An SDS (software-defined storage) refers to a software controller that is used for managing and virtualizing a physical storage for the purpose of controlling the way in which data is stored.

1. Software-Defined Storage
(SDS)

2. Table of Contents
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Software
Storage Area Network
Software-defined Storage (SDS)
Server Operating System
Specifics Delivered by SDS
Key Features of SDS
Types of SDS
Benefits of SDS
Outcome of a Move to SDS

3.  A set of programs (sequence of instructions) designed for the purpose of carrying out a well-
defined function is called a software. Software can be of two types, application software and
system software.
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Software

4. A high-speed network that is used at the block level for providing access to data storage is referred
to as a SAN (Storage Area Network). With its aid servers are connected to storage devices, such as
RAID hardware, tape libraries and disk arrays.
Any simple SAN consists of a SAN switch, a server, a storage device, SAN management software and
cables that are used to connect the various components. Usually a SAN will use various switches,
servers and storage devices. Bridges, routers and gateways are also included for the purpose of
extending SAN over wide areas. The topology of SAN is based on the requirements of an
organization.
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Storage Area Network

5.  An SDS (Software-defined Storage) refers to a storage architecture that aims to separate
storage hardware from the software that is used to manage it. Every SAN (Storage Area
Network) or NAS (Network-attached Storage) device that exists inside a data center is unified
and managed by a software-defined storage. SDS, which is developed as an industry standard,
helps to ensure enterprise-level functionality. It can run on either virtual machines or on the
server operating system and does not depend on proprietary software or hardware.
5
Software-defined Storage (SDS)

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1-800-123 -8156
Whoa!That’s a big number, aren’t
you proud?

7.  A server operating system (server OS) refers to a type of operating system that has been
designed specifically for the purpose of running on servers that function in a client/server
architecture in order to serve a network’s client computers’ requests.
 In the context of servers, let us digress and touch upon briefly the topic of web servers, which
are provided by web hosting companies for storing, processing and delivering web contents.
Web hosting companies provide all the necessary services for making websites accessible.
Terms such as “Linux Dedicated Hosting”, “Windows Dedicated Hosting” and “Linux Shared
Hosting” refer to some of the various types of web hosting services.
7
Server Operating System

8. Usually a software-defined storage provides the following-
 Standard Interfaces
 Scalability
 Automation
 Transparency
 Virtualized data path
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Specifics Delivered by SDS

9. The main features of an SDS are mentioned below.
 Automation
 Virtualization
 Flexibility
 Scalability
 Interoperability
 Enhanced storage performance
 Lower upfront costs
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Key Features of SDS

10. The main types of SDS that exist are as follows-
 Container-based
 Hypervisor-based
 Distributed file systems meant for object storage offload
 HCI software
 Scale-out storage for data that is unstructured
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Types of SDS

11. The major benefits of an SDS are mentioned below.
 Freedom with regard to the choice of hardware which runs storage services
 Automated adjustments that depend on capacity requirements
 Creation of storage infrastructure by combining data sources
 Cost-efficiency and scalability
 Freedom from hardware vendor lock-in
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Benefits of SDS

12. A move to a software-defined storage results in the following-
 Enhanced efficiency for businesses
 Improved visibility
 Data center automation
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Outcome of a Move to SDS

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