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Maximum Availability Architecture
with Oracle Database 11g Release 2
Michał Jerzy Kostrzewa
EECIS Database Director
Michal.Kostrzewa@Oracle.com

Component vs. Complete
Oracle
Database
3rd Party
Servers &
Storage
3rd Party
Applications
3rd Party
Systems
Software
Customer Integrated
ComponentArchitecture
Opportunity
Improve
service
and
lower
cost
Database
Application
Server
Applications
Clusterware
File System
Volume Manager
Exadata
Database
Machine
IntegratedSystemArchitecture
Oracle Integrated
Oracle
© 2010 Oracle Corporation

Storage Failure
Server Failure
Data Protection
Database Availability Challenges
Protect from planned and unplanned downtime
Site Failure
Human Error
Data Changes
System Changes
Storage Failure
Data Protection

Comprehensive Data validation and
protection
• Built-in checks detect and repair corruptions
– In data and redo blocks using checksum validation
– Detects writes acknowledged, but actually lost by the I/O subsystem
• Various levels of checks configured by administrators
– Choose the desired protection level (data / data + index blocks)

• Virtualize and shares storage resources
• Online addition and migration of storage
• Advanced data striping for maximum I/O performance
• Mirroring protects from disk failure
Automatic Storage Management
Low-cost protection from storage failure

Oracle Recovery Manager
Ensures valid database backup and restore
• Intrinsic knowledge of Oracle database file formats and
recovery procedures
– Block validation
– Online block-level recovery
– Unused block compression
– Online, multi-streamed backup
• Fully Integrated with:
– Oracle Secure Backup
– 3rd party backup tools

Data Recovery Advisor
Reducing downtime by eliminating confusion
• Automatically diagnoses data failures
• Intelligently determines recovery strategies
– Aggregates failures for efficient recovery
– Presents only feasible recovery options
– Indicates any data loss for each option
• Can automatically perform selected recovery steps
– Using Recovery Manager or Enterprise Manager

Storage Failure
Server Failure
Data Protection
Database Availability Challenges
Protect from planned and unplanned downtime
Site FailureData Changes
System Changes
Human Error

Flashback Error Correction / Total Recall
Fast Recovery From Human Error
Flashback
Database
Flashback
Transaction
Flashback
Table
Flashback
Query
• ‘Flashback’ operates on changed data only
• Reduces correction time from hours to minutes
– Correction Time = Error Time + f(DB_SIZE)
• Simple to use command instead of complex procedures
• Applies to all types of user errors

• Run all databases for all applications on shared platform
• Adapts to changes in workloads
• Highly available and scalable
• No changes required to applications
• Trimmed-down RAC One Node forr non-critical
databases
Real Application Clusters
Protecting from Server failure
SALES

• Dynamically assigns databases to groups of servers
• Unassigned servers go to spare pool
• Policy managed with Min/Max & relative importance
• Cluster reconfigures if a pool falls below its minimums
Dynamic Cluster Partitioning
via Server Pools
FRONT OFFICE SPARE BACK OFFICE

Oracle Data Guard
Protecting from Site Failure
• Best corruption protection for Oracle Database
• Automatic failover to standby database
• Software code path on standby different than primary
• Multiple Oracle corruption detection checks
Data Guard

Zero Data Loss Over Long Distance
Data Guard DR sweet spot
• Far enough to avoid regional disaster
• Close enough for zero data loss
• Uses order of magnitude less network messaging
than disk-based remote mirroring solutions
Data Guard
up to 300 miles

• Standby database in simultaneous read and recovery mode
• Offload read-only queries to an up-to-date physical standby
• Use fast incremental backups on a physical standby
Active Data Guard
Eliminating idle data center redundancy
Data Guard
Recovery Manager
Active Data Guard

Scale Out Reader Farm
using Oracle Active Data Guard
Primary
Database
Active Data Guard
Reader Farm
Application
Servers
L
O
A
D
B
A
L
A
N
C
E
R
Standby
Database

Oracle GoldenGate
The Oracle Solution for Information Integration
Capture
Delivery Capture
Delivery
Application
Source & Target
Region A
Source & Target
Region B
• Utilize multiple systems for transactions
• Enable continuous availability during unplanned and planned outages
• Synchronize data across data centers around the globe
Application

Oracle Maximum Availability Architecture
Remove the need for planned downtime
Add/Remove Storage
Table & Index Redefinition
Undo Human Error
Add/Remove Nodes
Rolling Patches & PSUs
Rolling Upgrades
Automated Upgrade Testing
Data Guard

Edition-based Redefinition
New in Oracle Database 11g Release 2
• Enables online application upgrade
• Code changes installed in the privacy of a new edition
• Data changes are made safely by writing only to new
columns or new tables not seen by the old edition
• An editioning view exposes a different projection of a
table into each edition to allow each to see just its own
columns
• A crossedition trigger propagates data changes made
by the old edition into the new edition’s columns, or (in
hot-rollover) vice-versa

Oracle GoldenGate
Ideal for Planned Maintenance
Capture
Delivery
Trail Files Trail Files
Capture
Delivery
Real-time changed data
Failback Data Flow
Application
Reconnect
Oracle
Database
8i/9i/10g
Oracle
Database
11g Release 2
Compare & Verify
• Upgrade/migrate with zero database downtime
• Verify data consistency
• Minimize risks with failback by using master-master replication

