A customer built a master-slave disaster recovery system using Huawei hybrid flash storage. The production center and off-site disaster recovery center use asynchronous remote technology. The…

A customer built a master-slave disaster recovery system using Huawei hybrid flash storage. The production center and off-site disaster recovery center use asynchronous remote technology. The business data, logs and other data in the customer's database application are stored in different LUNs. All remote pairs of LUNs are added to the same consistency group. When the consistency group is synchronized, split, or switched from master to slave, the remote pairs of all LUNs in the group are also synchronized, split, or switched from master to slave at the same time.