I bought two refurbished 12 TB Seagate HDDs, installed one in my server, put the other in a USB adapter, plugged it into the server, and then let it rot there until I would eventually decide to tackle the burden of doing backups. Well, I decided that the time had come, but when I tried to mount it, I couldn’t find it. It is not detected using fdisk, but I can see it with dmesg, and it is stuck at Spinning up disk... (see [1]). But that is not all: the most frightening thing is that it makes very faint clicking sounds.

Do you think it is broken and I need to get a new one, or am I just missing something? Also, is this adapter bad, or why did it break while doing essentially nothing but sitting around? (The adapter is the SABRENT EC-DFLT-DE)

[1]:

[16073.604900] usb 2-2: new SuperSpeed USB device number 11 using xhci_hcd
[16073.617618] usb 2-2: New USB device found, idVendor=152d, idProduct=a578, bcdDevice= 1.00
[16073.617629] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[16073.617633] usb 2-2: Product: SABRENT
[16073.617636] usb 2-2: Manufacturer: SABRENT
[16073.617639] usb 2-2: SerialNumber: DD5641988396B
[16073.621358] scsi host0: uas
[16073.622070] scsi 0:0:0:0: Direct-Access     SABRENT                   4102 PQ: 0 ANSI: 6
[16073.624565] sd 0:0:0:0: Attached scsi generic sg0 type 0
[16087.663473] sd 0:0:0:0: [sda] Spinning up disk...