What this triage does
The recording path is split into camera stream, disk, policy, event detection, and time. A missing stream comes before schedule checks; a visible stream with no disk points to cabling, bay, or compatible-drive checks.
Incorrect time can store footage under the wrong date. Event recording also needs a working trigger and rule, not merely motion in the scene.
Stop conditions: protect data first
- Evidence footage is near overwrite or has no second copy.
- The recorder reports no HDD or Abnormal and preservation needs are unknown.
- The drive clicks, overheats, or smells burnt.
Decision basis and official sources
- Hikvision NVR HDD 오류 상태 — Original pages checked September 20, 2026
- Hikvision No record file 설명 — Original pages checked September 20, 2026
- Synology Surveillance Station 녹화 문제 — Original pages checked September 20, 2026
Menu names and supported procedures vary by vendor and model. This tool does not replace official instructions; its rules are reviewed when sources change.
Next steps
After recording is restored, recalculate retention and review fault margin in the drive/RAID planner.