RAID 0
Hi everyone at Apple! Can i create RAID 0 with disc utility on two brand new SSD during Mac OS installation on the same two SSD? Thanks in advance.
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This is a user forum and we are Apple users like you, and not Apple.
Recent macOS versions use APFS with SSD here and not HFS+, but RAID 0 striping is possible with both APFS and HFS+. ,Software RAID 0 striping is less commonly seen with SSD storage in macOS, though Apple has provided the following statement in some now-deprecated documentation:
“Can RAID be used with Apple File System?
Yes. Apple File System does not directly implement software RAID; however APFS-formatted volumes can be combined with an Apple RAID volume to support Striping (RAID 0), Mirroring (RAID 1), and Concatenation (JBOD). APFS-formatted volumes can also be used with direct-attached hardware RAID solutions.”
Apple has provided the following set-up doc:
Create a disk set using Disk Utility on Mac - Apple Support
For creating a RAID 0 volume set, you’ll need to start the RAID 0 creation operation while booted from a separate macOS disk. If you want to do this at installation timr, you’ll have to establish the RAID 0 boot volume prior to installing macOS upon it.
And as the old IT joke goes, the 0 in RAID 0 is the number of volumes that can fail before data loss.