Documentdb Elastic Cluster Pricing May 2026

1. Executive Summary Amazon DocumentDB Elastic Clusters are designed for workloads with highly variable or unpredictable access patterns, offering automatic horizontal scaling (up to 32 shards) and independent scaling of compute and storage. Unlike the standard DocumentDB instance-based pricing, Elastic Clusters use a per-shard, per-hour pricing model based on DocumentDB Compute Units (DCUs) and storage. This model provides cost efficiency for bursty or growing applications but requires careful monitoring to avoid unexpected charges.

Elastic Clusters are ideal for production workloads with changing demands, but are generally more expensive than provisioned instances for steady-state, predictable workloads. 2. Pricing Components DocumentDB Elastic Cluster pricing consists of three main elements: documentdb elastic cluster pricing

Backup overage: 20 TiB backup – 10 TiB free = 10 TiB overage = 10,240 GiB × $0.021 = $215.04? Wait, correction: Actually: 10 TiB = 10,240 GiB free. If backup is 20 TiB, overage = 10,240 GiB × $0.021 = $215.04. My table incorrectly had $537.60. Let me fix: This model provides cost efficiency for bursty or