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Oracle’s High-Availability Vision: What’s New in Oracle Database 11g Release 2Juan LoaizaSenior Vice President, Oracle System Technology

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Oracle High Availability Architecture

1. Scale-Out & Low-Cost– High-volume hardware– All components active

2. Application Oriented– Protect and recover application objects– Enable online application changes

3. Integrated & Simple– Availability integrated into all components– Automated

4. Complete & Open– Handles all planned and unplanned downtime– Pluggable components

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Oracle’s Database HA

Server Failures

Data Failures

System Changes

App Changes

UnplannedDowntime

PlannedDowntime

Data Changes

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Server Failures

Data Failures

System Changes

App Changes

UnplannedDowntime

PlannedDowntime

Real Application Clusters (RAC)

Best-of-Breed Server ProtectionAt Lowest Cost

Data Changes

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• Scale workloads across multiple low cost servers• Consolidate into fewer servers and databases• Runs all Oracle database applications• Built-in HA

HR SALES ERP

Real Application Clusters

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• A virtualized single instance database – Omotion - live migration of instances

across servers• Move services, then shutdown

transactional– Built-in cluster failover for high availability

• Better than OS level virtualization– Rolling database patches– Manage fewer Operating Systems

• 10 DBs on a node does not mean 10 Operating Systems to manage

– Rolling OS upgrades

New in 11.2RAC One NodeVirtualization Benefits for Oracle Databases

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Data Corruptions

Storage Failures

SiteFailures

Human ErrorsServer

Failures

Data Failures

System Changes

App Changes

UnplannedDowntime

PlannedDowntime

Data Changes

Best-of-Breed Data Failure ProtectionAt Lowest Cost

FlashbackRMAN

Oracle Secure Backup

ASMData Guard

Streams

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0

20

40

60

80

• Flashback revolutionizes error recovery– View ‘good’ data as of a past point-in-time– Simply rewind data changes– Time to correct error equals time to make error

Correction Time = Error Time + f(DB_SIZE)

• Low impact, easy – simple commands, no complex procedure• Flashback Query, Table, Transaction, Database, Drop• SQL> flashback database to <timestamp>;

• Enhancements in 11.2:• Flashback database performance & monitoring optimizations• Flashback archive support for schema evolution

Re

cove

ry T

ime

Traditional Recovery

Flashback

Flashback TechnologiesError Detection & Correction

New in 11.2

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Oracle Enterprise Manager

RMAN

Data Files

Fast Recovery Area

Tape Drive

Oracle Secure Backup • Intrinsic knowledge of database file

formats and recovery procedures• Block validation• Online block-level recovery• Unused block compression• Online, multi-streamed backup• Native encryption

• Recovery Manager (RMAN) manages Database Backup & Recovery

Cloud

Oracle Backup & RecoveryIntegrated Disk, Tape & Cloud Backup

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• Backup compression: popular way to save on storage

• Multiple RMAN backup compression levels– Choose between compression levels & backup

throughput• [BASIC] | HIGH | MEDIUM | LOW

New in 11.2Multiple RMAN Compression LevelsMore Cost Savings

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Oracle Enterprise Manager

Oracle DatabaseOracle Database

RMAN Integration

File System DataFile System Data

Oracle Secure Backup

Tape Library

Virtual Tape

Library (VTL)

Tape Backup for Oracle Environment

• Built-in Oracle Integration

• 25 – 40% faster than leading competition

• 4X less expensive than comparable products

• Supports Oracle Database 11g through Oracle9i

Oracle Secure BackupEnterprise Tape Backup Management

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Amazon S3

• Oracle Secure Backup Cloud module: Backup databases to Amazon Cloud– Complements local disk and/or tape backup– Eliminates IT management overhead of a disaster recovery site

Oracle Secure Backup Cloud

Module

Database Files / Fast Recovery Area

RMAN RMAN

Compression / Encryption

Oracle Secure Backup Cloud ModuleOffsite Database Backups in the Cloud

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3rd Party FSApplicationDatabase

ASM Disk

Group

• ASM dynamic volume manager supports file systems• ASM directly supports Clusterware files – Cluster Repository, Voting Disk• Built-in mirroring protects from disk failures• Enables auto-repair from corrupt blocks using a valid mirror copy

Automatic Storage Management (ASM)Stores & Manages All Data

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• Manage both database & file system data– E.g.: Oracle & Application binaries, trace

files, alert logs, BFILEs, image files, etc.

