Which of the following processes must be included in the standard hyper-converged architecture delivery solution? (Multiple choice)

Which of the following processes must be included in the standard hyper-converged architecture delivery solution? (Multiple choice)
A . Distributed storage system writes data: According to the LBA of the application layer and the block size, multiple keys are generated in units of 1MB, and the keys are hashed into a patation ID, and then the main OSD is found according to the partition ID, and the main OSD notifies the backup corresponding to the partition OSD write data.
B . Planning and design
C . Project watchdog
D . Installation and commissioning
E . Project acceptance

Answer: BDE