What it protects against
Power failure, water, fire and earthquake, all rare and all possible. And ransomware, where a properly thought-through disaster recovery plan is the difference between days and weeks.
And against hardware defects.
Where we start
With two numbers. RPO, how much data loss is acceptable, and RTO, how long it may take to be running again. Both have to be verified and signed off with the stakeholders, because they carry the whole architecture and are not a technical quantity.
After that we classify and prioritise data and systems. Not everything needs the same number, and trying to treat everything alike is the most common reason a plan becomes unaffordable.
How the design comes together
It accounts for the workloads in your datacentres and in your public clouds, along with availability and performance requirements. Site choice feeds in too: where your datacentres and cloud regions sit partly determines what is possible at all.
Implementation and testing
We build on Zerto and Veeam. Both allow the real event to be rehearsed: virtual servers can be started in a sandbox at the recovery site and checked without touching production.
We schedule those tests regularly, with the system administrators and the affected departments. Without them it stays open whether recovery works inside the agreed time.
The recovery itself runs automated: order, network switch-over and system start are stored in the tool and are not carried out by hand in an emergency. The goal is that the company can keep working after the event.

