Footnote: hdd_refresh_years
Category: field_maintenance · Applies to: on_prem_only
Description
Spinning HDD replacement cycle in 24/7 write workloads.
Value
4 years
Source
https://knowledge.blub0x.com/Media/Blog/NVR_Lifespan
Source type: industry_benchmark
Last verified: 2026-07-15
Confidence: high
Notes
24/7 write workloads are brutal on spinning drives. Industry consensus 3-5 years; calculator uses 4 years.
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