NetWorker: NMDA Sybase Backup Fails Due to Insufficient ASE User Connections

Summary: NetWorker Module for Databases and Applications (NMDA) fails to complete Sybase backups when SAP ASE lacks sufficient user connections to initiate required processes.

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Symptoms

NMDA Sybase backup fails with the following errors:

  • From the nsrdasv log:
Unable to create the syb worker pool.
run_sybase_child: Exiting with error: The child nsrdasv exited with a non-zero return code: 139
  • From the SAP ASE log:
There are not enough 'user connections' available to start a new process. Retry when there are fewer active users, or ask your System Administrator to reconfigure ASE with more user connections.
Error: 1601, Severity: 17, State: 3

Cause

The failure occurs because SAP ASE has insufficient available user connections. This prevents NMDA from creating the Sybase worker pool required for backup execution.

Resolution

Engage the SAP ASE Database Administrator to:

  1. Increase the user connections configuration in ASE to ensure adequate resources for backup operations.
  2. Monitor connection usage during backup windows to proactively identify and resolve resource constraints.
Article Properties
Article Number: 000372536
Article Type: Solution
Last Modified: 05 Dec 2025
Version:  2
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