HP B.06.X manual Verifying PPU Utilization Information

Special Considerations

Verifying PPU Utilization Information

Verifying PPU Utilization Information

Your PPU system/partition’s processor utilization information is available from the HP PPU web portal. See “PPU Web Portal” on page 36 for details of the PPU web portal.

If you are interested in verifying PPU utilization information against the PPU web portal information, you can use the sar command to compare processor utilization numbers. The sar command is a HP-UX system activity reporter that samples and accumulates processor utilization. See the manpage sar (1M ) for details on the sar command.

An overview of the processor utilization verification process is:

•Create processor utilization numbers for your PPU system/partition with the sar command

•Go to the PPU web portal and capture processor utilization numbers for the same PPU system/partition and duration of time

•Verify the sar utilization numbers against the PPU web portal utilization numbers

		To perform the utilization verification process, perform the following
		steps:
NOTE		Because the PPU web-portal’s utilization reports contain 30 minutes of
		information, beginning on the hour or on the half-hour, it is
		recommended to time the execution of Step 1 (below) immediately upon
		the start of a hour, or half past the hour. Another option is to create a
		shell script that contains the command in Step 1 and schedule a cron job
		so it starts exactly on the hour or half hour.
Step	1. In a terminal window on the PPU system, execute the following
		command:
		/usr/bin/nice --10 /usr/sbin/sar -o /tmp/sarOut 300 12
		Where “300” represents the (averaged) interval duration of the
		utilization sample, in seconds, and “12” represents the number of

Appendix B 63