The backup application requires a minimum tape capacity of 800 GB. The minimum tape type to support this requirement is LTO-4, which has a native capacity of 800 GB. LTO-3 has a capacity of 400 GB, and LTO-2 has a capacity of 200 GB, both of which do not meet the requirement. LTO-5 exceeds the requirement with 1.5 TB of capacity, but since the question asks for the minimum tape type, LTO-4 is the correct answer.
The FS25 (Flash Storage) SSD shelf is specifically used for the metadata cache in a PowerProtect DD system, and it is supported on the DD6900 in a high availability (HA) configuration. Therefore, the required expansion shelf for the DD6900 to use HA is FS25.
When using the DD VTL Tape Out to Cloud feature, a tape that is transferred to the cloud tier vault will show the status as 'Offsite.' This indicates that the tape data is securely stored off-premises in the cloud.