Huawei H19-308_V4.0 Exam With Confidence Using Practice Dumps

According to Huawei’s BCManager and HyperReplication guides, " incorrect " statements must be identified to understand the distinction between disaster recovery (DR) and active-active solutions. Option B is incorrect because while HyperMetro supports automatic transparent failover (zero RTO) using a Quorum Server, standard synchronous remote replication typically requires manual intervention or third-party management software to trigger a switchover when the primary site fails. In synchronous replication, the secondary LUN is usually in a read-only state and cannot take over automatically without administrative action.

Option D is incorrect because it describes an " Active-Active " state. In a standard Remote Replication pair, only the primary LUN is accessible for host I/O (Read/Write), while the secondary LUN is locked to maintain data consistency. Only the HyperMetro feature allows both LUNs in the pair to provide simultaneous read and write services to application servers across different sites. Regarding distance, while asynchronous replication is physically less constrained, synchronous and HyperMetro technologies are strictly limited by latency (typically requiring round-trip time < 10ms and distance within 100km to 300km depending on the specific product line) to avoid severe application performance degradation.

According to the Huawei OceanStor Pacific series data sheet and reliability manuals, the system utilizes Elastic Erasure Coding (EC) for data redundancy protection. This technology is more efficient than traditional RAID and allows for higher levels of tolerance in a distributed environment.

Specifically, a single OceanStor Pacific storage system can be configured to tolerate the simultaneous failure of up to four nodes (or four cabinets in a multi-cabinet deployment) without data loss or service interruption. When a node fails, the system automatically triggers a background reconstruction process to restore redundancy using the remaining healthy nodes. The flexibility of dynamic EC ratios (N+M) allows the system to adjust to these faults while maintaining optimal space utilization and reliability.

The new-gen Huawei OceanStor hybrid flash storage is a unified enterprise storage platform, so it supports multiple workload and service types. Block services are used for databases, virtualization, and other applications that require LUN-based access through SAN protocols. File services are used for NAS workloads through protocols such as NFS and SMB/CIFS. VM services are supported because the platform integrates with virtualization environments and provides shared storage for virtual machines. Container services are also supported through modern container storage integration, enabling persistent storage for cloud-native applications. This broad service support is important because enterprises increasingly want one platform to support traditional applications, virtualized workloads, and containerized applications. Therefore, all listed service types are supported by the new-gen OceanStor hybrid flash storage.