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5. Make a backup of all your configurations with System Export. This can be done either in Desktop, which is described in System Exporter or by using the mzsh systemexport command:

   Code Block
   $ mzsh mzadmin/<password> systemexport <backup directory>/<filename>

   Info
   title Use of System Export File
   The exported configurations might be needed in order to be able to perform a downgrade.

6. Make an online backup of the database(s). For further information regarding how to perform an online backup, see Preventive Maintenance Procedures.
   Note! If you are upgrading from 8.3.x, you can find the database backup instructions in the documentation for 8.3 as the procedure may differ from that of 9.x.

7. If you are upgrading from 8.x, it is important to make a backup of MZ_HOME for rollback purposes.

   To make a backup of your MZ_HOME, you can use the following command:

   Note
   title Note!
   Ensure that you have shutdown your platform and all executions prior to the backup.

   Code Block
   $ cd $MZ_HOME/../ $ tar -zcvf mzhome_backup.tgz <MZ_HOME directory> $ mv mzhome_backup.tgz <backup directory>

   Info
   title Use of MZ_HOME backup
   The MZ_HOME backup might be needed in order to be able to perform a rollback in case upgrade failure.

8. If you are performing an upgrade of a system with large configurations, you may need to increase the maximum number of file descriptors.

   Info
   title Example - Changing the maximum number of file descriptors on Linux
   Code Block language text theme Eclipse $ cat /proc/sys/fs/file-max 5000 $ su - root Password: $sysctl -w fs.file-max=100000

9. Create a directory to use when unpacking this release and future releases. For the purpose of these instructions, this designated directory is referred to as the staging directory.

   Note
   title Note!
   The staging directory should not be the same directory as the one you created and set up as the MZ_HOME directory.

10. Place the *.tgz file from your release delivery into the staging directory.
    

11. Use a command line tool, go to the staging directory, and unpack the *.tgz file by running the following command:

    Code Block
    $ tar xvzf <filename>.tgz

    A directory is then created in the staging directory, containing the software to be installed. For the purpose of these instructions, this directory is referred to as the release content directory.
    

12. Now copy the MZ license file into the release content directory.

    Code Block
    $ cp mz.license <release content directory>

13. Enter the release content directory and prepare the install.xml file by running the following command:

    Code Block
    $ cd <release content directory> $ ./setup.sh prepare

    The *.mzp packages have now been extracted, and the install.xml has been extracted into the release content directory. The install.xml file will automatically be populated with information from your existing installation (if the database is SAP HANA):

14. install.admin.password 

15. mz.jdbc.user

16. mz.jdbc.password

17. mz.jdbc.url

18. install.db.jdbc.user

install.db.jdbc

.

password

install.sap.ssl.encrypt - If value is set to true then the following parameters must be manually set

19. install.sap.ssl.truststore

20. install.sap.ssl.truststorepassword

install.sap.ssl.hostnameincertificate

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