RAHUL RANJAN

Project:

Optimized Cloud Storage Solution for High-Performance Applications

> Collaborated with the application team to understand the requirement of using absolute paths instead of traditional relative paths, ensuring seamless integration with their workflows.

> Analyzed storage latency requirements and cost factors to determine the most efficient and cost-effective solution.

> Evaluated multiple cloud storage solutions, including Dell EMC ECS, NetApp StorageGrid, and Ceph, to assess their suitability for high-throughput workloads.

> Selected Ceph to eliminate licensing costs and deployed it on commodity hardware, optimizing cost efficiency without compromising performance.

> Conducted benchmarking tests to validate Ceph’s ability to meet the application's high IOPS demand and scalability requirements.

> Implemented security features within Ceph to ensure compliance with regulatory requirements, making it a viable option for compliance-driven applications.




Project:

Cost-Effective and Scalable Block Storage Solution for PostgreSQL

> Designed a high-performance block storage solution for PostgreSQL, ensuring resiliency while optimizing cost.

> Conducted benchmarking tests to evaluate Ceph’s block storage capabilities, comparing its performance with traditional enterprise SAN solutions such as EMC and NetApp Ultron.

> Led a proof of concept (PoC) to perform feature-to-feature mapping between Ceph and traditional SAN solutions, validating its feasibility as a cost-effective alternative.

> Eliminated vendor lock-in and licensing costs by leveraging Ceph on commodity hardware, ensuring long-term flexibility and control.

> Conducted an in-depth study of potential challenges and failure scenarios, developing a robust knowledge base to handle operational issues proactively.

> Engaged and trained a team of engineers on Ceph’s architecture, deployment best practices, and ongoing support requirements.

> Designed an Ansible-based automation framework for deployment and scaling, making the solution fully operational and easy to manage.



Project:

Optimized SAP HANA Backup Solution with EMC Data Domain

> Designed a backup solution for SAP HANA using EMC Data Domain to address the challenge of large backup sizes and storage efficiency.

> Conducted a proof of concept (PoC) to evaluate Data Domain’s replication capabilities and its integration with SAP HANA Backint, ensuring seamless and certified backup operations.

> Leveraged Data Domain’s variable-length deduplication technology, reducing backup storage footprint by 10-30x, significantly optimizing storage costs.

> Implemented direct streaming backups from SAP HANA to Data Domain without third-party agents, simplifying operations and improving reliability.

> Ensured data security with end-to-end encryption (both in transit and at rest), meeting enterprise security standards.

> Integrated immutability and Retention Lock features to protect backups from accidental or malicious deletion, providing robust ransomware protection.

> Evaluated and implemented WAN replication to enable disaster recovery and ensure business continuity.
Ensured compliance with industry standards such as GDPR, HIPAA, and SOX, making the solution suitable for regulated environments.



Project:

Cloud Storage API Integration with Fastly CDN for High-Performance Content Delivery

> Designed and integrated a cloud storage endpoint API with Fastly CDN, leveraging edge caching to optimize performance.

> Delivered a high-performance backend solution for HTML content serving, enhancing the responsiveness of four major corporate websites and mobile applications.

> Replaced the traditional relative path logic with absolute paths, ensuring seamless and efficient data retrieval.

> Utilized CDN's point-of-presence (PoP) architecture to accelerate data access, reducing latency and improving user experience.

> Developed a cloud storage API consumption model to enable data replication between two geo-locations, ensuring high availability and performance for CGI teams.

> Optimized content delivery by leveraging Fastly’s global cache model, significantly reducing origin load and enhancing scalability.


Project :

Comprehensive Evaluation of Object Storage Requirements

> Led a rigorous, data-driven assessment of object storage solutionsto identify the most efficient and cost-effective option for criticalapplications.

> Conducted a detailed analysis of storage architectures,emphasizing the transition from relative paths to absolute pathsfor enhanced data accessibility and system stability.

> Executed amulti-phase proof-of-concept (PoC) across various object storageplatforms, benchmarking key performance metrics such as latency,throughput, and scalability.

> Based on extensive testing and real-world workload simulations, selected Ceph as the optimal solution,leading to significant licensing cost savingsStrategic



Project:

Corporate Website Hosting via Private Cloud S3 Storage and CDN Integration

> Designed and implemented a high-performance, scalable web hosting solution using S3 buckets in a private cloud to serve static HTML websites.

> Integrated the solution with a CDN for caching and optimization, significantly reducing load times and improving content delivery efficiency.

> Ensured secure API access, high availability, and automated deployments, enabling seamless content updates without manual intervention.

> Optimized storage and delivery mechanisms to enhance website performance while maintaining cost efficiency.

> Leveraged CDN capabilities to distribute content globally, ensuring a consistent user experience across different regions.



Project:

Migration of Ceph Object Storage from Bare Metal to Containers

> Designed and executed a Ceph migration strategy from bare-metal infrastructure to containerized deployments, optimizing resource utilization, performance tuning, and high availability.

