Data Storage Outlook 2021 2021 - Spectra Logic
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Data Storage Outlook 2021
2021
CONTENTS
EXECUTIVE SUMMARY ................................................................................................... 3
The Size of the Digital Universe....................................................................................................... 3
The Storage Gap .............................................................................................................................. 3
Storage Apportionment and Tiering ............................................................................................... 4
Highlights from 2021 Report ........................................................................................................... 4
BACKGROUND................................................................................................................ 4
THE NEXT STORAGE ARCHITECTURE ............................................................................... 5
File vs. Object Storage ..................................................................................................................... 5
Comparison of File vs. Object System Properties ........................................................................... 6
New Storage Tiers ........................................................................................................................... 7
The Project Tier ............................................................................................................................... 7
The Perpetual Tier ........................................................................................................................... 8
Data Movers .................................................................................................................................... 8
STORAGE TECHNOLOGIES ............................................................................................... 9
Persistent Memory .......................................................................................................................... 9
Performance Comparison of Optane vs. Standard DRAM ............................................................ 10
Flash ............................................................................................................................................... 11
Magnetic Disk ................................................................................................................................ 17
Tape ............................................................................................................................................... 23
Optical ........................................................................................................................................... 27
Future Storage Technologies ........................................................................................................ 31
Cloud Provider Storage Requirements.......................................................................................... 31
Cloud Versus On-Premise Perpetual Storage ............................................................................... 32
SIZE OF THE DIGITAL UNIVERSE .................................................................................... 36
CONCLUSION................................................................................................................ 38
Data Storage Dilemma .................................................................................................................. 38
Designing with the Cloud in Mind ................................................................................................. 38
Supporting Complex Workflows ................................................................................................... 39
Planning for the Future ................................................................................................................. 39
CONTACT US ................................................................................................................ 39
APPENDIX NOTES ......................................................................................................... 40
Copyright ©2021 Spectra Logic Corporation. All rights reserved worldwide. Spectra and Spectra Logic are registered trademarks of Spectra Logic. All other trademarks
and registered trademarks are property of their respective owners. This document is provided for information purposes only, and the contents hereof are subject to change
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reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without our prior written permission. All opinions in this white paper are
those of Spectra Logic and are based on information from various industry reports, news reports and customer interviews.
Data Storage Outlook 2021 2EXECUTIVE SUMMARY
“Do not dare not to dare.”
--C.S. Lewis
This is the sixth annual Data Storage Outlook report from Spectra Logic. The document explores how the world
manages, accesses, uses and preserves its ever-growing data repositories. It also covers the strategies and
technologies designed to protect the data being created now and for generations to come. As C.S. Lewis,
renowned British author and Oxford professor, sagely admonishes us, we must ‘not dare not to dare’ – or, spun
the other way, we must ‘dare to dare’, to dream big, to plan ahead, to pivot fast, and to innovate anew-- despite
the challenges in our path.
And challenges we have had. Last year, the Covid-19 virus hurtled through the world at an astonishing rate,
forcing countries to shutter borders, businesses and schools. As the world sheltered in place, many organizations
quickly pivoted, becoming almost 100 percent virtual, while other industries contracted to safeguard the health of
families, neighbors, colleagues, friends and strangers.
As of this writing, millions of coronavirus vaccines have been distributed, yet the world continues to battle an
invisible foe, with travel restrictions in place, masks being worn, social distancing being advised and many
organizations conducting business through the internet instead of face-to-face. Key sectors of the global economy
have been very hard hit, such as travel, hospitality and media and entertainment, while others have fared better,
including manufacturing and housing.
In light of these unprecedented conditions, predicting the future is riskier than ever. Even so, data storage and
media manufacturers, application developers, and users of data must work to anticipate future technologies,
applications, use cases and costs because accurate planning today will deliver a more promising tomorrow.
The Size of the Digital Universe
• A 2018 IDC report, commissioned by Seagate Technology, predicts that the Global Datasphere will grow to
175 zettabytes (ZB) of digital data by 2025.1 While this report took a top-down appraisal of the creation
of all digital content, Spectra projects that much of this data will never be stored or will be retained for
only a brief time. Data stored for longer retention, furthermore, is frequently compressed. As also noted
in the report, the “stored” digital universe is therefore a smaller subset of the entire digital universe as
projected by IDC.
The Storage Gap
• While there will be great demand and some constraints in budgets and infrastructure, Spectra’s
projections show a small likelihood of a constrained supply of storage to meet the needs of the digital
universe through 2031. Expected advances in storage technologies, however, need to occur during this
timeframe. Lack of advances in a particular technology, such as magnetic disk, will necessitate greater use
of other storage mediums such as flash and tape.
Data Storage Outlook 2021 3Storage Apportionment and Tiering
• Economic concerns will push infrequently accessed data onto lower cost media tiers. Just as water seeks
its own level, data will seek its proper mix of access time and storage cost.
• Spectra continues to envision a logical two-tier architecture comprised of multiple storage types. We
further envision that the first logical tier’s storage requirements will be satisfied entirely through solid-
state disk (SSD) storage technologies while the second tier requirements will be satisfied by magnetic disk,
tape and cloud deployed as object storage either on-premise or in the cloud.
Highlights from 2021 Report
• 2020 saw persistent memory based on 3D XPoint technology starting to be certified with more
traditional applications such as SAP.
• The flash market has returned to an over-supply situation driving a price reduction of 10% to 15% in
the fourth quarter of 2020 with further reductions expected throughout 2021. A more thorough
explanation as to the advantages of a zone-based storage interface for SSDs has been included.
• Seagate has announced that they are now in production of a 20TB HAMR magnetic-based disk drive.
Western Digital has announced a future drive roadmap consisting of incremental technology steps. As
part of this roadmap, they have also announced greater capacity differences between the
conventional media recording (CMR) and shingled magnetic recording (SMR) versions of these drives.
• LTO-9 tape will be shipping later this year with a capacity point of 18TB per cartridge, a 50% capacity
increase over LTO-8. A new de-facto standard interface has emerged that, if supported by tape,
would greatly expand the number of applications that could utilize tape.
• A new section has been included that compares cloud and on-premise Perpetual Tier storage.
BACKGROUND
Spectra Logic celebrated 41 years of business success last
year, with Spectra’s Founder and CEO Nathan Thompson at
the helm. The company continues to deliver a full range of
innovative data storage and storage lifecycle management
solutions for organizations around the world.
Demonstrating continuity and longevity, the firm was an
early innovator in robotics, automation and interfaces.
Today Spectra Logic’s vast solution set includes disk, object
storage, tape and software for storage lifecycle management.
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