A user migrates data through the Object Storage Migration Service (OMS) of HUAWEI CLOUD. When the number of concurrent migration tasks approaches the upper limit of migration, and there are new migration tasks that need to be executed as soon as possible, which of the following operations are not recommended? (Multiple Choice)

Bank A uses Huawei all-flash storage to carry its key business. Which of the following can guarantee data reliability? (Multiple Choice)

In the active-active solution, it is supported to deploy two arbiter servers at the arbiter site to form an active-standby relationship (cold standby). If all the links between the primary arbiter server and the arrays at both ends are disconnected, and the connection between the secondary arbiter server and the arrays at both ends is normal, and the links between the active-active sites are also normal, which of the following statements is correct?

The multi-tenancy feature mainly solves the isolation problem between tenants, including management isolation, business isolation, and network isolation.

The online upgrade method is a highly reliable and highly available upgrade method carried out under the condition that the business is not interrupted, and is used for the occasion where the business cannot be interrupted by the upgrade. Since online upgrades are performed in batches, the impact on business performance is small.