An administrator is migrating their old cloud tier-enabled Data Domain to a new PowerProtect DD appliance with cloud tier. During migration, the…

When a source system is in restricted mode, certain maintenance tasks, like file system cleaning, are

unavailable. This restriction is typically applied during migrations to prevent data inconsistencies,

ensuring a smooth transfer of data to the new system.

During the migration process from an older Data Domain system with cloud tier capabilities to a new

PowerProtect DD appliance, the source system operates in a "restricted mode." This restricted mode

limits specific functionalities, including file system cleaning. File system cleaning is a maintenance

operation that reclaims storage by deduplication and cleaning up obsolete data. However, to prevent

data inconsistency or interference during migration, this functionality is temporarily disabled on the

source system, thus ensuring data integrity until the migration process is completed.

The restricted mode ensures that all critical operations remain stable and predictable on the source

system, which is essential for a smooth migration to the new environment.