NetWorker: How to Enable Core Dump and Crash Dump Capture

Summary: This article explains how to enable core dump (Linux and UNIX) and crash dump (Windows) capture on Linux, UNIX, and Windows systems.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Instructions

When a NetWorker process is faulting, a core dump or crash dump must be collected by enabling core dump and crash dump capture on the system where the faults are occurring.


Linux and UNIX systems

  1. Check current ulimit settings for core dump capture:
ulimit -c

If this is set to 0, core dumps are not captured.
  1. Increase the setting using when capturing core dumps for NetWorker or NetWorker modules:
ulimit -c unlimited


Check your OS documentation to confirm how to keep this setting permanently. 
NetWorker core dumps on these systems are located in the /nsr/cores directory.


Microsoft Windows:

NetWorker core dumps are produced under the NetWorker installation path's cores folder (default: C:\Program Files\EMC NetWorker\nsr\cores)
Additional core dump settings can be configured in the system registries.
 

CAUTION: Adding and amending Windows registry settings can cause problems with the OS if not completed correctly. The system administrator must perform changes to the system registries.

 

  1. Create or confirm the registry key:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Windows Error Reporting\LocalDumps
  1. Update or create the following values to generate crash dumps:
    • DumpFolder (REG_EXPAND_SZ): The path to the folder where the dump files are located
    • DumpCount (DWORD): The maximum number of dumped files in the folder
    • DumpType (DWORD): 0 - Custom dump, 1 - Mini dump, and 2 - Full dump
Set DumpCount to 10 as this should not cause space issues when the crash dumps are created.
Set DumpType to 2 to collect full crash dumps for NetWorker or NetWorker module binaries.
  1. Reboot the system. 

Crash dumps are located in the path specified in the DumpFolder registry key.

Additional Information

NetWorker Troubleshooting Guide: Process Crashes and Core Dumps

Affected Products

NetWorker

Products

NetWorker Family
Article Properties
Article Number: 000022391
Article Type: How To
Last Modified: 13 Mar 2026
Version:  8
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