Amazon S3 Storage Lens metrics glossary - Amazon Simple Storage Service
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Amazon S3 Storage Lens metrics glossary

The Amazon S3 Storage Lens metrics glossary provides a complete list of free and advanced metrics for S3 Storage Lens.

S3 Storage Lens offers free metrics for all dashboards and configurations, with the option to upgrade to advanced metrics.

  • Free metrics contain metrics that are relevant to your storage usage, such as the number of buckets and the objects in your account, and use-case based metrics, such as cost-optimization and data-protection metrics. All free metrics are collected daily, and data is available for queries for 14 days.

  • Advanced metrics include all the metrics in free metrics along with additional metrics, such as advanced data-protection and cost-optimization metrics, along with additional metric categories, such as activity metrics and detailed status-code metrics. Advanced metrics data is available for queries for 15 months.

    There are additional charges when you use S3 Storage Lens with advanced metrics and recommendations. For more information, see Amazon S3 pricing. For more information about advanced metrics and recommendations features, see Metrics selection.

Metric names

The Metric name column in the following table provides the name of each S3 Storage Lens in the S3 console. The CloudWatch and export column provides the name of each metric in Amazon CloudWatch and the metrics export file that you can configure in your S3 Storage Lens dashboard.

Derived metric formulas

Derived metrics are not available for the metrics export and the CloudWatch publishing option. However, you can use the metrics formulas shown in the Derived metrics formula column to compute them.

Interpreting Amazon S3 Storage Lens metrics unit multiples prefix symbols (K, M, G, and so on)

S3 Storage Lens metrics unit multiples are written with prefix symbols. These prefix symbols match the International System of Units (SI) symbols that are standardized by the International Bureau of Weights and Measures (BIPM). These symbols are also used in the Unified Code for Units of Measure (UCUM). For more information, see List of SI prefix symbols.

