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Disaster Recovery Planning & Implementation

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Shuvojit Kar
I'm energetic, ambitious person who has developed a mature and responsible approach to any task that I undertake, or situation that I am presented with. I am excellent at working with others to achieve a certain objective on time and with excellence. Customer Engineer| Al/ ML |AI Infrastructure | Cloud Migration |Technical Solution| Vertex AI| Cloud Database |Cloud Networking |DevOps Engineer| Technical Blogger| Generative AI| Google Cloud Ready Facilitator 🌐Linux Linux Professional Institute Certificate Technical Writer \ Cloud Networking Cloud Computing \ Cloud Infrastructure Cloud Consultant \ Customer Engineer 🌐Virtualization - VMware, vSphere, vCenter Server 🌐Programming Skill Technical Skills Proficiency in languages like Java, Python, Scala, or JavaScript. System Administration: Experience with Linux/Unix systems, Windows Server. Networking: Understanding of network protocols, routing, VPC, Subnets, Firewalls, VPNs, Load Balancers, switching, and firewall configurations. Cloud Platforms: Experience with AWS, Azure, or Google Cloud Platform. Databases: Knowledge of SQL and NoSQL databases like MySQL, PostgreSQL, MongoDB. Scripting: Ability to write scripts for automation using Bash, PowerShell, or similar. Monitoring and Logging: Familiarity with tools like Nagios, Prometheus, Grafana, ELK Stack. Configuration Management: Experience with tools like Ansible, Puppet, Chef. DevOps: Knowledge of CI/CD pipelines, Jenkins, Docker, Kubernetes. Security: Understanding of security best practices and tools, Cloud security best practices, IAM, Security Groups, Compliance. Infrastructure as Code: Terraform, CloudFormation, Ansible Compute Services: EC2, GCE, Azure VMs. Storage Solutions: S3, GCS Customer Service Skills:- Communication: Strong verbal and written communication skills. Problem-Solving: Ability to diagnose and resolve technical issues efficiently. Interpersonal Skills: Building and maintaining relationships with clients. Training and Education: Ability to conduct training sessions for clients. Project Management: Managing customer projects and ensuring timely delivery. Knowledge/experience in configuring and supporting devices such as Cisco, Juniper, Checkpoint, etc. Knowledge Cloud Migration, Presale, Data Center relocation, Go-to-Market Strategy. Certifications: AWS Certified Solutions Architect Microsoft Certified: Azure Solutions Architect Expert Google Professional Cloud Architect Certified Kubernetes Administrator (CKA)

Environment: Google Cloud Platform (GCP), GCS, Compute Engine, Cloud Functions, Terraform

Project Overview

A global e-commerce provider required a robust Disaster Recovery (DR) strategy to ensure business continuity in the event of regional failures, system corruption, or major outages. The client's goal was to meet stringent RTO/RPO requirements while minimizing infrastructure overhead and cost.

Objectives

  • Design a scalable, cost-efficient DR solution across multiple GCP regions.

  • Automate snapshots, backup storage, and restoration workflows.

  • Validate RTO (Recovery Time Objective) and RPO (Recovery Point Objective) through simulations.

  • Implement monitoring, alerting, and compliance-aligned reporting.

Key Responsibilities & Solutions

✅ DR Strategy Design

  • Developed a multi-region DR architecture leveraging:

    • GCS for durable, geo-redundant object storage of snapshots and backups.

    • Compute Engine instance templates to allow quick VM provisioning in DR regions.

    • Cloud DNS failover for seamless traffic redirection.

✅ Backup & Snapshot Automation

  • Created scheduled automated disk snapshots for mission-critical VM instances using Cloud Scheduler + Cloud Functions.

  • Snapshots were mirrored to secondary regions using Storage Transfer Service and lifecycle rules for cost optimization.

✅ Failover & Recovery Orchestration

  • Used Terraform and Deployment Manager templates to replicate infrastructure stacks quickly in a secondary region.

  • Developed runbooks and automation scripts for failover initiation, minimizing human error.

✅ Simulation & Validation

  • Conducted DR simulation drills quarterly, including:

    • Manual region failovers.

    • Data restoration validation.

    • Simulated app recovery under peak load conditions.

  • Monitored performance against agreed RTO (<2 hours) and RPO (<15 minutes) targets.

✅ Compliance & Reporting

  • Aligned solution with ISO 27001 and SOC 2 requirements.

  • Generated DR test reports for auditors and stakeholders.

  • Enabled alerts and audit logs for all backup/restore activities using Cloud Logging and Security Command Center.

Outcomes & Impact

  • Achieved RTO of 1.5 hours and RPO of 10 minutes, exceeding business SLAs.

  • Ensured 100% data durability with redundant regional backups.

  • Reduced potential downtime cost by over $500K annually.

  • Strengthened compliance posture with documented, testable DR workflows.

  • Empowered the IT team with automation, reducing manual intervention during crisis events.

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