Ramesh Kumar B. Disaster Recovery Planning (brief)
Business Continuity, Disaster Recovery Planning <ul><li>  </li></ul><ul><li>Disaster recovery planning </li></ul><ul><ul><...
DIFFERENCE  BETWEEN  BREAKDOWN & DISASTER <ul><li>Breakdown causes small disruptions which can be rectified within a predi...
Disaster Recovery All Main servers at will have one back up server. Primary data & Application server and a back up server...
Client Primary Server Mirrored Data Data Replication Remote Standby Server Mirrored Data Data Replication Local Standby Se...
Client Primary Server Mirrored Data Data Replication Active Server Mirrored Data Data Replication Local Standby Server Loc...
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Disaster Recovery in Brief

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Good Disaster Recovery plan ensures your position in the company :-)

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Disaster Recovery in Brief

  1. 1. Ramesh Kumar B. Disaster Recovery Planning (brief)
  2. 2. Business Continuity, Disaster Recovery Planning <ul><li>  </li></ul><ul><li>Disaster recovery planning </li></ul><ul><ul><li>Plan in place to recover from a disaster or interruption of key services. </li></ul></ul><ul><ul><li>The plan includes: </li></ul></ul><ul><ul><ul><li>Have business continuity and disaster recovery policy in place </li></ul></ul></ul><ul><ul><ul><li>Study Business impact analysis </li></ul></ul></ul><ul><ul><ul><li>Training and awareness </li></ul></ul></ul><ul><ul><ul><li>Testing </li></ul></ul></ul><ul><ul><ul><li>Simulated testing </li></ul></ul></ul><ul><ul><ul><li>continuous Monitoring </li></ul></ul></ul><ul><li>Business continuity planning </li></ul><ul><ul><li>Reduce organization's business risk from unexpected disruption of critical functions and operations </li></ul></ul><ul><ul><li>Factors that influence include: </li></ul></ul><ul><ul><ul><li>System vulnerabilities & threats </li></ul></ul></ul><ul><ul><ul><li>Data backup (onsite & offsite) </li></ul></ul></ul><ul><ul><ul><li>System backup (onsite & offsite) </li></ul></ul></ul><ul><ul><ul><li>Management of system performance and capacity </li></ul></ul></ul><ul><ul><ul><li>Disruptions to web access, Applications, internal systems, telecommunications etc </li></ul></ul></ul><ul><ul><ul><li>Natural disasters and other interruptions </li></ul></ul></ul><ul><ul><ul><li>Fail-over & redundancy of System & Data </li></ul></ul></ul>
  3. 3. DIFFERENCE BETWEEN BREAKDOWN & DISASTER <ul><li>Breakdown causes small disruptions which can be rectified within a predictable time frame. </li></ul><ul><li>Disaster has much larger ramifications and longer time for recovery. </li></ul><ul><li>Types of Disasters: </li></ul><ul><ul><li>Traditional </li></ul></ul><ul><ul><ul><li>(Fire, Flood, Earthquake) </li></ul></ul></ul><ul><ul><li>Non-Traditional </li></ul></ul><ul><ul><ul><li>(Power failure, Strike, Arson, Terrorism) </li></ul></ul></ul>
  4. 4. Disaster Recovery All Main servers at will have one back up server. Primary data & Application server and a back up server at Client’s site. Another disaster recovery server at our site. All data may be replicated to remote backup server in a geographically different server if required. Local site can have two back up servers. If the sites are in sensitive areas, 3-Node scheme may be followed. Depending on crash the data to be restored from less than 15 min to 1 hour or more depending on situation. Client Primary Server Standby Server Mirrored Data Data Replication 2-Node Disaster Recovery Active Server
  5. 5. Client Primary Server Mirrored Data Data Replication Remote Standby Server Mirrored Data Data Replication Local Standby Server Local Site Active Server 3 Node Disaster Recovery
  6. 6. Client Primary Server Mirrored Data Data Replication Active Server Mirrored Data Data Replication Local Standby Server Local Site Data Replication Active Server When a site failure occurs The application data is already on the remote server so the application is able to migrate to the remote site. Disconnect local servers. Activate a new application using the remote server. Note:Presumption is that the site has a good internet connectivity. 3 Node Disaster Recovery – with Site Failure

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