Which of the following processes must be included in the standard hyper-converged architecture delivery solution? (Multiple choices)
A . Distributed storage system write data: Generate multiple keys in units of 1MB according to the LBA and block size of the application layer, hash the keys into a patation ID, and find the main OSD based on the partition ID, and the main OSD notifies the backup corresponding to the partition OSD write data
B . Planning and design
C . Project Watcher
D . Installation and commissioning
E . Project acceptance
Answer: BDE