Compared with the traditional RAID algorithm, the erasure code redundancy technology adopted by Huawei Ocean9000 has higher reliability and more flexible redundancy strategy. In the erasure code storage mode, the storage system can withstand concurrent failures of N disks at most.

An engineer needs to perform a snapshot rollback operation to obtain the source data at a certain point in the past. Which of the following statements is correct about this operation process?
(Multiple Choice)

Which of the following descriptions will not cause value-added service failures?

Huawei Standard Edition N8500 has two nodes the business mount Pubeth1 and Pubeth4. It opened the NFS service. NFS server except recovery after NFS guest.
Client mount point can not be accessed into the directory for a long time without echo. What do you need to do to fix it?

The heterogeneous virtualization feature is used for data migration. To ensure data security, the eDevLUN defaults to a write-through policy.