This IBM® Redbooks® publication helps strengthen high availability solutions for IBM Power Systems™ with IBM PowerHA® SystemMirror® Enterprise Edition (hardware, software, and tools) with a well-defined and documented deployment model within an IBM Power Systems environment, offering clients a planned foundation for a dynamic, highly available infrastructure for their enterprise applications.

This book addresses topics to leverage the strengths of IBM PowerHA SystemMirror 7.1.2 Enterprise Edition for AIX on IBM Power Systems to solve client application high availability challenges, and maximize system availability, and management. The book examines the tools, utilities, documentation, and other resources available to help the IBM technical teams provide solutions and support for IBM high availability solutions with IBM PowerHA in an IBM Power Systems environment.

This book is targeted toward technical professionals (consultants, technical support staff, IT Architects, and IT Specialists) responsible for providing high availability solutions and support with IBM Power Systems and IBM PowerHA.

This book was produced by a team of specialists from around the world working at the International Technical Support Organization, Poughkeepsie Center.

Dino Quintero is a complex solutions project leader and IBM Senior Certified IT Specialist with the ITSO in Poughkeepsie, NY. His areas of knowledge include enterprise continuous availability, enterprise systems management, system virtualization, technical computing, and clustering solutions. He is currently an Open Group Distinguished IT Specialist. Dino holds a Master of Computing Information Systems degree and a Bachelor of Science degree in Computer Science from Marist College.

Venkatesh Balappa is a System Software Engineer in IBM India. He is currently working at IBM ISTL, which is the India Systems and Technology Lab, where he is working on GFW (Power firmware), Hardware Management Console (HMC) and PowerHA System Mirror Service Pack Test. He has more than five years of experience in system testing on various IBM POWER® system features such as PowerHA SystemMirror, Dynamic Logical Partitioning (DLPAR), Live Partition Mobility, FSP reset/reload, LDAP, Virtual IO Server and Hardware Management Console (HMC). His area of expertise includes PowerHA SystemMirror, DLPAR, FSP reset/reload, Virtual IO Server and HMC. Venkatesh holds a Bachelor of Engineering degree in Computer Science from VTU Belgaum, India.

Shawn Bodily is a Certified Consulting IT Specialist for Advanced Technical Skills Americas in Dallas, Texas. He has worked for IBM for 14 years and has 16 years of AIX® experience, with 12 years specializing in High Availability Cluster Multi-Processing (HACMP™). He is double Advanced Technical Expert certified. Shawn has written and presented extensively on high availability and storage and has coauthored six other Redbooks publications.

Daniel de Souza Casali is a Lab Services Senior Consultant in Brazil. He has 10 years of experience in the UNIX systems field. Daniel holds an Engineering degree in Physics from the Federal University of São Carlos (UFSCar). His areas of expertise include UNIX, SAN networks, IBM Disk Subsystems and clustering solutions.

Johann-Georg Dengel is a systems engineer and member of the AIX Engineering Team in the Dynamic Platform Services of T-Systems International GmbH, Germany. He has more than 22 years of experience in various IT fields, including operating systems, SAN-engineering and administration, database administration and HADR solutions. Johann-Georg is double advanced Technical Expert certified. This is his first experience co-authoring a Redbooks publication.

Murali Dhandapani is a Certified IT Specialist in Systems Management in IBM India. He is working for the IBM India Software Lab Operations team, where he is a technical lead for IBM Rational® Jazz™ products infrastructure, high availability, and disaster recovery deployment. He has 10 years of experience. His areas of expertise include Linux, AIX, IBM POWER Virtualization, PowerHA SystemMirror, System Management, and Rational tools. Murali has a Master of Computer Science degree. He is an IBM developerWorks® Contributing Author, IBM Certified Specialist in System p® administration and an IBM eServer™ Certified Systems Expert - pSeries® High Availability Cluster Multi-Processing (IBM HACMP).

Machi Hoshino is an IT Specialist for Power Systems and AIX in IBM Japan Systems Engineering, which provides part of the GTS function in Japan. He has four years of experience in AIX and the PowerHA field. He holds a Bachelor in Liberal Arts degree with a major in Information Science from the Christian University. His areas of expertise include Power Systems, AIX, PowerHA SystemMirror for AIX, PowerVM®, GPFS™, and Linux on Power.

