So I have two 7400's going Eos next year and I've spent most of my time emptying them as we speak onto their replacements. With that said, we're wanting to turn one into a lab and use the second as spare parts for the first.

Both units are 7400's with roughly 216 disks each. Bit large for a lab, but I'd be afraid to downsize without a factory reset. With that in mind, I'm guessing I need to factory reset the unit I'm pulling out to use for spare parts. Any suggestions on how to do this would be great. The main thing is to keep it from rejecting disks removed from the other system. I assume nodes can be replaced like former nodes (SSD swap).

Second question is if I'll have any issues leaving one turned off for an extended length of time, or should I power it back on and just leave it running with no data being moved? I know we're not talking tubes, but spinning things tend to not like spinning after sitting for a long time.

Thanks