H19-308_V4.0 Practice Questions

OceanStor Pacific is designed for large-scale distributed storage and supports several industry-leading capabilities. Flexible multi-site protection, multi-copy redundancy, and erasure coding help customers balance availability, data durability, and storage efficiency across large deployments. Native lossless multi-protocol interworking is important because the same data can be accessed through multiple protocols without unnecessary data copies or semantic loss, improving operational flexibility. Stable performance with hundreds of billions of objects per bucket reflects the platform’s distributed metadata and scale-out design, which is critical for massive object storage environments. Delivering both high bandwidth and high IOPS on one device is also a major advantage because it allows OceanStor Pacific to support mixed workloads such as video, AI, big data, file, and object services. Therefore, all options are correct.

OceanStor Pacific is Huawei’s distributed scale-out storage platform and supports multiple storage service types for different enterprise workloads. It provides file services for NAS scenarios through protocols such as NFS and SMB/CIFS. It provides object services for massive unstructured data, cloud-native applications, backup, archive, and S3-compatible access. It also supports HDFS services for big data analytics workloads, allowing big data platforms to use OceanStor Pacific as a storage backend. In addition, OceanStor Pacific supports block services for distributed SAN-style scenarios where applications need block-level access. This multi-service capability is one of the main advantages of OceanStor Pacific because it allows one distributed storage platform to support file, object, big data, and block workloads without deploying separate storage silos. Therefore, all listed options are correct.

Huawei’s data protection solutions, particularly the OceanProtect and BCManager suites, support a wide range of backup targets to accommodate various Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO).

Disk (Option C): This is the most common modern backup media (Disk-to-Disk or D2D), offering fast backup and recovery speeds. Huawei ' s OceanProtect is a dedicated high-speed disk-based backup storage.

Tape Library (Option D): Traditionally used for long-term archiving (D2D2T), tape remains a cost-effective and reliable " offline " storage medium for compliance and disaster recovery.

Disc (Option A): Optical discs (like Blu-ray) are used in specific archival scenarios where " Write Once " (WORM) physical media is required for regulatory purposes.

Cloud (Option B): Modern Huawei solutions support Backup to Cloud , where data is deduplicated, compressed, and sent to an off-site object storage provider (like Huawei Cloud OBS) for cost-effective disaster recovery without the need for a physical secondary site.

The Huawei OceanStor Dorado series is engineered for 99.9999% availability using multiple layers of reliability. Option A is correct as RAID-TP (Triple Parity) is a unique Huawei feature that uses three parity chunks to tolerate the simultaneous failure of any three SSDs in a disk group. Furthermore, the SmartMatrix full-mesh architecture in high-end models allows the system to remain operational even if seven out of eight controllers in a controller enclosure fail, ensuring extreme service continuity.

Option B is correct because Huawei utilizes Global Wear Leveling to distribute writes across all SSDs to extend their lifespan, and Anti-Wear Leveling to prevent multiple SSDs from reaching their end-of-life simultaneously, which avoids multi-disk failure risks. Option C is correct as the system supports HyperMetro (Active-Active) for both block (SAN) and file (NAS) services, providing zero RTO and RPO across sites. Option D is correct because Dorado supports high-reliability disk enclosure connection technologies; in a multi-enclosure setup, the system can tolerate the failure of an entire disk enclosure without data loss by using intelligent data distribution across different enclosures.

Unlike traditional file storage which uses a hierarchical tree structure, Huawei Object Storage utilizes a flat structure where each " object " is a self-contained unit of data. According to the documentation, an object consists of four fundamental components:

Data (Option D): The actual content of the file (e.g., a photo, video, or document).

System Metadata (Option C): These are fixed attributes managed by the storage system, such as file size, creation date, last modified time, and HTTP content type.

Customized Metadata (Option B): A unique advantage of object storage is the ability to attach user-defined tags or labels to an object (e.g., " Patient_ID: 12345 " or " Department: Radiology " ). This allows for advanced data indexing and searching without opening the file itself.

Object Identifier (OID) (Option A): This is the unique key or " Address " used to retrieve the object. In a flat namespace, the OID ensures that every piece of data can be located instantly without traversing a complex directory path.