Mike Wuerthele Thu Jun 11 2026, 09:56 AM EDT · 2 minute read LaCie 12Big in its pure ambiance in 2017 Or no longer it is early days yet, but in case you rely upon vendors’ machine for your RAID enclosure, you in all likelihood must gather out what their macOS 27 plans are. Now we comprise had macOS 27 for all of 4 days at this level, and there would possibly maybe furthermore already be a cowl-stopping disclose for many who hang on to RAID enclosures. Now we comprise found several that appropriate don’t work under macOS 27. As an instance, I’ve bought a Thunderbolt 3 LaCie 12Big enclosure that I’ve had for some time. It runs pretty in Tahoe, on a Mac mini dwelling server that I’ve had for years. That LaCie 12Big doesn’t work in any appreciate in macOS 27. I’ve tried recent installs of the machine, rather loads of cabling, updating a Mac in put that it labored on in macOS 26, nothing works. All of my slow enclosures work and mount pretty. SoftRAID because it stands now from OWC works pretty in macOS 27 to location up a brand new array on those slow enclosures. This has happened earlier than, for certain. Talk over with Drobo and Pegasus enclosure owners about when Apple modified the device in which it handled instrument drivers a pair of years ago. Or no longer it is appropriate value bringing up that it is taking place all over again. To bag in entrance of this, I’m no longer talking about RAID arrays with DIP switches, rather loads of physical ways to configure the drives, arrays location up with Disk Utility, or Network Hooked up Storage devices. Right here’s about vendors that promote enclosures that want particular machine to urge on macOS. Who’s at fault, and why is that this taking place?I wish I had an precise respond for you. Apple does like changing issues, like the device in which it is carried out one thing with the boot selector in macOS 27. So there is one thing there. Also, macOS 27 also ships and not using a Intel code closing, which can maybe maybe have an effect on drivers compiled for Intel-handiest targets.. That will maybe maybe furthermore comprise one thing to realize with it too. Beta cycles are intended for developers to interchange their machine to the brand new macOS. They exist for making an are attempting out issues like this. But in our expertise within the previous, some issues made by third social gathering vendors bag left unhurried. Our advice as continually stands. Whenever you happen to comprise got mission important hardware, right here is no longer the time to strive out the betas. And, in case you comprise gotten got bought enclosures that rely upon older machine, like my LaCie 12Big, it is time to contact the supplier to glance what’s going on. And advance up with a opinion if there obtained’t be beef up in macOS 27.