Silk Highly Available Architectures for SQL Server

This whitepaper presents the Silk Highly Available Architectures for SQL Server, detailing various tiers of high availability (HA) and disaster recovery (DR) solutions. It begins by defining critical concepts such as Recovery Point Objective (RPO) and Recovery Time Objective (RTO), emphasizing their importance in business continuity. The document outlines four distinct tiers of architecture: Tier 1, which provides premium HA and DR; Tier 2, designed for critical applications; Tier 3, focused on failover and recovery; and Tier 4, aimed at non-critical applications. Each tier is characterized by specific features, including the use of SQL Server's Always On availability groups and Silk's replication capabilities. The paper explains how these architectures can be tailored to meet varying business needs, ensuring flexibility and control over service level agreements (SLAs) and cloud costs. Additionally, it discusses the operational efficiencies gained through Silk's intelligent data platform, which supports concurrent database management and optimizes cloud resources.