Jes Kiran is an Advisory Software Engineer in IBM India. He has more than 11 years of experience and is a lead developer for PowerHA SystemMirror. He is involved with various features of PowerHA. He is an expert in system programming and kernel areas. His areas of expertise include PowerHA, RSCT, CAA, SSP, VIOS, and HMC. Jes holds a Bachelor of Technology degree from Kakatiya University.

Kunal Langer is a Technical Consultant for Power Systems and AIX in STG Lab Based Services in IBM India. He has more than six years of experience in Power Systems. He is a certified technical expert for AIX and PowerHA. His areas of expertise include AIX, PowerHA, PowerVM and IBM System Storage®. He has co-authored previous IBM PowerHA SystemMirror Redbooks publications. Kunal holds a Bachelor of Computer Science degree from VTU, India.

Paulo Sergio Lemes Queiroz is an IT Specialist with IBM Brazil. He has 10 years of experience in UNIX and Linux, ranging from systems design and development to systems support. His areas of expertise include AIX Power Systems, AIX, GPFS, RHCS, KVM, and Linux. Paulo is a Certified Advanced Technical Expert for Power Systems with AIX (CATE) and a Red Hat Certified Engineer (RHCE).

Matt Radford is a UNIX support specialist in the United Kingdom. He has worked in IBM for 15 years and has five years of experience in AIX and High-Availability Cluster Multi-Processing (HACMP). He holds a degree in Information Technology from the University of Glamorgan. Matt has co-authored two other IBM Redbooks publications.

Andrei Socoliuc is a Certified IT Specialist in Systems and and Infrastructure, working in IBM Global Technologies Services Romania. He has more than 12 years of experience in IT infrastructure. Andrei holds a Master's degree in Computer Science from the Polytechnical University of Bucharest. He is a Certified Advanced Technical Expert IBM System p and a Certified Tivoli® Storage Manager specialist. He has worked extensively on HACMP and Disaster Recovery projects and is also a coauthor of several HACMP IBM Redbooks publications.

Neng Kuan Tu is a creative AIX consultant. He started his IBM career as an AIX developer in 1989 in Austin, Texas. His innovative programming ideas, including a patent in binary to decimal conversion, improved AIX performance significantly. He has been involved in AIX technical support to China's telecommunication industry for almost seven years. After successfully supporting IBM's business in China, he joined Huawei Technologies to build Huawei's IT infrastructure for R&D. In 2011, he rejoined IBM and supports IBM worldwide business. His expertise includes performance tuning, problem determination, server virtualization, and high availability solutions. Neng holds a PhD in Physics from the Ohio State University.

Thanks to the following people for their contributions to this project:

Octavian Lascu, Richard Conway, David Bennin, Alfred Schwab (editor)
International Technical Support Organization, Poughkeepsie Center

PI Ganesh, Michael Coffey, Patrick Buah, Ravi A. Shankar, Paul Moyer, Tom Weaver, Bob Maher, Ken Fleck, Nick Fernholz, Mark Gurevich, Stephen Tovcimak, Steven Finnes, Gary Lowther, Kam Lee, Bob McNamara
IBM USA

Lakshmipriya Kanduru, Seema K.T., Mamatha Medarametla, Saritha Garpelly
IBM India

Here’s an opportunity to spotlight your skills, grow your career, and become a published author—all at the same time! Join an ITSO residency project and help write a book in your area of expertise, while honing your experience using leading-edge technologies. Your efforts will help to increase product acceptance and customer satisfaction, as you expand your network of technical contacts and relationships. Residencies run from two to six weeks in length, and you can participate either in person or as a remote resident working from your home base.

Find out more about the residency program, browse the residency index, and apply online at:

Your comments are important to us!

We want our books to be as helpful as possible. Send us your comments about this book or other IBM Redbooks publications in one of the following ways:

IBM Corporation, International Technical Support Organization
Dept. HYTD Mail Station P099
2455 South Road
Poughkeepsie, NY 12601-5400