I seem to be having the same or similar problem as documented in this post from a few years ago, but the workaround is not taking: https://forums.urbackup.org/t/migrate-storage-to-for-backupstorage-move/3910
Running UrBackup Server 2.5.30 (updating from 2.5.28 did not improve the situation) on Windows Server 2019.
I am attempting to migrate from a maxed out 16TB NTFS drive with a 4KB cluster size to a new NTFS drive with 30TB. I’ve tried multiple different cluster sizes, and even a drive with the exact same settings as the current backup drive and the log always only shows this, even on debug level:
2023-03-07 14:17:44: ERROR: LMDB: Failed to open LMDB database file (There is not enough space on the disk.
2023-03-07 14:17:44: ERROR: Error opening inode db
The migrate_storage_to file exists and points to a directory on the new, clean 30TB NTFS drive. The inode_db folder is created, as are the two files, inode_db.lmdb at 8KB and inode_db.lmdb-lock at 256KB. The permissions are all defaulted, but files can be read and written to the drive.
Any assistance would be greatly appreciated.