MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0 Limitations Relating to NDB Cluster Disk Data Storage

Disk Data object maximums and minimums.  Disk data objects are subject to the following maximums and minimums:

In addition, when working with NDB Disk Data tables, you should be aware of the following issues regarding data files and extents:

Disk Data tables and diskless mode.  Use of Disk Data tables is not supported when running the cluster in diskless mode.