Data Migration: Manual - Error Prone - Risky - Time Consuming
- Data governance
- Regulatory requirements
- Data sensitivity and security
- Data significance
- Hot versus cold data positioning
- Data redundancy
What prevents enterprise IT organizations from successfully managing the migration of unstructured data?
- Incomplete visibility across the entire data environment at the file level
- Compressed time-frames and limited resources to move data
- Proprietary and single system focused tools
- Flawed assessment and design inputs
The Data Migration Process
- Hardware Acquisition and Provisioning
- System Assessment and Design
- Cleanup of Data Issues
- System Cut-Over
This initial stage defines the scope of the project and includes a decision to either use existing or acquire storage infrastructure, the provisioning/configuration of hardware and software, IT and non-IT resource allocation as well as logistics and timeframe.
Assessment of the source file system design and the composition of the unstructured data residing within it. The assessment provides a baseline of knowledge and guides the design and optimization of the target file system.
Post-move data cleanup involves detailed examination of the new file system and documentation of any missing, duplicate or displaced files or folders or ACL and share issues and when appropriate, an update move operation may be required to resolve any problems.
Once the last update operation is completed, a final verification is conducted to ensure that all the problems identified during the cleanup have been cleared and that the final target meets the design, access and content objectives.
The final stage is to run a final synchronization operation and bring the upgraded or new storage on-line for access by users.
Where Do Data Migration Problems Occur?
While any part of the process can be problematic for enterprise IT organizations, the pre-move Assessment and Design stages require close attention, as both can cause problems in subsequent stages. Any issues introduced during either can make or break the success of a data migration. Assessment of the source file system is a manual process and can require a number of different tools to establish insight into file system hierarchy and composition to establish data significance. Target file system design is a whiteboard exercise that requires accurate assessment data. Assessment and design also involve upfront decisions concerning the composition of the data being migrated including; determining files/folders to preserve or purge.