• Clustered or local file system– Data stored in ASM– Inherits all ASM manageability benefits

• Online disk add/drop/rebalance• Integrated mirroring• Cross-platform

• Read-Only Snapshots– Up to 63 point-in-time space efficient

copies of file system

• Linux and Windows only in first release

Shared File System

New in 11.2ASM Cluster File SystemOracle Management of File System Data

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Data Corruptions

Storage Failures

SiteFailures

Human ErrorsServer

Failures

Data Failures

UnplannedDowntime

Active-Active AvailabilityMinimizing Downtime During Site Failures

Data GuardGoldenGate

Streams

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Network

Broker

ProductionDatabase

LogicalStandby

SQLApply

Open R/O withActive Data Guard

Transform Redo to SQL

PhysicalStandby

DIGITAL DATA STORAGE

DIGITAL DATA STORAGE

Backup

Redo Apply

Sync or Async Redo Shipping

Boston

Chicago

Dallas

Open R/W forperipheral writes

Oracle Data GuardBest Disaster Recovery

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• Queries on standby database concurrent with apply• Available with Physical Standby in 11.1– Handles all data types, very fast, operationally simple

• Eliminates cost of DR– All hardware used for production load

PhysicalStandby Database

Primary Database

Real-time Queries

Continuous Redo Shipment and Apply

Concurrent Real-Time

Query

New in 11.1Active Data GuardOffload Queries to Standby

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Scalable Reader Farm

ProductionDatabase

Updates

Queries

Queries

Queries

Queries

• Up to 30 active standby databases

• Flexible options to scale read performance

• Add more active standby databases

• Scale active standby databases using Oracle RAC

New in 11.2Oracle Active Data GuardRead Scalability, with DR

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Active StandbyDatabase

PrimaryDatabase

Continuous redo shipping validation & apply

• Automatically repair block corruptions online • Primary repaired from standby and vice-versa

New in 11.2Oracle Active Data GuardAuto Block Protection

Read/WriteWorkload

Real-time Reporting

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• Use Standby Database for testing and development– Eliminates cost of DR– Justify full scale test and DR

environments by combining into one

• Preserves zero data loss while in test/dev mode– But no real time query or fast failover

• Similar to storage snapshots, but:– Provides DR at the same time– Single copy of storage

Physical Standby Apply Logs

Snapshot Standby Perform Testing

Open Database

Back out Changes

Continuous Redo Shipping

New in 11.1Snapshot Standby Test with Production Data Before Deployment

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StandbyDatabase

PrimaryDatabase

FAN enabled

JDBC and OCI

clientsWide Area Network (ASYNC)

• Automate client failover with role-based services and FAN

New in 11.2Oracle Data GuardBetter Application Availability

New PrimaryDatabase

Auto-start of primary database services

Fast notification of application clients

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Active StandbyDatabase

• Automatically enforce service levels for standby queries

PrimaryDatabase

Read/WriteWorkload

Continuous redo shipping validation & apply

• Query receives error if data delay exceeds SLA

• Applications can redirect query to primary

New in 11.2Oracle Active Data GuardEnsure Service Levels for Query Latency

Real-time Reporting

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• Additional Data Type support:– Basic Table Compression– OLTP Table Compression– SecureFiles• Without deduplication

– Online Table Redefinition– Extended data type support for SDO_GEOMETRY (SQL Apply)

New in 11.2Additional Data Type SupportBoth Data Guard SQL Apply & Streams

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• Critical Data Guard metrics reported on HA console