Recovery Manager
Active Data Guard
Oracle Maximum Availability Architecture
HA Best Practices Blueprint
Data Guard
Secure Backups to Cloud and Tape

Republic of Turkey Ministry of Justice
• Ministry of Justice of Turkey has established one of the most eco-efficient e-justice systems in the world, enormously reducing the
amount of paper used, carbon emissions and movement of people in the Turkish judicial system
• Reduced dramatically the processing times for legal cases, statistics, and correspondence—from hours or days to a few minutes
• Developed a centralized e-learning system that has educated 57,000+ employees to date inside the Turkish judicial system
• The SMS information system reduces CO2 emissions by minimizing movement of people , goods and the use of office supplies
• Saving 460+ tons of paper, 14,000+ tons of water, 800,000+ liters of fuel oil annually, compared to a paper-based environment
Business challenge Oracle solution
• Ensure a fast, reliable, accurate, and environmentally
sustainable judicial system by creating a completely
paperless working environment
• Increase the efficiency of judges and prosecutors
• Decrease the waiting times for citizens and lawyers
• Act in a socially responsible way by conserving natural
resources and minimizing the impact of the judicial
system on the environment
Results
• Foundation for the 70,000 practicing lawyers in Turkey
and the general public to interact with the judicial system
via internet by using e-signatures – no travels
• System that administers more than 35,000 users and
stores 452,857,657 electronic documents and more than
57 million electronic files
• Leveraged Oracle database technologies (Real
Application Clusters, Active Data Guard, Partitioning),
with deployment help from Oracle Partner Havelsan, to
achieve eco-innovation and eco-transparency
The Republic of Turkey Ministry of Justice administers 133 criminal court jurisdictions, 708 courthouses, 425 penitentiaries and
detention facilities, as well as 23 forensic medicine labs in 575 districts—covering, in aggregate, 7,751 courts, public prosecution
and law enforcement locations throughout the country. In 1999, the Ministry started implementing the ambitious e-justice system
UYAP (National Judicial Informatics System), which won the EU’s e-government award in 2009.
Customer profile

Polish National Police
(Komenda Główna Policji)
• Provided a central source of information, enabling prompt reaction to incidents, reliable information exchange, and swift
identification of perpetrators - research from different sources in a single dashboard, search based on fragments of data
• New, powerful capabilities to support criminal investigations, (search for leads and clues by comparative analysis of the details of
a crime in a given area, and to correlate this data with other information)
• Facilitated efficient distribution of forces and police resources
• Enabled management to view and compare all types of indicators, such as the number of crimes in a given area and their solved
or unsolved status, in real time
• Improve data transfer, storage, and processing rapidly
growing KSIP system, holding crucial police records for
things such as crimes, traffic incidents, identity checks,
and police activity
• Improve the performance and usability of KSIP and
optimize the resources available for promoting public
order and security
• Facilitate criminal investigations by implementing a
business intelligence solution enabling the police to
search and analyze the data stored on KSIP
Results
• Integrated data warehouse and analytical system,
creating a repository for unified data from KSIP to support
efficient and well-informed decision-making across the
organization , by implementing:
• Oracle Real Application Clusters
• Oracle Partitioning
• Oracle Advanced Security
• Oracle Business Intelligence Enterprise Edition
• Oracle Warehouse Builder Enterprise ETL
The Polish National Police employs more than 100,000 officers and 20,000 civil workers across its four divisions―criminal, crime-
prevention, support, and technical and logistical operations. It is financed through the national budget, with additional support from
local governments and the European Union. In 2000, the Police developed and implemented KSIP - unified information system that
connects all police stations in Poland to databases of criminals, stolen property, and wanted individuals.
Customer profile

Bosnia and Herzegovina
IDDEEA
• Oracle Identity Management to give staff role-based access to citizen data, sensitive data, and applications
• Implemented Oracle WebLogic Suite to deliver unbeatable performance and scalability for passport processes
• Used Oracle SOA Suite to modify processes and share citizen data seamlessly and securely with other government agencies
within BiH, the EU, and internationally
• ƒAutomated monitoring and maintenance across the technology stack using Oracle Enterprise Manager Grid Control
• Oracle Insight post implementation to endorse and validate IT strategy for maximum security and performance
• Upgrade infrastructure and data security to meet the
highest international standards as an official European
Union candidate
• Enforce data encryption, access control, monitoring, and
auditing processes for issuing the latest generation of
biometric passports beginning in 2012, in line with EU
member states
• Maximize public sector best practices and procedures
Results
• Complete software stack for maintaining continuity and
high availability while enforcing security
• Real Application Clusters to enables intensive
processing and ensuring continuity in event of site loss
• ƒActive Data Guardto reuse DR site for reporting
• ƒDatabase Vaultfor restricted access of privileged users
• Audit Vault security/compliance analysis and monitoring
• Advanced Security Encrypted data at sites to ensure
information is illegible to unauthorized viewers
IDDEEA (Agencija za identifikacione dokumente, evidenciju i razmjenu podataka BiH) is responsible for processing citizens
identifications numbers, identity cards, driving licenses, biometrical passports, vehicle registrations, and other identification
documents in Bosnia and Herzegovina (BiH).
Customer profile

For More Information
http://search.oracle.com
or
oracle.com/ha
high availability or MAA

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