Recovery Time Objective (RTO) is the maximum acceptable time to restore a system after a disaster — how long you can be down. Recovery Point Objective (RPO) is the maximum acceptable data loss measured in time — how much data you can afford to lose. A hot standby site with synchronous replication can achieve sub-15-minute RTO and near-zero RPO. A cold standby with daily backups might have 72-hour RTO and 24-hour RPO.

We recommend a minimum of 100 miles of geographic separation to protect against regional disasters (hurricanes, earthquakes, flooding). For synchronous replication, distance is constrained by network latency — synchronous replication is typically feasible within 300 miles. Beyond that, asynchronous replication is required, which introduces RPO.

We recommend quarterly tabletop exercises (reviewing the runbook without actually failing over), semi-annual partial failover tests (failing over non-critical systems), and annual full production failover tests. Many compliance frameworks (SOC 2, ISO 22301) require documented evidence of DR testing.

Yes. AWS, Azure, and GCP all offer DR-capable services — VMware Cloud on AWS, Azure Site Recovery, and GCP Disaster Recovery. Cloud DR eliminates the capital cost of a secondary physical facility but introduces ongoing cloud consumption costs and requires careful network architecture to meet RTO targets.

NIST SP 800-34 (Contingency Planning Guide for Federal Information Systems), ISO 22301 (Business Continuity Management), and SOC 2 Trust Services Criteria (Availability) are the primary frameworks. Financial services firms may also be subject to FFIEC BCP guidance and DORA (EU Digital Operational Resilience Act).

A Disaster Recovery Plan (DRP) focuses specifically on restoring IT systems and data after a disaster — it is the technical playbook for recovering infrastructure. A Business Continuity Plan (BCP) is broader — it covers how the entire organization continues to operate during and after a disruption, including people, processes, facilities, and technology. The DRP is a component of the BCP. DCS Global develops both DRPs and BCPs, with the DRP providing the detailed technical procedures that feed into the broader BCP.

DR testing ranges from tabletop exercises (reviewing the plan with stakeholders, no systems involved) to full failover tests (actually failing over production systems to the DR site). In between are simulation tests (testing DR procedures in an isolated environment) and parallel tests (running DR systems in parallel with production to verify they work). NIST and most compliance frameworks require annual DR tests. DCS Global designs DR test plans, facilitates tests, and documents results and remediation actions.

Synchronous replication writes data to both the primary and DR site before acknowledging the write to the application — guaranteeing zero data loss (RPO=0) but adding latency proportional to the round-trip time between sites. It is practical only for sites within ~100km (to keep latency below 5ms). Asynchronous replication acknowledges the write at the primary site and replicates to DR in the background — allowing longer distances but accepting some data loss (RPO > 0). Most DR architectures use asynchronous replication with RPO targets of 15 minutes to 4 hours.

RTO is the maximum acceptable time to restore a system after a failure — the answer to 'how long can we be down?' Determining your RTO requires a Business Impact Analysis (BIA) that quantifies the cost of downtime per hour for each system (lost revenue, regulatory fines, reputational damage, operational impact). Systems with high downtime costs get aggressive RTOs; less critical systems can tolerate longer recovery times. DCS Global facilitates BIA workshops and translates business RTO requirements into technical DR architecture specifications.