Software Defined Storage (SDS)

Software Defined Storage (SDS) abstracts data and storage capabilities (the control plane) from the underlying physical storage systems (the data plane). This allows data to be stored in a variety of storage systems while being presented and managed as one storage pool to the servers consuming the storage. The figure below shows the SDS model.

Software Defined Storage (SDS) model

Heterogeneous physical storage devices can be made part of the SDS system. SDS enables the use of standard commodity hardware, where storage is implemented as software running on commodity x86-based servers with direct attached disks. But the physical storage can also be a Storage Area Network, a Network Attached Storage system, or an Object storage system. SDS virtualizes this physical storage into one large shared virtual storage pool. From this storage pool, software provides data services like:

  • Deduplication
  • Compression
  • Caching
  • Snapshotting
  • Cloning
  • Replication
  • Tiering

SDS provides servers with virtualized data storage pools with the required performance, availability and security, delivered as block, file, or object storage, based on policies. As an example, a newly deployed database server can invoke an SDS policy that mounts storage configured to have its data striped across a number of disks, creates a daily snapshot, and has data stored on tier 1 disks.

APIs can be used to provision storage pools and set the availability, security and performance levels of the virtualized storage. In addition, using APIs, storage consumers can monitor and manage their own storage consumption.


This entry was posted on Friday 09 September 2016

Earlier articles

My Book

DevOps for infrastructure

Infrastructure as a Service (IaaS)

(Hyper) Converged Infrastructure

Object storage

Software Defined Networking (SDN) and Network Function Virtualization (NFV)

Software Defined Storage (SDS)

What's the point of using Docker containers?

Identity and Access Management

Using user profiles to determine infrastructure load

Public wireless networks

Supercomputer architecture

Desktop virtualization

Stakeholder management

x86 platform architecture

Midrange systems architecture

Mainframe Architecture

Software Defined Data Center - SDDC

The Virtualization Model

What are concurrent users?

Performance and availability monitoring in levels

UX/UI has no business rules

Technical debt: a time related issue

Solution shaping workshops

Architecture life cycle

Project managers and architects

Using ArchiMate for describing infrastructures

Kruchten’s 4+1 views for solution architecture

The SEI stack of solution architecture frameworks

TOGAF and infrastructure architecture

The Zachman framework

An introduction to architecture frameworks

How to handle a Distributed Denial of Service (DDoS) attack

Architecture Principles

Views and viewpoints explained

Stakeholders and their concerns

Skills of a solution architect architect

Solution architects versus enterprise architects

Definition of IT Architecture

What is Big Data?

How to make your IT "Greener"

What is Cloud computing and IaaS?

Purchasing of IT infrastructure technologies and services

IDS/IPS systems

IP Protocol (IPv4) classes and subnets

Infrastructure Architecture - Course materials

Introduction to Bring Your Own Device (BYOD)

IT Infrastructure Architecture model

Fire prevention in the datacenter

Where to build your datacenter

Availability - Fall-back, hot site, warm site

Reliabilty of infrastructure components

Human factors in availability of systems

Business Continuity Management (BCM) and Disaster Recovery Plan (DRP)

Performance - Design for use

Performance concepts - Load balancing

Performance concepts - Scaling

Performance concept - Caching

Perceived performance

Ethical hacking

The first computers

Open group ITAC /Open CA Certification

Sjaak Laan


Recommended links

Ruth Malan
Gaudi site
Byelex
XR Magazine
Esther Barthel's site on virtualization


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The postings on this site are my opinions and do not necessarily represent CGI’s strategies, views or opinions.

 

Copyright Sjaak Laan