PingHD vs Prevent Disk Sleep

PingHD is a free and open source network monitoring tool for Windows, Mac, and Linux. It allows monitoring of network devices like servers, switches, printers, and more by pinging them periodically and alerting you of any outages.

Prevent Disk Sleep is a small utility that prevents your computer from going into sleep or hibernate mode. It runs in the system tray and monitors disk activity, preventing your computer from sleeping when there is disk I/O.