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UNIT:
134-0: The^ British^ btovenmentcame^ to^ Ccleen 1960:Mainframe Compuke^ tosk^ us^ i0^ g^ fees. 1970: st^ LA,^ such^ as^ Ethenet 1980: Fist^ hetuoYk^ caHds^ foH^ Pls^. 1990: st^ WA^ the^ Tnternet
Foundatien
Adistibutd hystm ujens to a collutiinsf indjandnt
compute that ueku tog thex to beuidea unitiel emjuting duuieduuice: heae omputnshese^ emjutes^ ane^ gtn^ tuend^ as^ nadks
charackniyokion f Dist" Systen:
Nodes ae (^) þyoceses ) Qnd (^) edges 09e^ communicatisn^ channel "
’ Sysem Model
Dashrath. Nandan
7 Toteo Communicakon^ Process
Distibuted System
MidoleDYe
Dshtbutec objecks bRmote Tnvocakion.
Support Sysem
0S
cAssMAte Date
Distrfbuted Rre syser
laa on
Page
that 2-3^ Combutebe enogh^ il
Shaned Data Coovcination Agremernt HTranactin Rusticatien
I Salabilhy^ :^ Handle^ an^ incruesing^ lsn^ m task by^ adeling^ tesAunces
T Fautt^ Tolbhance^ :^ lontenl^ spurating^ dejite^
failra yanlaeli
Multiple emporent^ uueLig
sbinultancely
Challengs
in Ds:
*ommunicatten delays: JRspning foy su Latmuy is CMdtal
*nsistenicy and^ RepleatiniAhiauing^ consisteny^ in^ a dlystem Cuith uhlicatid data iw shalenging
fdut Dekcien and Recovesy
ConcuReey Contrele Secuniby oncons
*Adkantags of Ds:
alssute
JUata Shain iAe many er to ccUs a Common dalabu:
Nehusuk bliance
Lompler than kuntaliyd hykn
I-ommunicotien : Pnhance human -to human Comm?. qo Email Flexiblity yRelabity : If one node
Centalgea
Lomplenitu Secwty, ete
Disbibutedyten
i. (^) wmaintenance c6sty-. (^) HOh maintenanct Cest
ie Reliasle MoHe Reliable
ihdaten is^ dimpe (^) hdation is (^) moHe (^) lompla vfut (^) tolerane is (^) bw (^) fau (^) tslerance is (^) high due to (^) absence of (^) Sigle
Irends in Ds:
dinijicant changes^ in^ twment^ dutriutd^ aytim^ :
ss he omngonce sp puwnsiue technslogy
*Tateunet:
Jhe emengince sf biguitous mebile omputing
4he inceasing demand at mulkimedia tuchmtig
Www, email, etc
Zhe modern^ intenet^ is^ a^ west^ ntorcennected colectien st combuten mehuenks f many dent tyfes he intemet is slso a uvy Lange dtibuted ytm
- Mobile and ubipuites Cemputing
Internet
tchnalogical aduance in deuice miniatuniatin and
wialesa mehuonking led to nteguatien ysmall and
tordable computng' duie into distnibtol ohyutim'
(Hast intanet line les LAN WAP
Canra
Chintte
elAsSMACe.
Lapop
Date Page
Tntmet
Host Site
HomeIndant
Applicalien Senias
Storage Seuies
Comptatengl deucls
1 Physical Nodeli
ASystem Nodels -Phuical, Achitechoal f fndamenital vmadels
Tnþut
Modl that ciptue the handwase compeiten a bystm. in tums femputen and thein intencomtng neiuts
Eauly
Curve to
Baseline Physical Mode!
Model
- Three^ qeneHatiens^ of^ dituibuted^ systims^ i
34 Cluster PM.
J Client-Swr^ fhysical^ mode
Pwre
A8me key^ bhysical^ medel^ Seme Heleuant^ to^ DS:
2 Peer^ to-Run^ Phyical^ made
Values A
intenconnected by^ a^ ecal^ aea^ netuDsk^ ,^ linitd^ connechiuy
i) Trternet-^ Scale^ DS:^ CORBA-^ hedoamate^ gRowth^ s^ Trtinct lange Aale^ ds^ strtid^ to^ emekge^ "An^ eonaitle^ set s neds vintnconncted^ by^ inesnet.
