Microsoft Sentinel Pricing Calculator
Estimate your monthly SIEM operations and data ingestion costs instantly.
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Monthly Cost Comparison (PAYG vs. Selected)
| Component | Daily Cost | Monthly (31 Days) | Yearly Estimate |
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What is Microsoft Sentinel Pricing Calculator?
The microsoft sentinel pricing calculator is a specialized financial modeling tool designed to help cloud architects and security engineers estimate the monthly and annual costs of running Azure’s cloud-native SIEM (Security Information and Event Management). Because Microsoft Sentinel operates on a consumption-based model, accurately predicting your microsoft sentinel pricing calculator output is crucial for budget approval and resource allocation.
Who should use it? Organizations transitioning from legacy on-premises SIEMs to the cloud, SOC managers monitoring daily data volumes, and CFOs looking to optimize azure monitor costs. A common misconception is that Sentinel is a flat-fee service; in reality, it is a multi-layered pricing structure involving Log Analytics ingestion, Sentinel-specific processing, and long-term data storage.
Microsoft Sentinel Pricing Calculator Formula and Mathematical Explanation
To calculate the cost of Microsoft Sentinel, we combine three distinct variables: the Sentinel Ingestion Fee, the Log Analytics Ingestion Fee, and Data Retention charges. The formula utilized by our microsoft sentinel pricing calculator is as follows:
Variables used in the calculation:
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Daily Ingestion | Volume of logs collected daily | GB/day | 1 GB – 5,000+ GB |
| Sentinel Rate | Charge for SIEM capabilities | USD/GB | $2.00 – $4.50 (PAYG) |
| Log Analytics Rate | Underlying data storage ingestion | USD/GB | $2.30 – $3.00 (PAYG) |
| Retention Period | Duration logs are kept online | Days | 90 days (Free) up to 2 years |
Practical Examples (Real-World Use Cases)
Example 1: Small Enterprise (Hybrid Infrastructure)
A small company ingests 10 GB per day with a standard 90-day retention requirement. Using the microsoft sentinel pricing calculator, we see a Sentinel cost of roughly $620/month and a Log Analytics cost of $713/month. Since 90 days of retention is included for free with Sentinel, the total monthly budget would be approximately $1,333.
Example 2: Large Compliance-Heavy Organization
An organization ingesting 200 GB per day should move to a Commitment Tier. At this level, the microsoft sentinel pricing calculator shows significant savings. Instead of $4.30/GB combined, they might pay $2.10/GB combined. Furthermore, if they require 1 year (365 days) of retention, they will pay for 275 extra days of storage, which could add $1,800 to their monthly bill, emphasizing the need for siem budget planning.
How to Use This Microsoft Sentinel Pricing Calculator
- Input Daily GB: Check your current Log Analytics “Usage and Estimated Costs” page to find your average daily ingestion.
- Select Retention: Determine how long you need logs “Searchable.” The first 90 days are free; additional days are billed at roughly $0.10/GB per month.
- Choose Commitment Tier: If your ingestion is consistently above 100GB/day, select the 100GB tier to see the sentinel commitment tiers savings.
- Review Results: Look at the total monthly cost and the breakdown. Use the “Copy Results” button to share the estimate with your procurement team.
Key Factors That Affect Microsoft Sentinel Pricing Results
- Data Ingestion Volume: The most significant factor. More logs from firewalls and servers lead to higher costs.
- Log Analytics Workspace Configuration: Sentinel sits on top of Log Analytics. You pay for both layers unless you have specific azure monitor costs benefits.
- Commitment Tiers: Committing to a specific daily volume can reduce costs by up to 60% compared to Pay-As-You-Go rates.
- Free Data Sources: Certain Microsoft 365 logs (Office 365 Activity logs, Azure Activity logs) are ingested at no cost into Sentinel.
- Data Retention: Storing data beyond 90 days incurs a monthly per-GB fee. Using “Archive” instead of “Searchable” storage can save money.
- Automation and Logic Apps: While not calculated here, high-frequency automation triggers can add small incremental costs via Azure Logic Apps.
Frequently Asked Questions (FAQ)
1. Is there a free tier for Microsoft Sentinel?
While there isn’t a permanent free tier, Microsoft often provides a 31-day free trial for up to 10GB/day of ingestion for new Sentinel workspaces.
2. What is included in the 90-day free retention?
When Microsoft Sentinel is enabled on a Log Analytics workspace, the data retention for that workspace is extended to 90 days at no extra cost for the logs being analyzed by Sentinel.
3. Can I cap my daily spending?
Yes, you can set a “Daily Cap” in Log Analytics to stop ingestion once a certain GB limit is reached, though this is not recommended for security-critical environments.
4. How do Commitment Tiers work?
You commit to paying for a minimum amount of data (e.g., 100GB/day). If you ingest less, you still pay for 100GB. If you ingest more, you pay the discounted rate for the first 100GB and PAYG for the rest.
5. Does the microsoft sentinel pricing calculator include Logic Apps?
No, this calculator focuses on data ingestion and retention. Logic Apps (Playbooks) are billed separately based on execution cycles.
6. How do I reduce my Sentinel costs?
The best way is to use “Basic Logs” for high-volume, low-security-value data or use the data ingestion estimation tools to filter out noise before it reaches the workspace.
7. Is data export free?
No, exporting data to an Azure Storage account or an external SIEM usually incurs standard Azure bandwidth and data egress fees.
8. What are “Basic Logs” vs “Analytics Logs”?
Analytics logs are the default and are fully searchable. Basic logs are significantly cheaper ($0.50/GB) but have limited search capabilities and no alert rules.
Related Tools and Internal Resources
- Azure Cost Management Guide: Comprehensive guide to tracking cloud spend.
- Log Analytics Workspace Costs: Deep dive into the storage layer of Sentinel.
- SIEM Budget Planning: Strategic advice for enterprise security budgeting.
- Sentinel Commitment Tiers: Understanding the math behind reserved capacity.
- Data Ingestion Estimation: Tools for calculating log volumes from endpoints.
- Azure Monitor Costs: How monitoring and security billing overlap.