i have the following setup:
Macbook Pro -> connected to WD Harddrive via Firewire -> daisy-chained to a firewire sound card -> connected to studio monitors / final output.
it worked fine for a while, but recently i have experienced weird things while playing back audio such as sudden mutes and distortions. i think it has something to do with the WD going to sleep mode after a certain time. i'm generally wondering if this connection setup / routing is healthy for the equipment?