Transforming a Time-Intensive Manual Process into a Standardized, 15-Minute Automated Workflow

Overview

Disaster Recovery preparedness is only as strong as the reliability of the process used to validate it. A DR drill that takes days to execute manually with inconsistent steps and no standardized validation is not a drill. It is a liability.

This initiative modernized a traditionally manual Disaster Recovery (DR) drill process by introducing centralized automation and operational consistency across both Data Centre (DC) and DR environments. Using SaltStack, more than 16 critical operational tasks were automated including Oracle database operations, backup procedures, switch-over and switch-back activities, and application lifecycle management transforming DR drill execution from a multi-day coordination effort into a reliable, repeatable, 15-minute automated workflow.

Industry Challenges

Modern enterprises face significant operational difficulty when executing DR drills across distributed server environments. The key friction points in this engagement were:

• Manual Execution Across Multiple Servers: Traditional DR drills required administrators to manually perform recovery steps across numerous servers increasing execution time substantially and introducing meaningful risk of operational error at each step.
• Tooling Limitations in Secure Environments: Standard automation tools such as Ansible were evaluated but required dependencies including PowerShell and Windows Remote Management (WinRM), along with additional open network ports configurations that are routinely restricted within highly regulated banking infrastructure environments.
• Operational Complexity: Coordinating database operations, application services, and system-level tasks during a DR drill without a centralized orchestration mechanism created significant coordination overhead and execution risk.
• Reliability and Consistency Risks: Manual procedures made it impossible to guarantee that every DR drill followed the exact same sequence, directly impacting recovery readiness and compliance validation outcomes.

The Solution

The solution was implemented using SaltStack to automate the full DR drill workflow across both DC and DR environments, structured around a Master–Minion architecture.

1. Master–Minion Architecture: A Salt Master deployed on CentOS 9 communicates with multiple Linux and Windows minion servers through ports 4505 and 4506 requiring minimal configuration compared to tools dependent on PowerShell and WinRM. This architecture enabled centralized control and coordinated execution across the entire server estate without compromising the security posture of the banking environment.
2. Automated DR Drill Workflow via SLS Scripts SaltStack SLS files orchestrate the complete DR drill sequence, including stopping Tomcat application services, executing Oracle database backups, validating database roles across DC and DR environments, initiating the switch-over to the DR site, and starting the Managed Recovery Process (MRP). Following successful validation, the automation executes the switch-back procedure to restore all services to the primary Data Center.
3. Real-Time Execution Validation: Every step in the workflow generates automated execution outputs providing immediate, auditable confirmation of task completion without requiring manual verification on individual servers.
4. SaltGUI- Centralized Monitoring SaltGUI provided a graphical interface for monitoring job execution, managing minion servers, and tracking automation results across the entire DR drill operation in real time.

DR Automation Coverage

• Application Service Management: Automated stop and start of Tomcat application services via SaltStack SLS scripts eliminating manual intervention entirely.
• Database Backup: Automated Oracle database backup execution prior to DR switch-over ensuring data safety and consistency at every drill.
• Database Role Validation: Automated verification of primary and standby database roles across DC and DR environments delivering faster and more reliable validation than manual checks.
• DR Switch-Over: Automated transition of database operations from the DC to the DR site, including database switchover and recovery process initiation directly reducing recovery time.
• DR Switch-Back: Automated switch-back workflow execution to restore full operations from the DR environment back to the primary Data Center ensuring smooth, consistent restoration.
• Recovery Validation: Automated output logs and status reporting via SaltGUI providing immediate operational visibility into service, database, and synchronisation status.

Technologies Used

• SaltStack: Primary automation and orchestration platform for executing DR drill activities across multiple servers
• SaltGUI: Graphical interface for real-time job monitoring, minion management, and automation result tracking
• Salt Master–Minion Architecture: Centralized Salt Master controlling and executing automation tasks across Linux and Windows minion servers via ports 4505 and 4506
• SaltStack SLS Scripts: Automation scripts orchestrating the full DR drill workflow end-to-end

Impact Created

• Operational Efficiency: Over 16 DR drill tasks automated significantly reducing the manual effort required to coordinate activities across multiple servers and administrative teams.
• Dramatically Reduced Execution Time: DR drills previously requiring several hours or days of manual coordination can now be completed in approximately 15 minutes depending on data volume.
• Improved Reliability: Standardized automation ensures every DR drill follows a consistent, predefined workflow minimizing human error and delivering repeatable outcomes at every execution.
• Faster Validation: Automated scripts generate immediate execution outputs, eliminating the need for manual result verification on each individual server.
• Enhanced Recovery Readiness: Frequent, efficient, and consistent DR drill execution significantly improves organizational confidence in disaster recovery preparedness and operational resilience particularly critical in regulated banking environments.

Conclusion

Disaster Recovery preparedness demands more than backup infrastructure it requires reliable, repeatable validation processes that can be executed consistently, efficiently, and without dependence on manual coordination.

By implementing SaltStack automation, this organization transformed a traditionally effort-intensive DR drill process into a structured, centralized, and auditable operational workflow. Execution time dropped from days to 15 minutes. Human error was eliminated through standardization. And recovery readiness across both Linux and Windows environments was validated with confidence.

This engagement demonstrated that in highly regulated, security-constrained environments, the right automation framework does not compromise compliance. It strengthens it.

"A DR drill that takes days and depends on manual steps is not a rehearsal it is a risk. Automation turned that risk into a repeatable, 15-minute standard."