DiskMaster vs ELX-HealthMonitor

DiskMaster is a free desktop application for monitoring drive health on Windows, Linux, and macOS. It reads SMART attributes, self-tests, and test logs, then calculates a health score out of 100 and shows which attributes account for deductions; performance has a separate score. It stores readings in SQLite and charts changes, with alerts for shifts such as increasing drive counters. A read-only surface scan times blocks, rereads unreadable sectors for confirmation, and maps them to sectors. DiskMaster can identify files associated with those sectors and try to rescue copies while skipping unreadable bytes. Optional repair tools include sector and filesystem repair, zero-fill, and sanitizing bad sectors the filesystem marks as free. Alerts can go to Slack, Discord, ntfy, email, desktop notifications, commands, or JSON webhooks. Its CLI exports text, HTML, JSON, and CSV reports. SATA and USB monitoring needs no third-party tools; NVMe health logs and macOS use optional smartmontools. Raw SMART access requires administrator or sudo privileges.

ELX-HealthMonitor is a free web tool for viewing current Linux server activity and historical readings. It reads data directly from /proc, /sys and smartctl, without a separate collector or time-series database. Metrics cover processor, memory, disks, filesystems, network, temperature and processes. SMART details include drive health, temperature, power-on hours, reallocated and pending sectors, SSD wear and lifetime writes. RAID views show array state, members, failed disks, resync progress, mirror consistency and the last check's mismatch count. For systemd units, the interface reports processor, memory, disk I/O, task count and restarts, and lets users start or stop units or change boot behavior. Alert rules support hold-down periods and email through SMTPS, STARTTLS or plain SMTP. History retains three days of raw readings by default, then five-minute average, minimum and maximum buckets; data is deleted after a month by default. Supported systems are Debian and Ubuntu with systemd on amd64, arm64 and armhf. The web interface uses port 8555 by default. smartmontools is recommended and required for SMART data. Settings and history stay local, with no analytics or crash reporting.