Lecture 12 - Design-implement-maintain recovery solution

Recovery solution up to date backup and recovery

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Recovery Solution
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Up to Date Backup and Recovery Solution Elements Three distinct elements that should incorporate in these procedures are: Maintenance Auditing Testing 36
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Maintenance of the Solution Purpose: to provide a mechanism for updating the recovery solution when changes are made to the environment Changes that affects the solution: New applications development Current hardware configuration changes Network changes Organizational changes 37
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Plan Auditing Purpose: to determine if the DRP document was updated and changed. Should be audited on a semi- annual or annual basis. 38
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Plan Auditing Considerations should be taken: Documents should not all be taken for audit at the same time All audited documents should be returned to the holder within 24 hours Documents should be audited against the DRC’s copy etc 39
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Plan Testing Purpose: to tell if the maintenance procedures are working Benefits that can be derived from testing procedure are: Knowledge that the recovery plan works Discovery of problems, mistakes and errors which can be resolved 40
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Plan Testing Benefits that can be derived from testing procedure are: Training of employees in executing tests and managing disaster recovery situations Making the recovery plan a “living” document Raising awareness in all parts of DP organizations regarding the necessity of DRP 41
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Plan Testing Types of testing: Active Passive Steps: Problem escalation Disaster declaration procedures Assembling the teams 42
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Plan Testing What should be involved in the testing plan? Frequency of tests Test levels Activities before test Acceptance criteria Execute the test After the test 43
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Circumstances May Restrict the Ability to Test the DR Concept Reliability of the network Disk space Interdependencies between applications Hardware configuration at the alternate site Involve with the running system during testing 44
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Conclusion One of the most critical elements of any disaster recovery plan is the creation and maintenance of system backups. Backups should include not only the organization’s critical software as well. To implement a DRP, a company typically uses outside services such as a shared-site arrangement or third-party vendor to replicate critical data processing services. 45
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Conclusion Several alternatives are hot-site, cold- site and warm-site arrangements. Which Disaster Recovery Site Strategy Is Right for You? Be sure to factor in business objectives and continuity needs before making an investment The plan must thoroughly tested testing techniques such as simulation or parallel testing. 46
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  • Spring '16
  • Backup site, Business continuity and disaster recovery

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