S3 Storage Lens metrics glossary
Metric name CloudWatch and export Description Tier Category Derived Derived metric formula
Total storage StorageBytes The total storage Free Summary N -
Object count ObjectCount The total object count Free Summary N -
Average object size - The average object size Free Summary Y sum(StorageBytes)/sum(ObjectCount)
Active buckets - The total number of buckets in active usage with storage > 0 bytes Free Summary Y -
Buckets - The total number of buckets Free Summary Y -
Accounts - The number of accounts whose storage is in scope Free Summary Y -
Current version bytes CurrentVersionStorageBytes The number of bytes that are a current version of an object Free Cost optimization N -
% current version bytes - The percentage of bytes in scope that are current versions of objects Free Cost optimization Y sum(CurrentVersionStorageBytes)/sum(StorageBytes)
Current version object count CurrentVersionObjectCount The count of current version objects Free Cost optimization N -
% current version objects - The percentage of objects in scope that are a current version Free Cost optimization Y sum(CurrentVersionObjectCount)/sum(ObjectCount)
Noncurrent version bytes NonCurrentVersionStorageBytes The number of noncurrent version bytes Free Cost optimization N -
% noncurrent version bytes - The percentage of bytes in scope that are noncurrent versions Free Cost optimization Y sum(NonCurrentVersionStorageBytes)/sum(StorageBytes)
Noncurrent version object count NonCurrentVersionObjectCount The count of the noncurrent object versions Free Cost optimization N -
% noncurrent version objects - The percentage of objects in scope that are a noncurrent version Free Cost optimization Y sum(NonCurrentVersionObjectCount)/sum(ObjectCount)
Delete marker bytes DeleteMarkerStorageBytes The number of bytes in scope that are delete markers Free Cost optimization N -
% delete marker bytes - The percentage of bytes in scope that are delete markers Free Cost optimization Y sum(DeleteMarkerStorageBytes)/sum(StorageBytes)
Delete marker object count DeleteMarkerObjectCount The total number of objects with a delete marker Free Cost optimization N -
% delete marker objects - The percentage of objects in scope with a delete marker Free Cost optimization Y sum(DeleteMarkerObjectCount)/sum(ObjectCount)
Incomplete multipart upload bytes IncompleteMultipartUploadStorageBytes The total bytes in scope for incomplete multipart uploads Free Cost optimization N -
% incomplete multipart upload bytes - The percentage of bytes in scope that are the result of incomplete multipart uploads Free Cost optimization Y sum(IncompleteMultipartUploadStorageBytes)/sum(StorageBytes)
Incomplete multipart upload object count IncompleteMultipartUploadObjectCount The number of objects in scope that are incomplete multipart uploads Free Cost optimization N -
% incomplete multipart upload objects - The percentage of objects in scope that are incomplete multipart uploads Free Cost optimization Y sum(IncompleteMultipartUploadObjectCount)/sum(ObjectCount)
Incomplete multipart upload storage bytes greater than 7 days old IncompleteMPUStorageBytesOlderThan7Days The total bytes in scope for incomplete multipart uploads that are more than 7 days old Free Cost optimization N -
% incomplete multipart upload storage bytes greater than 7 days old - The percentage of bytes for incomplete multipart uploads that are more than 7 days old Free Cost optimization Y sum(IncompleteMPUStorageBytesOlderThan7Days)/sum(StorageBytes)
Incomplete multipart upload object count greater than 7 days old IncompleteMPUObjectCountOlderThan7Days The number of objects that are incomplete multipart uploads more than 7 days old Free Cost optimization N -
% incomplete multipart upload object count greater than 7 days old - The percentage of objects that are incomplete multipart uploads more than 7 days old Free Cost optimization Y sum(IncompleteMPUObjectCountOlderThan7Days)/sum(ObjectCount)
Transition lifecycle rule count TransitionLifecycleRuleCount The count of lifecycle rules to transition objects to another storage class Advanced Cost optimization N -
Average transition lifecycle rules per bucket - The average number of lifecycle rules to transition objects to another storage class Advanced Cost optimization Y sum(TransitionLifecycleRuleCount )/sum(DistinctNumberOfBuckets)
Expiration lifecycle rule count ExpirationLifecycleRuleCount The count of lifecycle rules to expire objects Advanced Cost optimization N -
Average expiration lifecycle rules per bucket - The average number of lifecycle rules to expire objects Advanced Cost optimization Y sum(ExpirationLifecycleRuleCount)/sum(DistinctNumberOfBuckets)
Noncurrent version transition lifecycle rule count NoncurrentVersionTransitionLifecycleRuleCount The count of lifecycle rules to transition noncurrent object versions to another storage class Advanced Cost optimization N
