Question about LaCie 2big Dock

Thanks for the answers, Virginia Perrotta. I'm surprised that the 2big Dock is supposed to have raid capabilities - because LaCie explicitly offers the 2big RAID product. I had imagined that I would either get two individual, independent hard drives (where the failure of one does not affect the second), or a complete hard drive package (with the risk of data loss if one of the two drives fails) - previously known to me as JBoD. However, the answer now says that JBoD is exactly the opposite, i.e. two volumes which, as I understand it, should not cause any data loss to each other if one drive fails. As an alternative, I would have to buy two external drives with an enclosure, and I'm not hearing much good from LaCie, now Seagate.

Your assessment is absolutely correct, here is a clear explanation:

- All 2big Dock models (Thunderbolt 3) are technically identical, differing only in capacity and the installed drives.
- RAID capability: Yes, they are RAID-capable - there is an internal RAID controller (RAID 0, RAID 1, JBOD). The "2big RAID" is basically the same device, only with a simplified setup tool for pure RAID use.
- JBOD (Just a Bunch Of Disks) means two independent drives that appear separately in the Finder. If one fails, the other remains intact.
- RAID 0 = one large disc (fast, no protection).
- RAID 1 = one mirrored disc (slower, but more secure).
- APFS works, HFS+ often more stable for classic HDDs.
- Daisy-chaining via TB3-to-TB2 adapter works without problems, but the total bandwidth is shared.

You can use the 2big dock exactly as you described, two completely separate drives without mutual risk.