#Archive - This refers to the number of objects that have been added to S3 Glacier storage.
#Deletes - This refers to the number of objects that have been deleted from S3 storage within the timeframe setup under the S3 Usage report
#Gets - This refers to the number of objects that have been pulled from S3 within the timeframe setup under the S3 Usage Report
#Glacier Requests - This refers to the number of Objects that have been pulled from the S3 Glacier storage class within the timeframe setup under the S3 Usage Report
#Objects - This refers to the number of Objects contained within S3 overall (including the objects that would fall under #Archive)
#Restore - This refers to the number of Objects contained within S3 that have been deleted in the past and then restored within the timeframe setup under the S3 Report
#SIA Transition - This refers to objects that have transitioned from S3 Standard storage or S3 Standard-IA storage classes to S3 Intelligent-Tiering, S3 Standard-IA, or S3 One Zone-IA based off of the Lifecycle setup you have further details can be found under -
https://docs.aws.amazon.com/AmazonS3/latest/dev/lifecycle-transition-general-considerations.html
#Tier 1 Requests - This represents the number of PUT, COPY, POST, or LIST requests against the objects contained within your AWS buckets
#Tier 2 Request - This represents the number of GET and all other non-Tier1 requests against the objects contained within your AWS buckets
#Tier 4 Request - This represents the number of lifecycle transitions to INTELLIGENT_TIERING, STANDARD_IA, or ONEZONE_IA storage for objects contained within your AWS buckets
#Uploads - This represents the number of Objects overall that have been added to your AWS S3 buckets within the timeframe setup under the S3 report
Data In - This represents the total size of the Objects rather than the number of Objects that have been added to AWS S3 buckets within timeframe setup under the S3 report
Data Out - This represents the total size of the Objects rather than the number of Objects that have been pulled from your AWS S3 buckets within the timeframe setup under the S3 report
Glacier Overhead - For each object archived to Glacier, Amazon S3 uses 8 KB of storage for the name of the object and other metadata. You are charged standard Amazon S3 rates for this additional storage. For each archived object, Glacier adds 32 KB of storage for index and related metadata. This extra data is necessary to identify and restore your object. You are charged Glacier rates for this additional storage. This measures this additional data separate from that of the objects stored within the storage class Glacier.
Glacier Storage - This refers to the size of all of the objects currently stored under the Amazon S3 Glacier (S3 Glacier) class of storage further details can be found here - https://aws.amazon.com/s3/storage-classes/ under the Amazon S3 Glacier heading.
Infrequent Access Storage - This refers to the number of objects stored within S3 buckets of the following storage classes - S3 Standard-IA and S3 One Zone-IA
Infrequent Access Storage Overhead - This refers to the number of bytes used for objects smaller than 128 KB in size in the STANDARD_IA storage class.
Intelligent Tier IA Storage - This refers to the size of all of the objects stored within S3 buckets of the following storage classes - S3 Intelligent-Tiering, specifically the objects that have been moved into the Infrequent Access tier - further details can be found under - https://aws.amazon.com/s3/storage-classes/ under the Amazon S3 Intelligent-Tiering (S3 Intelligent-Tiering) heading.
Intelligent Tier Storage - This refers to the number of objects stored within a S3 bucket of the following storage classes - S3 Intelligent-Tiering, specifically the objects that sit under the frequent access tier - further details can be found under - https://aws.amazon.com/s3/storage-classes/ under the Amazon S3 Intelligent-Tiering (S3 Intelligent-Tiering) heading.
Internal Data In - This represents the amount of data transferred into Amazon S3 from Amazon EC2 within the same AWS Region
Internal Data out - This represents the amount of data transferred from Amazon S3 to Amazon EC2 within the same AWS Region
RR Storage - This refers to the number of objects stored via Reduced Redundancy Storage further details on which can be found under - https://aws.amazon.com/s3/reduced-redundancy/
SIA Retrieval - This refers to the number of bytes of data retrieved from the storage class STANDARD_IA storage essentially the size of the objects stored under this storage class in S3
Standard Storage - This refers to the size of the of all of the objects currently stored under the S3 Standard storage class or General purpose storage class further details can be found under - https://aws.amazon.com/s3/storage-classes/ under the Amazon S3 Standard (S3 Standard) heading.
API Cost - Refers to the costs associated with making a PUT, COPY, POST, LIST GET or SELECT request to S3.
Transfer Cost - Refers to the cost of any Data transfer requests made outside of the following cases - Data transferred in from the internet, Data transferred out to an Amazon Elastic Compute Cloud (Amazon EC2) instance, when the instance is in the same AWS Region as the S3 bucket, and Data transferred out to Amazon CloudFront (CloudFront).