Average noncurrent version transition lifecycle rules per bucket - The average number of lifecycle rules to transition noncurrent object versions to another storage class Advanced Cost optimization Y sum(NoncurrentVersionTransitionLifecycleRuleCount)/sum(DistinctNumberOfBuckets)
Noncurrent version expiration lifecycle rule count NoncurrentVersionExpirationLifecycleRuleCount The count of lifecycle rules to expire noncurrent object versions Advanced Cost optimization N -
Average noncurrent version expiration lifecycle rules per bucket - The average number of lifecycle rules to expire noncurrent object versions Advanced Cost optimization Y sum(NoncurrentVersionExpirationLifecycleRuleCount)/sum(DistinctNumberOfBuckets)
Abort incomplete multipart upload lifecycle rule count AbortIncompleteMPULifecycleRuleCount The count of lifecycle rules to delete incomplete multipart uploads Advanced Cost optimization N -
Average abort incomplete multipart upload lifecycle rules per bucket - The average number of lifecycle rules to delete incomplete multipart uploads Advanced Cost optimization Y sum(AbortIncompleteMPULifecycleRuleCount)/sum(DistinctNumberOfBuckets)
Expired object delete marker lifecycle rule count ExpiredObjectDeleteMarkerLifecycleRuleCount The count of lifecycle rules to remove expired object delete markers Advanced Cost optimization N -
Average expired object delete marker lifecycle rules per bucket - The average number of lifecycle rules to remove expired object delete markers Advanced Cost optimization Y sum(ExpiredObjectDeleteMarkerLifecycleRuleCount)/sum(DistinctNumberOfBuckets)
Total lifecycle rule count TotalLifecycleRuleCount The total count of lifecycle rules Advanced Cost optimization N -
Average lifecycle rule count per bucket - The average number of lifecycle rules Advanced Cost optimization Y sum(TotalLifecycleRuleCount)/sum(DistinctNumberOfBuckets)
Encrypted bytes EncryptedStorageBytes The total number of encrypted bytes Free Data protection N -
% encrypted bytes - The percentage of total bytes that are encrypted Free Data protection Y sum(EncryptedObjectCount)/sum(StorageBytes)
Encrypted object count EncryptedObjectCount The total count of objects that are encrypted Free Data protection N -
% encrypted objects - The percentage of objects that are encrypted Free Data protection Y sum(EncryptedStorageBytes)/sum(ObjectCount)
Unencrypted bytes UnencryptedStorageBytes The number of bytes that are unencrypted Free Data protection Y sum(StorageBytes) - sum(EncryptedStorageBytes)
% unencrypted bytes - The percentage of bytes that are unencrypted Free Data protection Y sum(UnencryptedStorageBytes)/sum(StorageBytes)
Unencrypted object count UnencryptedObjectCount The total count of objects that are unencrypted Free Data protection Y sum(ObjectCount) - sum(EncryptedObjectCount)
% unencrypted objects - The percentage of unencrypted objects Free Data protection Y sum(UnencryptedStorageBytes)/sum(ObjectCount)
Replicated storage bytes source ReplicatedStorageBytesSource The total number of bytes that are replicated Free Data protection N -
% replicated bytes source - The percentage of total bytes that are replicated Free Data protection Y sum(ReplicatedStorageBytesSource)/sum(StorageBytes)
Replicated object count source ReplicatedObjectCountSource The count of replicated objects Free Data protection N -
% replicated objects source - The percentage of total objects that are replicated Free Data protection Y sum(ReplicatedStorageObjectCount)/sum(ObjectCount)
Versioning-enabled bucket count VersioningEnabledBucketCount The count of buckets that have S3 Versioning enabled Free Data protection N -
% versioning-enabled buckets - The percentage of buckets that have S3 Versioning enabled Free Data protection Y sum(VersioningEnabledBucketCount)/sum(DistinctNumberOfBuckets)
MFA delete-enabled bucket count MFADeleteEnabledBucketCount The count of buckets that have MFA (multi-factor authentication) delete enabled Free Data protection N -
% MFA delete-enabled buckets - The percentage of buckets that have MFA (multi-factor authentication) delete enabled Free Data protection Y sum(MFADeleteEnabledBucketCount)/sum(DistinctNumberOfBuckets)
SSE-KMS enabled bucket count SSEKMSEnabledBucketCount The count of buckets that use server-side encryption with Amazon Key Management Service keys (SSE-KMS) for default bucket encryption Free Data protection N -
% SSE-KMS enabled buckets - The percentage of buckets that SSE-KMS for default bucket encryption Free Data protection Y sum(SSEKMSEnabledBucketCount)/sum(DistinctNumberOfBuckets)
All unsupported signature requests AllUnsupportedSignatureRequests The total number of requests that use unsupported Amazon signature versions Advanced Data protection N -
% all unsupported signature requests - The percentage of requests that use unsupported Amazon signature versions Advanced Data protection Y sum(AllUnsupportedSignatureRequests)/sum(AllRequests)
