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Disaster Recovery Policy
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Disaster Recovery Policy
Identification of Critical Systems
Identification of Critical Systems
- A critical system is one that is required for the business operations to continue causing significant damage to the business.
- Your disaster recovery policy should identify the critical systems within the organisation.
- For each critical system it should also identify:
- RPO - the amount data that is acceptable in being lost after a disaster.
- RTO - the acceptable time frame for the system to be recovered after a disaster.
Prevention, Response & Recovery Strategies
Prevention, Response & Recovery Strategies
- This involves defining each of the following information for our critical systems:
- People responsible
- Facilities and equipment required
- Data backup location and format
- Network connectivity and bandwidth
- Suppliers of equipment and people
- In addition, we should define the recovery procedure (the actual process for recovering the systems) for each critical system.
Disaster Recovery Plan Structure
Disaster Recovery Plan Structure
- There are many standards out there for the structure of a disaster recovery plan.
- The most common two for this are:
- ISO 27031 - a standard specifically for a technology disaster recovery process.
- ISO 24762 - a standard providing guidance on choosing ICT disaster recovery services.
- These standards can be summarised into the structure on the next slide.
Disaster Recovery Plan Structure
- Introduction – the purpose of the disaster recovery plan & objectives to be achieved.
- Roles and responsibilities – contact details of DR team & who will perform what tasks & when.
- Incident response procedures – the initial actions to be taken in the event of a disaster.
- Activating the disaster recovery plan – details on what must occur for activating the plan and how the DR team should be activated.
- Procedures to be followed – the actual process to be followed by the DR team to perform the successful recovery.
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