What steps are involved in migrating data from a legacy 7-Mode volume to Clustered ONTAP?

What steps are involved in migrating data from a legacy 7-Mode volume to Clustered ONTAP?

• A. Immediately copy data with FTP and switch over without validation.
• B. Plan the migration, set up source and target SVMs/volumes, use SnapMirror or NDMP as applicable, and perform cutover with validation and minimal downtime.
• C. Migrate without planning and without validation.
• D. Use only NDMP; SnapMirror is not supported.

Answer: (B)

Migrating from 7-Mode to Clustered ONTAP requires a coordinated plan that aligns the old and new architectures and uses proper replication with a controlled cutover. The migration begins by planning the move and creating corresponding source and destination environments in Clustered ONTAP—setting up the appropriate source and target SVMs and volumes so there is a clear mapping between the legacy data and the new cluster structure. You then use a supported replication method, such as SnapMirror, or NDMP where applicable, to copy data to the destination and keep it synchronized during the transition. This staged replication lets you validate data integrity and consistency without taking the system offline for a long period. When replication is caught up and validation checks pass—ensuring file counts, metadata, permissions, and data integrity match—you perform the cutover with minimal downtime. After the switch, you verify accessibility of the data on the new cluster and complete any cleanup or decommissioning of the legacy resources. Using immediately copied data with FTP and switching over without validation misses essential safeguards, risking data loss and service disruption. Migrating without planning and validation is unreliable and risky. Limiting the path to NDMP only omits a commonly supported and practical migration method (SnapMirror), which is not correct for a complete migration story.

Migrating from 7-Mode to Clustered ONTAP requires a coordinated plan that aligns the old and new architectures and uses proper replication with a controlled cutover. The migration begins by planning the move and creating corresponding source and destination environments in Clustered ONTAP—setting up the appropriate source and target SVMs and volumes so there is a clear mapping between the legacy data and the new cluster structure. You then use a supported replication method, such as SnapMirror, or NDMP where applicable, to copy data to the destination and keep it synchronized during the transition. This staged replication lets you validate data integrity and consistency without taking the system offline for a long period. When replication is caught up and validation checks pass—ensuring file counts, metadata, permissions, and data integrity match—you perform the cutover with minimal downtime. After the switch, you verify accessibility of the data on the new cluster and complete any cleanup or decommissioning of the legacy resources.

Using immediately copied data with FTP and switching over without validation misses essential safeguards, risking data loss and service disruption. Migrating without planning and validation is unreliable and risky. Limiting the path to NDMP only omits a commonly supported and practical migration method (SnapMirror), which is not correct for a complete migration story.