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About Us

The Availability Digest is published by The Sombers Group. We have been active in mission-critical, high-availability solutions for over forty years. Read about our experience at http://www.sombers.com.

The Managing Editor of the Availability Digest is Dr. Bill Highleyman. He brings decades of experience in the design and implementation of mission-critical computer systems to his position as President of The Sombers Group.

He has published extensively on availability, performance, testing, and middleware issues. He is the author of Performance Analysis of Transaction Processing Systems, published by Prentice-Hall, and is co-author of the three-volume series, Breaking the Availability Barrier. These books are available at www.amazon.com.

Dr. Highleyman is co-inventor of "Method of increasing system availability by splitting a system," U. S. Patent No. 7,113,938; "Asynchronous coordinated commit replication and dual write with replication transmission and locking of target database on updates only," U. S. Patent No. 7,177,866; and "Split processing system for providing increased system availability," U. S. Patent No. 7,194,488. He is also co-inventor on several other patent applications in the field of active/active technology.

He is past chairman of ITUG, the HP NonStop Users' Group, and is active in presenting availability seminars and providing availability consulting.

 

© 2006 Sombers Associates, Inc., and W. H. Highleyman