How to check the integrity of copying a large number of folders and files?

Question

Windows Server

Available:
win srv 2016, mssql 2017
12 folders (each ~ 180 gig, ~ 7 million files in ~ 65k folders) that were copied from one virtual machine to another (total ~ 2.5 TB)
This is the data used in the MS database SQL (scans + sig pulled into FS from the database)
There is nesting (S:\Storage_Ten\00\00\*)
Task:
Check copy integrity
As I already tried:
ExactFile in Create Digest mode with different checksum formats( md5, CRC32, SFV ?etc)
The program crashes all the time and doesn't finish the job...
How would you solve this problem?

Answer 1

How would you solve this problem?

I would take ready-made ones (for example, from mingw or cygwin) or compile find and md5sum or sha1sum under Vendu.

Answer 2

What kind of OS and file system do you have that do not guarantee you the integrity of the file when copying?

Answer 3

COPY

  /V           Проверка правильности копирования файлов.