db maa tomkyte webcast april12 presentation

1 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.

Oracle Maximum Availability Architecture Best Practices Tom Kyte, Senior Technical Architect

Margaret Hamburger, Director Product Marketing


High Availability Business Problem Reducing Risk

DATA

• Are you vulnerable to data loss after any outage?

TIME

• How quickly can you resume operation after any outage?

COST

• Are all your systems utilized with no idle components?


Monetary

Impact!

Public Sector

Impact!

The Cost of Downtime Your Business Is At Stake

Cloud Services

Impact!


2012 IOUG High Availability Survey 358 participants

51% 47% 51% 66%

Network

Outages are

the leading

cause of

unplanned

downtime

Formal

business

continuity

and disaster

recovery plan

in place

Data growth

is greatest

challenge

followed by

Database

performance

Efficiency

and cost

savings

are top

Priority in

2012


• Oracle-optimized architecture to ensure high availability (HA) is maintained

for the Oracle stack despite planned and unplanned outages

• An extensive series of

technical HA best practices on

– Exadata Database Machine

– Oracle Database

– Oracle Fusion Middleware

– Oracle Applications

– Grid Control

– Partner solutions

http://www.oracle.com/goto/maa

Maximum Availability Architecture (MAA) Architecture + Best Practices


Storage Mirroring Traditional High Availability

• Limited protection from

physical data corruptions

or administrator errors

• DR systems are offline

during mirroring – NO

real-time data validation

• High network

consumption, manual

failover – NO rolling

upgrades

Database Instance

Database Storage

Primary Site: RAC: All Servers Active

DR Site: All Servers Inactive

Storage Mirroring


Edition-based Redefinition,

Data Guard, GoldenGate – Minimal downtime maintenance,

upgrades, and migrations

Production Site

RAC – Scalability

– Server HA

Flashback – Human error

correction

ASM – Volume Management

RMAN & Fast Recovery Area – On-disk backups

Active Data Guard – Data Protection, DR

– Query Offload

GoldenGate – Active-active

– Heterogeneous

Oracle Secure Backup – Backup to tape / cloud

Active Replica

Maximum Availability Architecture (MAA) Low-Cost, Integrated, Fully Active, High ROI


Oracle Database High Availability Software

Unplanned

Downtime

Planned

Downtime

Real Application Clusters (RAC)

Flashback

RMAN & Oracle Secure Backup

ASM

Data Guard & GoldenGate

Online Reconfiguration

Rolling Upgrades

Edition-based Redefinition

Ora

cle

MA

A B

est P

ractic

es

Online Redefinition

System

Changes

Application

Changes

Data

Changes

Server

Availability

Data

Availability


Server Availability & Scale Out

Unplanned

Downtime

Planned

Downtime

Real Application Clusters (RAC)

System

Changes

Application

Changes

Data

Changes

Server

Availability

Data

Availability


HR SALES FINANCE

• Scale workloads across low-cost servers

• Runs all Oracle database applications

• Consolidate into fewer servers and databases

• Built-in High Availability to support mission-critical workloads

Oracle Real Application Clusters (RAC)


Trafigura Guarantees Availability, Scalability, and Database

Performance across Global Trading Business

RESULTS

• Reduced storage cost associated with

archiving historical data

• Ensured compliance with Financial

Services Authority regulations

• Enabled traders to easily analyze past

performance and make better

informed decisions in the future

• Simplified management and

programming of data for audits to save

hundreds of work days

January 2012

“With Oracle Real Application

Clusters, we have unlimited

scalability and improved

performance. This scalability is

unique to Oracle. We could not have

achieved it with another vendor.”

– Dean Logan Wood, Global Head of

Database Technology, Trafigura


Unplanned

Downtime

Flashback

RMAN & Oracle Secure Backup

ASM

Data Guard & GoldenGate

Server

Availability

Data

Availability

Protection from

Data Corruptions

Protection from

Storage / Site Failures

Enabling Active-

Active Data Centers

Protection from

Human Errors

Oracle Database 11g Data Availability


• Flashback revolutionizes error correction:

– View ‘good’ data as of a point in time before error

• Time/work to rewind data depends on the work done

since the error happened, instead of the database size!

