Data centre migration - leading retail & investment bank
Major Australian Bank with approximately 12 million clients and annual revenues of over 38 billion globally.
Online banking application required relocation to new data centre in-advance of critical production go-live events. Due to high complexity in the network/security layers, the application environment was in discovery mode for over 12 months and deadlines for migration/cutover were looming with risk to public facing service go-live dates. In addition, online banking development and test teams were struggling to meet deadlines and outsourcer teams had limited cycles to perform migration planning and execution. Glasshouse was engaged by the outsourcer at a late stage when the customer team realised they had major issues with the existing program.
The Glasshouse team was engaged to fast-track migration high level migration design, planning, migration, and decommissioning phases of the project. The project had a pre-defined schedule and move-groups, which were introduced as a hard requirement on day-one of the engagement. The traditional Lift & Shift migration included stringent security and schedule requirements, over two migration windows. The scope included over 500 devices and 3500 network patches, with full audit-trail requirements for relocation.
The GlassHouse team, including a Migration Manager and key specialized network engineering resources set about rapidly discovering, validating, and planning the migration events. Strict defect tolerance limits were applied, in addition to a highly coordinated sequencing of equipment transition. Over 200 customer and 3rd party resources were involved in the project.
The migration had a high component of Lift and Shift (68%), which required consultation with various technology vendors on the safest procedures to move complex equipment. There was also a component of transformation to virtualise some of the workload devices. As the type of patching changed between facilities, the 3500 patches were planned in great detail prior to the move and managed in detail over the migration windows.
The end-result was a migration performed on-time with acceptable results to the client business and application teams. Existing discovery data was cleansed and validated, allowing data quality gaps to be closed. The 500 devices were successfully migrated in the two migration windows allocated. All 3500 patches were completed as planned, with a lower defect rate than the original environment build. There was no unscheduled outage time for the target application