DFS0067W SLDS READ DATASPACE STORAGE RELEASED

Explanation

Either a /STOP SLDSREAD command was entered or z/OS® notified IMS that a shortage of auxiliary storage was encountered. IMS has terminated system log data set (SLDS) read activity and released its dataspace storage.

System action

The internal IMS functions that require SLDS data fail. One or more of the following functions can fail:
  • Dynamic backout
  • Batch message processing (BMP) extended restart (XRST)
  • Unit of work table entry (UOWE) resynchronization
Other IMS processing continues.

Operator response

Storage shortages are often the result of more than one internal work unit needing SLDS data simultaneously. BMPs using XRST are especially vulnerable if the records needed are widely separated on the log. Trying the failed functions again serially often resolves the problem.

For UOWE resynchronization, repeated attempts to retry the function can result in incremental improvements until success is achieved.

If the auxiliary storage shortage involved competition with other jobs or z/OS components and the failed function was dynamic backout, try restart the affected databases when more storage becomes available. If not, batch backout is required.