MP 7,1 Bizarre Storage Issues

[andyherman]

My 2019 Mac Pro has been exhibiting some bizarre behavior.

I have 2 SSD's installed, which the Mac Pro identifies as "external" drives. The first is an XPG and the second is a Sabrent Rocket. They are located on separate PCIE expansion cards.

About 3-4 weeks ago, the Sabrent Rocket SSD disappeared from both the Finder and Disk Utility. NOTHING has changed on this system. NO new hardware OR software. I tried everything I could think of to resolve the issue, including resetting the PRAM. Nothing I did resulted in the system "seeing" the Sabrent Rocket drive.

Today, I just downloaded a boatload of drivers, firmware, and other software for my Canon image Prograf Pro-1000. The files downloaded to my "Downloads" folder so I created a new Canon image Prograf Pro-1000 folder on my hard drive and moved the Canon files into it from the Downloads folder. As I was looking at the Finder window I just noticed that the Sabrent Rocket drive has suddenly "re-appeared"!

Any thoughts?

 

[cobra521]

Andy,

No idea what may have caused that problem.

Only thing I'm sure about is getting a backup of the content of that drive if you can. Unless it's just a scratch drive...

Tom

 

[jscipione]

I don’t have a 2019 Mac Pro so I can’t say why this would happen, but my suspicion is that you needed an SMC (T2) reset for it to see the drive again. That involves turning the machine off, unplugging it, waiting 15 seconds, plugging it back in and turning it on again. Perhaps you did an SMC (T2) reset incidentally, and that fixed the problem.

 

[andyherman]

I don’t have a 2019 Mac Pro so I can’t say why this would happen, but my suspicion is that you needed an SMC (T2) reset for it to see the drive again. That involves turning the machine off, unplugging it, waiting 15 seconds, plugging it back in and turning it on again. Perhaps you did an SMC (T2) reset incidentally, and that fixed the problem.

That may have happened as we have a lot of power outages where I live, but why would it "lose" just one of the SSD drives and not the other - just wondering?

 

[cobra521]

I have a thread about an Accelsior 4M2 card that killed four HP EX950 SSDs elsewhere on this forum. This is why I suggested you back up the contents of that SSD while it is visible. A couple of the SSDs did come back intermittently but ultimately they all became inaccessible. So in my case I believe it was the card that killed them, not power outage problems. None of the other SSDs in my system had any problems.

Tom