NAS cannot be reached
Separate power, IP discovery, admin access, file services, and storage warnings.
Start safe triage →Narrow the fault and protect data first
Diagnose home IT failures before you reset anything.
Home Storage Lab turns NAS and CCTV symptoms into a safe check order and stop rules, then connects the result to storage, RAID, and backup planning.
Diagnostic and calculator inputs stay on this device and are not sent to a server. How we handle privacy
Safe triage that starts from the symptom
The tools do not guess a vendor or model. Select what you can observe to get likely causes, data-protection priority, a check order, and actions to avoid.
Drive or storage-pool warning
Check backups and physical symptoms before repair, replacement, or rebuild.
Assess the risk →Recording failed or HDD is missing
Check live video, disk state, schedule, events, and time in order.
Triage recording →Nine focused planning tools
Recording storage
Convert camera count, average bitrate, recording hours, and retention days into TB and TiB.
Open calculator →Drive and RAID layout
Compare single-drive and RAID 1, 5, and 6 retention, failure margin, and write headroom.
Open planner →NVR and HDD purchase comparison
Compare exact models by official support, capacity limits, and durability information.
Open comparison →Usable RAID capacity
Compare RAID 0, 1, 5, 6, and 10 after redundancy and reserved space.
Open calculator →NAS expansion planning
Compare adding drives, replacing all drives, and moving to a larger NAS.
Open planner →RAID rebuild risk
Estimate rebuild time, full-read exposure, UREs, and additional-drive failure exposure.
Open calculator →Backup transfer time
Estimate completion time from data size, link speed, and realistic transfer efficiency.
Open calculator →Backup capacity and retention
Check target capacity, retention, RPO, RTO, and isolation together.
Open calculator →NAS power cost
Convert average power draw and operating hours into monthly and annual energy cost.
Open calculator →Buying and operations guides
CCTV retention
Why bitrate, codecs, and motion recording change the estimate.
Read →Choosing RAID
Compare fault tolerance before capacity efficiency.
Read →3-2-1 backup
Why RAID cannot replace a recoverable backup.
Read →NAS running out of space
Check recycle bins, versions, and snapshots safely.
Read →Hard-drive checklist
Compatibility, workload, noise, and warranty.
Read →How this site works
Review formulas, editorial rules, and limitations.
Review →