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I'm not at home right now to test, did you install the new update and see if it solves the original problem of this thread?
I'm just an interested observer at this stage - holding off a pcie SSD until the problem is identified, if not solved.
 
My opinion is that this has nothing to do with the Sonnet or NVMe drives. It's the way of how macOS manages the devices in PCIe slots, because if it was duo to mounting issues, there will be unmounted but present drive.

So here is my experience:
In slot 6 I have StarTech PCIe to NVMe U.2 adapter and connected to it is Micron 9300 Pro 3.84TB drive (Storage, APFS)
61vrk5nB6HL.jpg
197266.jpg

Last few days, on Sonoma 14.2.1 I had messeges like this, sometimes on cold boot, sometimes after restart:
Screenshot 2024-01-22 at 19.48.25.png

After that message, there is no drive mounted or drive present as a device at all in the system

2 days ago, I have installed Sonoma 14.3 and problem disappeared. Let's see for how long.
 
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bax,

Have had the same "Not Ejected" messages on and off.

I agree it very much looks like Apple's shoddy coding on bootup is causing these problems. Maybe some kind of timing problem?

Today's update to Sonoma 14.3 produced all the disks mounted - on the first reboot. Jury's still out until at least a month goes by...

Tom
 
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Which OWC card? There are a few that I can think of as options: 1M2 pcie4, 4M2 pcie3, 8M2 pcie4
Also on which mac pro? 7.1 or 2023 14.8 ?
I had a Sonnet Silent M.2 4x4 with 4 Samsung 970 evo plus SSDs.
Now I'm using an OWC Accelsior 4M2 PCIe 3 with the same SSDs.
It's on a Mac Pro 7.1.
 
My opinion is that this has nothing to do with the Sonnet or NVMe drives. It's the way of how macOS manages the devices in PCIe slots, because if it was duo to mounting issues, there will be unmounted but present drive.

So here is my experience:
In slot 6 I have StarTech PCIe to NVMe U.2 adapter and connected to it is Micron 9300 Pro 3.84TB drive (Storage, APFS)
View attachment 2340139 View attachment 2340140
Last few days, on Sonoma 14.2.1 I had messeges like this, sometimes on cold boot, sometimes after restart:View attachment 2340138
After that message, there is no drive mounted or drive present as a device at all in the system

2 days ago, I have installed Sonoma 14.3 and problem disappeared. Let's see for how long.

Mine hasn’t mount the drives twice already … so nothing fixed for me sadly…
 
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Mine hasn’t mount the drives twice already … so nothing fixed for me sadly…
Did you upgrade to Sonoma 17.3? Because yesterday evening I upgraded, but I had to go out, leaving MP switched on. Maybe it's a coincidence, but the SSD on the Sonnet card seems mounted without disconnecting. I'll try to test this evening for more hours.
 
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Did you upgrade to Sonoma 17.3? Because yesterday evening I upgraded, but I had to go out, leaving MP switched on. Maybe it's a coincidence, but the SSD on the Sonnet card seems mounted without disconnecting. I'll try to test this evening for more hours.
Yes, just after the update to 14.3 it hasn't mounted the drives and once again switching back from windows.
 
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Did you upgrade to Sonoma 17.3? Because yesterday evening I upgraded, but I had to go out, leaving MP switched on. Maybe it's a coincidence, but the SSD on the Sonnet card seems mounted without disconnecting. I'll try to test this evening for more hours.
You mean Sonoma 14.3 ? 😉
 
Mine hasn’t mount the drives twice already … so nothing fixed for me sadly…

Yeah ditto. It literally flubbed it on the reboot after the update. And last night, I had to reboot it 4 times to get it to mount. Having to fight with it that much was a first.

Definitely not fixed, and possibly even worse now.
 
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Well the issue continues on my 2019 MacPro using 14.3.

This morning I had to boot, shutdown, boot again, shutdown again then reboot for a third time before all drives mounted.

Apple - fix this POS of an OS.
 
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^^^^Have you tried going into Disk Utility and mounting the disks from there?

Lou
Disk Utility does not see the drives. I have been on the phone with Apple to reset the Recovery Mode password.
I need to take the machine to an Apple Store and let the "Genius" do the reset. This should be fun!

Which previous version of the OS does not have the issue?
 
Well the issue continues on my 2019 MacPro using 14.3.

This morning I had to boot, shutdown, boot again, shutdown again then reboot for a third time before all drives mounted.

Apple - fix this POS of an OS.

Did that dance this morning. And again tonight. Definitely has gotten worse with this update. Probably going to move to an external thunderbolt drive at this point, even though it's half the speed. I've spent almost 45 minutes of my day today just rebooting, trying to get my drives to mount.

