Chapter 9: Calculator
Five interactive real-time calculators for log security system design, sizing, and compliance planning
Calculator 1: Log Storage Sizing
Estimate raw vault and index storage requirements based on EPS, log size, and retention period
10050,000
100B5,000B
7 days365 days
1 yr10 yrs
Raw ingest rate—
Daily raw volume—
Hot storage (raw, uncompressed)—
Hot storage (after compression)—
Index storage (10% of hot)—
Archive vault (compressed)—
Deployment tier—
Total Storage Required—
Calculator 2: Collector Capacity & Buffer Sizing
Determine the number of collectors and buffer disk size for your EPS and outage tolerance requirements
10050,000
1.5×5×
1h168h (7d)
100B5,000B
Design capacity (EPS)—
Collectors required—
CPU per collector—
RAM per collector—
Buffer volume per collector—
Buffer disk per collector—
Calculator 3: Network Bandwidth Requirements
Calculate required network bandwidth for log transport between zones, including overhead and burst headroom
10050,000
100B5,000B
5%30%
1.5×10×
Raw data rate—
With TLS overhead—
Burst peak bandwidth—
Recommended link speed—
Total inter-zone bandwidth—
Calculator 4: Compliance Retention Checker
Verify whether your planned retention period meets the requirements of major compliance frameworks
1 month24 months
1 year10 years
Overall compliance score—
Frameworks fully met—
Frameworks partially met—
Compliance Status—
Calculator 5: TCO & Deployment Cost Estimator
Estimate total cost of ownership for hardware, software, and operational expenses over 3 years
1 pair10 pairs
5 TB500 TB
14
Hardware (Year 1)—
Software licenses (Year 1)—
Installation & integration—
Annual support (Years 2–3)—
Annual software renewal—
3-Year TCO—