Emc Corporation

Kenneth John Hayman

Alan Lee Taylor

Dennis Thomas Duprey

Karl M Owen

Eric R Vook

Victor T Kan

William Paul Hotle

J Brandon Myers

Christopher Adam Norris

Abhijit Aswath

A method, system, or computer program product for controlling access to software component features is disclosed. There are three available states for selectable component features. The three available states, of which one is selected, are: (i) enabled access to the selected software component features for users and other software component features on a data storage system, (ii) enabled access to the selected software component features by other software component features on a data storage system, or (iii) disabled access to the software component features.

System and method for enabling access and use of software installed on a data storage system

A method and system for synchronizing a plurality of data images in a computer system, includes a primary image and at least one secondary image which are synchronized. A host computer issues write requests to a primary image site which is also transmitted to a secondary image site. Writing to the primary image and the secondary image at the primary image site and secondary site is conducted simultaneously. If a failure to write to the secondary image occurs, a fracture log is created which is a bitmap representative of changed regions in the primary image at the primary image site in response to the write request. When writing to the secondary image is restored, the log can be used to synchronize the primary image and the secondary image.

Method and system for establishing, maintaining, and using a persistent fracture log

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Apex, NC, United States of America

Kenneth John Hayman