Hello,
I had some problems with a 14TB hard disk, disk1 of my array. It is a TOSHIBA_MG07ACA14TE s/n 5160A003F94G.
It has been reported a month ago with read/write errors but I checked SMART and it seemed ok. So I just did a rebuild on itself and went on for a week. Then it did the same thing: read/write errors and disabled. I then decided to switch the SATA cable with another drive (disk2) that it is on the same LSI controller, and I plugged a spare power cable of my chain. I rebuilded it and it was ok, 0 error another time and all the content there.
Today it happened the same error. Since SMART seems ok to me, I have the doubt that it's just the "power chain" that is somehow faulty. I ordered another one and will try on friday to switch it.
I attach the diagnostic if anyone can confirm that it could be a power problem or another type of problem.
Thanks very much
tower-diagnostics-20231129-1341.zip