• Simple: SQL> flashback database to <timestamp>;

• Flexible: Flashback Query, Table, Transaction, Database, Drop

0

20

40

60

Correction Time = Error Time + f(DB_SIZE)

Oracle Flashback Fast, Granular Error-Correction


• Recovery Manager (RMAN): Oracle’s backup

& recovery infrastructure

• RMAN is aware of database file formats &

best recovery procedures, supporting:

– block validation

– online block-level recovery

– unused-block de-duplication

– online, multi-channel backups

– native encryption and compression

• Integrated disk backup: Fast Recovery Area

• Integrated tape and cloud backup:

Oracle Secure Backup (OSB)

Oracle Enterprise

Manager

RMAN

Data Files

Fast Recovery

Area

Tape Drive

Oracle Secure

Backup

Cloud

(Amazon S3)

Oracle Database Backup & Recovery


• ASM supports ALL data – database files, filesystems, Clusterware files (OCR, Voting Disk)

• Built-in mirroring protects from disk failures

• Enables auto-repair from corrupt blocks using a valid mirror copy

3rd Party FS Application

Automatic Storage Management (ASM)

ASM Cluster & Single Node File System (ACFS)

Database

ACFS Snapshot

ASM Disk

Group

DB Datafiles, OCR and Voting Files Oracle Binaries 3rd Party File Systems

Dynamic Volume Manager

ASM Instance Managing

Oracle DB Files

Automatic Storage Management (ASM)


• Data availability and data protection for the Oracle Database

• Up to thirty standby databases in a single configuration

• Standby database used for queries, reports, test, or backups

Active Data Guard

Standby Database Primary

Database

Sync / Async

Redo Transport

Data Guard Broker

Oracle Data Guard Best Data Protection


MetLife, Inc. Saves 37% Using

Disaster Recovery System CUSTOMER PERSPECTIVE

“Oracle Active Data Guard is not an idle

backup system waiting for a failure to occur; it

delivers real value every single day. We use

Oracle Active Data Guard to reduce IT

complexity―cutting the administrative effort

needed to support our PeopleSoft environment

by 25% and reducing maintenance costs by

37%.” Asha V. Santosh, Lead Database

Administrator

COMPANY OVERVIEW

• Leading global provider of insurance, annuities, and employee benefits programs for 90 million customers

• Industry: Insurance • Employees: 66,000 Revenue: US$65 million

CHALLENGES/OPPORTUNITIES

• Reduce IT complexity and management costs by streamlining the disaster recovery environment

• Optimize IT investment while ensuring a highly available disaster recovery environment to protect the insurer’s financial and operational information

• Ensure accurate financial reporting for annuity and life insurance lines of business to help the company meet stringent insurance industry compliance requirements

SOLUTIONS

• Oracle Active Data Guard • Oracle Advanced Compression

RESULTS

• Cut time for batch trail processing

and maintenance by 50%

• Reduced time for data transfer to

just three seconds

April 2012


Capture: committed transactions are captured (and can be filtered) as they occur by reading redo logs.

Trail: stages and queues data for routing.

Pump: distributes data for routing to target(s).

Route: data is compressed, encrypted for routing to target(s).

Delivery: applies data with transaction integrity, transforming the data as required.

Source

Oracle & Non-Oracle

Database(s)

Target

Oracle & Non-Oracle

Database(s) Bi-directional

GoldenGate: Active-Active Replication


GoldenGate

- Information Distribution

- Heterogeneous

Bi-directional

Replication Subsetting MySQL

Standby

Database

Active Data Guard

- DR & Data Protection

- Real-time Query

Primary

Database

RAC

- Scalability

- Server HA

Powerful Combination Integrated HA, Data Protection, Active-Active


Unplanned

Downtime

Planned

Downtime

Online Reconfiguration

Rolling Upgrades

Edition-based Redefinition

Online Redefinition

System

Changes

Application

Changes

Data

Changes

Server

Availability

Data

Availability

Best Online Planned Maintenance


• Servers

– Add/Remove RAC nodes online

– No data movement needed

• Storage

– Add/Remove ASM disks or

arrays online

– Automatically rebalance after

change

• Clusterware, ASM

– Upgrade Oracle Clusterware

and ASM in an online manner

Database

Storage

Online Reconfiguration Scaling On Demand


• Some one-off patches can be applied to a running

Oracle instance

– Linux-x86, Solaris 10, HP-UX 11i

– [11gR2] Windows 32-bit and 64-bit, AIX v6.1 [TL2 SP1]

