H13-611_V4.5 Huawei HCIA-Storage V4.5 Free Practice Exam Questions (2025 Updated)

IP SANs are not suitable for deployments that do not require high access speeds, as they are optimized for fast storage access. In this scenario, a more suitable storage solution would be a Network Attached Storage (NAS) system [1], which is designed for slower access speeds.

1. Hard Disk Drive (HDD) vs. Solid State Drive (SSD): What's the ...

https://www.ibm.com/cloud/blog/hard-disk-drive-vs-solid-state-drive

What is computer storage and how is it used?

https://www.techtarget.com/searchstorage/definition/storage

Hard disk drive - Wikipedia

https://en.wikipedia.org/wiki/Hard_disk_drive

The correct answers are A. Inline compression before data is written to disks and C. Post-process compression, where data is first written to disks and then read and compressed when the system is idle. Huawei storage systems support both inline compression before data is written to disks and post-process compression, where data is first written to disks and then read and compressed when the system is idle. Inline compression after data is written to disks is not supported.

With the increase of service volume and diversity, problems such as difficulty in expanding the capacity of the DAS architecture, data and materials being scattered on different devices and hard to be managed in a centralized manner, and hard to be searched for may occur. Adding more servers to share the DAS storage is not an issue.

Quality of Service (QoS) is a set of technologies used to ensure that network traffic is allocated resources according to predetermined priorities. The three main working principles of QoS are I/O Priority Scheduling, I/O Performance Assurance, and I/O Flow Control. I/O Latency Burst is not one of the working principles of QoS.

A single-platter or multi-platter disk allows only one head to read and write data at a time. This means that the disk must be repositioned to read or write data to different locations, which can significantly impact the performance of the disk.

The main functions of the business continuity solution are to minimize the impact on the business service, ensure zero data loss and zero service interruption, and improve the utilization rate of the disaster recovery equipment. Predicting the disaster occurrence accurately is not a function of the business continuity solution.

In a Direct Attached Storage (DAS) system, the storage and host are connected in a one-to-one relationship. This means that there is a single host and a single storage device, which are both connected directly to each other. This type of storage system is often used when a single host needs access to a large amount of storage, such as in a server or large workstation.

When choosing between different types of SSDs, the main factor to consider is the trade-off between cost and reliability. SLC (Single-Level Cell) SSDs are the most reliable and have the longest lifespan, but they are also the most expensive. TLC (Triple-Level Cell) SSDs are less reliable than SLC SSDs, but they are also less expensive. MLC (Multi-Level Cell) SSDs are a good balance between cost and reliability, they are more affordable than SLC SSDs and more reliable than TLC SSDs.

A disk domain is a collection of physical disks of the same type and speed. If a disk domain has multiple disk types, it is not necessary that the storage pools within that disk domain have multiple disk types as well. Storage pools are a collection of physical disks within a disk domain that are grouped together to provide storage capacity. The storage pools can be created with different RAID levels and disk types, so it is possible to have a disk domain with multiple disk types and still have storage pools with only one disk type. It depends on how the administrator wants to configure the storage pool and how the storage is used.

Fibre Channel is a dedicated protocol used in enterprise-level SAN networks for communication between hosts and storage devices or between storage devices. It features high transmission efficiency, long transmission distance, and high security and reliability.

OceanStor Data Storage - Huawei Enterprise

https://e.huawei.com/en/products/storage

Dell VxRail Network Planning Guide - Physical and Logical Network ...

https://www.delltechnologies.com/asset/en-ae/products/converged-infrastructure/technical-support/h15300-vxrail-network-guide.pdf

If there are writes to the source LUN during a snapshot rollback, the rollback is performed before the writes are complete. This means that any data written to the source LUN during the snapshot rollback will be lost, since it will be overwritten by the snapshot data.

A snapshot is a point-in-time copy of the source data that serves as a data backup accessible to hosts. Snapshots are commonly used to recover data in case of accidental deletion or corruption, or to allow multiple users to access the same data without interference with each other.

The evolution is SCSI-1 > SCSI-2 > SCSI-3. SCSI stands for "Small Computer System Interface", and it is a protocol system that supports communication between different devices. The latest protocol is SCSI-3, which provides a transmission speed of up to 1 GB/s. The evolution of SCSI is SCSI-1 > SCSI-2 > SCSI-4 > SCSI-3.

Resolution: NFS is a network file system. With the continuous development of the network, this protocol version has gradually increased. There is already

The latest version of 4.1.

Storage virtualization does not enable servers to directly access storage hardware. Instead, it creates a virtual layer between the physical storage devices and the servers, allowing the servers to access the storage devices through a single interface. This virtual layer also allows the storage devices to be centrally managed, and can be used to reduce the limitations of physical storage capacity and hide the complexity of physical devices.

Distributed storage systems are designed to support horizontal scaling, which means adding more nodes to the system to increase both computing capability and storage space. This enables the system to handle large amounts of data and large numbers of users. Distributed storage systems also support storage resource pooling and virtualization, which allows for efficient use of storage resources and easy management of storage.

NAS (Network Attached Storage) is a type of storage system that provides file sharing services over a network. NAS systems use standard network protocols such as NFS (Network File System) and CIFS (Common Internet File System) to provide file-level access to data, allowing multiple users to access and share files stored on the NAS device. This makes it an effective solution for storing, sharing, and managing large amounts of data within an organization. Additionally, modern NAS systems can offer features such as data replication, snapshots, and data protection, which adds to the functionality of the storage solution.

Resolution: Only thin LUN can enable deduplication.

In active-standby mode, only one controller works at a time and if one controller is faulty, services are not affected. In active-active mode, both controllers are active and the service failover is more efficient than in active-standby mode.