A few days ago, I purchased a 2TB 3D SSD to replace my user directory disk, in my Mac Pro, running Mac OS High Sierra 10.13.6. Before that, I had a 1TB Sandisk SSD, as my user homes disk. Worked perfectly, but I needed more space. All steps below, were done multiple times, because of the problem I’ll describe.
Connected disk in my computer.
Formatted it, using Apple’s Disk Utility.
Restored my user home directory from a backup disk.
The problem I am facing with the new disk is that several times, my system freezes, soon after boot, if I log in as a user, whose home directory is on the new disk. It usueally works for a minute or two and then it freezes and causes a reboot. If I log in as admin (whose home directory is on my boot disk, another Sandisk SSD 240 GB), everything works OK. If I log out from admin, and log in as a user (whose home directory is on the new disk) some times the computer freezes and needs to be rebooted, or some other times, it works as it should. If I replace the new disk, with the old 1 TB disk, everything works fine, every time!
I can return the new disk to the shop I bought it from, but (a) I’ll have to erase all my data from it and (b) the problem may not appear in their normal testing (connect the disk to a PC, see if it is recognised, format it and that’s it). Is there a test I can perform to verify the disk is OK?
Since the new disk didn’t come cheap (350 Euros), I am pretty frustrated. What do you suggest I do?