Template
NVR Hard Drive Sizing Calculator
An Excel calculator to determine how much HDD storage your NVR needs based on camera count, resolution, frame rate, and desired days of retention.
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209+ verified
File Format
Official PDF (0.2 MB)
Community Rating
4.8 / 5.0 (27 reviews)
Revision
Updated Jul 2026
Technical Standard & Runbook
NVR Hard Drive Sizing Calculator
1. Executive Overview & Operational Context
An Excel calculator to determine how much HDD storage your NVR needs based on camera count, resolution, frame rate, and desired days of retention.
Standard engineered by Arbre IT Support & Solutions for deployment across corporate offices, industrial manufacturing facilities in SITE & Korangi, and commercial buildings in Karachi.
2. Field Commissioning & Quality Assurance Checklist
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Verify primary power voltage and standby battery float voltage (13.6V - 13.8V DC).
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Test manual override key switches and emergency break-glass push buttons.
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Verify event logging timestamps against localized NTP servers (GMT+05:00 Karachi).
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Perform simulated AC mains power failure test and confirm minimum 4-hour battery endurance.
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Ensure all terminal screws are torqued to manufacturer specifications and cable glands are sealed.
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Verify firmware is updated to current vendor-supported release with default credentials disabled.
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