Dynamic Runtime Attributes

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This parameter determines whether dynamic runtime attributes are attempted on open for supported drives. Default is 1 (On) meaning that the driver automatically attempts to set dynamic runtime attributes on open. This action can be changed to 0 (Off) in the configuration file before the IBMtape is loaded. It is recommended to keep dynamic runtime attributes On unless it produces an unexpected problem in the environment.

The dynamic runtime attributes setting is retained even if the system is rebooted. Follow the steps to enable or disable the Dynamic Runtime Attributes parameter.
  1. To enable the support on all currently configured devices, add the entry Dynamic_Runtime_Attribute =1 at the beginning of the IBMtape.conf file.
  2. Stop the TMD (tape monitor daemon) running on the system and unload the IBMtape driver module from the current kernel.
    # /opt/IBMtape/tmd -s
# /usr/sbin/rem_drv IBMtape
  3. Reload the IBMtape driver module in the kernel and start the daemon.
    # /usr/sbin/add_drv -m ’ 0666 bin bin’ IBMtape
# /opt/IBMtape/tmd
  1. To disable the support on all currently configured devices, add the entry Dynamic_Runtime_Attribute = 0 at the beginning of the IBMtape.conf file.
  2. Stop the TMD (tape monitor daemon) running on the system and unload the IBMtape driver module from the current kernel.
    # /opt/IBMtape/tmd -s
# /usr/sbin/rem_drv IBMtape
  3. Reload the IBMtape driver module in the kernel and start the daemon.
    # /usr/sbin/add_drv -m ’ 0666 bin bin’ IBMtape
# /opt/IBMtape/tmd