Waiting Transfers and Transfer Queue Error after running backup while XCOM is active

Products

• XCOM Data Transport
• XCOM Data Transport - Windows
• XCOM Data Transport - Linux PC
• XCOM Data Transport - z/OS

Issue/Introduction

This problem happens when a backup program has a lock on the XCOM log at the same time as XCOM is trying to use the log.

Environment

• XCOM™ Data Transport® for AS/400 i5/OS
• IBM i

Cause

XCOM is programmed to wait for the log to become available. Unfortunately, when the log that is being backed up is very large, the time that XCOM waits expires before the log becomes available.

Resolution

In this case, there are two options to resolve the problem:

1. Reduce the size of the log.
2. Increase the amount of time that XCOM will wait for the log to become available.
   
   The parameter that controls the amount of time a process will wait for the resource it needs is ' Default Wait Time in Seconds '. This parameter is associated with the CLASS that the process - Subsystem runs.

   To determine the class and raise the timeout:

3. DSPSBSD XCOM2SBS
   -> Routing Entries
   -> Details (pick one)
   CLASS = QBATCH
   WRKCLS
   Enter the CLASS - QBATCH, and the LIBRARY - *LIBL
   Select 5 Details - next to the associated entry
   Raise the Default Wait Time In Seconds - 120 is the default

Note: This problem can still occur if the XCOMLOG grows too large or the wait time is not sufficient.