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Old 08-05-2022, 05:26 PM
Ben Jenssen's Avatar
Ben Jenssen Ben Jenssen is offline
Join Date: May 2000
Location: Oslo
Posts: 4,768
Default First experience with NVMe M.2 in enclosure - bad.

I thought I'd try to give my little M1 Mini a little 'upgrade' by adding a really fast external 2TB drive to complement the internal 512BG. It would replace the 2TB 2.5" in USB-C enclosure that I have now, which has a r/w speed of just under 400MB/s. True Thunderbolt drive enclosures give transfer speeds up to 1550MB/s. You can find many more SSD enclosures that say "Thunderbolt compatible" but notice they are cheaper, and that's because they are not thunderbolt 3, they are USB.

I bought this:

Kingston NV1 2TB M.2 2280 NVMe PCIe Internal SSD

And this:
ORICO Thunderbolt3 M.2 NVMe SSD kabinett
(Sorry, Norwegian page. I can't find much onfo elsewhere. Might be a clue.)

I'll try to make this short.
The assembly was easy. I plugged it in and immediately mesured the r/w speed to about 1500/1200 MB/s. OK.

So I played around a bit, everything was fine, and I started a copying of a 800GB folder in Finder. It stopped about half-way and gave a error about not being properly unmounted, just like if you pulled the cable.

Since then, I've tried anything I can think of:
Different ports.
Different cables.
Different format (APFS/HFS+).
Different partitioning.
Unplugging everything else.

The drive will always fail in a similar way;
I copy things, at once or in increments, when I reach between 4-600GB it ejects, and I get the unmount warning. Then, it's a struggle to format it again, because if not it will self eject whenever you get it to show.

When I manage to reformat it, it seems to work perfectly, I can partition it in Disk Utilities, copy files, anything. Until that moment when it's about 30% full - then it ejects and is unuseful until reformated.

Must be said also that this is very unusual behavior. Disk Utilities can go into a spinning wheel freeze f.ex. Often, if I have had this breakdown of the drive, restart will take much longer than usual, and I will get a "blip" mac system sound when desktop appears, but without any alert or anything.

I'm guessing this is the enclosure, so I'm returning it. I'll keep the 2TB blade and see if I can put it somewhere else. Would've been nice to have a combined dock/enclosure, but they seem very expensive.

Any recommendations appreciated.
Life-long audio enthusiast and small studio owner. Retired.
Mac Mini M1, 16GB RAM. 512GBinternal(3000MB/s),2TB(1300MB/s),2TB(350MB/s)
MacOS 11.6.8. PT 2020.12.1 (Reinstatement on hold for M3 macs and AS native PT)
Topping D50 DAC, Dynaudio BM6p, Artist Mix, SSL UC1, EuControl on iPad.

Last edited by Ben Jenssen; 08-09-2022 at 02:44 PM.
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