Which previous version of the OS does not have the issue?

This goes back as far as Monterey for me.
 
Just an update, it's been one week since I downgraded from Sonoma to Ventura 13.6.3. Since downgrading, I've not had a single issue with my 2 Sonnet 4x4 PCIe cards mounting and nothing has changed hardware or software wise, it's just Mac OS. Under Sonoma, it was random which NVME drives would mount.

You would think the most valuable company in the world would invest more testing into their main piece of software. Allowing such a singificant bug to slip through is laughable. I'm seriously considering never buying another Mac after the downtime this has caused me.
 
Just an update, it's been one week since I downgraded from Sonoma to Ventura 13.6.3. Since downgrading, I've not had a single issue with my 2 Sonnet 4x4 PCIe cards mounting and nothing has changed hardware or software wise, it's just Mac OS. Under Sonoma, it was random which NVME drives would mount.

You would think the most valuable company in the world would invest more testing into their main piece of software. Allowing such a singificant bug to slip through is laughable. I'm seriously considering never buying another Mac after the downtime this has caused me.
Same here, I'm so disappointed.
I'm considering to abandon MacOS and switch to Windows 11.
The stability, cpu and gpu performance is so much better under the Win11.
Microsoft also updated the UI and it is on par with MacOS now IMO.
The drivers are regularly updated, not like apple abusive strategy to just ditch the MacIntel users.
They sold MP7.1 in 2023 so there should be bug fixes and new amd drivers for pro users for many years.

I refuse to buy MacStudio, the next workstation will be PC under Win11 sadly.
In MacStudio everything is soldered and can't be upgraded and MP8.1 just doesn't make any sense...
I understand this approach for portable devices but for workstations?
God damn it Apple... they've become so aggressive and so greedy, beyond imagination...
I won’t even start about the right to repair…
 
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Well, So much for that hope.

All 8 SSDs mounted fine the first two morning startups after updating to Sonoma 14.3.

But not this morning. The 4 SSDs that used to go missing are not there again this AM. Oh, well. What a mistake to think that Apple had suddenly become competent in their MacOS coding. I guess I'm an optimistic fool.

Tom
 
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I decided not to take my Mac Pro to the Apple Store to reset the recovery firmware password that I forgot.

For this issue I have moved everything to a single Samsung 990Pro 4TB SSD that seems to mount okay.

The grief of dragging the computer to the Apple Store and reverting to an earlier OS is just not worth it.

When I actually need to get at the recovery feature I will deal with the Apple Store at that point.
 
In support of my perception that the failure to mount is an Apple problem, here's Sonnet's latest reply to my troubleshooting email exchanges:

Our engineers have been working hard on this and have now been able to reproduce the issue. Just recently we were able to duplicate this issue with competitor's hardware. From the data we have gathered from yourself and other customers, it does seem that an update released by Apple in the 2023 time frame for multiple OS' caused the issue with drives dropping off. We are trying to narrow down exactly which ones. We are in the process of filing a bug report to Apple so that they can get the issue fixed in a future OS release.

So now we wait to see if Apple is able to muster enough effort and technical competence to solve this.

Not holding breath,

Tom
 
Anyway I tried to leave MP switched on, 1 night and 1 day after upgrading days ago to 14.3.
Yesterday evening, SSD on the Sonnet card still remained mounted. I'll investigate a little more in the future days.
 
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As a test, once the drives mounted I put my Mac Pro to sleep. After a while I woke it up and some drives were missing.

As stated earlier I have moved everything to a 4TB Samsung 990Pro that always mounts. This is a temporary workaround until things are fixed.
 
Another wonderful surprise from Apple!

As I've noted before I have 8 SSDs, 4 on each PCIE card. The cards are Sonnet, the SSDs Samsung. Latest MacOS.

Here's the deal: sometimes all 8 SSDs mount on a cold boot. Sometimes only 4. If 4 are missing, they've always been on one of the two cards. So one PCIE card will have 4 mounted SSDs, the other card disappears entirely.

Well today there's a brand new wrinkle: all 8 SSDs mounted, then after some hours two disappeared - one from each PCIE card!

So at the moment I have 6 SSDs mounted, 3 on each card.

Never a dull moment...

Tom
 
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As a test, once the drives mounted I put my Mac Pro to sleep. After a while I woke it up and some drives were missing.

As stated earlier I have moved everything to a 4TB Samsung 990Pro that always mounts. This is a temporary workaround until things are fixed.
Could it be a drive firmware thing?
 
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