As the large-file support and large-disk support was introduced at the same time the GNU C Library exports 64-bit inode structures on 32-bit architectures at the same time when the Unix LFS API is activated in program code. When the kernel moved to 64-bit inodes the file system ext3 used them internally in the driver by 2001. However the inode format on the storage media itself was stuck at 32-bit numbers. As mass storage devices moved to the Advanced Format of 4 kilobyte per block the actual limit of that file system format is at 8 or 16 terabyte. Handling larger disk partitions requires the usage of a different file system like XFS which was designed with 64-bit inodes from the start allowing for exabyte files and partitions. The first 16 terabyte magnetic disk drives were delivered by mid 2019. Solid-state drive with 32 TiB for data centers were available as early as 2016 with some manufacturers forecasting 100 TiB SSD by 2020.