DevOps For Dummies

76 Pages·2015·4.25 MB·English

by  Sanjeev Sharma

23
Making the Grade in Desktop
Virtualization
DevOps
School District 27J provides educational services to
approximately 16,000 students in Colorado. The staff
and educators work to ensure that all students have
the knowledge, skills, and attitudes needed for present
and future competence and success. As part of this
commitment, the district sought to create an online
computing environment that leveraged a virtual desk-
2nd IBM Limited Edition
top infrastructure, ensuring that teachers had access
to their district resources at all times, which allowed
them to fully support students both inside and outside
the classroom.
The district launched its virtual desktop infrastructure
(VDI) environment with a 100-desktop pilot program
with the expectation that it would later scale to 800
desktops. As the system went live on the first day of the
school year, the resulting boot storm from teachers log-
by Sanjeev Sharma and
ging in crashed the backend of the infrastructure — the
Bernie Coyne
SAN was undersized and basically wasn’t going to work.
The CIO of the school district scurried for other stor-
age options that could quickly overcome the hardware
failure. After looking at other solutions that could take
up to 30 days to deliver, the district needed help
sooner and decided on Tegile Systems.
Tegile assessed the needs of the district quickly and
implemented a solution in the middle of the outage.
Tegile delivered the hybrid solution within days of
placing the order.
These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited.
23
Making the Grade in Desktop
Virtualization
DevOps For Dummies® , 2nd IBM Limited Edition
Published by
John Wiley & Sons, Inc.
Scho 11o1 lR ivDer iSst. trict 27J provides educational services to
Hoboken, NJ 07030-5774
appr wowwx.wiimleya.ctoem ly 16,000 students in Colorado. The staff
and e Codpyruighct a© 2t0o15r bsy J owhn oWirleyk & tSoons , eIncn. sure that all students have
the k Nno poarwt of ltheisd pugbleica,t iosnk miayl lbse r,e parondudced ,a sttotreidt inu ad reetriesv aln syesteemd ore trdan sfmoitterd ipn arnye sent
form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise,
and fexucetput asr peer mcitotedm undpere Setcetionnsc 10e7 o ar 1n08 dof thse u19c76 cUneitesds St.a teAs Csop pyrigahrt Atc t,o wfit htouht tihse
prior written permission of the Publisher. Requests to the Publisher for permission should be
commaddrietssmed teo nthet P,e rtmhisseio nds Diespatrtrmiecntt, J oshno Wuilegy &h Ston st, oInc .c, 11r1e Riavetr eStr eaetn, Ho oboknenl,i NnJ e
07030, [phone], fax [phone], or online at h ttp://www.wiley.com/go/permissions.
computing environment that leveraged a virtual desk-
Trademarks: Wiley, For Dummies, the Dummies Man logo, The Dummies Way, Dummies.com, Making
top iEnvefryrthainsg tEarsuier,c antdu rerlaeted, teradne sdreussr airen trgad etmharaks tor treegisatecrehd treadresma rhksa ofd Jo han Wcilceye &s s
Sons, Inc. and/or its affiliates in the United States and other countries, and may not be used without
to thwerititren pderimsistsironi.c IBtM raned stheo IBuMr locgoe arse reagitst eareldl t ratdiemmarekss of, I nwternhatiiocnahl B uasinlelsos wed
Machines Corporation. All other trademarks are the property of their respective owners. John Wiley
them& Stonos, Ifncu., lisl nyot asssuocpiatpedo wirtht a nsy ptruodducet onr vtensd obr moenttihone di nin sthiisd boeok .a nd outside
the c LlIaMIsT sOFr LoIAoBImLITY./DISCLAIMER OF WARRANTY : THE PUBLISHER AND THE AUTHOR MAKE
NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETE-
NESS OF THE CONTENTS OF THIS WORK AND SPECIFICALLY DISCLAIM ALL WARRANTIES,
The dINiCsLUtDrIiNcG tW IlTaHuOUnT cLIMhITeATdIO Nit WsA RvRAirNTtIuESa OlF FdITeNEsSkS FtOoR pA PiAnRTfIrCUaLsARt rPUuRPcOtSuE. re
NO WARRANTY MAY BE CREATED OR EXTENDED BY SALES OR PROMOTIONAL MATERIALS.
