A financial services company requires its critical online trading platform to have a Recovery Time Objective (RTO) of less than 10 minutes to minimize financial losses during an outage. Which disaster recovery strategy should a cloud administrator implement to meet this strict RTO requirement?
Establish a cold site with available rack space and power, ready for hardware to be shipped and installed.
Schedule daily snapshots of all servers to be stored in an object storage bucket in a different region.
Implement a hot site that is continuously synchronized with the primary production environment.
Configure a warm site with pre-staged hardware that can be provisioned when an outage is declared.
A hot site is a fully redundant, operational environment that mirrors the production site in near real-time. It allows for immediate or near-immediate failover, which is necessary to meet a very low RTO like 10 minutes. A warm site has pre-staged hardware but requires data restoration and configuration, taking hours or days to become operational. A cold site is a basic facility with power and cooling where infrastructure must be brought in and set up, resulting in a very long recovery time. Simply having daily backups in a different region is a data protection strategy, not a site recovery strategy, and would not meet the low RTO.
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