High Availability with Oracle 11g Data Guard
Douglas B. Bock, Bijoy Bordoloi, Susan E. Yager
Journal of Digital Information Management, Vol. 7, No. 6, 2009.
DOI: 
Link: http://www.dline.info/fpaper/jdim/v7i6/10.pdf
Abstract:
Oracle 11g Data Guard provides a complete solution that meets the needs for high availability database systems that are critical to business continuity. Data Guard provides a systems architecture that minimizes both planned and unplanned downtime. This article focuses on Oracle 11g Data Guard and Active Data Guard for managing planned downtime and recovering from unplanned downtime. Improvements in high availability capability provided by converting from Data Guard for Oracle 10g to 11g are highlighted. The reference listing provides a concise source of detailed Oracle technical papers and other references that focus on Data Guard and related software products