DFS4761E OPEN DCB FAILURE FOR CTC DEVICE, MSPLINK msplink, ADDR addr

Explanation

The request to dynamically allocate the channel-to-channel (CTC) device during the IMS restart processing was successful, but the DCB that is associated with the device could not be opened. One possible reason for this error is that the available storage is not enough to process the dynamic allocation request.

In the message text:
msplink
The name of the physical link.
addr
The CTC device address.

System action

If the problem is internal to the IMS system, such as storage unavailability, IMS restart processing abends, usually with the abend code U0168.

If the problem is external to the IMS system, IMS restart processing continues and the dynamic MSPLINK is created. However, the new dynamic MSPLINK is not usable for MSC communications, and the status of the dynamic MSPLINK is NOTOPEN.

Output destination

The z/OS system console.

Operator response

Use appropriate MVS commands to determine why the CTC address is not available.

To enable communications for the dynamic CTC MSPLINK, complete the following steps:
  1. Delete the existing MSPLINK by using a DELETE MSPLINK command.
  2. Create the MSPLINK by using a CREATE MSPLINK command to allocate the CTC device again.

Module

DFSRMP20