OpenZFS on OS X

I had my ZFS drives on an older Mac mini. I'd like to ditch it though and run my ZFS drives on my MacPro in a VM.

Why do this?
1) macOS stops when it wants to go to disk and you have attached spinning media that needs to be spun up, even if you don't want that media.
2) kernel memory exhaustion

Hopefully having an intermediary VM will prevent these problems for me.

The problem -- every time the VM goes down the OS sees the physical disks become unowned and asks me if I want to reformat them.
No. I don't want to reformat them.
And I don't want to have to click 10 "Ignore" buttons.
And I don't want to have to reattach the drives to the VM each time, but that is a Parallels issue, most likely, and I'll try to fix it with them.

Any suggestions or pointers would be appreciated and thanks for reading.

Jim

Am I correct in thinking that if macOS didn't poll the disks at all you'd be happy?

The only way I know to do this is to modify the AppleAHCIPort.kext.

Here's an old explanation:
look at step 4 at: https://appuals.com/fix-the-disk-you-in ... -computer/

And here's a newer posts referencing Catalina.
https://www.insanelymac.com/forum/files ... iportkext/
Note one of the tags below the heading is "disk inserted is not readable", so it may do the job for you. It may wreck your machine…

Thanks, Tangles.

Ideally I would leave SIP on and not replace Apple's shipping KEXTs.

Probably disk arbitration is too late in the process. But I may learn something trying.

Thanks,
Jim