I have Hdd WD Elements 3Tb (WD30EZRX inside).
When I try clone it by DMDE i have message: Initial disk size 5 860 533 168 LBAx512 (3.00Tb), Available disk size: 1 565 565 872 LBAx512 (802Gb)
I manualy clone whole disk. But when ia try serach some partitions (use testdisk) or some files (Get databack (NTFS/FAT) i found nothing.
Please help my find the way to recovery file or repair disk.
Any help will be appreciated

There appear to be two problems.

The first is that you have removed the drive from its enclosure and have exposed its native 512e sector size, whereas inside the enclosure it appears as a USB mass storage device with a 4KB sector size. Your OS now sees a "4KB file system" on a 512e physical drive.

The second problem is that your computer's SATA driver appears to have a 32-bit LBA limitation. This accounts for the 802GB capacity.

You need to reinstall the HDD inside its enclosure.

_________________
A backup a day keeps DR away.