Lifeguard
Western Digital Data Lifeguard Tools v.1.24
The downloadable Data Lifeguard Tools now comes in both DOS and Windows versions and was written specifically for the installation of Western Digital EIDE hard drives.
Western Digital Data Lifeguard Diagnostics v.1.24
Data LifeGuard is a software that performs hard disk diagnostics.
WD Diagnostics v.1.09.0002
WD Diagnostics is a diagnostics tool for Western Digital Hard Disks having SMART capability. Even if it is made by Western Digital and distributed as a free tool for checking their hardware, it can be used on any hard disk having SMART capability.