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Perform a manual backup of your SQL database prior to upgrade
Ensure the account used in the SQL database for managing the Zerto database is able to connect from the Win ZVM and has permissions to run a backup
The Upgrade seems to create a duplicate of the existing database as part of the migration, ensure you have enough space
Take a snapshot of ZVMA (Linux appliance) prior to the migration. Should the migration fail, the migration tool will require a fresh install of the appliance which can be avoided with a snap revert
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