The Following Is the Erroneous Description of Info Stamper in OceanStor

The following is the erroneous description of info stamper in OceanStor 9000 storage system:

A) Oceanstor 9000 uses COW technology for metadata
B) Oceanstor 9000 uses ROW technology for data
C) Between snapshots of different versions, there is common data between the snapshot and the current year
D) According to the snapshot version data objects have a backward dependency, so when reading the snapshot data, according to the object dependencies, the system determines from which object to read.