SAP Knowledge Base Article - Preview

2876046 - Device has physically been deleted from a running server - SAP ASE


  • A database device has been deleted at OS level from a running server for an active database
  • ASE still recognizes the device and can write to it
  • When taking a backup, the backup fails with Backup Server error:

 Backup Server: Volume validation error: attempt to open /dev/sybase/data_device_123.dat returned No such file or directory.

  • ASE errorlog may report error 840:

Msg 840 Device 'data_device_123' (with physical name '<file path and name>', and virtual device number <device number>)
has not been correctly activated at startup time. Please contact a user with System Administrator (SA) role.



  • SAP Adaptive Server Enterprise (ASE)
  • Unix OS


SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0


"deleted device" , "removed file" , "deleted file" , "ASE device" , "Data device deleted accidentally" , "Data device deleted" , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , How To

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