OracleDB HA 12cR1 Overview

8/16/2019 OracleDB HA 12cR1 Overview

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1 Copyright © 2013, Oracle and/or its affiliates. All rights reserved.


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Oracle Database 12cExtreme Availability

Geovanni Vega VelasquezDatabase Brand Manager Mexico


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Oracle Database 12c

Oracle Database 12c introduces significant new HA cap

– Drastically cut down planned and unplanned downtime

– Eliminate compromises between HA and Performance

– Tremendously boost operational productivity

These take Availability to unprecedented new levels

– Next-generation Maximum Availability Architecture (MAA)

– Optimized for Oracle

Extreme Availability


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Oracle Maximum Availability Architectu

Active Da

– Data Pro

– Query Of

GoldenG – Active-ac

– Heteroge

RMAN, Orac – Backup to ta

Active

Edition-based Redefinition,

Online Redefinition, Data Guard, GoldenGate – Minimal downtime maintenance, upgrades, migrations

RAC

– Scalability

– Server HA

Flashback – Human error

correction

Production Site Application Continuity – Application HA

Global Data Services – Service Failover / Load Balancing


5/405 Copyright © 2013, Oracle and/or its affiliates. All rights reserved.

Oracle Database 12cHigh Availability Key New Features

Application Continuity

Global Data Services

Data Guard Enhancements

RMAN Enhancements

Flex ASM

Other HA Enhancements

GoldenGate Update


6/406 Copyright © 2013, Oracle and/or its affiliates. All rights reserved.

Database outages canflight work to be lost, le

users and applications

Often leads to

User pains

Duplicate submiss Rebooting mid-tie

Developer pains

In-Flight Work: Dealing With OutagesCurrent Situation

Application

Servers

DatabaseServers

End User


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Solving Application Development Pain

Transaction Guard

A reliable protocol and API

that returns the outcome ofthe last transaction

New in Oracle Database 12c

Application Contin

Safely attempts to rep

flight work following oand planned operat


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Transaction GuardPreserve and Retrieve COMMIT Outcome

API that supports kn

outcome for every tr Without Transaction

failures – transaction

cause logical corrup

With Transaction Gu

applications can dea

with error situations,

improving end-user

Used transparently b

Application Continui

Application

Servers

DatabaseServers

End User


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Application ContinuityMasks Unplanned/Planned Outages

Replays in-flight work

recoverable errors

Masks many hardwar

network, storage erro

when successful

Improves end-user ex

productivity without recustom app developm

WebLogic Server 12c

advantage of the feat

configuration

Transaction Replayed

WebLogic

Servers

DatabaseServers

End User


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Application Continuity Global Data Services


RMAN Enhancements

Flex ASM Other HA Enhancements

GoldenGate Update


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Databases in Replicated EnvironmentsChallenges

No seamless way to euse all the databases

No automated load ba

and fault tolerance

Primary

Active Standby

Active Standby

GoldenGate


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• Extends RAC-style service f

balancing (within and acrosscenters), and management

a set of replicated database

• Takes into account network

replication lag, and service p

policies

• Achieve higher availability, i

manageability and maximize

performance

Load Balancing and Service Failover for Replicated Datab


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Reporting client routed to ‘b

– Based on location, response time,data lag

– Reports will automatically run on l

Reporting client failover

– If preferred database not available

another database in same region o

database

Global service migration

– Automatically migrates services b

failover/switchover - if primary dat

Call Center service on the new pri

Active Data Guard Example

Active Data Guard

Reporting Service

Call Center Service


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Call Center Client connectiorequests transparently route

closest / best database

– Runtime load balancing metrics giv

information on which database to is

If a database fails, its global

restarted on another replica

GoldenGate Example

GoldenGate

Call Center Service


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Global Data ServicesWebLogic Server Example

WebLogic

ApplicationsEurope

Eur.

Service

WebLogic Applications

North America

Eur.

Service

N.A.