Comprehensive Data Guard MonitoringUsing Enterprise Manager 10g Release 5

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Apply1Capture

Apply2

Redo Logs

Non-Oracle Database

• Active-active databases with automatic conflict detection & optional resolution

• Provides HA for custom apps where update conflicts can be avoided or managed

Transparent Gateway

Propagate

Target Database

SourceDatabase

Oracle StreamsBuilt-in Oracle Database Replication Solution

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• Extended Streams - XStream– API for fast real-time access to changes in Oracle database– Client attaches directly to Streams apply process using OCI/Java

– Outbound server (XStream Out) • Stream changes out of the Oracle database

– Inbound server (XStream In) • Stream changes from external

sources into an Oracle database

XStream

New in 11.2XStreamFast Real-Time Programmatic Access to Data Changes

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• Performance optimizations of uni-directional Streams extended to one-to-many

• Faster transformations – Statement DML Handlers• Up to 4x faster than procedural DML handlers

– New Declarative Transformation - Keep Columns

• Extensive tuning throughout Streams

• Improved JMS integration and faster Streams Advanced Queuing – AQ dequeue is 30%-100% faster than previous releases

New in 11.2Better Streams Performance

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GoldenGate

• Best-in-class leader in real-time data solutions• Continuous Availability for heterogeneous

systems• Real-time data access for Reporting• Real-time data for BI, EPM, Exadata• Zero-downtime migrations / upgrades to Oracle

Database and Applications

• Over 400 customers with 4,000+ implementations across Fortune 500 companies: Financial Services, Communications, Healthcare, Public Sector, Retail & Utilities industries

• Top 3 of 5 largest commercial banks • Top 3 of 3 busiest ATM networks• Top 7 of 10 financial data services companies• Top 4 of 5 telecommunications providers• Top 3 of 5 largest food & drug stores

Real-time information

Real-time Access

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Databases O/S and Platforms

Capture: Oracle DB2 Microsoft SQL Server Sybase ASE Teradata Enscribe SQL/MP SQL/MX

Delivery - all listed above, plus: HP Neoview, Netezza, Greenplum, and

any ODBC compatible databases ETL products JMS message queues MySQL TimesTen

• Windows 2000, 2003, XP• Linux

• Sun Solaris

• HP NonStop

• HP-UX

• HP TRU64

• HP OpenVMS

• IBM AIX

• IBM z/OS

GoldenGate for Heterogeneous Platforms

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• GoldenGate is Oracle’s strategic replication solution• Streams continues to be a supported Oracle Database feature• Best Streams technology will be integrated into GoldenGate

GoldenGate and Streams

Oracle StreamsOracle GoldenGate

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GoldenGate and Data Guard

• Information Distribution & Consolidation, Application Upgrades & Changes– Use GoldenGate - heterogeneous, active-active, transformations, subsetting

• Disaster Recovery / Data Protection / HA– Simple Full Oracle Database Protection

• Use Active Data Guard• High-performance, simple, drop-in solution for HA and DR, readable at standby• Works for all apps and data types, including packaged apps that can’t be changed

– Application desiring flexible HA, active-active, schema changes, platform changes• Use GoldenGate• Avoid or manage active-active conflicts at application level

• Combine the two for full database protection and information distribution

Oracle Active Data

Guard

Oracle DB Primary Oracle DB Standby

Heterogeneous

Distributed

Fully-active

Subset

Replicas

Oracle GoldenGate

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Server Failures

Data Failures

System Changes

Data Changes

UnplannedDowntime

PlannedDowntime

App Changes

Best Online Planned MaintenanceAt Lowest Cost

Online ReconfigurationRolling Upgrades

Online Redefinition

Edition-based Redefinition

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• Servers– Add/Remove RAC nodes online– No data movement needed

• Storage– Add/Remove ASM disks or arrays online– Automatically rebalance after storage change

• Clusterware, ASM– Upgrade Oracle Clusterware and ASM (11g)

in an online manner

Database

Storage

Online ReconfigurationScaling on Demand

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Online Patching and Upgrades

