Reference the dynamic allocation documentation for the cause of the failure. Search problem reporting databases for a fix for the problem. If no fix exists, contact the IBM® Support Center.

S99ERSN, S99ERROR and S99INFO are fields in the IEFZB4D0 control block that logger uses to communicate with dynamic allocation.

The meaning of the dynamic allocation return code is documented in the Interpreting Error Reason Codes from DYNALLOC of the z/OS MVS Programming: Authorized Assembler Services Guide.

The meaning of S99ERROR is documented in Interpreting DYNALLOC Return Codes of the z/OS MVS Programming: Authorized Assembler Services Guide.

The meaning of S99ERSN is documented in S99RBX fields of the z/OS MVS Programming: Authorized Assembler Services Guide.

The meaning of S99INFO is documented in Interpreting Information Reason Codes from DYNALLOC of the z/OS MVS Programming: Authorized Assembler Services Guide.

After you have researched the meaning of the dynamic allocation return code, S99ERROR, S99ERSN and S99INFO, you may be able to find even more information about the meaning of S99ERSN by looking up a DFSMS message whose ID is IGDxxxx. You can compute xxxx: It is the value found in S99ERSN, converted to decimal. The documentation for this IGDxxxx message gives the meaning of the value found in S99ERSN, even if the DFSMS message does not appear in syslog. Not all values of S99ERSN map to an IGDxxxx message. Here are some examples of S99ERSN values and the related message ID: If S99ERSN is X'00042CF', the DFSMS message ID would be IGD17103. Sometimes zeros must be inserted after IGD. For example, if S99ERSN is X'00003F6', the DFSMS message ID would be IGD01014. IGD messages are documented in z/OS MVS System Messages, Vol 8 (IEF-IGD).