> Developed compute sizing plans and container orchestration workflows, leveraging Kubernetes and Ansible for automated deployment and seamless transition.

> Conducted a comprehensive performance assessment using COSBench to validate that containerized Ceph could meet S3-compatible object storage performance requirements.

> Analyzed current storage usage through Ceph Dashboard, MinIO Console, and S3Bench to estimate object storage growth and capacity planning.

> Estimated Kubernetes resource requirements using kubectl top, Prometheus, and Vertical Pod Autoscaler, ensuring efficient scaling.

> Simulated containerized workloads with COSBench and FIO to benchmark storage performance before full-scale migration.

> Implemented Grafana and Prometheus for continuous monitoring post-migration, ensuring system stability and proactive performance management.



Project:

Expanding a Cloud Storage Cluster with Multi-Subnet Recognition for Seamless Scaling

> Scaled an existing Ceph-based cloud storage cluster that had reached capacity in a single rack, addressing traffic routing inefficiencies.

> Collaborated with the networking team to design a multi-subnet architecture, ensuring efficient data distribution and load balancing.

> Developed an Ansible playbook to automate subnet recognition and streamline cluster expansion without manual intervention.

> Enabled on-the-fly storage growth without downtime, ensuring continuous availability and operational resilience.

> Optimized network topology to improve latency, fault tolerance, and storage performance across multiple subnets


Project:

Automating OS Migration from CentOS 7 to Ubuntu for Enterprise Applications

> Developed and executed an Ansible-based automation framework to migrate critical enterprise applications from CentOS 7 to Ubuntu, ensuring minimal downtime and a seamless transition.

> Conducted a detailed migration plan, analyzing dependency management, application compatibility, package replacements, and system performance optimizations to mitigate risks.

> Automated OS provisioning, package installations, and configuration adjustments to streamline the migration process.

> Implemented rollback and validation mechanisms to ensure data integrity and service continuity post-migration.

> Enabled a scalable and repeatable migration strategy to support multiple environments with minimal manual intervention.

• Provided presales and implementation services for enterprise data protection solutions, including Data Domain, Avamar, and Networker
• Designed and deployed VCE (Vblock) and VMware solutions, ensuring seamless integration with existing IT environments
• Delivered technical presentations and solution demonstrations to customers, showcasing EMC’s software and storage capabilities
• Collaborated with program managers and project teams to define scopes of work and solution roadmaps
• Works on design and implementation from LLD level after HLD phase up, keeping the Approach Note (AN) in mind
• EMC product Suite skill: DPAD (Data Domain, Avamar, Networker) VCE (Vblock 300), VMware (Vsphere, esxi)
• Provides software related custom integration and implementation on EMC products at the critical backup site
• Performs moderately complex and/or extended-stay software implementations
• Successfully manages relations with Customers utilizing negotiation and influencing skills to acquire the internal and external resources necessary for optimal results
• Works with Program Managers, Project Managers and Solutions Architects in developing Scopes of Work and Project Plans
• May also occasionally support other activities as needed
• Maintains awareness of existing or potential customer software and machine situations
• Proactively alerts customer and manager of potential problems based upon strong working knowledge of software and hardware compatibility within the customer's environment
• Actively works to educate others in the region and nationally on potential problems and resolutions
• Stays current on technical specifications and hardware requirements of EMC software products, including new and soon to be released products
• Adheres to proper GS and PREM alert and escalation procedures
• Keeps appropriate management personnel informed in accordance to EMC policies

• Specialty was BACKUP EXEC and secondary skill was Netbackup
• SQL and Exchange were the core areas which integrates with Backup Exec
• Worked with global technical team for SYMANTEC BACKUP EXEC for Windows Servers and SYSTEM RECOVERY to design, implement and manage custom backup strategies and disaster recovery solutions in the production environments so that the organization’s downtime can be minimized and the last line of defense can be made more effective to keep the business up and running
• Backup Strategy designing by creating the online as well as offline backups (Cold Backups)
• Basic installation and setup of MS Exchange and MS SQL, to synchronize BEWS
• Creating all types of backup jobs such as Full, Incremental, Differential, and copy etc using backup job policies
• Also, creating the Disk-To-Disk, Disk-To-Tape and Disk-To-Disk-To-Tape backup jobs
• Creating synthetic backups using the Off-host backup technology
• Use of snapshot technologies such as VSS, VSP (from VERITAS) for taking the online backups
• Defining Backup windows as per the priority and criticality of data and scheduling the backup jobs using the Backup Exec Job Scheduler
• Managing and recycling the local data repository using Media Rotation Strategy in Backup Exec and planning for data protection using the offsite vaults
• Maintaining the complete system backups for disaster recovery situation
• Updating Knowledge Base articles for Product Enhancement and solutions
• Support related to backing up data on different storage devices such as Hard Disk Drives, Removable Drives, Tapes (Stand alone and Robotic Libraries), Network Attach Storage (NAS) and Storage Area Network (SAN)