Resource Monitor
Terminal System Resource Monitor
Windows — Disk (Snapshot)

Reference: Windows Task Manager disk view

Windows Disk
Terminal — Disk (Snapshot)

Resource Monitor disk display inside terminal.

Terminal Disk
How it works — Disk I/O
  • Reads /proc/diskstats to gather sectors read/written and compute deltas over time to get KB/s.
  • Shows read/write KB/s and top mounts by activity to surface hotspots quickly.
tips
  • Monitor the Disk slide and point out read/write spikes and affected mounts.
  • Explain how heavy I/O can bottleneck applications and slow system responsiveness.