That ends my story of trying to build cheap, fast, and highly available storage for my home network. I have multiple USB drives connected to a headless server and I wanted to create a single backup point for each of these devices, as well as a system image (e.g. Time Machine) and generally have all my data available to all networked machines. I've tried various USB connected RAID storage solutions with multiple disks and none of them worked properly in my Linux environment. I ended up just biting the bullet and switching to a real NAS (over ethernet) instead of trying to get my server to handle USB3 speeds and all the little fiddly issues and annoyances I was having were gone. Setup was easy once you got the hang of the interface, and so far it's worked for every connection I've tried to make. It doesn't slow down during long file transfers, and the average speed seems good (considering most copy operations are done from USB2 devices). When copying directly from a PC to the EX2 rather than another USB device, I've only ever gotten past the high 50MB/s range, but it's still slightly better than the average 25MB/s I get with the Archive with USB2 on EX2.
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