Moving external disks to a DAS?

[Host-in-the-Shell]

So I just wanted to follow up on this: I've successfully moved all my media into the DAS, which is running 4x HGST WD Ultrastar DC HC530 14TB Data Center drives. The DAS was simply plug and play with no issues. One of the drives came with 5 bad sectors, but so far it's been running fine after monitoring it for several days. That said, I already have a replacement on the way and will just RMA this one anyway once I clone the media into the new drive, because why not.

For some reason I expected this transition to be far more painful than it was, and other than the time it took to copy over the media and for Jellyfin to rescan everything, the only annoyance I can think of was having to repopulate my collections; everything else remained intact, such as watch history, tags and favorites. I'm honestly very happy with clearing out all that (physical) space that the external disks were occupying and now it looks very neatly organized.

Soon I will be upgrading the server to a modular atx low noise power supply, a new motherboard that supports the D4-320's USB Type-C 3.2 Gen2 10 Gbps connection, and a new CPU cooler. I may even throw in an AMD Ryzen 7 5800X I've freed up recently instead of just selling it as used.