By not following best practices when it came to spinning down test environments when not in use, IBL was incurring unnecessary costs. And, the complexity was becoming unmanageable. This prompted IBL to reach out to AWS directly for help. AWS recommended NorthBay Solutions being the only AWS Premier Consulting Partner in Pakistan, as well as an expert in AWS security best practices with more than 300 AWS certified employees focused on helping organizations drive measurable business impact.
Ultimately, what IBL wanted was simple. IBL wanted to leverage the agility, flexibility and power of the cloud to modernize applications and introduce new capabilities such as data analytics, and Internet of Things (IoT).
The NorthBay Solutions team began by working closely with IBL and experts at AWS to analyze the requirements and provide a detailed road map for migrating their critical workloads. This collaborative team inventoried all existing servers, applications, and network equipment and analyzed their detailed specifications and cloud compatibility. It also documented any risks, such as a single point of failure which could disrupt the migration activity.
Next, NorthBay developed a detailed plan to migrate groups of servers in waves. Timelines for migration testing, User Acceptance Testing (UAT), and final cutover were calculated by analyzing the available migration bandwidth and synchronization speed obtained during discovery phase tests.
Among the initial 17 applications identified for initial migration included the complete landscape of SAP ERP, Microsoft Exchange, domain controllers and some middleware servers. Based upon the discovery, some applications were slated for “lift and shift” to AWS, while others would require application-level migration. CloudEndure was used for block-level migration, and after that detailed UAT and end-user testing was performed in order to make sure each functionality was working properly after migration to the cloud. The discovery session information was collected utilizing templates from the TOGAF & AWS Enterprise Development Kit (EDK) which is part of AWS Enterprise Development Framework.
Due to compatibility issues at OS level, SAP production systems were migrated at the application and database level by using SAP recommended methodologies. For the AWS architecture design and deployment, the multi-account strategy, Well-Architected Framework, and Security by Design (SbD) approach were implemented. Control Tower and multiple AWS security and monitoring services were used. Transit gateway and site-to-site VPNs played a vital role in connecting AWS accounts and client offices.