Regarding the description of the hard disk domain in Huawei RAID 2.0+ technology, which of the following statement is incorrect?

When deploying random small IO-based database services on storage, which RAID type should be appropriate? for what?

Which of the following options are not the constituent elements of the SAN architecture?

A hospital needs to archive a large number of patient cases and examination results generated every day, but storage resources are limited. Under the premise of not occupying transmission bandwidth, which deduplication method is the best to choose?

If the disaster recovery center in the same city fails, the production center in cascading networking mode will lose all its backup sites.