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Is this possible with any of the newer MacOSs ? Apple removed the capability when it released High Sierra, but wondered if they had added it back in during the past two decades or so (lol). If any currently know, please share, thanks !
Mac mini, macOS 10.12
No, Apple does not tend to reintroduce features once removed from the OS. If you have not noticed, macOS is becoming more & more like iOS.
FYI, while Apple made it hard for macOS 10.14+ to boot from a RAID array, it was still possible for several more years as long as macOS was cloned onto the RAID array...you just could not install or update/upgrade macOS. But Apple did finally remove the ability to boot from a RAID array even with this work around with a later version of macOS (don't recall which one finally removed it).
No, Apple does not tend to reintroduce features once removed from the OS. If you have not noticed, macOS is becoming more & more like iOS.
FYI, while Apple made it hard for macOS 10.14+ to boot from a RAID array, it was still possible for several more years as long as macOS was cloned onto the RAID array...you just could not install or update/upgrade macOS. But Apple did finally remove the ability to boot from a RAID array even with this work around with a later version of macOS (don't recall which one finally removed it).
The current SSD's read/write speed have taken a huge leap -- RAID 0 (strip) usually would require 2 drives for the "strip" process. The current individual Mac (Mac Mini specifically) only has 1 physical drive -- in short answer for your question -- no, and current Mac internal SSDs are very impressive.
If you really want RAID 0 (which I am not a fan of RAID 0 - due to possible data corruption; RAID 5 or RAID 10 are better choices) - that you have to resort to "external hardware solution/multiple-drives enclosure" via Thunderbolt connection. Personally, I have not tested these RAID in Mac. Once again, the internal SSDs in my M1 MacMini/M1 MacBook Air/14" MacBook Pro are extremely fast and reliable, all with 512Gb.
Boot from RAID 0 on a Mac Mini ?
