You can enable or disable the partitioned directories feature by setting the pdir_enable tunable. Specifying a value of 1 enables partitioned directories, while specifying a value of 0 disables partitioned directories. The default value is 0.

You can set the pdir_threshold tunable to specify the threshold value in terms of directory size in bytes beyond which VxFS will partition a directory if you enabled partitioned directories. The default value is 32000.

The -d option of the fsadm command removes empty hidden directories from partitioned directories. If you disabled partitioned directories, the fsadm -d command also converts partitioned directories to regular directories.

The partitioned directories feature operates only on disk layout Version 8 or later file systems.