OT backup and restore testing: prove the recovery path
Inventory the files and dependencies needed to recover a control system, set recovery objectives, and test restoration on an isolated target.
Recovery time objective (RTO)
The target elapsed time to restore an agreed service boundary after an interruption.
Define the service and the clock boundary with the system owner. Restoring files, starting a runtime and returning validated production to service are different milestones. Test dependencies and approvals as well as copy speed. The OT recovery guide describes how to preserve the evidence and limits of an exercise.
See also: Recovery point objective (RPO) · Mean time to repair (MTTR)
Use the concept: OT backup & restore test template · Cp, Cpk, Pp & Ppk calculator · Subnet calculator
In depth
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