Service

WebLogic Server application

Global Data Services using Afor RAC

Data service migrated becau

database management actio

WebLogic Server transparen

to migrated data service Applications seamlessly leve

Data Services for load balan

availability


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RMAN Enhancements


GoldenGate Update


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Zero Data Loss Challenge

The longer the distance, the larger the performance impac

Synchronous Communication Leads To Performance Trad

Primary S

Commit

Commit Ack

Network Send

Network Ack

D t G d A T d


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Primary ASYNC

Data Guard Async – TodaySome Data Loss Exposure Upon Disaster

A ti D t G d F S


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Far Sync: light-weight Oracle instance: standby control f

redo logs, archived redo logs, no data files

Receives redo synchronously from primary, forwards red

asynchronously in real-time to standby

Upon Failover: Async standby transparently obtains last

redo from Far Sync and applies: zero data loss failover

Second Far Sync Instance can be pre-configured to tran

reverse direction after failover/switchover

Terminal standbys required to be Active Data Guard Sta

Active Data Guard Far SyncZero Data Loss For Async Deployments

A ti D t G d F S


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Primary

Far Sync

Instance

Active Data Guard Far SyncOperational Flow

ASYNC

SYNC

Active Data Guard Far Sync


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Primary

Far Sync

Instance

Active Data Guard Far SyncOperational Flow (contd.)

No Compromise Between Availability an

ASYNC

SYNC

Zero Data Lo

Active Data Guard Far Sync


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Best data protection, least performance impact

Low cost and complexity

Best way to implement a near DR + Far DR model

Relevant to existing Data Guard ASYNC configurations

Data Guard Failover? No Problem! Just do it – No Data

Active Data Guard Far SyncBenefits


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RMAN Enhancements


GoldenGate Update


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1 0 1

0 1 0 1 0

1 1 1 0 1 0 0 1

1 0 1 1 0 1 1 1 1 0

0 0 1 0 1 0 0 0 0

1 0 0 1 1 0 1

1 0 1 0

0 1

Fine-grained Table Recovery From Bac

Simple RECOVER TABL

recover one or more ta

recent or older version)backup

Eliminates time and co

associated with manua

& export

– Enables fine-grained

recovery of individualthe contents of the enRMAN

Backups

Demonstration: RMAN Table Recovery


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RMAN Table Recovery

http://www.oracle.com/technetwork/database/features/availability/demonstrations

Demonstration: RMAN Table Recovery

Pl bl D t b B k & R t

http://localhost/var/www/apps/conversion/tmp/scratch_6/RMANTableRecovery.exehttp://localhost/var/www/apps/conversion/tmp/scratch_6/RMANTableRecovery.exe


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Backup and recover specific pluggable databases with new PLUGGABLE DATARMAN> BACKUP PLUGGABLE DATABASE , ;

Familiar BACKUP DATABASE command backs up CDB, including all PDBs

PDB Complete Recovery

– RESTORE PLUGGABLE DATABASE ;

– RECOVER PLUGGABLE DATABASE ;

PDB Point-in-Time Recovery

– RMAN> RUN {

– SET UNTIL TIME 'SYSDATE-3';

– RESTORE PLUGGABLE DATABASE ;

– RECOVER PLUGGABLE DATABASE ;

– ALTER PLUGGABLE DATABASE OPEN RESETLOGS; }

Familiar RECOVER DATABASE command recovers CDB, including all PDBs

Pluggable Database Backup & RestoreFine-Grained Backup & Recovery to Support Consolidatio

O l D t b 12


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RMAN Enhancements


GoldenGate Update

A t ti St M t (ASM) O


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Automatic Storage Management (ASM) O

ASM Cluster Pool of StorageDisk Group BDisk Group AShared Disk

Groups

Wide File Striping

One to One

Mapping of ASMInstances to

Servers

ASM Instance

Database Instance

RAC Cluster

Node4Node3Node2Node1 ASM ASM ASM ASM

ASM Instance

Database Instance

DB A DB A DBB DBBDBB

Current State

Fl ASM Eli i t 1 1 S M i


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Flex ASM: Eliminate 1:1 Server MappinNew: ASM Storage Consolidation in Oracle Database 12c

ASM Cluster Pool of StorageDisk Group BDisk Group AShared Disk

Groups

Wide File Striping

Databases share

ASM instances

ASM Instance

Database Instance

RAC Cluster

Node4Node3Node2Node1

Node1

runs as

ASM

Client to

Node2

Node1

runs as

ASM

Client to

Node4

Node2

runs as

ASM

Client to

Node3

ASM ASM ASM

ASM InstanceDB A DB A DBB DBBDBB

Fle ASM S pporting Oracle Database


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Flex ASM: Supporting Oracle DatabasePrevious Database Versions Will Host Local ASM Instance

