Maharashtra State Electricity Distribution Company Limited (MSEDCL)

Migration of the MSEDCL Apps from JDK to Corretto procedure during the shift for top-notch outcomes.

Maharashtra State Electricity Distribution Company Limited (MSEDCL)

Migration of the MSEDCL Apps from JDK to Corretto procedure during the shift for top-notch outcomes.


Challenges faced by MSEDCL in migrating their IT infrastructure and managing their data center:

1. Legacy Application Migration:

  • Moving old applications from physical servers to AWS cloud without business interruption.
  • Ensuring smooth transition and compatibility of applications in the new environment

2. Data Center Integration and Disaster Recovery:

  • Difficulties in integrating data centers and establishing disaster recovery capabilities at multiple locations.
  • Ensuring seamless data replication, backup, and recovery across different sites.

3. Hardware Scalability:

  • Challenges in scaling the hardware infrastructure to accommodate growing workloads and application demands.
  • Ensuring sufficient computing resources to handle increasing data processing requirements.

4. Outdated HP Unix Configuration:

  • Using an outdated HP Unix configuration due to the high expenses associated with upgrading.
  • Limitations in performance, support, and compatibility with modern technologies.

5. Patch Management:

  • Managing a large inventory of assets and facing challenges in patching and updating systems.
  • Ensuring timely application of security patches to address vulnerabilities and maintain system stability.

6. Uptime and Hardware Flexibility:

  • Migrating to a cloud environment to achieve a 99.99% uptime and gain flexibility in selecting preferred hardware.
  • Emphasizing the ability to leverage pay-and-use services for better resource allocation.

7. Latency and Downtime:

  • Facing significant problems with latency and downtime due to unsupported/out-of-warranty HP-UX systems.
  • Misconfigured network settings affecting system performance and availability.

8. Unstable and Overutilized Hardware:

  • Multiple Oracle, MS SQL server, SAP Sybase ASE, SAP ECC, and SAP Hana database servers running on unstable and overutilized hardware.
  • Performance bottlenecks, system crashes, and resource constraints affecting data processing capabilities.

9. Data Encryption and Backup:

  • Data encryption not set up correctly, potentially exposing sensitive information to security risks.
  • Unreliable and unstreamlined on-premises backup and restore plan compromising data availability and reliability.

10, Access Control and User Management:

  • Inadequate access control mechanisms, user management practices, and security management processes.
  • Possibility of unauthorized access, data breaches, and compromised system integrity.


Solutions deployed by Orient to address the challenges and optimize MSEDCL's IT infrastructure:

1. Operating System Migration:

  • Transitioned from HP Unix to SUSE and Ubuntu on AWS to leverage modern, optimized operating systems.
  • Specifically migrated SAP applications from HP Unix to SUSE for improved performance and compatibility.

2. Server Block-to-Block File Movement:

  • Implemented Linux-based server block-to-block file movement for efficient and secure data transfer during the migration process.

3. Staged Migration Strategy:

  • Created a staged migration strategy for different application groups to ensure a smooth and controlled transition to the cloud environment.
  • Ensured proper sequencing and testing of migrations to minimize disruptions and mitigate risks.

4. JDK to Corretto Migration:

  • Migrated MSEDCL applications from JDK to Corretto during the shift to enhance performance and optimize outcomes.

5. AWS Hardware Infrastructure and Recovery Mechanisms:

  • Leveraged AWS's latest hardware infrastructure, auto recovery, and failure recovery mechanisms.
  • Reduced system downtime and achieved 100% application uptime in case of hardware failures.

6. Database Migration:

  • Utilized AWS RDS services to improve database performance.
  • Migrated databases, including Oracle, SQL, Sybase, and SAP servers, from on-premises to AWS Cloud using the Lift and Shift technique.
  • Ensured optimized performance by replacing on-premises infrastructure with AWS-optimized systems.

7. Storage and Backup:

  • Replaced tape library backup with Veritas, instance images, and RDS snapshots for efficient backup operations.
  • Stored backup data in AWS S3, leveraging the S3 lifecycle policy to manage data retention and cost-effectiveness.

8. Security Enhancements:

  • Deployed AWS KMS Services for data encryption, addressing MSEDCL's encryption challenges.
  • Implemented multiple security devices, including F5, Fortinet Firewall, Forti-Mail, Forti-WAF, and VPN firewalls.
  • Secured the cloud environment with Security Groups, F5 DDOS protection, and Forti-Siem devices.
  • Employed EBS Storage encryption for enhanced data security.

9. Networking Optimization:

  • Migrated CB Billing application data through Direct Connect for reliable and efficient data transfer.
  • Installed necessary infrastructure to ensure proper connectivity and performance of up to 500 MBPS.
  • Designed and configured the MSEDCL SAP Landscape for maximum performance and scalability.
  • Utilized AWS Transit Gateway service to facilitate communication across multiple VPCs.
  • Established Direct-Connect connections between Mumbai GPX and MSEDCL data center for offsite backup and private connectivity.
  • Leveraged AWS Direct-Connect to provide private connectivity between AWS Cloud-hosted applications and end-users across 200+ locations in Maharashtra.


Outcomes achieved through the deployment of Orient's solutions for MSEDCL:

1. Reduced Lock-in and Environment Maintenance:

  • Utilized EC2 with SAP Workloads to eliminate lock-in and remove the need for engaging AWS features.
  • Lift and shift technique facilitated the migration of apps and databases to the cloud without modification.

2. Efficient App Migration:

  • Implemented the Rehosting mechanism to migrate on-premises apps to the cloud without altering them.
  • Replicated complete virtual machines, including operating systems, apps, and databases, to a staging area in the target AWS Region using CloudEndure tools for disaster recovery.

3. Improved Query Performance:

  • Query execution time reduced by 15-20% compared to the previous phase, demonstrating improved efficiency.

4. Enhanced Backup and Recovery:

  • Transitioned from tape library backup to Veritas, instance images, and RDS snapshots stored in AWS S3.
  • Demonstrated AMI restoration using backed-up EC2 instances for efficient recovery.

5. Cost Optimization:

  • Reduced licensing costs primarily through AWS RDS services compared to previous expenses.
  • Eliminated unnecessary hardware costs in the on-premises system and utilized savings to build additional AWS services.

6. Database Performance and Patching:

  • Achieved significant improvements in database performance and patching jobs with the assistance of AWS RDS Services.

7. Secure Configuration:

  • Configured all systems behind the firewall, ensuring that no configurations are visible to the public.

8. Disaster Recovery:

  • Assigned point-in-recovery to SAP systems operating on AWS DC through AWS CloudEndure DR.

9. Oracle License Cost Reduction:

  • Reduced Oracle DB core usage from 128 crores to 98 crores, resulting in a 30% decrease in Oracle licensing costs.
  • Migrated all licensees from Unix-based systems to X86 architecture.

10. Efficient Backup Data Access:

  • Moved backup media from tape library to AWS S3, enabling access to around 700 TB of data within 24 hours compared to a week-long process using tape

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