Asynchronous Duplexing of DB2 Lock Structures in the Coupling Facilities
Project and Program:
Information Management,
Database
Tags:
Proceedings,
2017,
SHARE San Jose 2017
Customers would want to have continuous availability on site failures for multi-site data sharing configurations of DB2 database. That is, when site1 fails, the surviving DB2 members on site2 should continue operating. In today's environment customers don't use CF lock structure duplexing because of associated performance cost and so in the event of disaster, the data sharing group could go down and become unavailable. The new protocol will reduce the performance bottleneck associated with duplexing the CF lock structure and enable customers to have continuous availability with loosing on performance. Customer could also configure Internal Coupling Facilities (ICFs) without compromising availability (ICFs are much cheaper and more efficient than external CFs). CF lock structure duplexing is required to remove the single point of failure.-Manvendra M. Mishra-IBM
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