JFS2 size limits

Extremely large JFS2 file systems that contain very large files are more practical to maintain than those that contain a large number of small files. When a large file system contains many small files, the fsck command and other file system maintenance tasks take a long time to run.

The size limitations of the JFS2 file and file system depend on the value of the lff filesystem attribute:
Item lff=yes lff=no
Maximum size of a JFS2 file system: 4 PB 32 TB
Maximum size of a JFS2 file: 4 PB 16 TB
Minimum size of a JFS2 file system: 16 MB 16 MB