Oracle High Availability Farooq Hussain

What is it ? C ontrolling systems availability L imiting downtime A voiding any data loss S ecuring the enterprise S ustaining business continuity CLASS

C ontrolling systems availability

L imiting downtime

A voiding any data loss

S ecuring the enterprise

S ustaining business continuity

CLASS

Why is it needed ? Anything can happen at anytime A single failure can be extremely costly Technologies need more resources Improvement in business processing

Anything can happen at anytime

A single failure can be extremely costly

Technologies need more resources

Improvement in business processing

How does it work ? Oracle Real Application Clusters (RAC) Multiple servers clustered using the same storage GRID : load balancing Always available Easily manageable Used in conjunction with Oracle Data Guard

Oracle Real Application Clusters (RAC)

Multiple servers clustered using the same storage

GRID : load balancing

Always available

Easily manageable

Used in conjunction with Oracle Data Guard

How does it work ? RAC Server 1 RAC Server 2 Shared Storage DB Instance SAN DB Instance RAC

How does it work ? DB SAN DB Instance RAC RAC Server 1 RAC Server 2 X FAILURE

How does it work ? Oracle Data Guard Data protection at it’s best When business data is critical Switchover vs. Failover Used in conjunction with RAC

Oracle Data Guard

Data protection at it’s best

When business data is critical

Switchover vs. Failover

Used in conjunction with RAC

How does it work ? Primary DB Standby DB Singapore Airport Singapore Discovery Centre Data Synchronization

How does it work ? Primary DB Standby DB F A I L O V E R Singapore Airport Singapore Discovery Centre X FAILURE

Oracle High Availability Saves business Saves time Saves money Saves you stress Don’t you want to feel safe ?

Saves business

Saves time

Saves money

Saves you stress

Don’t you want to feel safe ?

Q&A Q&A Farooq Hussain