Thank you kindly.

And what will be your advice for me? ApFs or hfs for a raid 0 and a raid 4 workstation, both ssd's?

@softraid-support Sure thing. The testest report you want is attached in the first post. If you need anything else besides the report, Happy to be of ...

Here's the screenshot mentioned in the previous post.

@softraid-support Thank you for your open and honest feedback regarding APFS. "APFS is not quite yet as stable as it should be ...", is what you said....

@softraid-support Oh my, Now it seems that everything starts to fail. Should I be worried or can I just restart. At this moment I'm afraid to do so.

@softraid-supportThank you for your quick reply. Yes, I can delete the volume and restore from back-up (thank you OWC Thunderbay!). What I cannot do...