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Restartable Online DEDB Area Expansion Tool

IP.com Disclosure Number: IPCOM000015365D
Original Publication Date: 2002-Jul-30
Included in the Prior Art Database: 2003-Jun-20

Publishing Venue

IBM

Abstract

The Online Area Extender tool (OAE) was designed with the ability to restart in mind. The tool was designed to perform the DEDB area expansion in seperate steps, allowing a restart of the tool to complete the requested area expansion. The alternative would be to remove a the DEDB area from online availability to perform a recovery of the DEDB area. For interested customers this is unacceptable as they need data availablility on a 7x24 bases. Currently, there is a need to allow online expansion of either the IOVF and/or SDEP portions of a DEDB area. The difficulty in following this has been allowing the expansion of the IOVF portion of the DEDB area if the area is defined with SDEPs, while still allowing concurrent online SDEP activity, and still allow for the utility to be restarted in case of a non-catastrophic error. In the above diagram: RAA : Root Addressable Area within the DEDB area