AD DS partitions can be created and managed by using the NtdsUtil.exe command-line tool. This tool also allows the users to perform various other AD DS related management tasks, such as:
Cleaning up domain-controller metadata after its unrecoverable failure.
NTDS database maintenance, which includes creating snapshots, relocating, files, database and offline defragmentation.
Resetting the password utilized to sign in to the DSRM (Directory Services Restore Mode).
Reference:
https://www.oreilly.com/library/view/active-directory-5th/9781449361211/ch04.html