(VDI)T HeE nADvViICrEo AnNDm STReAnTEtG IwES CitOhNT AaIN E1D 0HE0R-EdINe MsAYk NtOoT pBE SpUIiTlAoBLtE FpOrR oEVgERrYa SImTU-
ATION. THIS WORK IS SOLD WITH THE UNDERSTANDING THAT THE PUBLISHER IS NOT
with EtNhGAeG EeDx INp REeNcDEtRaINtGi oLEGnA Lt, hACaCOtU NitTI NwG, oORu OlTdHE Rl aPRtOeFErS SsIOcNAaLl SeER tVIoCE S8. I0F P0R O-
FESSIONAL ASSISTANCE IS REQUIRED, THE SERVICES OF A COMPETENT PROFESSIONAL
desktPoERpSOsN .S HAOUsL Dt BhE eSO UsGyHTs. tNEeITmHE Rw THeE nPUtB LlISiHvEeR N oORn T HtEh AUeT HfOiRr sSHtA LdL BaEy LI AoBLfE the
FOR DAMAGES ARISING HEREFROM. THE FACT THAT AN ORGANIZATION OR WEBSITE IS
REFERRED TO IN THIS WORK AS A CITATION AND/OR A POTENTIAL SOURCE OF FURTHER
school year, the resulting boot storm from teachers log-
INFORMATION DOES NOT MEAN THAT THE AUTHOR OR THE PUBLISHER ENDORSES THE
INFORMATION THE ORGANIZATION OR WEBSITE MAY PROVIDE OR RECOMMENDATIONS IT
ging in crashed the backend of the infrastructure — the
MAY MAKE. FURTHER, READERS SHOULD BE AWARE THAT INTERNET WEBSITES LISTED IN
THIS WORK MAY HAVE CHANGED OR DISAPPEARED BETWEEN WHEN THIS WORK WAS WRIT-
SAN wTENa AsN Du WnHEdNe ITr ISs RiEzAeD.d and basically wasn’t going to work.
The FCorI gOene roal ifn fotrhmaetio ns ocn ohuro otohelr pdrodisucttsr aincd ste rvsiccesu, orr hroiwe tod cr efaote ra c uosttomh F eorr D usmmtoiesr -
book for your business or organization, please contact our Business Development Department in the
age oU.pS. att i8o77-n409s-4 1t77h, caontta cct i onfuo@lddum mqieus.ibcizk , olry vi soit wvwwe.rwicleoy.mcome/g ot/hcuest ohmpaubr . dFowr are
information about licensing the For Dummies brand for products or services, contact
failur Brean.d eAdRfitgehtrs& l Loicoenkseisn@Wgil eay.tc oom . ther solutions that could take
ISBN: 978-1-119-04705-6 (pbk); ISBN: 978-1-119-04729-2 (ebk)
up to 30 days to deliver, the district needed help
Manufactured in the United States of America
sooner and decided on Tegile Systems.
10 9 8 7 6 5 4 3 2 1
Tegile assessed the needs of the district quickly and
impl Peumbelinshteerd’s aA sckonluowtiloend gimn etnhtes middle of the outage.
Tegil Seom de oef tlhiev peeorpeled wh to hheelp ehd byribngr tihdis bsoook ltuo mtiaorkent i nwcluidteh thien fo ldloawiyngs: of
placing the order.
Project Editor: Carrie A. Johnson Business Development Representative:
Acquisitions Editor: Katie Mohr Sue Blessing
Editorial Manager: Rev Mengle Production Coordinator: Melissa Cossell
These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited.
