For the Inodes:
- Backup blocks are 2MB uncompressed > 1 inode by block.
- One folder for each 1000 blocks even if only one is used > 1 inode by folder.
- VHD metadata just some MB by disk negligeable.
- Backup metadata also some MB by backup job negligeable.
With compression we are around 1MB/block so 1 million block/TB > 1million inodes /TB