What happened to the 3.7" HDD?

Question

Hard disks

Hello.
There is a 3.7-inch 1.5 TB hard drive, which has been used for more than 5 years as an external drive for a WI-Fi router.
The disk is divided into 5 logical disks. On various topics of information storage. It is located in an external case with a USB 3.0 interface.
And so I tried to connect it to the Windows 7 x64 system, it is not recognized. disk management at the beginning of the connection seems to recognize 5 unidentified disks. But then it hangs when trying to update.
I connected it again to the router, it seemed to recognize it, and it is even possible to read files, albeit for some reason slowly.
but sometimes it crashes and the hard drive is no longer readable
Here is the crash log according to the Zyxel Keenetic Giga 2 router, after which the screw becomes unreadable

Nov 16 16:22:14ndmkernel: usb 1-1: reset high speed USB device using rt3xxx-ehci and address 2
Nov 16 16:22:44ndmkernel: usb 1-1: reset high speed USB device using rt3xxx-ehci and address 2
Nov 16 16:23:15ndmkernel: usb 1-1: reset high speed USB device using rt3xxx-ehci and address 2
Nov 16 16:23:45ndmkernel: usb 1-1: reset high speed USB device using rt3xxx-ehci and address 2
Nov 16 16:24:16ndmkernel: usb 1-1: reset high speed USB device using rt3xxx-ehci and address 2
Nov 16 16:24:46ndmkernel: usb 1-1: reset high speed USB device using rt3xxx-ehci and address 2
Nov 16 16:24:46ndmkernel: sd 0:0:0:0: [sda] Result: hostbyte=0x05 driverbyte=0x00
Nov 16 16:24:46ndmkernel: end_request: I/O error, dev sda, sector 2748369408
Nov 16 16:24:46ndmkernel: tntfs error (device sda8, pid 128): ntfs_bio_end_io_read(): Bio read I/O error.
Nov 16 16:24:46ndmkernel: sd 0:0:0:0: timing out command, waited 180s
Nov 16 16:24:51ndmkernel: sd 0:0:0:0: [sda] Result: hostbyte=0x00 driverbyte=0x08
Nov 16 16:24:51ndmkernel: sd 0:0:0:0: [sda] Sense Key : 0x3 [current]
Nov 16 16:24:51ndmkernel: sd 0:0:0:0: [sda] ASC=0x11 ASCQ=0x0
Nov 16 16:24:51ndmkernel: end_request: I/O error, dev sda, sector 2748370056
Nov 16 16:24:51ndmkernel: tntfs error (device sda8, pid 3): ntfs_bio_end_io_read(): Bio read I/O error.

In general, who was involved in the diagnosis of disks, tell me what to do and how to cure?

Answer 1

In short, the disk is dying.
Try not to use this drive until you buy a new one.
Then carefully drain all the valuable information and throw out the old one. Judging by the symptoms, he is not a tenant.
If you need more details - ask, there are options.

Answer 2

Prompt programs of diagnostics?