availability webcast 10 27 v8

8/6/2019 Availability Webcast 10 27 v8

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Matthew Baier Joseph Meeks

Oracle Product Marketing Oracle HA Product Management

Maximize Database Availability and Performance


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Agenda

Data Protection and High Availability

Improve Performance using Idle Redundancy

Address Advanced Replication Requirements


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Problem: Data Loss and DowntimeActual Service Request from a Retail Brokerage Firm

ORA-01251 - Corrupted file header. This could becaused due tomissed read or write or hardware problem

orprocess external to oracle overwriting the

information in file header.


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Data Protection and High AvailabilityFor All Outages, Regardless of Cause

Site outage due to large-scale disasters

Fire, floods, hurricanes, earthquakes . . .

Local outages that occur more frequently Faulty system components

Data corruptions

Backup/recovery of bad data

Wrong batch job Operator errors

Planned maintenance

Faulty HW/SW installations, upgrades


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Oracle Data Guard 11gIncluded in Enterprise Edition Database License

Standby SitePrimary SiteData Guard

SYNC / ASYNC

PrimaryDatabase

Physicalor LogicalStandby

Database

Data Guard BrokerOracle Enterprise Manager


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Data GuardDatabase-Aware Physical Replication

Log Buffer

OnlineLogs

fil

ArchiveLogs

FlashbackLogs

ControlFiles

DataFiles

SYSTEMUSERTEMPUNDO

Primary Database Standby DatabaseNetwork I/O

Oracle Apply& Validation

End-to-end

validation

Storageagnostic

Automaticblock repair

Real-time

reporting


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Storage Remote Mirroring

Log Buffer

OnlineLogs

fil

ArchiveLogs

FlashbackLogs

ControlFiles

DataFiles

SYSTEMUSERTEMPUNDO

Primary Volumes Target Volumes

Network I/OOracle Apply& Validation

7X more

network volume

27X morenetwork I/Os

Zero Oracleawareness


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Data Guard Provides Best ProtectionBetter Isolation, Continuous Validation

FEATURE BENEFIT

Transmit directly from memory Isolate I/O corruptions

Standby uses different code path Isolate firmware/software errors

Multiple Oracle corruption checks Data is logically and physically consistent

Detect silent corruptions Data protection unique in the industry

Standby is always on Known state ready for production


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What Did the Brokerage Firm Do?

They had a Data Guard standby database

Corruptions isolated to the primary database

Zero data loss failover over to standby database

Resumed operation in minutes

Investigated & resolved h/w problems with no impact


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Polling Question

Has a storage failure ever resulted in unplanneddowntime for your critical databases?

Yes

No


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Data Protection AND High AvailabilityData Guard Automatic Failover

Events that trigger anautomatic database failover: Database down

Designated health-check

conditions Request from application

Automatic redirection of clientconnections to new primary Integrated role-based services

Automatically start/stop services

Fast Application Notification (FAN)

SYNC / ASYNC

Data

GuardObserver

Primary StandbySite A Site B


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Data Protection AND High AvailabilityAutomatic Failover

Observer detects failure

Failure state is confirmed withthe standby database

SYNC / ASYNC

DataGuard

Observer

Primary Standby

Site A Site B

Data

GuardObserver

Primary StandbySite A Site B


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Observer automaticallyexecutes failover

Standby becomes primary

SYNC / ASYNC

DataGuard

Observer

Primary Standby

Site A Site B

DataGuard

Observer

Primary Standby

Site A Site B

Data

GuardObserver

PrimarySite A Site B


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Observer automaticallyreinstates the failed primaryas a standby database

Built-in controls prevent anypossibility of a split-brainconditionSYNC / ASYNC

DataGuard

Observer

Primary Standby

Site A Site B

DataGuard

Observer

Primary Standby

Site A Site B

DataGuard

Observer

Primary

Site A Site B

SYNC / ASYNC

Data

GuardObserver

Primary StandbyPrimaryStandby

SYNC / ASYNC

Site A Site B


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0

10

20

30

40

50

60

Minutes

End-to End Failover Time

Resolve

Respond

Identify

AmazonUsing Data Guard Automatic Failover since 2007

BeforeData Guard

Data GuardAutomatic Failover

350 Data Guardconfigurations

150 are configured forautomatic failover


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Data center moves Technology refresh

32bit to 64bit

Windows to Linux

AIX 64bit to Solaris Sparc

Single node to Oracle RAC Migrating to ASM

Testing new features

Migrating to Exadata storage

System maintenance for single

node (non-RAC) databases

Unplanned AND Planned Downtime

Database rolling upgrades Other database changes

Index and storage changes

Implementing AdvancedCompression

Migrating to Secure Files

Migrating to Exadata - whenchanging database extent size

NEW

NEW

NEW


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Superior Protection AND Lower Cost

Data Guard runs on any storage

Different storage subsystems

Different vendors

Mixed primary/standby configurations


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Comprehensive AND Easier to ManageEnterprise Manager HA Console


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Polling Question

Which is the greater obstacle to implementingDisaster Recovery for your mission critical Oracledatabases?

