Definition of a Storage Array in Huawei Storage

H13-611 By islever Editorial Last updated

Intelligent Data Storage System

Short answer

C A storage array is a system that has the management software that can provide access to its sets of hard drives or tape libraries for the purpose of data access and storage.

Question

What is a storage array?
  1. A system that manages the network functions and carries the data traffic from host to storage.
  2. A system that handles the interconnection of hosts to disks drives and allows hosts to directly access the disks and use it as local drives.
  3. A system that has the management software that can provide access to its sets of hard drives or tape libraries for the purpose of data access and storage. Correct Answer
  4. A system that handles the communication of data from end users to its storage location and provide confirmation on successful storage.

Key Takeaways

Tests the distinction between raw disk access (JBOD) and managed storage arrays, highlighting that 'management software' is the defining feature.

This page explains that a storage array is a managed system of hard drives or tape libraries providing centralized data access. The correct answer is C.

Common mistake: Option B is often chosen because it mentions connecting hosts to disks, but it misses the crucial element of centralized management and logical grouping provided by the array's software.

Expert Analysis

The question asks for the definition of a storage array, a core component in enterprise storage infrastructure. To determine the correct answer, we must distinguish between different types of storage devices and their roles.

A storage array (or disk array) is a dedicated hardware system that consolidates multiple physical drives (HDDs, SSDs, or tape libraries) into a single logical unit. It is managed by specialized firmware or software that provides features like RAID, caching, and data protection. The key characteristic is that it presents these consolidated drives as a unified resource to hosts over a network or direct connection.

Let's evaluate the options:

  • Option A describes a network switch or fabric device that manages traffic flow, not the storage itself.
  • Option B describes JBOD (Just a Bunch Of Disks) or a direct-attached storage setup where hosts access disks individually without array-level management features like RAID or centralized control. It lacks the "management software" aspect central to an array.
  • Option C accurately defines a storage array: a system with management software that provides access to sets of hard drives or tape libraries for data access and storage. This captures the essence of consolidation and intelligent management.
  • Option D describes a generic data transmission or application-layer protocol function, not the physical/logical storage hardware definition.

Therefore, Option C is the correct definition. The common mistake is confusing a raw JBOD configuration (Option B) with an intelligent array (Option C). The presence of "management software" is the critical differentiator.

Exam Strategy

When defining storage components, look for keywords indicating 'consolidation', 'management', or 'logical units'. If an option describes simple connectivity without intelligence or management features, it likely refers to JBOD or basic cabling, not an array. Focus on the role of firmware/software in abstracting physical hardware.

Frequently Asked Questions

What is the difference between a storage array and JBOD?

JBOD (Just a Bunch Of Disks) connects disks directly to hosts without management features. A storage array uses management software to consolidate disks into logical volumes, offering features like RAID, snapshots, and performance optimization.

Does a storage array include tape libraries?

Yes, some storage systems are hybrid or include tape library management software, presenting them alongside disk drives for comprehensive data storage solutions.

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Discussion 3 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 3

  1. ArturNascimento 👍 2 Answered C
    A storage array is an organized collection of storage units (such as tapes, hard drives, or SSDs) managed by specialized software, offering centralized storage and advanced features such as RAID, snapshots, and replication. Option C correctly describes this functionality, while the others refer to different concepts.
  2. Balls_eye 👍 1 Answered C
    Ans: C, A storage array (also called a disk array) is a dedicated hardware setup that consolidates multiple physical drives (HDDs, SSDs, or tape libraries) into a single managed storage system.
  3. Zionxdr 👍 1 Answered C
    C for sure

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