• Many one-off patches deployed using RAC via rolling

• Rolling database release/patchset upgrades, OS

upgrades, platform migrations with Data Guard /

GoldenGate – See Support Note 1265700.1

• Data Center moves / SAN migration / Tech refresh,

with minimal downtime via Data Guard / GoldenGate

Online Patches & Upgrades


• All index changes can be done online

• Tables can be reorganized and redefined online with package DBMS_REDEFINITION

– Allows changing location, table type, partitioning, columns, column types

– Contents can be transformed as they are copied

Source Table

Update

Tracking

Transform Copy

Table

Transform

Updates

Result Table

Continuous

Queries &

Updates

Store Updates

Online Index & Table Redefinition


• Maintains logical versions of changed database

objects. Concepts:

– Edition, Editioning View, and Crossedition Trigger

• Code changes installed in a new edition

• New data changes made to new columns/table are

not seen by old edition

• Editioning view exposes a private projection of a

table into each edition

• Crossedition trigger propagates changes made by

old edition into new’s columns, or viceversa

• Capabilities used mainly by application developers Pre-upgrade Edition

Post-upgrade Edition

Crossedition

Triggers

Online Application Upgrades Edition-based Redefinition


Oracle Advanced Customer Support Services Mission Critical Support Services

Maximize availability, accelerate return on investment, and optimize performance

• Tailored mission critical support services for customers with complex IT requirements

• Advanced Support Packs combine unique Oracle Development and Advanced Support expertise with Oracle tools and best practices

• Advanced Support Engineers provide highly proactive and preventive support with diagnostic and monitoring tools to anticipate, identify, and remediate issues for all Oracle mission critical systems

• Strategic support relationships focused on collaborative, long term partnerships

94% of the “S&P Global 100” companies

94% of the Dow Jones STOXX 50*

78% of the global Fortune 100 companies

5 of the top 5 telecommunications companies

9 of the top 10 global banks

4 of the top 5 aerospace and defense companies

Companies that rely on

ORACLE ADVANCED CUSTOMER SUPPORT SERVICES:

*Europe’s leading Blue-chip index for the Eurozone


“Oracle ACS has contributed to our success by making the application available. In

addition, even when we had issues, they ensured that the system returned to service as

quickly as possible,” says Bryon Rickey, Director of Production Operations, AT&T. “ACS has

helped AT&T reduce unplanned downtime. We work with them well in advance, a few

months in advance, before any major releases. We work with them very closely and partner

with them to develop deployment and support plans. It has been very successful.”

Oracle Advanced Customer Support Services

Bryon Rickey,Director of Production Operations, AT&T

“AT&T Maximizes Availability with Oracle Advanced Customer Support Services”

video: http://medianetwork.oracle.com/video/player/739268633001

http://medianetwork.oracle.com/video/player/739268633001


WAN

• Comprehensive protection from failures: server, storage, network, site, corruptions

• Protection from human errors: database, table, row, transaction

• Active DR: Real-time remote standby open for query offload

• Online indexing and table redefinition

• Online patching and upgrades

Real Application Clusters

ASM

RMAN / Fast Recovery Area

Active Data Guard / GoldenGate

Oracle Secure Backup

MAA with Exadata Complete, Integrated Availability


MAA with Oracle Database Appliance

• Simple to implement

• Designed and priced to scale

• Performance improves as you scale

• Highest levels of serviceability

• Highest availability for this class of

machine

Ideal for SMBs and Departmental Systems


Maximum Availability Architecture HA Isn’t HA, Without MAA

Requirements MAA

Data Protection End-to-end Oracle validation

Fast Recovery Time Always on

Zero Risk You know its working

High ROI No idle systems

http://www.oracle.com/technetwork/database/features/availability/twp-databaseha-11gr2-1-132255.pdf

Upcoming Webcast

We invite you to attend our next Database Webcast on

April 26:

• A Smarter Approach to Database Storage Management

The registration link will be included in a follow up communication.

https://www.techwebonlineevents.com/ars/eventregistration.do?mode=eventreg&F=1004300&K=CAA1CC


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db maa tomkyte webcast april12 presentation

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