• Most one-off patches can be applied to a running Oracle instance– Linux-x86, Solaris 10, HP-UX 11i– [New in 11.2] Windows 32-bit and Windows 64-bit, AIX v6.1 [TL2 SP1]

• More complex one-off patches can be deployed online using RAC rolling patches (available 10g onwards)

• Database release/patchset upgrades, operating system upgrades, platform migrations can be applied in rolling fashion using Data Guard / GoldenGate / Streams

• Data Center moves / SAN migration / Technology Refresh etc. can be done with minimal downtime using Data Guard / GoldenGate / Streams

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• All index changes can be done online– 11gR1 – table is never locked during online index creation

• Tables can be Reorganized & Redefined online– Allows changing location, table type, partitioning, columns, column types– Contents can be transformed as they are copied

Source Table

Update Tracking

Transform CopyTable

TransformUpdates

Result Table

Continuous Queries & Updates

Store Updates

Online Index & Table Redefinition

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Edition-based RedefinitionOverview

• Enables online application patches and upgrades

• Allows old and new version of application to co-exist even though schema is changed by new version

• Capabilities primarily used by application developers

New in 11.2

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• Maintains logical versions of changed database objects, through:– Edition– Editioning View– Crossedition Trigger

• PL/SQL code changes and view changes installed in the privacy of a new edition

• New data changes made to new columns/tables 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 edition’s columns, or vice-versa

Pre-upgrade Edition

New in 11.2

Post-upgrade Edition

CrosseditionTriggers

Edition-based RedefinitionHow Does it Work?

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End-to-End Availability

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Sun Oracle Database Machine

© 2009 Oracle Corporation - Confidential 40

• Grid is the architecture of the future• Highest performance, lowest cost, incrementally scalable

• Redundant and Fault Tolerant

• Sun Oracle Database Machine delivers the first and only complete grid architecture for all data management needs

Exadata Storage Server Grid• 14 High-performance storage

servers• 5TB flash storage• Data is mirrored across storage

servers

Oracle Database Server Grid• 8 High-performance compute

servers

InfiniBand Network• 40 Gb/sec fault-tolerant unified

server and storage network

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WANWAN

• Protection from– Server Failures– Storage Failures– Network Failures– Site Failures

• Real-time remote standby open for queries

• Human error correction – Database, table, row, transaction level

• Online indexing and table redefinition• Online patching and upgrades

Real Application

Clusters

Real Application

Clusters

ASMASM

Fast Recovery Area

Fast Recovery Area

Active Data Guard

Active Data Guard

Oracle Secure Backup

Oracle Secure Backup

Database Technology Drives Availability

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• Backup & Recovery– Backup shows extreme performance and scalability using Exadata– Full Database Backup to tape demonstrated at 7.8 TB/hr

Limited by tape performance of 14 tape drives used in test

– Incremental backup to tape at 10% change rate: 70TB/hr– Single RMAN backup channel runs full backup to disk at 2.5 TB/hr

• Data Guard– Full DR demonstrated with uncompressed loads over 2TB/hour – Compressed tables reduce redo & net traffic enhancing Data Guard• 5 TB/hour load rates with Data Guard into compressed tables

– 5 customers have implemented Data Guard on a Database Machine in first year

Database Machine HA Metrics

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Oracle High Availability Architecture

1. Scale-Out & Low-Cost– High-volume hardware– All components active

2. Application Oriented– Protect and recover application objects– Enable online application changes

3. Integrated & Simple– Availability integrated into all components– Automated

4. Complete & Open– Handles all planned and unplanned downtime– Pluggable components

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HA Sessions, Labs, & Demos by Oracle Development

