When a temporary file directory is specified by the BSORT_TMPDIR of startup file, tmpdir operand (-option option in bsortex command) or environment variable TMPDIR, note the following points.
Specify the directory that can be used.
When specifying two or more directories, delimit by the colon and specify the directory without putting the blank.
Example
1) Correct specification
/sortwk1:/sortwk2
2) Wrong specification
/sortwk1 : /sortwk2
Specify directory with enough empty space.