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How to use a SoftRAID startup volume with High Sierra

If you're using High Sierra, and booting up from a SoftRAID volume, you'll need to follow the steps given in this forum post, since the macOS High Sierra Installer does not recognize SoftRAID volumes as valid startup volumes.

New OWC Express 4M2 enclosure performance results
From an announcement on June 28, 2018:
OWC Releases the Infinitely Configurable Express 4M2
Pint-sized powerhouse takes digital capabilities to a new level.

This enclosure can accept 4 NVME drives, up to 2TB each, for 8TB maximum capacity and up to 2800 MB/s in performance. Incredible!

If you purchase one, I would like to see what brands, models, sizes of drives SoftRAID users install into these enclosures, and what performance they get.

Benchmark test to use:
(so we get reasonably standard results posted):
AJA System Test Lite
Resolution: 5120x2700 5K RED
Test File size 64GB
Codec Type: Sony 16 bit RAW
Target Disk: Freshly created or "erased" SoftRAID RAID 0 volume, with 64K Stripe unit size
Exact Mac model you are using. (i.e, iMac Pro 1,1)

Click onto the graph icon in AJA to expose the performance chart.
Take a command-shift-4, then space bar, screen shot of your results.

Post the screen shot here.

I am curious to see various NVME drive performance results. There is such a wide range of drives available, results may vary quite a bit.

Do NOT try using these enclosures with the Apple Thunderbolt 3/2 adapter on a Thunderbolt 2 port. It will not be stable.

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