OSError: [Errno 16] Device or resource busy: '/sys/kernel/config/target/core/fileio_2/tmp-test3.raw'

[arthurzenika]

/backstores/fileio> ls
o- fileio ..................................................................................................... [Storage Objects: 3]
  o- tmp-test3.raw ................................................................. [/tmp/test3.raw (50.0MiB) write-thru ACTIVATED]
  o- tmp-youpi.raw .................................................................. [/tmp/youpi.raw (1.0GiB) write-thru ACTIVATED]
  o- youpi ........................................................................ [/tmp/youpi.raw (1.0GiB) write-back DEACTIVATED]
/backstores/fileio> delete tmp-test3.raw 
Traceback (most recent call last):
  File "/usr/bin/targetcli", line 100, in <module>
    main()
  File "/usr/bin/targetcli", line 90, in main
    shell.run_interactive()
  File "/usr/lib/python3/dist-packages/configshell/shell.py", line 948, in run_interactive
    self._cli_loop()
  File "/usr/lib/python3/dist-packages/configshell/shell.py", line 777, in _cli_loop
    self.run_cmdline(cmdline)
  File "/usr/lib/python3/dist-packages/configshell/shell.py", line 891, in run_cmdline
    self._execute_command(path, command, pparams, kparams)
  File "/usr/lib/python3/dist-packages/configshell/shell.py", line 866, in _execute_command
    result = target.execute_command(command, pparams, kparams)
  File "/usr/lib/python3/dist-packages/configshell/node.py", line 1413, in execute_command
    return method(*pparams, **kparams)
  File "/usr/lib/python3/dist-packages/targetcli/ui_backstore.py", line 150, in ui_command_delete
    child.rtsnode.delete()
  File "/usr/lib/python3/dist-packages/rtslib/tcm.py", line 235, in delete
    super(StorageObject, self).delete()
  File "/usr/lib/python3/dist-packages/rtslib/node.py", line 199, in delete
    os.rmdir(self.path)
OSError: [Errno 16] Device or resource busy: '/sys/kernel/config/target/core/fileio_2/tmp-test3.raw'

Maybe this operation should generate an error instead of a traceback?

[arthurzenika]

On an targetcli (not fb) install I seem to be able to delete an activated backend (it is removed from the iscsi lun that was using it).

[agrover]

thanks for catching this.