SeaTools is a free diagnostic tool for hard drives and solid-state drives that is designed to help diagnose, monitor, and repair storage device issues. SeaTools tests the physical media on hard drives and SSDs, checks the performance of the device, and performs a thorough analysis of the drive's health. Additionally, SeaTools can be used to detect and fix disk errors, check the disk's temperature and power levels, and scan the disk for potential malware. SeaTools is available as both a desktop application and an online web-based tool, and it is compatible with Windows, macOS, and Linux operating systems.
Some Seagate hard drives are not compatible with SMART, and only SeaTools can show you the disk status.