It doesn't really do everything that a real LVM does though. This was used to support those annoyingly bad Fusion Drives. They dropped them around 2020 I think.
According to the Wikipedia article about CoreStorage, it seems like the primary/only use case was Fusion drives (hybrid SSD/HDD hardware).
The article says “It renders your expensive storage hardware completely useless.” but I’m really curious what that hardware could actually be. This seems like a pretty dead technology.
Also dropped support for FireWire drives, as I just found out the hard way.
> Also dropped support for FireWire drives, as I just found out the hard way.
Erm... it was dropped in macOS 26 back in 2025 ?
https://www.techspot.com/news/108394-usb-killer-dead-apple-d...
did you go from 25 to 27?
MacOs 27 is a disaster. All of the sudden, I have 35% of a computer left to do any kind of work.
Among other signs of awfulness, macOS 27 (and 26 before it) half the battery life of my M1 Air, forcing me to stay on Sequoia for a 2nd year.
Couldn’t possibly have anything to do with a 6 year old battery I’m sure.
What does that mean?
Maybe referring to the Apple Superintelligence being auto-added to macOS 27.
I'll wait for Apple Supremeintelligence in macOS 29
For those of you who have never heard of this, it's macos's LVM. Why they didn't just refer to it as LVM is beyond me.
It doesn't really do everything that a real LVM does though. This was used to support those annoyingly bad Fusion Drives. They dropped them around 2020 I think.
> Why they didn't just refer to it as LVM is beyond me.
Because it isn't LVM, and giving it the same name as another similar-but-distinct technology would just make matters more confusing.
According to the Wikipedia article about CoreStorage, it seems like the primary/only use case was Fusion drives (hybrid SSD/HDD hardware).
The article says “It renders your expensive storage hardware completely useless.” but I’m really curious what that hardware could actually be. This seems like a pretty dead technology.
...like route 53? which is "dns configuration, but fancier"
AFAIK "Route 53" was a net new name for such a product?
I upgraded and this system is a dumpster fire. Lags, random crashes, performance issues, random CPU spikes...