[Feature]: Dose milvus-backup create full independent copies for each backup? Storage growth concern

[vcjxv]

Is your feature request related to a problem? Please describe.

When crossStorage: true, dose each backup still create a full independent copy of the data
if i have a 100GB collection and keep 30 daily backups with crossStorage: true, will the storage usage grow to approximately 30 * 100GB = 3TB?

Describe the solution you'd like.

No response

Describe an alternate solution.

No response

Anything else? (Additional Context)

No response

[vcjxv]

如果使用Milvus-CDC进行主从备份， 目标milvus集群所需要的内存要和源集群的一样多吗， 目标集群的collection会自动load吗， 如果不load是不是占用的内存要比源集群小的很多