Footnote: hdd_failure_rate_annual
Category: field_maintenance · Applies to: on_prem_only
Description
Annual HDD failure rate (per SIA 15-item ongoing cost list).
Value
0.05 fraction of drives per year
Source
https://www.securityindustry.org/2017/02/28/examining-video-surveillance-total-cost-of-ownership/
Source type: peer_reviewed
Last verified: 2026-07-15
Confidence: high
Notes
SIA standard rule: ~5% of disk drives fail per year in 24/7 surveillance workloads.
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