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haralds

macrumors 68040
Original poster
Jan 3, 2014
3,003
1,266
Silicon Valley, CA
On my Mac Pro 5,1 I started seeing APFS stalling issues and PCIE controller trouble especially with a Catalina disk set mounted.

There is frequent beach balling during heavy disk activities.

Correlation is not causation. But has anybody else seen issues? My MacBook Pro 2018 seems fine.
 
On my Mac Pro 5,1 I started seeing APFS stalling issues and PCIE controller trouble especially with a Catalina disk set mounted.

There is frequent beach balling during heavy disk activities.

Correlation is not causation. But has anybody else seen issues? My MacBook Pro 2018 seems fine.
No issues on my 5,1 with one PCIe disk and a bunch of SATA drives.
 
I've got 2 NVME SSDs and a OWC Mercury Accelsior PCIe installed on my MP4,1/5,1 running 10.14.6, 3 PCIe drives in total.
Everything is as good as I had hoped for, no problems.
 
No PCIe SSD yet, but just a 840 Evo on a PCIe SATA III card.

I use APFS since day 1 Mojave released. No beachball issue so far. That happened back in HS, but not in Mojave on my cMP.

I also have Catalina beta HDD mounted. And few more SATA HDD.
Screenshot 2019-07-27 at 6.39.41 PM.png
 
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