Table of Contents

An Availability Primer. Availability Theory and Practice. Vendors and High Availability. Clouds and Virtualization. Appendices and Hard Sums.

About the Author

Dr. Terry Critchley is a retired IT consultant living near Manchester in the United Kingdom. He studied physics at the Manchester University (using some of Rutherford's original equipment!), gained an Honours degree in physics, and 5 years later with a PhD in nuclear physics. He then joined IBM as a Systems Engineer and spent 24 years there in a variety of accounts and specializations, later served in Oracle for 3 years. Terry joined his last company, Sun Microsystems in 1996 and left there in 2001, after planning and running the Sun European Y2000 education, and then spent a year at a major UK bank.

In 1993 he initiated and coauthored a book on Open Systems for the British Computer Society (Open Systems: The Reality) and has recently written this book IT Services High Availability. He is also mining swathes of his old material for his next book, Service Performance and Management.