DFS3421X UNABLE TO FIND xxxx CONTROL BLOCK NAMED yyyyyyyy.

Explanation

This message is issued during an IMS cold start if a PDIR or RCTE cannot be found because either no PDIRs exist or no RCTEs exist. xxxx is the control block type, PDIR or RCTE. yyyyyyyy is set to DFSHSHT to indicate the internal resource control block hash table is empty.

These blocks can be loaded from MODBLKS, or using an automatic import from the resource definition data set (RDDS).

System action

IMS issues an abend 3421 following message DFS3421X. IMS terminates abnormally.

Programmer response

If dynamic resource definition (DRD) is not enabled, check that IMS.MODBLKSx contains the correct control block modules, DFSSMB0x, DFSPDIRx, DFSDDIRx, and DFSRCTEx. If these checks do not indicate a problem, contact IBM® Software Support for assistance.

If DRD is enabled, and resource definitions are being imported from the IMS.MODBLKSx data set during a cold start, check that IMS.MODBLKSx contains the correct control block modules, DFSSMB0x, DFSPDIRx, DFSDDIRx, and DFSRCTEx. If resource definitions are being imported from an RDDS during a cold start, check that the correct RDDS is being used and that the RDDS has a complete set of resource definitions. If these checks do not indicate a problem, contact IBM Software Support for assistance.

Problem determination

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