I'm looking for any suggestions for external storage for my late 2012 ac Mini server. I've searched the forums and know the options are DAS, RAID, single drive USB3 and TB enclosures, but I'm specifically looking at solutions that will be okay running 24x7. What I mean here is that my understanding and observations are that when the Mini is running the server app, it runs 24x7 and does not sleep, thus leaving attached storage running 24x7, never allowing the disks to sleep. I tried an Akitio TB 2 Quad and it runs 24x7. Checked with the vendor and they said it will only sleep if the server sleeps and running 24x7 would result in a shorter lifespan. Also have tried USB3 single drive enclosures and those disks don't spin down either. I'll be using the storage for my 500 GB photo library, iTunes library and TM backups for the server and 3 other Macs in the house.What I want to avoid is any solution that will reach end of life quickly if it runs 24x7. I'll also be using my existing HDDs, which are not NAS quality for now to save money. I would eventually convert to NAS quality drives over time.