23
Making the Grade in Desktop
VirtualizTaatibolne of Contents
School District 27J provides educational services to
approximately 16,000 students in Colorado. The staff
and educators work to ensure that all students have
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
the knowledge, skills, and attitudes needed for present
About This Book ........................................................................1
and future competence and success. As part of this
Icons Used in This Book ............................................................2
commitment, thBeeyo dndi sthter Bicootk .s...o....u...g...h....t... .t..o.... ..c...r...e...a...t..e.... .a....n... ..o....n...l..i..n...e2
computing Cehnavptierro 1n: Wmheant Its tDheavOt plse?v .e . r. .a .g . e. .d . . a. . v. .i .r .t .u . a. .l . d. .e .3sk-
top infrastructure, ensuring that teachers had access
Understanding the Business Need for DevOps ......................3
to their district resources at all times, which allowed
Recognizing the Business Value of DevOps ...........................4
them to fully suppoEnrhta nsctedu cduestonmtesr ebxpoetrihen cien .s...i..d....e... ..a...n....d.... .o....u...t..s5ide
Increased capacity to innovate ......................................5
the classroom.
Faster time to value .........................................................6
Seeing How DevOps Works .......................................................6
The district launched its virtual desktop infrastructure
Develop and test against production-like systems .....6
(VDI) environment with a 100-desktop pilot program
Deploy with repeatable, reliable processes .................7
with the expectatioMno ntihtora atn dit v awlidoatue lodpe lraattioenral squcaalitlye .. ..t..o... ..8...0...0.... 8
Amplify feedback loops...................................................8
desktops. As the system went live on the first day of the
school yearC, htahpete rr e2:s Luolotkiinngg abt oDeovtO sptso Crampa bfirliotimes t. e. .a . c. .h . e. .r .s . 9log-
ging in crashedP tahthes t ob DaecvOkpes nAddo potifo nt .h...e... ..i..n...f..r...a...s...t..r...u...c...t...u...r...e... ..—..... 9the
SAN was undersPliazne ...d.... .a....n...d.... .b....a...s...i..c...a...l..l..y... ..w....a....s...n...’..t.. ..g...o...i..n....g... .t...o... ..w.10ork.
Develop/Test ............................................................................11
The CIO of the schCooollalb doriastivter idcevte lsopcmuernrt .i..e...d.... ..f..o...r... .o....t..h....e...r... ..s...t1o2r-
Continuous testing ........................................................13
age options that could quickly overcome the hardware
Deploy .......................................................................................13
failure. After loOopkerianteg .. ..a...t.. ..o....t..h....e...r... .s...o....l..u...t...i.o....n....s... .t...h...a....t.. ..c...o....u...l..d.... t14ake
up to 30 days to deCloinvtienuro,u ts hmeon idtoirsintgr ..i..c...t.. ..n....e...e...d....e...d.... ..h...e....l.p.... ...14
Continuous customer feedback and optimization ....14
sooner and decided on Tegile Systems.
Chapter 3: Adopting DevOps . . . . . . . . . . . . . . . . . . . . . . .15
Tegile assessed the needs of the district quickly and
Knowing Where to Begin .........................................................15
implemented a solution in the middle of the outage.
Identifying business objectives....................................16
Tegile delivered thIede nhtiyfybingr ibdot tsleonelcukst iino tnhe wdeliitvheryin pi pdelainye s... ..o...f1 6
People in DevOps .....................................................................17
placing the order.
DevOps culture ..............................................................17
DevOps team ..................................................................19
Process in DevOps ...................................................................19
DevOps as a business process .....................................19
Change management process ......................................20
DevOps techniques .......................................................21
These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited.
