IBMulator has HDD sounds: https://www.ibmulator.org/

great emulator and nice guy too. maybe i should ask him if i can use his HDD sounds

they're planned at some point. I need to write a utility or custom controller rig with a pico that can step the head on an MFM drive in patterns i can record, then model stepping to cylinder in the hard disk controller.

Now that’s attention to detail!

truly glorious