edge lomptinqemputng
it) Contenporary^ Ds^ :^ he^ emngence^ 4cleud^
sombting discreati and^ uteneneus^ nsds^ are^
embeddeol
Pm
DateclAssmAte Page
Senyea
Desktop
Resbanse
Clindi
eientSeve
P-2-P)
tetent
Aleusork Pink
3undamental Models :
Tncluding:
ndamental models aHe cencened uih a moRL fomal dseniptien tf the pSberties hat ane sesent in dsteibuted aschiectune
a) The interackan model : deals uith pefemence and dpecuthu
f Aeting time linit in a dutibukd byskm
(Clint
alency- delay bckUn bansmissien bant and t jaajpt Banduidth amownt of info. that Can be transmitted -
b) Failwne Modeli rcticatien jautts that can be
ebibited by psce» and cenmunicatin channel
nuecatHer Rosutt
Date, ( Page
Nbuonk
Denial ot Serice
SGMAte
Socunity thxeas tEnemy-Unautkoiped Cenned' to Nekwoikocesp hreat to brocess- clientor senver Canet
delermine iodentiy
hreat to (omn? Channels- enemy lan copy or alter or iryec? mg
Omisnen. and arbiany faibure Timing failtae
bMtng filne i Asnia makes a faitune by
Secty mode:Discuss psible threats to brocenes land communication channels
Seuer
Copy Of m mProcey Omn?. Channel Defeating Secuniy hzeat:
Authenticaten f Senda one hanmel
Perfomance onsideration :
Ceud HeleHs to a netuse ou intonet
*Eualutien of^ Cloud (^) Combuking:
CAeud Computing'ujeHS to manipulatin , onfiuning, and acesing the aplicatien
DistibutedMainframe Computing Computing
’John Mc Caxthy is kncwn as Father of Ceud Combutinq
1950, Claud
Combukng
2004
clcemste
Compuing
- (^) key (^) Feaknes af (^) Claud (^) Cembutngi
Date
Custe
tomjukng omjuking
*Apblication:
Page
Caud
Duer th intenat
otridVirtaligakon SeHceOnentaion eb 2-
Resoure fooling, On-Demand Seuice , Laxge Neckuerk dccs Eaay maumten nce
Acvantages : Cost Sauinq ualimibd dbnge , Flexiktly dcalablity Reliablity, Autnatie dotfuone ydati
CONS :^ Limitud ContAB of tngastnuckure y Restictid lenbel
Cleud (^) spcialiged skila ,Rigid (^) Conbacts -
Online Data Storage "Backub and Recovery
Grgdata Aralysi "Testnq and deuetopment
in educatibn and medical filds
tDebleyment models t cleud
Adkantages
ast Etcient
Atutanatie Sstuane Updatu Acanibilty
4 Publie Cloud it hublic ctoud iw slud computing in which the^ inastuclore^ and bouice^ ne^ oned amd eserated^ by^ a^ thid^ banty^ pueulde^ and^ made auailable to buble^ uer^ theintonet.
Advantages:
Seeuwnih arnd bivaey ustomigatien sf Boice.
Aduantag
Flexlitly
Scalabilt
alssMte
" Seuily and princy concesn "Seuite Downtime
hb
Data
" limited Contro oveY reSOurce inta
enironment n ohich nfa and Seuuice aHe
end and poratd by a dingle Drganigatien '
Page
Diadvantags
organitaten
Disaduatages i
Highen CostCo, Limited Scalabilt, Maintenance
Privare
3Hybrid Cloud: st is a cembinatiengboh bublie nd tuate claud nuiHDnmenti
Nehuork Latency.
Diaduantage
Seanty
Factoys J. (^) Resources (^) Shared (^) among (^) mutfple. Customevg
3"
Public Cloud
Q (^) oherated by (^) Third-baxty denice Scalability More dcalabilitby Pexsiltty teristily. Exbensie Less Espensive
- (^) Availaslt, The (^) geneic (^) public.
A (^) Seuuices (^) cted by (^) cld
and
v Fags (Funcion as a Seuelce).
Pros
alccate
L Disaster Recovexy GAcesibiliby
Cost efechiue:
BScalability
Date
þrouider:Sbecitic ovganisation
Tpredictabikty and consiseny'
Paga
Pivate cloud tshand wutth a single Organigatien.
KPos ad Cons af Cloug Storage
Mbst cleud computino seruicu fau intb fie cakgnies : Saas(Seftunne ds a Serwice): Consumer aphlicaton ToaS(Tntastucue as a Sesuce) : on demand creatien
i) PaasC Platom as (^) aa seuice): Pimanily fon deuelipere -
iv) Xaas (Anythingl avegtheng s a Soutce)
More exbensive tResticted to^ a^ specfie Oganigatior
a
Collabratien Setuae update, Data last þreventien ,
Cons Plack af Contsot PInlenet cependet Bivacy Concern Fxed ontack
Doshath. Nomdam
Qs a Guest Machine
t Vistualizatien in Ceud lenputing : Viktualzatien is the'Creatien sa tetal wsion t SRuel, dektop, a stoage deuice , an 0S ete
AFlcakion
Jhe machine on which uiatial machine ia geing to Creat knouon as Hast Machine and that itual machite iw
licahon as
clssMAte
Vital Infrashucure
Date
Nekuork and storqge Vitualeed Caud Medel
Page
Harduan Vishaliaton hhen the uiatal omachune Sothuone is siectly^ ihstalled^ sn^ the^ haduane^ systim^ i^ knaun es hantuane uitualigaten dtis dene hecause
&Sone Vintaaligotin: ithual machint dgt -Oh Vihual machin manager (VoN) da direcly nstalleo en theauun dutem: dl i done because a bingle Su can be diudodinto^ multle^ beuers^ en^ demanal^ bass
oOS Vistualeatin:^ n^ this^ sMM^ i^ installed^ en^ the Hest sheatlhg bystem"t is mainly uld for testin he asplicatin n difernt plaom fs
4
iv. Cst EHicieny : fay- ai you-Gio madet V.Soice modeli : Taos, Paa S, SaaS
Vi.Glebal Acestbility
Storage Virtaliyatin
the physical Aterage frem multible nettek Sorage
deuice do hat it eeKS like a bingle soge deuize
t is Done for back-uh and tuciuny piojose
-ReBource Rruisioning : On demand acan t þpaakirg jauuy
Soalability and Hinibilty Scalng t tempilnq tiknta
Chaltnga -Scnit and pincy loncenn
Dependency Bn internet cennectiuty -
alssnate Date
Cloud Combuting
Page
fü Vénde lock in : Challingeu in buithing fam Gne Compuiting
Þruicde to anelhes
Jetal Gtenatinal lst an
Vitualigatiln "t paauidu pools and hesuncedtis ued to make bimuatdl hech aHe automateol Cnuronment "Set-ub can te (^) tomlicatd the (^) set- (^) udinpler perational cost are louer than cleud
yscal suer tahaciy
"Reouie nany cledieatd tsingle didicotid hadune
cwane tombonant
