@tsialex mentioned in response to using RAID 0 on Big Sur that it was not supported at that time:
forums.macrumors.com
What's the status of running software APFS RAID-0 on Monterey? Really not seeing a clear statement of what's possible on the Disk Utility User Guide:
EDIT:
Never mind, found the answer when looking through additional documentation:
Big Sur and Raid 0
Hello, Can anyone confirm if they have RAID 0 working with an external drive in Big Sur? Just found this: https://support.apple.com/guide/disk-utility/create-a-disk-set-dskua23150fd/mac And it seems Big Sur brings back support for RAID 0. I have a sonnet card with 2 SSD and would like to...
forums.macrumors.com
What's the status of running software APFS RAID-0 on Monterey? Really not seeing a clear statement of what's possible on the Disk Utility User Guide:
Overview of creating disk sets using Disk Utility on Mac
Use Disk Utility on your Mac to create a Redundant Array of Independent Disks (RAID) set, multiple disks that work as one disk.
support.apple.com
EDIT:
Never mind, found the answer when looking through additional documentation:
Create a disk set using Disk Utility on Mac
Use Disk Utility on your Mac to create a RAID set to optimize storage performance and protect your data.
support.apple.com