Oracle Data Guard: Difference between revisions

Revision as of 13:46, 6 October 2011

Revision as of 22:46, 9 November 2011

Line 127:

Version 11.2.0.1.0 and earlier is somewhat unreliable and buggy in its physical standby incarnation.

If the network link connecting primary and standby is over-subscribed, the orderredo oflogs shippingare redonot isapplied notin chronological order, which can result in large gaps appearing in the available redo at the standby. -Such netta resultcondition isresults thatin the standby is way, waybeing behind the primary.

Data Guard restricts use to like platform and Oracle RDBMS versions. As<ref mentionedname="Oracle in this reference,Database Options"/>

<ref name="Oracle Database Options"/>

Active Data Guard is an added cost option bundled within "Enterprise Edition" of the [[Oracle RDBMS]] and allows purely read-only access.

<ref name="Oracle Active data Guard"/>