U0021

Explanation
JES3 Spool Data management encountered an error
when attempting to build  a cellpool for the File Directory. R3 contains
the return code from the IATXBPL service.

System action
JES3 initialization ends.

Programmer response
Search problem reporting databases for a
fix for the  problem. If no fix exists, contact the IBM® Support
Center.

Module
IATINIO