What is a significant downside to traditional data migration?

Data non-retrievability is a significant downside to traditional data migration because it highlights the potential risk of losing access to data during the migration process. This can occur when data is transferred without proper validation, leading to situations where some data is not migrated correctly or is lost altogether. This aspect emphasizes the need for thorough planning, backup strategies, and data validation to ensure that all information is accurately migrated without any loss of integrity. Unlike automated processes or well-managed migrations that ensure minimal disruption, traditional methods might not have safeguards in place, increasing the likelihood of encountering issues that lead to data becoming unretrievable.