Help with LaCie Hard Drive

[phip900]

Hi, I recently bought a second hand LaCie Seagate 2big Thunderbolt 3 External Hard Drive (2 x 8tb). It's only showing as an 8tb drive, so I am hoping that it just needs the settings changed so it's not automatically backing up. Only, I cannot for the life of me get the drive to appear in the Lacie Desktop Manager. And I cannot find any customer services to call! (also the dekstop manager only opens if I click on it 20-30 times!). Any suggestions would be gratefully received!

(I'm using a 2017 iMac running Catalina)

 

[Fishrrman]

I'm going to "take a guess" (and it's ONLY "a guess") that there might be some kind of software/hardware incompatibility between Catalina, APFS, and the controller board on the drive.

Do you have another Mac you could try it with?

Do you happen to have a bootable copy of Mojave or High Sierra (I think both of those will boot a 2017 iMac)? I ALWAYS recommend that ALL Mac users keep an independently-bootable EXTERNAL drive around, for instances where the internal drive won't boot, or for maintenance, or "just because it's better to have one than not to have one"...

 

[Successful Sorcerer]

Did you also try to download/run Lacie Raid Manager? That's the goto software for that drive... Link It's possible it's setup in Raid for security or speed reasons.