Taking data center A as the priority site and data center B as the non-priority site as an example, when the quorum server is not configured or the quorum server cannot be accessed, the HyperMetro arbitration mode is static priority mode, and when the HyperMetro Pair arbitration occurs ______ site side to obtain arbitration and provide business.

During the homogeneous migration process, after the host multipath completes the link aggregation of the original LUN and eDevlun, the migration task can be created and the migration can be started.

An enterprise has an online transaction system and an email system in a 30 TB storage resource pool. The backup system created 3 Thin LUNs of 10TB. Since the company is just starting out, there is very little data on the online transaction system and mail system. However, the amount of old data that needs to be imported into the backup system is about 20 TB, which exceeds the size of the Thin LUN, resulting in a write failure.

In the Huawei data migration service process, the ( ) link needs to analyze user business risks, disaster recovery, and operation and maintenance security.

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.