A comprehensive guide to software-defined storage (SDS) technology, how it works, and why you should use it to modernize your data storage infrastructure.

What is Software-Defined Storage?

datacore sds solutions

Software-defined storage (SDS) is a technology used in data storage management that intentionally separates the functions responsible for provisioning capacity, protecting data and controlling data placement from the physical hardware on which data is stored.

SDS allows storage hardware to be easily replaced, upgraded, and expanded without uprooting familiar operational procedures or discarding valuable software investments.

If you contrast modern SDS principles with hardware-bound designs that inextricably tie storage operations to a specific device or manufacturer, you’ll find that each make and model performs similar functions but implements them differently so as to render them mutually incompatible.


In their most versatile form, SDS solutions hide proprietary hardware idiosyncrasies through a layer of virtualization software.Unlike hypervisors that make a single server appear to be many virtual machines, SDS combines diverse storage devices into centrally managed pools.

The scope of an SDS product may be confined to a small selection of hardware and a short list of functions, especially when offered by a hardware manufacturer consciously limiting where it can be used.

More flexible alternatives from independent software vendors, such as DataCore, support a variety of hardware choices and a rich set of data services.

Before SDS

Isolated Storage Capacity Across Unlike Storage Systems

Software-Defined Storageに立ちはだかる課題を示す図

After SDS

Software-Defined Storageの利点を示す図

Without Software-Defined Storage

  • Monolithic and siloed storage architecture
  • Rigid, hardware-bound storage infrastructure
  • Can run into vendor lock-in
  • Storage refresh and data migration are tedious
  • Premium devices are stressed with overload
  • Add more hardware when low on capacity

With Software-Defined Storage

  • 一元的にプールされた流動的なSoftware-Defined Storageアーキテクチャ
  • Flexible and hardware-independent storage infrastructure (hardware is decoupled from storage software)
  • Ultimate freedom to choose any storage vendor/model/type
  • Non-disruptive storage refresh and data migration
  • Balance capacity and load uniformly across diverse and unlike storage systems
  • Optimize unused capacity intelligently and defer new hardware expenditure

The Authoritative Guide to Software-Defined Storage

Understand the power of SDS and why now is the time to implement it in your IT department

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  • 高コスト
  • 遅延の問題
  • ストレージのダウンタイム
  • 移行の複雑さ
  • サイロの管理
  • Exponential data growth

That’s exactly where storage virtualization through software-defined storage comes in. SDS is a mature, proven technology, benefitting IT organizations and services providers across verticals and use cases.


If you find yourself losing sleep at night due to existing SAN/NAS challenges, then it is time to evaluate software-defined storage solutions. Your organization cannot afford to continue depending on traditional storage and keep throwing hardware at the problem every time you run out of capacity. It is time to modernize your storage architecture and optimize your investments.

To the degree that your SDS product can remove device-specific dependencies and be re-configured for different deployment/topology models, the more readily you can adapt to new hardware innovations from competing suppliers.


Find out how storage virtualization technology used in software-defined storage pays you back.

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仮想プールが作成されると、仮想プールに「仮想ディスク」も作成され、データを保存するためのRaw LUNとしてホストサーバーに提供されます。

Central Storage Pooling

central pooling

データセンター内の Pure、NetApp、Dell/EMC、IBM、または任意のSANやNASのアレイを組み合わせて、単一の仮想プールに統合したところを想像してください。

What if you could stripe your application data across all of them regardless of how fast or slow the devices may be? Well, you can with SDS.

Automatic Data Placement

automatic data placement


Scale, Migrate, Refresh with Ease

scale migrate and refresh with ease

Add, change, remove storage with ease using SDS. You are not bound by any choice of storage or budget constraint.

If you ever need to replace any of the expensive traditional storage gear, you will have the freedom to find more cost-effective alternatives.

Try software-defined storage solutionsfor your block, file and objectstorage environments today!

SDS Solutions from DataCore: Helping you Thrive from Diversity

With so many vendors promoting SDS products, you may find it hard to distinguish them. You will find DataCore an ideal fit for environments with a mixed collection of distributed storage equipment that operate in isolation – each running disparate functions trying to achieve similar availability and performance.

Our customers point to improved:

High Availability
Resource Pooling


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SDS for Block Storage

  • Boost performance of your block storage devices with built-in high-speed caching, parallel I/O and more
  • ビジネス継続性のためのストレージの高可用性を確保する
  • Meet your data recovery objectives with remote site replication

Key Advantages of DataCore Software-Defined Storage


  • Get the most out of existing storage investments and reduce CAPEX on new purchases
  • Gain the ultimate flexibility to integrate new technologies with existing equipment – no vendor lock-in
  • Make your storage infrastructure more efficient with intelligent, policy-driven and automated data placement
  • Simplify control and management of storage provisioning and capacity allocation from a central control plane – eliminate storage silos

Understand the key drivers and use cases for the increased adoption of software-defined storage by IT organizations.

DataCore SDS Takes You Further and Beyond

Software-Defined Storage

SDSテクノロジーの可能性は、ストレージの仮想化だけにとどまりません。DataCore SDSソリューションは、上記の利点に加えて、ミラーリング、スナップショット、レプリケーション、重複排除データ保護、統合、オーケストレーションなどのデータサービスを幅広くサポートし、特許取得済みのパフォーマンス向上テクノロジーを組み合わせて、高速かつシームレスなデータ運用を可能にします。ブロック、ファイル、オブジェクトストレージ環境を仮想化し、単一のコントロールプレーンからの制御を一元化します。

DataCore SDS solutions are extensible and agile, enabling data access via known and/or published interfaces (APIs or standard file, block, or object interfaces) that can extend the capabilities of SDS to integrate with existing and new technologies.

Ultimately, data matters the most to the application, end-user, and business. While virtualized and optimized data storage helps increase storage efficiency, out-of-the-box data services offered by DataCore SDS solutions take you further in your pursuit to maximize the value of your current and future IT investments.

Learn More About our SDS Solution

お客様の組織でSoftware-Defined Storageの導入をご検討される場合は、SANsymphonyの詳細をご覧ください。

We have been doing this for a very long time—20 years to be exact. We are considered the SDS authority, and we have the most mature platform in the market.