All unsupported TLS requests AllUnsupportedTLSRequests The number of requests that use unsupported Transport Layer Security (TLS) versions Advanced Data protection N -
% all unsupported TLS requests - The percentage of requests that use unsupported TLS versions Advanced Data protection Y sum(AllUnsupportedTLSRequests)/sum(AllRequests)
All SSE-KMS requests AllSSEKMSRequests The total number of requests that specify SSE-KMS Advanced Data protection N -
% all SSE-KMS requests - The percentage of requests that specify SSE-KMS Advanced Data protection Y sum(AllSSEKMSRequests)/sum(AllRequests)
Same-Region Replication rule count SameRegionReplicationRuleCount The count of replication rules for Same-Region Replication (SRR) Advanced Data protection N -
Average Same-Region Replication rules per bucket - The average number of replication rules for SRR Advanced Data protection Y sum(SameRegionReplicationRuleCount)/sum(DistinctNumberOfBuckets)
Cross-Region Replication rule count CrossRegionReplicationRuleCount The count of replication rules for Cross-Region Replication (CRR) Advanced Data protection N -
Average Cross-Region Replication rules per bucket - The average number of replication rules for CRR Advanced Data protection Y sum(CrossRegionReplicationRuleCount)/sum(DistinctNumberOfBuckets)
Same-account replication rule count SameAccountReplicationRuleCount The count of replication rules for replication within the same account Advanced Data protection N -
Average same-account replication rules per bucket - The average number of replication rules for replication within the same account Advanced Data protection Y sum(SameAccountReplicationRuleCount)/sum(DistinctNumberOfBuckets)
Cross-account replication rule count CrossAccountReplicationRuleCount The count of replication rules for cross-account replication Advanced Data protection N -
Average cross-account replication rules per bucket - The average number of replication rules for cross-account replication Advanced Data protection Y sum(CrossAccountReplicationRuleCount)/sum(DistinctNumberOfBuckets)
Invalid destination replication rule count InvalidDestinationReplicationRuleCount The count of replication rules with a replication destination that's not valid Advanced Data protection N -
Average invalid destination replication rules per bucket - The average number of replication rules with a replication destination that's not valid Advanced Data protection Y sum(InvalidReplicationRuleCount)/sum(DistinctNumberOfBuckets)
Total replication rule count - The total replication rule count Advanced Data protection Y -
Average replication rule count per bucket - The average total replication rule count Advanced Data protection Y sum(all replication rule count metrics)/sum(DistinctNumberOfBuckets)
Object Ownership bucket owner enforced bucket count ObjectOwnershipBucketOwnerEnforcedBucketCount The total count of buckets that have access control lists (ACLs) disabled by using the bucket owner enforced setting for Object Ownership Free Access management N -
% Object Ownership bucket owner enforced buckets - The percentage of buckets that have ACLs disabled by using the bucket owner enforced setting for Object Ownership Free Access management Y sum(ObjectOwnershipBucketOwnerEnforcedBucketCount)/sum(DistinctNumberOfBuckets)
Object Ownership bucket owner preferred bucket count ObjectOwnershipBucketOwnerPreferredBucketCount The total count of buckets that use the bucket owner preferred setting for Object Ownership Free Access management N -
% Object Ownership bucket owner preferred buckets - The percentage of buckets that use the bucket owner preferred setting for Object Ownership Free Access management Y sum(ObjectOwnershipBucketOwnerPreferredBucketCount)/sum(DistinctNumberOfBuckets)
Object Ownership object writer bucket count ObjectOwnershipObjectWriterBucketCount The total count of buckets that use the object writer setting for Object Ownership Free Access management N -
% Object Ownership object writer buckets - The percentage of buckets that use the object writer setting for Object Ownership Free Access management Y sum(ObjectOwnershipObjectWriterBucketCount)/sum(DistinctNumberOfBuckets)
Transfer Acceleration enabled bucket count TransferAccelerationEnabledBucketCount The total count of buckets that have Transfer Acceleration enabled Free Performance N -
% Transfer Acceleration enabled buckets - The percentage of buckets that have Transfer Acceleration enabled Free Performance Y sum(TransferAccelerationEnabledBucketCount)/sum(DistinctNumberOfBuckets)
Event Notification enabled bucket count EventNotificationEnabledBucketCount The total count of buckets that have Event Notifications enabled Free Events N
% Event Notification enabled buckets - The percentage of buckets that have Event Notifications enabled Free Events Y sum(EventNotificationEnabledBucketCount)/sum(DistinctNumberOfBuckets)
All requests AllRequests

