Chapter 10. Upgrading DMF
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## Chapter 10. Upgrading DMF

Upgrading the DMF software is essentially the same procedure as the one described in Chapter 5, “Installing DMF on IRIX Systems” for IRIX systems or in Chapter 6, “Installing DMF on Linux Systems” for Linux systems.

You need to be aware of the following differences from an initial installation:

- Before installing a DMF upgrade, you must stop DMF. To do so, enter the following command:

      /etc/init.d/dmf stop

- When you start to edit the configuration file for the upgrade version of DMF, you are prompted as to whether you want to use the existing configuration file or one of several sample files.

## Support Issues

Before upgrading to a new release, please read the following information and be sure that your site is able to accommodate the process. Failure to do so can cause major problems when the DMF is initialized.

DMF supports both OpenVault and the Tape Management Facility (TMF). You must acquire these facilities before you can upgrade. Support for the tape MSP Autoloader API has been dropped.

TMF is available to all DMF licensed customers for no charge. If you want TMF, order product SC4-TMF-XL. This will grant TMF, free of charge, to any existing DMF-licensed customers.

DMF is licensed for several different architectures based on the number of CPUs, and DMF does enforce a node locked license. However, it does not enforce licenses based upon the size of the machine.

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