IKJ52427I   SAVE CANNOT COMPLETE TO DATASET SPECIFIED

There is not enough space either in the data set specified, on the volume on which that data set resides, or in the directory of the partitioned data set. For more information about the default values for the EDIT command, see z/OS TSO/E Command Reference.

The number of entries that fit in a directory block depends on how much information the directory contains for each entry.