ASM Cluster Pool of Storage

Disk Group BDisk Group AShared Disk

Groups

Wide File Striping

Databases share

ASM instances

ASM Instance

Database Instance

RAC Cluster

Node4Node3Node2Node1 ASM ASM ASM

DB A DB A DBB DBBDBB

ASM

11.2

DB

Oracle Database 12c


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RMAN Enhancements


GoldenGate Update



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Online Redefinition Enhan

Improved sync_interim_table

Ability to redefine table with VPD p

Improved resilience of finish_re

Better handling of multi-partition re


Online Datafile Move

Relocate a datafile while users are actively

accessing data: ALTER DATABASE MOVEDATAFILE …

Maintains data availability during storage

migration

Separation of Duties

SYSDG / SYSBACKUP: Data Guard & RMAN

specific administrative privileges

No access to user data: enforce security

standards throughout the enterprise

Additional Online Operatio

Drop index online / Alter index unu

index visible / invisible online

Drop constraint online / Set unused

Online move partition: ALTER TABPARTITION … ONLINE

Oracle Database 12c


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Application Continuity



RMAN Enhancements

Flex ASM


GoldenGate Update

Oracle GoldenGate 12c*


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Log-based

Changed Data

Oracle & Non-Oracle

Database(s)

Message Bus

Oracle Database12c *

Oracle GoldenGate 12cLow-Impact, Real-Time Data Integration & Transactional R

Data Integrator

New DB/

HW/OS/APP

Fully Active

DistributedDB

Reporting

Database

Data

Warehouse

ODS

Ze

Que

Data S

Rea

Event

Active

Message

Bus

Global

Data

Centers

Exact Copy

of PrimaryDN

*: GoldenGate 12c for Oracle Database 12c will be available in CY2013

GoldenGate Zero Downtime Migration/


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GoldenGate Zero Downtime Migration/Seamless Migration and Upgrades to Oracle Database 12

• Consolidate/migrate/

maintain systems withoutdowntime

• Minimize risk with

failback option

• Validate data before

switchover

• Use Active-Active

replication for phased

user migration

Nn-OracleERP

Oracle Database 12c

Non-OracleERP


Real-Time

ReplicationFor Migrations

Optional

FailbackData Flow

Oracle10.2CRM

Oracle11.2DW

Oracle GoldenGate for Active-Active D


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Oracle GoldenGate for Active-Active DIncrease ROI on Existing Servers & Synchronize Data

• Utilize secondary

systems for transactions

• Enable continuous

availability during

unplanned & planned

outages

• Synchronize data across

global data centers

• Use intelligent conflict

detection & resolution


Oracle Database 12c

Oracle10.2App2

Oracle11.2App3

Non-Oracle

App

Heterogeneous Bi-Directional

Real-Time Replication

Oracle Database 12c


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Oracle Database 12c

Oracle Database 12c offers a tremendously sophisticate

set of high availability (HA) capabilities

These capabilities

– Further reduce downtime

– Significantly improve productivity

– Eliminate traditional compromises

Visit http://www.oracle.com/goto/availability

for further information

Extreme Availability: Summary

Safe Harbor Statement

http://www.oracle.com/goto/availabilityhttp://www.oracle.com/goto/availability


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Safe Harbor Statement

THE PRECEDING IS INTENDED TO OUTLINE OUR GENE

PRODUCT DIRECTION. IT IS INTENDED FOR INFORMATPURPOSES ONLY, AND MAY NOT BE INCORPORATED IN

CONTRACT. IT IS NOT A COMMITMENT TO DELIVER ANY

MATERIAL, CODE, OR FUNCTIONALITY, AND SHOULD N

RELIED UPON IN MAKING PURCHASING DECISIONS. TH

DEVELOPMENT, RELEASE, AND TIMING OF ANY FEATU

FUNCTIONALITY DESCRIBED FOR ORACLE’S PRODUCT

REMAINS AT THE SOLE DISCRETION OF ORACLE.


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OracleDB HA 12cR1 Overview

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