Sunday, 11 October – Hilton Hotel Imperial Ballroom B

3:45p Online Application Upgrade

Monday, 12 October – Marriott Hotel Golden Gate B1

11:30a Introducing Oracle GoldenGate Products

Monday, 12 October – Moscone South

1:00p Oracle’s HA Vision: What’s New in 11.2, Room 103

2:30p Oracle Streams: What's New in 11.2, Room 301

4:00p Database 11g: Performance Innovations, Room 103

5:30p Comparing Data Protection Solutions, Room 102

Tuesday, 13 October – Moscone South

11:30a Oracle Streams: Replication Made Easy, Room 308

11:30a Backup & Recovery on the Database Machine, Room 307

11:30a Next-Generation Database Grid Overview, Room 103

1:00p Oracle Data Guard: What’s New in 11.2, Room 104

2:30p GoldenGate and Streams - The Future, Room 270

2:30p Backup & Recovery Best Practices, Room 104

2:30p Single-Instance RAC, Room 300

4:00p Enterprise Manager HA Best Practices, Room 303

Tuesday, 13 October – Marriott Hotel Golden Gate B1

11:30a GoldenGate Zero-Downtime Application Upgrades

1:00p GoldenGate Deep Dive: Architecture for Real-Time

Wednesday, 14 October – Moscone South

10:15a Announcing OSB 10.3, Room 300

11:45a Active Data Guard, Room 103

5:00p Exadata Storage & Database Machine, Room 104

Thursday, 15 October – Moscone South

9:00a Empowering Availability for Apps, Room 300

12:00p Exadata Technical Deep Dive, Room 307

1:30p Zero-Downtime DB Maintenance, Room 103

Demos Moscone West DEMOGrounds

Mon & Tue 10:30a - 6:30p; Wed 9:15a - 5:15p

Maximum Availability Architecture (MAA), W-045

Oracle Streams: Replication & Advanced Queuing, W-043

Oracle Active Data Guard, W-048

Oracle Secure Backup, W-044

Oracle Recovery Manager & Flashback, W-046

Oracle GoldenGate, 3709

Hands-on Labs Marriott Hotel Golden Gate B2

Monday 11:30a-2:00p Oracle Active Data Guard, Parts I & II

Thursday 9:00a-11:30a Oracle Active Data Guard, Parts I & II

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Complete List of New HA FeaturesOracle Database 11g Release 2Oracle Database 11g Release 1

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Data Guard

• Active Data Guard:• Online block repair• Query SLA

• Primary with 30 standbys• Parallel local & remote SYNC

transport• Retrieve remaining redo from

primary before failover• Improved client failover

• Role-based services• Broker support for ONS• Support auto-client failover

for logical standby for JDBC, OCI, ODP.Net

• No shutdown of RAC instances in old standby for switchover

• No shutdown moving from Max Availability to Max Protection

• Comprehensive support for compressed redo transport

Data Guard (contd.)

• SQL Apply support of OLTP Compression, SecureFiles, XA in RAC, Online Redefinition & Edition-based Redefinition, SDO_GEOMETRY (EDS)

• Use logical standby as Streams source

Streams

• XStream IN & OUT• Statement DML Handlers • Better infrastructure to track

changes to table data• New Declarative

Transformation: keep_columns

• Optimized one-to-many propagation

• AQ: Improved JMS integration & performance improvements

• Support of OLTP Compression, SecureFiles, Online Redefinition

RAC

• Server pools• RAC One Node• Omotion

ASM

• Cluster File System• OCR & Voting Disk in ASM

Flashback

• Flashback Database: better performance for direct loads

• Flashback Database: enable while database is open

• Flashback Database: better monitoring of progress

• Flashback Transaction: track foreign key dependency

Complete List of New HA FeaturesOracle Database 11g Release 2

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Online Patching & Upgrades

• Edition-based Redefinition using Edition, Editioning View and Crossedition Trigger

• Online Patching for Windows & AIX

RMAN

• Multiple compression levels• Target-less DUPLICATE• Optimized checks for

DUPLICATE• Expanded DUPLICATE

options• Enhanced tablespace point-in-

time recovery using transportable tablespace and Data Pump

• Improved flexibility of SET NEWNAME

• Faster transportable database

OSB 10.3

• Server-less tape duplication for VTL using NDMP tape copy

• Better automation for tape vaulting

• Support for IPv6 as well as IPv4

• Supports LTO-4 tape drive encryption

• Manages encryption key seamlessly between native or LTO-4 encryption

• More comprehensive backup / restore monitoring

• Verification of tape device configurations

Grid Control 10.2.0.5

• HA Console• MAA Advisor• Minimal downtime ASM

migration & RAC conversion• Streams dashboard and

improved monitoring of Streams configurations.

