A customer has a combination of fifteen Windows file servers with direct attached storage and three Power Systems with AIX database servers SAN attached to a DS4700. They would like to upgrade and plan for 40 TB capacity. The customer needs to move to a more scalable storage system to include all servers. Which of the following would be most appropriate to ask first？（）

• A、What are Disaster Recoveryplans
• B、What are plans for datamigration
• C、What storage system space isavailable
• D、DoesiSCSI meet the needs