This is a common question we hear often.

Here's why:

Snapshots don't care about volume size.
The size of your EBS volume doesn't determine your snapshot costs.
They care about changed blocks.
Every snapshot stores the blocks that changed since your last snapshot.
If your workload writes often, your bill grows silently.
High-write workloads create more changed blocks, multiplying your snapshot storage costs without warning.

The Hidden Cost of Data Churn

Most AWS users assume snapshot costs scale with volume count. But that's only half the story.

The real driver is data churn – how much data changes between snapshots. A 100GB volume with frequent writes can cost more than a 1TB volume with stable data.

💡 Key Insight

Two identical volumes can have completely different snapshot costs based solely on their write patterns.

What You Can Do

1.
Identify high-churn volumes
Use SnapTrace to see which volumes are driving your costs with excessive data changes.
2.
Adjust backup frequency
High-churn volumes might not need hourly snapshots. Daily could save you thousands.
3.
Optimize workload patterns
Sometimes simple application changes can dramatically reduce unnecessary writes.

Ready to understand your snapshot costs?

SnapTrace analyzes your EBS snapshots to show you exactly which volumes are driving costs through data churn.

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