23
iv
MakDienvOgps F otr Dhumemi eGs, 2nrd aIBMd Liemi teid nEdi tiDon esktop
Virtualization
Technology in DevOps ............................................................24
Infrastructure as code ...................................................25
Delivery pipeline ............................................................26
School District 27J provides educational services to
Deployment automation and release management ...28
approximately 16,000 students in Colorado. The staff
Chapter 4: Looking at How Cloud Accelerates DevOps . . . 31
and educators work to ensure that all students have
the knowledge,U ssikngi lCllso,u da ans dan aEntatbilteur fdore Dsev nOpese ...d...e....d... ..f..o....r.. ..p....r..e..3s2ent
Full-Stack Deployments ...........................................................34
and future competence and success. As part of this
Choosing a Cloud Service Model for DevOps .......................35
commitment, the dIiasaSt .r..i..c...t.. ..s...o....u...g....h...t... .t...o... ..c...r...e...a...t...e... ..a...n.... .o....n...l..i..n..3e5
computing environPmaaSe .n....t.. ..t..h....a...t.. ..l..e...v...e....r..a....g...e...d.... ..a... .v....i..r..t...u...a...l.. ..d....e3s7k-
Understanding What a Hybrid Cloud Is ................................38
top infrastructure, ensuring that teachers had access
Chapter 5: Using DevOps to Solve New Challenges . . .41
to their district resources at all times, which allowed
them to fully suMpopbiloe rAtp pslictautidones .n...t..s... ..b....o....t..h.... .i..n....s...i.d....e... ..a...n....d.... .o....u....t4s2ide
ALM Processes .........................................................................43
the classroom.
Scaling Agile ..............................................................................43
The district launMculhtipeled-T iietrs A pvpilirctautioanls .d....e...s...k...t...o...p.... .i..n....f..r..a...s...t..r...u....c...t.u44re
DevOps in the Enterprise ........................................................45
(VDI) environment with a 100-desktop pilot program
Supply Chains ...........................................................................46
with the expectTahtei oInnter nthet aoft T ihti nwgs o....u....l.d.... ..l.a....t..e...r.. ..s...c...a...l..e... ..t..o.... .8...0....0.. 46
desktops. AsCh tahpete rs 6y: sMtaekmin gw DeenvOtp lsi vWeo rokn: I BtMhe’s fSitrosryt .d . a. .y . .o .4f 9the
school year, the resulting boot storm from teachers log-
Taking a Look at the Executive’s Role ...................................50
ging in crashed Ptuhttein gb Taogcektheern thde  oTefa mth ...e.... .i..n....f.r...a...s...t..r...u...c....t..u...r...e... ..—....5 1the
SAN was undersSeizttiendg D aevnOdps bGoaaslsi .c...a....l.l..y... ..w.....a...s...n...’..t.. ..g...o....i.n....g... ..t..o... ..w..5o1rk.
Learning from the DevOps Transformation .........................52
The CIO of the schoExopaln ddiinsg targiilce ptr asccticuers .r..i..e...d.... ..f..o...r... ..o...t...h...e....r.. ..s...t.o52r-
Leveraging test automation ..........................................53
age options that could quickly overcome the hardware
Building a delivery pipeline ..........................................54
failure. After lookinEgxp eartim oentthinge rra psidolyl .u....t..i..o...n....s... ..t..h....a...t.. ..c...o....u...l..d.... .t5a6ke
up to 30 days to deCloivnteinruo, utshlye im dpriosvtinrgi .c...t.. ..n....e...e...d....e...d.... ..h....e...l..p... ....57
Looking at the DevOps Results ..............................................58
sooner and decided on Tegile Systems.
Chapter 7: Ten DevOps Myths . . . . . . . . . . . . . . . . . . . . . .59
Tegile assessed the needs of the district quickly and
DevOps Is Only for “Born on the Web” Shops .....................59
implemented a solution in the middle of the outage.
DevOps Is Operations Learning How to Code ......................60
Tegile deliveredDe tvOhpes Ihs Jyusbt rfoird D esvoelolupmteiontn an dw Oiptehraitnio nds .a...y....s... .o....f6 0
placing the ordDeerv.Ops Isn’t for ITIL Shops ....................................................60
DevOps Isn’t for Regulated Industries ..................................61
DevOps Isn’t for Outsourced Development ..........................61
No Cloud Means No DevOps...................................................61
DevOps Isn’t for Large, Complex Systems ............................62
DevOps Is Only about Communication .................................62
DevOps Means Continuous Change Deployment ................62
These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited.
