DFS2251W INPUT FILE INCOMPLETE, REPORT MAY BE INVALID.

Explanation

The IMSMON file used as input to DFSUTR20 is incomplete. The possible causes are:
  • The IMS Monitor data set (IMSMON DD statement) used to capture the online monitor records might not be large enough. Increase the data set size.
  • The IMS Monitor was not terminated in a normal manner (for example, IMS abended) and logging to IMSMON was halted.
  • The IMSMON file resides on multiple volumes, and not all VOLSERS have been concatenated in the input job stream.
  • An IMSMON file produced by the DB Monitor (Batch IMS) is being used as input to DFSUTR20. The correct utility is DFSUTR30.

System action

DFSUTR20 attempts to produce all requested reports, but the values might be invalid. The absence of the buffer pool statistics reports is a clear indicator that the IMSMON file is incomplete.