Reserved Capacity and Committed Use

Parent: MongoDB Atlas Cost Optimization · Published reference · snapshot 2026-10-15

Depth-first rabbithole dossier for Reserved Capacity and Committed Use; source-anchored research pack.

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Definitions

[low] If a subscription activation code is not added within the first 30 days of use, MongoDB charges the credit card associated with the account. Sources: https://www.mongodb.com/docs/atlas/billing/subscriptions.md [source]

Measurements and reference values

[low] 100% of spend on Google Cloud Marketplace Services may count toward Minimum Commitment obligations, except exclusions that include all Google Maps offerings, Google Ads, services not running on Google Cloud, services purchased through resellers where the vendor has not opted into the resale program, services owned by the purchaser or its Affiliate, and Professional Services. Sources: https://docs.cloud.google.com/marketplace/docs/commit-drawdown [source]

Problems, failure modes and limitations

[low] The MongoDB client driver automatically switches all client connections during and after a failure. Sources: https://www.mongodb.com/docs/atlas/architecture/current/high-availability.md [source]
[low] When retryable reads and writes are enabled, Atlas retries read and write operations once as a safeguard against intermittent network outages and replica set elections where the application temporarily cannot find a healthy primary node. Sources: https://www.mongodb.com/docs/atlas/architecture/current/high-availability.md [source]
[low] Atlas uses reactive auto-scaling based on current resource usage and predictive auto-scaling that proactively scales up to reduce the risk of outages due to resource constraints. Sources: https://www.mongodb.com/docs/atlas/architecture/current/high-availability.md [source]

Facts and statements

[low] Buyers with predictable workloads frequently achieve below-list pricing through reserved capacity commitments, annual committed use agreements, multi-year contracts, or volume-based discounting. Sources: https://www.vendr.com/marketplace/mongodb [source]
[low] Overcommitting to reserved capacity or using inflated usage projections increases costs unnecessarily. Sources: https://www.vendr.com/marketplace/mongodb [source]
[low] MongoDB Atlas Flex Commitment and Monthly Commitment subscriptions require committing to pay for credits over a term, such as annual; a Monthly Commitment subscription is invoiced monthly for the greater of usage or the prorated monthly commitment. Sources: https://www.mongodb.com/docs/atlas/billing/subscriptions.md [source]
[low] If monthly commitment subscription credits are exhausted before expiration and Elastic Billing is enabled, Atlas bills for usage beyond the subscription credits. Sources: https://www.mongodb.com/docs/atlas/billing/subscriptions.md [source]
[low] Online Archive in Atlas is available only on M10 and greater clusters. Sources: https://www.mongodb.com/docs/atlas/online-archive/overview.md [source]
[low] Five days after deleting the online archive, Atlas automatically deletes all files and metadata on the online archive storage. Sources: https://www.mongodb.com/docs/atlas/online-archive/overview.md [source]
[low] Recommended regions in Atlas have three availability zones and are marked with a star icon in the Atlas UI. Sources: https://www.mongodb.com/docs/atlas/architecture/current/deployment-paradigms.md [source]
[medium] Failover between database instances during an outage is fully automatic, requires no human intervention, and takes only seconds. Sources: https://www.mongodb.com/docs/atlas/architecture/current/deployment-paradigms.md, https://www.mongodb.com/docs/atlas/architecture/current/high-availability.md [source]
[low] Atlas deploys each cluster as a replica set with a minimum of three database instances, which can be increased to any odd number up to a maximum of 7 electable nodes and 50 total nodes. Sources: https://www.mongodb.com/docs/atlas/architecture/current/high-availability.md [source]
[low] Deploying a cluster to multiple regions enhances availability across a larger geography and enables automatic failover in the case of a full-region outage that disables all availability zones within the primary region. Sources: https://www.mongodb.com/docs/atlas/architecture/current/high-availability.md [source]
[low] AWS offers three types of Savings Plans: Compute Savings Plans, EC2 Instance Savings Plans, and SageMaker Savings Plans. Sources: https://docs.aws.amazon.com/savingsplans/latest/userguide/sp-services.html [source]
[low] Compute Savings Plans apply to usage across Amazon EC2, AWS Lambda, and AWS Fargate, while EC2 Instance Savings Plans apply to EC2 usage and SageMaker AI Savings Plans apply to SageMaker AI usage. Sources: https://docs.aws.amazon.com/savingsplans/latest/userguide/sp-services.html [source]
[low] Fargate and Lambda are eligible for Compute Savings Plans, and SageMaker AI is eligible for SageMaker AI Savings Plans. Sources: https://docs.aws.amazon.com/savingsplans/latest/userguide/sp-services.html [source]
[low] Buyers who negotiate flexible scaling terms, usage-based true-ups, or tiered pricing based on actual consumption often achieve better alignment between cost and value. Sources: https://www.vendr.com/marketplace/mongodb [source]
[low] Many MongoDB contracts include auto-renewal terms with 30–90 day notice periods, and buyers who miss the notice window may face unfavorable renewal terms or difficulty renegotiating. Sources: https://www.vendr.com/marketplace/mongodb [source]

Related concepts

and — is a part of Reserved Capacity and Committed Use
Reserved — is a part of Reserved Capacity and Committed Use
Capacity — is a part of Reserved Capacity and Committed Use
Use — is a part of Reserved Capacity and Committed Use
Committed — is a part of Reserved Capacity and Committed Use

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