The Virtualization Cookbook for SLES 10 SP2 - z/VM - IBM

Chapter 14. Monitoring and tuning z/VM and
Linux
Not everything that can be counted counts, and not everything that counts can be
counted.
--Albert Einstein
This chapter briefly describes how to monitor z/VM and Linux. For another source on z/VM
performance and monitoring, see Chapter 11, Monitoring performance and capacity, in the
Manual Getting Started With Linux, SC24-6096 on the Web at:
http://publibz.boulder.ibm.com/epubs/pdf/hcsx0b20.pdf
There are a number of z/VM monitoring tools such as CA’s VM:Monitor, IBM’s z/VM
Performance Toolkit, IBM’s Tivoli OMEGAMON XE for z/VM and Linux. and products from
Velocity Software.The IBM z/VM Performance Toolkit is briefly described in this section.
There are also two sections on tuning z/VM and Linux using Cooperative Memory
Management (CMM) and the CPU plug daemon, cpuplugd.
This chapter contains the following sections:
► “Using INDICATE and other commands” on page 223
► “The z/VM Performance Toolkit” on page 227
► “Monitoring Linux” on page 236
► “Viewing Linux data in the Performance Toolkit” on page 238
14.1 Using INDICATE and other commands
z/VM has many commands to monitor the state of the system. CP INDICATE is the most
commonly used, and there are other commands that are addressed. For more information,
see the z/VM Performance Resources Web page at
http://www.vm.ibm.com/perf/
14
© Copyright IBM Corp. 2010. All rights reserved. 223