Checklist

The checklist for the capture or requirements is as follows:

  • An organisational disaster management plan has been created that identifies key people, business functions, systems, and processes and put in place mitigations to cope with disaster.
  • The system is modifiable, and allows sufficient control to revert to earlier version in the event of failed upgrades
  • The data is backed-up at a frequency proportional to the rate of change of data and stored securely and in controlled conditions both offsite (disaster support) and onsite (quick restore)
  • The recovery media which includes data, source code, and duplicated hard copy materials is stored in a geographically different location which provides sufficient insulation from regional predicaments whilst still being workable in the event of s natural disaster or incident.
  • The recovery media is be stored safely, securely and in controlled conditions
  • All mission critical apps have a standby site maintained in an operationally ready state. This site is be capable of replacing the primary site and will be able to provide a hot fail-over capability.
  • Key roles are shared between different SMEs to aid recoverability in the case of staff turnover, injury or illness
  • An established methodology to test disaster management and recoverability on a periodic basis.

The checklist for architecture definition

  • Is a methodology to move from the current environment to the target environment defined?
  • Is a migration strategy to transfer the load to the target application defined?
  • Has an application backup procedure been identified?
  • Does the defined methodology allow reliable restoration of the systems in an acceptable timespan?
  • Will the operations team be able to monitor the application landscape in a runtime environment?
  • Do the ops team have a clear understanding of the processes they need to perform for the landscape?
  • Does the solution takes into account the time taken to recover from system failures?
  • Does the backup technique ensure integrity of restored data?
  • Does the backup technique support online backups, with acceptable performance degradation?
  • Has consideration been given for restoring data from corrupt or incomplete backups states?
  • Will the application be able to respond elegantly to errors and exceptions, logging and reporting them into the management and monitoring solution?
  • Is a standby site in the DR plan defined? Is the standby site identical to the primary site, or does it offer reduced performance?
  • Is the technique for switching from primary to standby site established?
  • Have you assessed the impact of the availability solution on functionality and performance? Is this impact acceptable?
  • Has the architecture been assessed for single points of failure and other bottlenecks?
  • Does the fault-tolerant model extend to all vulnerable components and modules?
  • Is the information movement process from the existing environment into the target environment documented?
  • Is there an outlined migration strategy to move the workload to the target system?
  • How will the landscape deal with data synchronization challenges?
  • Has the approach been identified to allow reliable system restoration in an acceptable time spans?
  • Does the backup technique provide for integrity of restored data?
  • Does the backup technique provide online backup model, with acceptable performance degradation?
  • Has attention been given to restoring data from corrupt or incomplete backups?
  • Is a standby site defined in the architecture? Is the standby identical to the primary site, or does it offer reduced performance?
  • Have you defined and QA'd the technique for swapping from production to standby environments?
  • Has the impact of the availability technique on functionality and performance been assessed and is it acceptable?
  • Has the architecture been assessed for single points of failure and weaknesses?
  • Does your fault-tolerant model extend to all vulnerable entities?
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