Case Study: SIA Group achieves zero‑downtime migration and continuous high‑volume transaction processing with Stratus Technologies

Stratus V Series platform handles high-volume growth for leading European financial services technology provider

SIA Group, a European leader in financial services and payments, runs an authorization system that processes about 1.7 million transactions daily and peaks at 2.5 million. To support rapid growth and consolidate six legacy Continuum systems, SIA needed to migrate custom applications and databases to two new Stratus V Series servers without any downtime and while preserving strict customer SLAs and database synchronization.

SIA used its in‑house synchronization software, re‑configured with support from a Stratus consultant, to bring the first V Series online, redirect transaction traffic, and progressively retire the Continuum systems. The migration completed transparently with zero downtime, full SLA compliance, improved response times, greater capacity for growth, and operational cost savings from system consolidation.

SIA Group