Documentdb Cost
monthly cost estimate based on a specific workload or data size? AI can make mistakes, so double-check responses Copy Creating a public link... You can now share this thread with others Good response Bad response 7 sites Amazon DocumentDB Pricing - AWS Additional backup storage beyond the free allotment is priced as low as $0.02 per GB/month (prices may vary across AWS regions). A... Amazon Web Services MongoDB Atlas vs Amazon DocumentDB: Cost Considerations Feb 11, 2025 —
Complete Guide to Amazon DocumentDB Cost: Components, Optimization, and Estimation 1. Introduction Amazon DocumentDB is a fully managed, scalable, and highly available document database service that mimics MongoDB APIs. While it simplifies operations (backups, patching, replication), understanding its cost structure is critical to avoid unexpected bills. Unlike serverless MongoDB alternatives (e.g., Atlas Serverless), DocumentDB primarily follows an instance-based pricing model —you pay for the underlying AWS infrastructure, not per request or document. 2. Core Cost Components Amazon DocumentDB costs aggregate from five main categories: 2.1 Compute (Instance Hours)
What it is : The database instances (primary + replicas) running in your cluster. Pricing basis : Per instance-hour , prorated by the second. Price varies by:
Instance family (e.g., db.r5 , db.t3 , db.r6g – Graviton2) Region On-Demand vs. Reserved Instance (RI) pricing documentdb cost
Example On-Demand rates (us-east-1) :
db.t3.medium : ~$0.077/hr (~$55/mo) db.r5.large : ~$0.24/hr (~$173/mo) db.r6g.4xlarge : ~$1.424/hr (~$1025/mo)
Critical : You pay for every instance in the cluster. A production cluster with 1 primary + 2 replicas costs 3× the single instance price. monthly cost estimate based on a specific workload
2.2 Storage
What it is : SSD-backed data volume for your cluster. Pricing basis : $0.10 to $0.30 per GB-month (region dependent). No separate I/O charge (unlike Amazon RDS for MySQL/PostgreSQL). Minimum storage : 10 GB. Automatically scales up to 64 TB. Example : 500 GB storage @ $0.10/GB = $50/mo.
2.3 Backup Storage
Free tier : 100% of your total cluster storage (e.g., 500 GB cluster → 500 GB backup free). Excess : Any backup storage beyond that is charged at ~$0.021 per GB-month (snapshot storage rate). Long-term retention : Manual snapshots also count toward backup storage (but first 100% of used storage is free only for automated backups; manual snapshots are always charged if they exceed the free quota).
2.4 Data Transfer (Network) | Transfer Type | Cost | |---------------|------| | Within same AZ | Free | | Between AZs (same region) | $0.01 to $0.02 per GB | | Between regions (outbound) | $0.02 to $0.09 per GB (standard EC2 data transfer) | | To internet | Standard EC2 internet outbound rates (first 1 GB free per month, then ~$0.09/GB) |