23
Making the Grade in Desktop
Virtualization
Introduction
School District 27J provides educational services to
approximately 16,000 students in Colorado. The staff
and educators work to ensure that all students have
D
the knowledge, skills, and attitudes needed for present
evOps (short for development and operations), like most
and future comnpeewt aepnprcoaec haens, dis osnulyc ac beuszzsw.o Ard sfo rp maarnty opefo pthle.i s
commitmenEtv,e rtyhoene dtailksst arbiocutt ist,o buutg nhott e vteor yconree kantoew sa wnh aot int ilsi.n Ine
broad terms, DevOps is an approach based on lean and agile
computing environment that leveraged a virtual desk-
principles in which business owners and the development,
top infrastruopcetrautiroens,, eannds quuarliitny gas stuhraantc et deeapcarhtmeernsts hcoalladb oaractce etos s
deliver software in a continuous manner that enables the busi-
to their district resources at all times, which allowed
ness to more quickly seize market opportunities and reduce
them to fully support students both inside and outside
the time to include customer feedback. Indeed, enterprise
the classrooapmpl.ications are so diverse and composed of multiple tech-
nologies, databases, end-user devices, and so on, that only a
The district DleavuOnpsc ahpperdoa cihts w ivll ibret suuaccle dssefusl kwthoenp d eianlifnrga wsitthr tuhcesteu re
complexities. Opinions differ on how to use it, however.
(VDI) environment with a 100-desktop pilot program
with the expectation that it would later scale to 800
Some people say that DevOps is for practitioners only; others
desktops. Assa yt htheat sit yresvtoelvmes awrouennd tt hlei vcleou od.n IB Mth taek efsi ra sbtro dada aynd o f the
holistic view and sees DevOps as a business-driven software
school year, the resulting boot storm from teachers log-
delivery approach — an approach that takes a new or enhanced
ging in crashbuesdin etshs cea pbabailcitky efronmd a no ifd etah aell tihne fwraays tot rpurocdtuuctrioen , —pro -the
SAN was undvideinrgs bizuseinde sas nvadlu eb toa csuisctoamlleyrs win aans enff’icti egnot minangn etro a nwd ork.
capturing feedback as customers engage with the capability.
The CIO of tTho edo s thcish, yooou ln ededis ptarrtiiccitp asticonu frrormie stdak feohorld oertsh beeyro nsdt or-
just the development and operations teams. A true DevOps
age options that could quickly overcome the hardware
approach includes lines of business, practitioners, executives,
failure. Aftepra rltoneorks, isnupgp laietrs ,o atnhd esor o sn.o lutions that could take
up to 30 days to deliver, the district needed help
soone Ar abnodu dte cTidheids o Bn Toeogkil e Systems.
Tegile assessed the needs of the district quickly and
implemente Tdh isa b soookl tuakteiso an b uinsin tehsse-c emntriidc adplpero oacfh ttoh Dee voOupst.a ge.
Today’s fast-moving world makes DevOps essential to all
Tegile delivered the hybrid solution within days of
enterprises that must be agile and lean enough to respond
placing the roapriddley rto. changes such as customer demands, market condi-
tions, competitive pressures, or regulatory requirements.
If you’re reading this book, we assume that you’ve heard
about DevOps but want to understand what it means and how
your company can gain business benefits from it. This book is
These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited.
23
2
MakDienvOgps F otr Dhumemi eGs, 2nrd aIBMd Liemi teid nEdi tiDon esktop
Virtualization
geared to executives, decision makers, and practitioners who
are new to the field of DevOps, who seek more information
about the approach, and who want to cut through the hype
School District 27J provides educational services to
surrounding the concept to get to the meat of it.
approximately 16,000 students in Colorado. The staff
and educators work to ensure that all students have
Icons Used in This Book
the knowledge, skills, and attitudes needed for present
and future competence and success. As part of this
You’ll find several icons in the margins of this book. Here’s
commitment, the district sought to create an online
what they mean.
computing environment that leveraged a virtual desk-
The Tip icon points out helpful information on various
top infrastructure, ensuring that teachers had access
aspects of DevOps.
to th eir district resources at all times, which allowed
them to fully support students both inside and outside
Anything that has a Remember icon is something that you
the classroom.
want to keep in mind.

