You must enter a value before you switch to "remote piping" ( backup_dev_type = pipe|pipe_auto ).

This parameter specification is only useful in combination with the parameter read_fifo_cmd for reading from remote systems.

SAP recommends entering the command

copy_in_cmd = "dd bs=5k conv=block if=$" ,

to enable volume reading with the dd command. By using parameter conv=block , you can also import the backup locally, provided you remain with the default blocking of 5KB. You can also use higher blocking to improve performance, however, conv=block does not work as described above. The $ character is replaced by the device address. Do not forget to enclose the parameter specifications composed of several values in double quotes.