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2. Solutions and use cases/
3. Observability solution/
4. Applications and services/
5. Application performance monitoring (APM)/
6. Manage storage

Storage Explorer

Analyze your APM data and manage costs withstorage explorer. For example, analyze the storage footprint of each of your services to see which are producing large amounts of data—then change the sample rate of a service to lower the amount of data ingested. Or, expand the time filter to visualize data trends over time so that you can better forecast and prepare for future storage needs.

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A defaultindex lifecycle policy is applied to each APM data stream, but can be customized depending on your business needs. Use theIndex lifecycle phase dropdown to visualize and analyze your storage by phase.

Customizing the default APM index lifecycle policies can save money by specifying things like:

• The point at which an index can be moved to less performant hardware.
• The point at which availability is not as critical and the number of replicas can be reduced.
• When the index can be safely deleted.

SeeIndex lifecycle management to learn more about customizing the default APM index lifecycle policies.

The service size chart displays the estimated size of each service over time. Expand the time filter to visualize data trends and estimate daily data generation.

The service statistics table provides detailed information on each service:

• A list ofservice environments.
• Thesampling rate. This value is calculated by dividing the number of sampled transactions by total throughput. It might differ from the configured sampling rate for two reasons: with head-based sampling, the initial service makes the sampling decision, and with tail-based sampling, granular policies allow you to set multiple sample rates.
• The estimatedsize on disk. This storage size includes both primary and replica shards and is calculated by prorating the total size of your indices by the service’s document count divided by the total number of documents.
• Number oftransactions,spans,errors, andmetrics — doc count and size on disk.

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