Updating hdd firmware with another
Well - the HDD firmware upgrade is under the control of the HDD manufacturers, and not related to the NAS manufacturer at all.The utilities and tools, sometimes bootable environments for standard computers, are provided by the HDD manufacturers.Most routers have a built-in update checker, which may or may not perform the entire process automatically.
There's always a slight risk with doing anything and nothing. That said, I have never heard of a disk firmware upgrade that was destructive to the data.
is a specific class of computer software that provides the low-level control for the device's specific hardware.