Regarding the description of the data protection function of the Huawei Oceanstor 9000 system, which...

Oceanstor 9000 realizes data recovery through ErasureCode

N+M redundant storage

Oceanstor 9000 realizes redundant storage of metadata through mirroring

After enabling physical domain partitioning, the hard disk or node in a single domain fails,

Will lead to degradation or failure of data reliability in other domains

When the protection level is N+1, the minimum number of nodes required by the cluster is 3