S3 Optimization
Overview
S3 Optimization gives you complete visibility into your Amazon S3 bucket costs and helps identify opportunities to reduce storage expenses. You can explore usage patterns, compare current and past costs, and evaluate storage policies across all visible buckets.
Conditions for Bucket Visibility
A bucket will appear in the S3 Optimization dashboard only if the following conditions are met:
The bucket is in an active state (not deleted).
The total cost exceeds $20 over the last 30 days.
Buckets that do not meet these criteria will be excluded from the analysis.
Exploring S3 Dashboard
To access the S3 Optimization dashboard:
Log in to the OneLens UI.
In the left sidebar, navigate to S3 Optimization.
Here is how the main page will look:
Customize View
You can tailor the dashboard view to focus on specific data:
View Options
You can start with pre-saved views or customize your own using filters.
Tip
To learn how to save a customized view, click here.
Date Range
Predefined Range: Quickly access relevant cost data by selecting a range such as “Last 2 Weeks” or “Month-to-Date”.
Custom Range: If you need to analyze costs over a specific period, define a custom date range to focus on the exact time frame.
Key Metrics
After customizing the view using filters and date range, you can view the following metrics:
Total S3 Buckets – Number of buckets visible under current filters.
Total S3 Cost – Aggregate cost of the visible buckets for the selected period.
Table Representation
The table presents detailed cost and usage data for each visible bucket. The following columns are included:
Column Name
Description
Bucket Name
Name of the S3 bucket.
Account
AWS account to which the bucket belongs.
Total Cost
Total cost incurred for the selected time range.
Previous Cost
Cost for the previous period of the same duration.
Delta
Change in cost compared to the previous period.
Total Size
Total storage used in the bucket.
Total Objects
Number of objects stored in the bucket.
Storage Class
Predominant storage class in use (e.g., Standard, IA, Glacier).
Storage Cost
Cost directly attributable to storage use.
Lifecycle Policy
Number of lifecycle policies associated with the bucket.
Versioning
Indicates whether versioning is enabled or disabled.
Access Insights
Each row includes an Insight button. Clicking it takes you directly to the Insights page for deeper analysis.
To learn more about the kinds of insights available, click here.
View Bucket Details
To view detailed information for a specific bucket, you can either:
Click directly on the bucket name in the table, or
Select View Details from the three horizontal dots at the end of the bucket row.
For a complete breakdown of what is available in the detailed view, see the Bucket Details page.
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