The district launched its virtual desktop infrastructure
(VDI) environment with a 100-desktop pilot program
The Warning icon alerts you to critical information.
with the expectation that it would later scale to 800

desktops. As the system went live on the first day of the
scho ol year, T etchheni crael Sstuuflft minatger ibalo gooets sbteoyornmd t hfer obamsic st eofa DcehvOeprss. log-
It isn’t essential reading, however.
ging in crashed the backend of the infrastructure — the

SAN was undersized and basically wasn’t going to work.
Beyond the Book
The CIO of the school district scurried for other stor-
age options that could quickly overcome the hardware
You can find additional information about DevOps and IBM’s
failure. Aftearp lporooackhi nangd saetrv oicetsh aevrai lsabolel ubyt ivoisnitisng t thhea fto llcowoiungl dwe tba ke
pages:
up to 30 days to deliver, the district needed help
soon er and d ✓ e c IBiMd eDdev Oopns S Toluetigoinl:e i bSm.ycsotme/dmevso.ps
Tegil e assess ✓ e d D etvhOeps  n—e tehed IsBM o afp tphroea cdh i(wsthritiec pta pqeur):i c ibkml.yb iazn/d
BdEnBz
implemented a solution in the middle of the outage.
✓ The Software Edge (study): ibm.co/156KdoO
Tegile delivered the hybrid solution within days of
placi ng the o ✓ rd Aedro.pting the IBM DevOps Approach (article): ibm.
biz/adoptingdevops
✓ DevOps Services for Bluemix (service): bluemix.net
These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited.
23
Making the Grade in Desktop
Virtualization
Chapter 1
School District 27J provides educational services to
What Is DevOps?
approximately 16,000 students in Colorado. The staff
and educators work to ensure that all students have
the knowledge, skills, and attitudes needed for present
and future competence and success. As part of this
comm Iint mThies nCht,a ptthere district sought to create an online
compu ▶ t Sieneigng ea nbuvsiinreossn nmeeed nfotr DtehvaOpts l everaged a virtual desk-
top in ▶ fr Fainsdtinrgu bcutsiunerses ,v aelunes inu DreivnOgp st hat teachers had access
to the ▶ ir U dndiesrtstraincdtin rg eDesvoOupsr pcreinsci palets all times, which allowed
them to fully support students both inside and outside
the classroom.
M
The district launackhineg dan yit csh avnigret iun “ablu sdineesssk atso upsu ianl” firs aalswtaryus hcatrud re
and usually requires an investment. So whenever an
(VDI) environment with a 100-desktop pilot program
organization adopts any new technology, methodology, or
with the expaeppcrtoaacthio, thna tt ahdaoptt iiotn w haos utol dbe ldaritveenr bsyc aa blues inteos s8 n0ee0d .
To develop a business case for adopting DevOps, you must
desktops. As the system went live on the first day of the
understand the business need for it, including the challenges
school year, the resulting boot storm from teachers log-
that it addresses. In this chapter, we give you the foundation
ging in crashyoeud n etehd eto bstaarct kbueilndidng o yof utrh ceas ei.n frastructure — the
SAN was undersized and basically wasn’t going to work.
Understanding the Business
The CIO of the school district scurried for other stor-
age opNtieonesd t hfaot rc oDuledv qOuipcksl y overcome the hardware
failure. After looking at other solutions that could take
up to 30 days to deliver, the district needed help
Organizations want to create innovative applications or serv-
sooner and idcees ctoi dsoelvde bousnin eTsse pgriolbele mSys. sTtheeym msay. want to address
internal business problems (such as creating a better cus-
Tegile assestosmeedr rtehlateio nnsehiep dmsan oagfe mthenet sdysitsetmr)i ocrt t oq huelipc tkhelyir cauns-d
tomers or end-users (such as by providing a new mobile app).
implemented a solution in the middle of the outage.
