DIGITAL


          Before You Install DEC Data Distributor Version 6.0

          AV-JD85L-TE

          This Before You Install Letter contains information about in-
          stalling both DEC Data Distributor for OpenVMS AXP and DEC Data
          Distributor for OpenVMS VAX, and uses the full name of the prod-
          uct for information that is specific to one platform. This let-
          ter uses the name Data Distributor to refer to information that
          applies to both DEC Data Distributor for OpenVMS AXP and DEC
          Data Distributor for OpenVMS VAX. The term VAXcluster refers to
          a cluster of VAX systems. The term VMScluster refers to a clus-
          ter of AXP systems or a dual-architecture that includes both VAX
          and AXP systems.

          The package accompanying this letter contains the Data Distribu-
          tor software, installation instructions, and user documentation.

          Read the DEC Data Distributor Installation Guide in its entirety
          before installing Data Distributor. Pay special attention to the
          following:

          o  You must install OpenVMS for VAX Version 5.4 or higher on VAX
             systems and OpenVMS for AXP Version 1.5 on AXP systems.

          o  You must install DEC Rdb Version 6.0 on your system, VMSclus-
             ter, or VAXcluster before you can install Data Distributor.

          o  DEC Rdb Version 6.0 supports the simultaneous running of
             Rdb/VMS Version 4.0, Version 4.1, and Version 4.2, as well
             as, DEC Rdb Version 5.0, 5.1, and 6.0 on the same node or
             cluster. You can continue to run a prior version of Data Dis-
             tributor with the compatible version of Rdb/VMS or DEC Rdb,
             such as Data Distributor Version 2.4 with Rdb/VMS Version
             4.2. Or, you can install Data Distributor Version 6.0 and run
             it with DEC Rdb Version 6.0. If you install Data Distributor
             Version 6.0, you supersede any prior version of Data Distrib-
             utor. You cannot run multiple versions of Data Distributor on
             the same cluster.

          o  If you are running multiple versions of DEC Rdb (or Rdb/VMS,
             or both) on your cluster and Version 6.0 is a multiversion
             variant, you must set your system default to the DEC Rdb
             Version 6.0 environment before running Data Distributor
             Version 6.0. To set the system default to DEC Rdb Version
             6.0, enter the following command:

                $ @SYS$LIBRARY:RDBVMS_SETVER 6.0 /SYSTEM

          o  You can run the IVP as part of the Data Distributor installa-
             tion. Because the IVP indirectly invokes the RMU utility when
             you run Data Distributor in a multiversion environment of
             DEC Rdb, you must execute the following statement before you
             run Data Distributor or before you run the IVP independently:

                $ @SYS$LIBRARY:RDBVMS_SETVER RESET

 






          o  You must register the Data Distributor license through the
             VMS License Management Facility (LMF) in accordance with the
             license agreement signed by your site. The license registra-
             tion information you need is contained in the Product Autho-
             rization Key (PAK) that is shipped with Data Distributor. The
             PAK is a paper certificate that contains information about
             the license you need to run a particular piece of software.
             The DEC Data Distributor Installation Guide contains infor-
             mation about registering and loading your Data Distributor
             license.






















              ©Digital Equipment Corporation. 1994. All rights reserved.






















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          o  After you install Data Distributor there are a number of
             steps you must perform before Data Distributor can be con-
             sidered operational. If this is the first time you are using
             Data Distributor, you must modify your system startup and
             shutdown procedures to automatically start up and shut down
             Data Distributor. If you are converting to Data Distribu-
             tor Version 6.0 from a version lower than Version 2.3, you
             must change the format of your transfer database to con-
             form to the format of the current version. Conversion of a
             transfer database is only performed if it is from Data Dis-
             tributor Version 2.1 or higher. If you are using a version
             of Data Distributor prior to Version 2.1, you must delete
             the transfer database and recreate it after Version 6.0 is
             installed.

             These and other postinstallation procedures are explained in
             the Version 6.0 DEC Data Distributor Installation Guide.

          o  Data Distributor can work within a DECnet for VMS or DEC-
             net/OSI for VMS software environment. If you use DECnet/OSI
             for VMS, Data Distributor expects node names to be one to
             six characters long. If you have longer node names, you
             must define and use synonyms for those names so that the
             six-character limit is observed. Node name synonyms can be
             registered either in a local or a distributed name service
             database. For details on establishing node name synonyms,
             refer to the documents for DECnet/OSI for VMS.

          o  Data Distributor provides release notes online. During in-
             stallation, you have the option of displaying and/or printing
             the release notes. After installation, the release notes will
             be located in the following ASCII file:

                SYS$HELP:DDAL060.RELEASE_NOTES





















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