The total number of requests made

Advanced Activity N -
Get requests GetRequests

The total number of GET requests made

Advanced Activity N -
Put requests PutRequests

The total number of PUT requests made

Advanced Activity N -
Head requests HeadRequests The total number of HEAD requests made Advanced Activity N -
Delete requests DeleteRequests The total number of DELETE requests made Advanced Activity N -
List requests ListRequests The total number of PUT requests made Advanced Activity N -
Post requests PostRequests The total number of POST requests made Advanced Activity N -
Select requests SelectRequests The total number of S3 Select requests Advanced Activity N -
Select scanned bytes SelectScannedBytes The number of S3 Select bytes scanned Advanced Activity N -
Select returned bytes SelectReturnedBytes The number of S3 Select bytes returned Advanced Activity N -
Bytes downloaded BytesDownloaded The number of bytes downloaded Advanced Activity N -
% retrieval rate - The percentage of bytes downloaded Advanced Activity Y sum(BytesDownloaded)/sum(StorageBytes)
Bytes uploaded BytesUploaded The number of bytes uploaded Advanced Activity N -
% ingest ratio - The percentage of bytes uploaded Advanced Activity Y sum(BytesUploaded)/sum(StorageBytes)
4xx errors 4xxErrors The total number of HTTP 4xx status codes Advanced Activity N -
5xx errors 5xxErrors The total number of HTTP 5xx status codes Advanced Activity N -
Total errors - The sum of all 4xx and 5xx errors Advanced Activity Y sum(4xxErrors) + sum(5xxErrors)
% error rate -

The total number of 4xx and 5xx errors as a percentage of total requests

Advanced Activity Y sum(TotalErrors)/sum(TotalRequests)
200 OK status count 200OKStatusCount The total count of 200 OK status codes Advanced Detailed status code N -
% 200 OK status -

The total number of 200 OK status codes as a percentage of total requests

Advanced Detailed status code Y sum(200OKStatusCount)/sum(AllRequests)
206 Partial Content status count 206PartialContentStatusCount The total count of 206 Partial Content status codes Advanced Detailed status code N -
% 206 Partial Content status - The total number of 206 Partial Content status codes as a percentage of total requests Advanced Detailed status code Y sum(206PartialContentStatusCount)/sum(AllRequests)
400 Bad Request error count

400BadRequestErrorCount

The total count of 400 Bad Request status codes Advanced Detailed status code N -
% 400 Bad Request errors - The total number of 400 Bad Request status codes as a percentage of total requests Advanced Detailed status code Y sum(400BadRequestErrorCount)/sum(AllRequests)
403 Forbidden error count

403ForbiddenErrorCount

The total count of 403 Forbidden status codes Advanced Detailed status code N -
% 403 Forbidden errors - The total number of 403 Forbidden status codes as a percentage of total requests Advanced Detailed status code Y sum(403ForbiddenErrorCount)/sum(AllRequests)
404 Not Found error count 404NotFoundErrorCount The total count of 404 Not Found status codes Advanced Detailed status code N -
% 404 Not Found errors - The total number of 404 Not Found status codes as a percentage of total requests Advanced Detailed status code Y sum(404NotFoundErrorCount)/sum(AllRequests)
500 Internal Server Error count 500InternalServerErrorCount The total count of 500 Internal Server Error status codes Advanced Detailed status code N -
% 500 Internal Server Errors - The total number of 500 Internal Server Error status codes as a percentage of total requests Advanced Detailed status code Y sum(500InternalServerErrorCount)/sum(AllRequests)
503 Service Unavailable error count 503ServiceUnavailableErrorCount The total count of 503 Service Unavailable status codes Advanced Detailed status code N -
% 503 Service Unavailable errors - The total number of 503 Service Unavailable status codes as a percentage of total requests Advanced Detailed status code Y sum(503ServiceUnavailableErrorCount)/sum(AllRequests)