HDD health & failure signs
Baselines, realloc slopes, and acoustic/latency clues before SMART spikes.
Guides hub
HDD, SSD, USB/NAS, and alerts
Problem-first reading paths. harddisksentinel.io is independent educational material — not the vendor. Official software: hdsentinel.com.
SSD wear, heat, and throttling
Wear leveling vs false confidence, plus thermal logs under load.
USB enclosure & NAS SMART gaps
USB bridges, bays, and vibration when disks live off the motherboard.
Alerts, SMART, then backup
Which counters decide, and restore drills before the disk quits.