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

The high-end OceanStor Dorado 18000 series is designed with the SmartMatrix 4.0 full-mesh architecture, which provides the industry ' s highest level of controller redundancy. In a standard configuration with 8 controllers (housed in two enclosures), the system can tolerate extreme failure scenarios without service interruption:

Individual Failures (Option A, C): The system easily handles the failure of one or two controllers as the remaining controllers take over the workload transparently.

Extreme Controller Failure (Option B): Due to the full-mesh interconnect where all controllers share a global memory cache and can access all backend disks, the system can tolerate the failure of up to seven out of eight controllers . As long as one controller remains active, services continue.

Enclosure Failure (Option D): Because the architecture is mirrored across controller enclosures, the entire failure of one controller enclosure (containing 4 controllers) is tolerated.

This level of resilience ensures that mission-critical applications remain online even in the face of catastrophic hardware events, maintaining 99.9999% availability.

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.

DAS directly connects storage devices to servers without using a shared storage network. Therefore, DAS commonly uses direct-attached interface technologies such as SAS, Fibre Channel, and InfiniBand, depending on the server and storage hardware design. SAS is widely used for direct disk or enclosure attachment. Fibre Channel can also be used in direct-attached configurations where a server connects directly to storage ports without an FC switching fabric. InfiniBand is a high-speed interconnect that can be used in specialized direct storage environments requiring high bandwidth and low latency. iSCSI is not normally classified as a DAS interface because it encapsulates SCSI commands over TCP/IP and is used for IP SAN connectivity through Ethernet networks. Therefore, the supported DAS interface protocols are SAS, Fibre Channel, and InfiniBand.