Tegile delivered the hybrid solution within days of
Many organizations aren’t successful with software projects,
placing the hoorwdeveerr, .and their failures are often related to challenges in
software development and delivery. Although most enter-
prises feel that software development and delivery are critical,
a recent IBM survey of the industry found that only 25 percent
believe that their teams are effective. This execution gap leads
to missed business opportunities.
These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited.
23
4
MakDienvOgps F otr Dhumemi eGs, 2nrd aIBMd Liemi teid nEdi tiDon esktop
Virtualization
This problem is further amplified by a major shift in the types
of applications that businesses are required to deliver, from
systems of record to systems of engagement:
School District 27J provides educational services to
appr oximatel ✓ y S1ys6te,0m0s 0of sretcuordde: Tnratdsi tiionn aCl soofltowraraed apop.l icTathioen ss atrea ff
and educators lwargoe rskys tteom se thnast ufurnect iotnh aast s yasltel msst ouf dreeconrdts, w hhiachv e
contain massive amounts of data and/or transactions and
the knowledge, skills, and attitudes needed for present
are designed to be highly reliable and stable. Because
and future comthpeeset aepnpclicea tiaonnsd d osnu’t cneceed stos c.h Aansg ep oafternt, oorgf atnhizias-
commitment, tthioen sd caisn tsratiicsfty tshoeiur cguhstto mteor sc arned athteeir oawnn obunsilniensse
needs by delivering only one or two large new releases
computing environment that leveraged a virtual desk-
a year.
top infrastructure, ensuring that teachers had access
✓ Systems of engagement: With the advent of mobile com-
to their districtm runeicsaotiuonrsc aends t haet m aaltlu rtaitmione osf ,w web hapipclhica atiollnos,w ed
them to fully susypstpemosr otf sretcuordd earne tbse inbgo sutphp lienmsenidtede bay nsydst eomus tside
of engagement, which customers can access directly
the classroom.
and use to interact with the business. Such applications
must be easy to use, high performing, and capable of
The district launched its virtual desktop infrastructure
rapid change to address customers’ changing needs and
(VDI) environmeevonlvti nwg mitahrk aet f1o0rc0es-d. esktop pilot program
with the expectation that it would later scale to 800
Because systems of engagement are used directly by custom-
desktops. As the system went live on the first day of the
ers, they require intense focus on user experience, speed of
school year,d etlhiveer yr, eansdu algtiilintyg — b ino ootht esr twoorrdms, af rDoevmOp st eapapcrohaechr. s log-
ging in crashed the backend of the infrastructure — the
Systems of engagement aren’t isolated islands and are often
SAN was undersized and basically wasn’t going to work.
tied to systems of record, so rapid changes to systems of
engagement result in changes to systems of record. Indeed
The CIO of the school district scurried for other stor-
any kind of system that needs rapid delivery of innovation
age optionsr etqhuairets c DoevuOlpds. Squuchi cinknloyva otiovne isr dcroivmen epr itmhaeril yh bayr dware
failure. Afteerm leorgoinkgi tnecgh naotlo ogyt threendrs s souclhu atsi oclonusd ctohmaptu tcinog,u mlodb iltea ke
applications, Big Data, and social media, which may affect all
up to 30 days to deliver, the district needed help
types of systems. We discuss these emerging technologies in
sooner and ldighetc oif dDeevdO pos nin CTheapgtielres  4S aynds  5t .e ms.
Tegile assessed the needs of the district quickly and
Recognizing the Business
implemented a solution in the middle of the outage.
Tegile delivered the hybrid solution within days of
Value of DevOps
placing the order.
DevOps applies agile and lean principles across the entire
software supply chain. It enables a business to maximize the
speed of its delivery of a product or service, from initial idea
to production release to customer feedback to enhancements
based on that feedback.
These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited.