Managing the resilience/cost balance

Key role(s)


Define DRP strategies with the best safety/cost trade-off


Improve IT efficiency

In the practice "3B1 - Template Management and Architecture Best Practices", we talk about the resilience/cost balance. But to go further, it is also necessary to review its Disaster Recovery strategy for each application and adapt it to the SLA according to the best compromise.

Scale of Different Disaster Recovery Strategies
Scale of Different Disaster Recovery Strategies
  • The Backup & Restore is the cheapest, perfectly adapted to applications that have a RTO/RPO of a few hours
  • The Pilot Light, it's when you have for example a "mirrored" database but with VMs off, a bit more expensive than a Backup & Restore it works for most applications that do not have extreme SLA requirements (less than 1h)
  • The Warm Standby, it's when the VMs are already running but with limited scalability, we are almost in real time but potentially in slightly degraded quality if incidentally
  • The Hot Standby Multi-Site, there we are totally resilient for real time SLAs. No loss of service is tolerated, but of course this has a cost.
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Management of templates and architecture best practices

ID 3B1

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Data backup policy

ID 3B3