very good rhetorical questions!We've been using an OWC 4 Bay Thunderbolt array forever, it would seem. It's set up as a RAID5 system.
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I just moved from RAID 5 on a single enclosure to a RAID 10 split between two enclosures. it’s a bit safer and it’s much faster (~3x), however the TB enclosure has to be three feet away from my iMac to get the speed benefit. I don’t like the noise. I am thinking of investing in a 10g network to keep all of these spinning disks somewhere far far away, and keep the speed
Many people are talking about NAS over a 1g network but man that is slow. No point in any RAID setup or single disk faster than 120 MB/s for a NAS on 1g. What happens when you need to move all that data!
I chose HFS+ for my spinning drives except when I need an encrypted volume because HFS+ encrypted is no longer an option.
Time Machine purportedly runs very slow over wifi and Ethernet ortherwise I would use an HDD slot for each family member in the enclosure. I guess there are some things we can do to help… NTFS?
I like your idea of SSD for Time Machine in a dock.