• Database Clone from existing database backups

• Comprehensive OSB management

• OSB File System Backup/Restore and reports

• Task based workflow for mining redo and archived logs

Complete List of New HA FeaturesOracle Database 11g Release 2

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Clusters• Better performance,

failover, management• Seamless integration with

XA and Microsoft Transaction Server

• Optimized Cache Fusion protocols

ASM• Temporarily freeze I/O to

unresponsive storage and replay writes when it returns

• Rolling Upgrade for ASM instances

Data Guard - Generic Snapshot standby Fast-Start Failover in secs Fast-Start Failover for

asynchronous mode Fast Redo Transport Redo Transport Compression

for gaps SYS user no longer required

for redo shipping Standby across

Linux/Windows on x86

Flashback Flashback Transaction Flashback Data Archive

Data Guard SQL Apply Support XMLType data

type (CLOB) Support Transparent Data

Encryption (TDE) Apply performance

improved significantly Support Fine Grained

Auditing Support Virtual Private

Database

Data Guard Redo Apply Active Data Guard New parallel media

recovery doubles redo apply performance

Fast Incremental Backup Better RMAN integration

Complete List of New HA FeaturesOracle Database 11g Release 1

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Upgrades• Online patching• Transient logical standby

Online Redefinition• Fast add column with default

value• Invisible Indexes prevent

premature use of newly created indexes

• Online index build with NO pause to DML

• No recompilation of dependent objects

• Easier to execute table DDL operations online

Streams Support XMLType data type

(CLOB) Support Transparent Data

Encryption (TDE) Apply performance improved

significantly Support AWR, ADDM, ASH Streams Performance Advisor Synchronous capture Table Data Comparison JMS/AQ performance

improvements

Backup & Recovery Data Recovery Advisor Intra-file parallel backup and

restore Faster backup compression Duplicate database over the

network Integration with Windows

Volume Shadow Copy Services (VSS) API

Integrated protection through ultra safe mode

Complete List of New HA FeaturesOracle Database 11g Release 1

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• General – Across the Platforms– Event Marker Infrastructure– Start Delivery as of CSN (Commit Sequence Number) for efficient instantiation– Enhanced Memory Management– Deferred Apply– Array Fetching to increase initial load performance

• Oracle– Additional data type support – Spatial, IOTs, Sequences, clustered table, object table– Support of Append hints (Apply only)– Increased Oracle DDL text maximum size to 2MB– Filtering by User for more efficient loop detection and capture task type separation (e.g. batch vs OLTP)– Expanded Support of ALO (Archive Log Only) mode for RAC environments

• SQL Server– SQL Server 2008 Delivery– Capture of tables without primary keys (SQL Server 2005)

• DB2 LUW– Support for Multi Dimensional Clustered Tables (MDC)– Support for Materialized Query Tables (MQT)

• NSK– Support of HP Blades– Support Primary Key Updates from Open Systems (e.g. Oracle to NSK)

• Teradata– Integration of Oracle GoldenGate Director with TMSM (Teradata Multi-System Manager)– Support of Teradata v13 – DDL replication– Support for additional platforms: Solaris 10, SUSE 9/10 – Full Unicode Support for Linux ODBC

Oracle GoldenGateKey Features in v10

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• Oracle.com:http://www.oracle.com/ha

• Oracle HA Customer Success Stories on OTN: http://www.oracle.com/technology/deploy/availability/htdocs/HA_CaseStudies.html

• Maximum Availability Architecture (MAA): http://otn.oracle.com/goto/maa

• MAA Assessment: http://www.oracle.com/goto/hasurvey

Resources

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AQ&Q U E S T I O N S

A N S W E R S

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search.oracle.com

or

oracle.com

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