Salesforce Achieves Multi-AZ HA with SageMaker Inference Components

AWS ML Blog · rss · 2026-08-29

This post details how Salesforce used new capabilities in Amazon SageMaker Inference Components (IC) to achieve High Availability (HA) across multiple Availability Zones. While ICs reduced infrastructure costs by 8x through GPU sharing, the default placement didn't guarantee cross-AZ balance. Salesforce utilized the SchedulingConfig parameter, featuring AvailabilityZoneBalance and PlacementStrategy: SPREAD, to ensure model copies are evenly distributed across AZs and instances, meeting 2-AZ compliance and mitigating single points of failure.

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