07,70	pid2:	terminal: $TERM1
delay:	3.00 seconds		mode: CURRENT last sample:		July 2, 1993	11:06:54.07

	CPU BUSY
0---1---2---3---4---5---6---7---8---9---100%		BUSY
cpu 00		32
cpu 01		51
cpu 02		42
cpu 03		72
cpu 04		10
cpu 05		89
cpu 06		8
cpu 07		29
cpu 08		23

To exit ViewSys, press F16.

Identifying Processor Problems

Processor problems include system hangs, processor halts, OSM alarms.

Processor or System Hangs

A processor hang occurs when system components wait for an event that is not going to happen. An unexpected event such as a deadlock (two or more processors waiting for each other) might have occurred. In some cases, the entire system might hang, or be unresponsive.

HP Integrity NonStop NS-Series Operations Guide—529869-005

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