Product SiteDocumentation Site

5.6. Kernel Dump

Red Hat Enterprise Virtualization Hypervisor hosts generate a kernel dump (a kdump file) in the event of a system failure. These kdump files are essential for debugging and support.
The Hypervisor supports the export of kernel dumps by kdump using NFS or SSH so that they may be analyzed at a later date. Alternatively the hypervisor is able to store the kernel dumps locally. The Kernel Dump screen provides for configuration of this facility.
  1. Kernel Dump Configuration

    Crash dumps generated by kdump are exported over NFS or SSH. Select the desired transfer method and press Space to enable it. Alternatively, to keep the kernel dumps on the hypevisor's local storage, select Restore (local) and press Space to enable it. This action also disables any previously configured kernel dump export options.
    Where export of the kernel dumps over NFS or SSH is chosen a location to which the kdump files will be exported to must also be specified.
    1. NFS location

      Set the NFS location to which crash logs should be exported in the NFS Location field. The NFS Location should be the full NFS path which includes fully qualified domain name and directory path.
      Example 5.2. NFS Location
      example.redhat.com:/var/crash

    2. SSH location

      Set the SSH location to which crash logs should be exported in the SSH Location field. The SSH Location should be the full SSH login which includes the fully qualified domain name and username.
      Example 5.3. SSH Location
      root@example.redhat.com

  2. Save Configuration

    To save the configuration the user must select <Apply> and press Enter.
  3. Result:
    The Kernel Dump configuration has been updated and kernel dumps will be exported to the remote server(s) specified.