Oracle Data Guard: Difference between revisions

Revision as of 10:58, 14 June 2011

Revision as of 06:17, 7 September 2011

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== Operation ==

=== Server-side functionality ===

'''LNS''' (log-write network-server) and '''ARCH''' (archiver) processes running on the primary database select archived [[redo log]]s and send them to the standby database,<ref>

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Once the archived redo logs have arrived, other processes (such as an '''ARCH''' (Archiver process), an '''MRP''' (Managed Recovery Process), and/or an '''LSP''' (Logical Standby Process)) may set about applying the log contents to the standby database.

===Client-side access===

The Data Guard Broker subsystem can aid in the setup, management and monitoring of Data Guard configurations.<ref>

{{cite book

| last = Whalen

| first = Edward

| title = Oracle Database 10g Linux administration

| url = http://books.google.com/books?id=2ImPFP6Yk64C

| accessdate = 2011-09-07

| year = 2005

| publisher = McGraw-Hill Professional

| isbn = 9780072230536

| page = 329

| pages = 465

| quote = The Data Guard Broker is the set of utilities and services that manage Data Guard. Included in the Data Guard Broker are both a GUI interface using Oracle Enterprise Manager and a command-line interface (CLI). The Data Guard Broker is used to set up Data Guard, to manage the configuration, and to monitor Data Guard.

}}

</ref>

== Advantages ==