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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.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:
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