Oracle Data Guard: Difference between revisions

Revision as of 23:55, 29 August 2010

Revision as of 00:04, 30 August 2010

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== Disdvantages ==

Data Guard restricts cross-platform and Oracle Database versions must all be similar are limits to the functionality. Additinally, Data Guard is a costly option bundled within "Enterprise Edition" of the [[Oracle RDBMS]].<ref>http://download.oracle.com/docs/cd/B28359_01/server.111/b28294/standby.htm#insertedID3 ''Data Guard Concepts and Administration'', 11g Release 1 (11.1); Section 2.3.2: "Oracle Software Requirements" Retrieved 2007-10-01</ref> AllowingAllows read-only access on the standby node at the same time as archiving transactions from the primary node is limiting to a [[high availability]] solution.

<ref>

{{cite web

| title = Oracle Active Datadata Guard

| url = http://www.oracle.com/database/active-data-guard.html

| work = Oracle Database

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}}

</ref>

Substantial costs savings are possible using Oracle Standard Edition (SE) or Oracle Standard Edition One (SE1)with use of a third-party product such as Quest[http://www.quest.com/shareplex-for-oracle/ SharePlex for Oracle Database Replication] to provide [[high availability]] for a database system with full read/write access to both source and target copies of the [[Oracle RDBMS]]. <ref>

{{cite web

| title = Consider Oracle Standard Edition to Reduce Database Management System Costs