RAID enclosure software is breaking on Apple’s newest macOS.
Apple released a fresh macOS build this week and early testers report that several vendor‑supplied RAID drivers fail to load. The problem shows up on Thunderbolt‑3 enclosures like LaCie’s 12Big, which worked fine on previous releases. Users see the devices disappear from Disk Utility, making any existing storage arrays inaccessible.
If your workflow depends on a hardware RAID, the outage forces a scramble for work‑arounds or a switch to software RAID. The issue highlights how little control users have over peripheral compatibility when vendors rely on Apple‑specific drivers rather than open standards. It also pulls the rug out from enterprises that count on these boxes for backup or media ingest.
Apple typically patches driver problems within a few weeks, but until then anyone with a macOS upgrade plan should verify vendor support or stick to an older OS version.