Interpreting the -d and -f Options Together

The argument of the -d option gives the name of the data source. You can specify the device type of the data source with flags of the -f option, as follows:

• If the command line does not specify a device type, onpload treats the data source as the pathname of a cooked file on disk. Because no device type is specified, the following onpload command treats filename as the name of a file:

  onpload -d filename -m mapname

• The -fd option in the following command causes onpload to treat /dev/rmt/rst11b as the name of a tape device:

  onpload -d /dev/rmt/rst11b -m mapname -fd

  The tape device name should be Berkeley Software Distribution (BSD) compliant.

• The -fa option in the following command causes onpload to treat tapearray3 as the name of a device array. The device array is described in the onpload database.

  onpload -d tapearray3 -m mapname -fa

• The -fp option in the following command causes onpload to treat apipename as the name of a pipe. When onpload starts executing, it causes the pipe process to start executing.

  onpload -d apipename -m mapname -fp 

The same semantics apply for an unload job. If you use the u flag of the -f option to indicate an unload job, the interpretation of the data-source name is as described previously. For example, the following command specifies that onpload should unload data to the device /dev/rmt/rst11:

onpload -d /dev/rmt/rst11 -m mapname -fdu