The type of FRUs one will keep on-hand are: Memory modules, hard drives, keyboards, and wireless card
To effectively maintain and support the hundreds of large storage disk arrays your company sells, it's crucial to have a well-stocked inventory of Field Replaceable Units (FRUs) on hand. As you travel between customer sites, these FRUs will be essential for troubleshooting, replacing faulty components, and ensuring the smooth operation of the disk arrays.
FRUs are field replaceable units. These are internal devices that can be replaced in the field with relative ease if they become defective.