A) Complexity

B) Cost

C) Other


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Agenda

High Availability and Data Protection




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Problem: Expensive, Idle RedundancyTraditional High Availability and Disaster Recovery

Veritas VolumeManager

BMCSQL Backtrack

HP ServiceGuardIBM HACMP

ProprietaryStorage Array

IdleFailoverServer

ProductionServer

Matching ProprietaryStorage Array

Idle DisasterRecoverySystems

EMC SRDF

Redundant systems & storage

Does it all work?Find out when you try to failover


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Active Oracle Data Guard 11gAn Option for Enterprise Edition

Standby SitePrimary Site

Data Guard

SYNC / ASYNC

PrimaryDatabase

ActiveStandby

Database

Read-writeWorkload

Real-timeReporting

FastIncremental

Backups


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Active Data Guard 11gOffload Read-Only Workloads to Standby Database

Standby SitePrimary Site

Data Guard

SYNC / ASYNC

PrimaryDatabase

ActiveStandby

Database

Read-writeWorkload

Real-timeReporting

FastIncremental

Backups


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0

500

1000

1500

2000

2500

3000

3500

Improve PerformanceFor all Workloads

Double read-writethroughput

70% increase in read-

only throughput

Eliminate contentionbetween read-writeand read-only

workload290

1,530

2,610

standby

630primary

Transactio

ns/sec

PrimaryOnly

R/O

R/W Primaryand Standby


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Active Data Guard Automatic Block Repair

Automatic detection and repair of corrupt blocks

Transparent to the user and application

Active StandbyDatabase

Improve AvailabilityDetect and Repair Corrupt Blocks

PrimaryDatabase

Read/WriteWorkload

Continuous redo

shipping, validation & apply

Real-timeReporting


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Active Data Guard Automatic Block Repair

Automatic detection and repair of corrupt blocks

Transparent to the user and application

Active StandbyDatabase

Improve AvailabilityDetect and Repair Corrupt Blocks

PrimaryDatabase

Read/WriteWorkload

Continuous redo

shipping, validation & apply

Real-timeReporting


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Discover Financial ServicesActive Data Guard User

Active Data Guard

Oracle RAC clusters

Remote data centers

Data Guard Maximum Availability

Recoup DR Investment

Impact of ad-hoc queries is isolated to active standby

Longer run windows for reports


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Polling Question

Do you have read-only workloads that could benefitfrom being offloaded to a standby?

Yes

No


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Agenda

High Availability and Data Protection




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Problem: Many Replication Requirements

Disaster recovery

Data integration

Many-to-one replication

Active-Active multimaster replication

Replication of data subsets

Transformations

Cross-platform migration


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Best-in-class datareplication

Broad support forheterogeneousplatforms

Flexible solution forminimal/zero downtimeupgrades andmigrations

Real-timeinformation

Real-time Access

Oracle Golden GateThe Oracle Solution for Information Integration


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When To UseActive Data Guard or GoldenGate

Active Data Guard GoldenGate

Disaster recovery, data protection, HA Information distribution, data integration

High performance, drop-in solution,support all data types & applications

Active-Active HA (avoid/resolve conflicts)

One-way, complete, physicalreplication, sync or async

SQL replication multimaster,transformations, subsetting, multipletopologies, asynchronous

Replica open read-only Replica open read-write

Database rolling upgrade/maintenanceGreat flexibility for planned maintenanceand cross-platform migrations


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Complementary SolutionsHA/DR + Production Offload + Heterogeneous Replication

Active Data GuardProductionDatabase

Data Guard Standby

Read-writeTransactions

Read-onlyWorkloads


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Complementary SolutionsHA/DR + Production Offload + Heterogeneous Replication

Active Data GuardProductionDatabase

Data Guard Standby

Read-writeTransactions

Read-onlyWorkloads

Capture

Source Trail

Delivery

Target Trail

GoldenGate Targets

* GoldenGate archive log mode (ALO)

(GoldenGate Source*)

GoldenGateReplication


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Two Ways to Buy Active Data Guard

Either:

Standalone an option for Oracle Database 11gEnterprise Edition

Or:

Included with Oracle Golden Gate License


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ResourcesHands-on Lab, Online via Amazon Cloud Services

Learn more about Database High Availability: oracle.com/ha

Active Data Guard Hands-On Lab (HOL) oracle.com/technetwork/database/features/availability/data-guard-hol-176005.html

Same experience as on-site HOL at Oracle OpenWorld 2010

Active Data Guard technical information

oracle.com/goto/dataguard


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Standby rarely used Always On

Idle redundancy Fully utilized redundancy

Offload workload to standbydatabase

Performancebottlenecks

To:From:

Why Oracle Active Data Guard

Low ROI High ROI


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Thank You for Attending

Maximize Database Availability and Performance

Save 15% on Oracle EnterpriseEdition Options at the Oracle Store

oracle.com/store

Enter promo code 11G at checkout

Offer valid through November 15, 2010
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availability webcast 10 27 v8

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