Cloud Computing Defined

Cloud Computing Definition
Cloud Tenets

Service Models Deployment Models
•  Software-as-a-Service (SaaS) •  Private Cloud
•  Platform-as-a-Service (PaaS) •  Public Cloud
•  Infrastructure-as-a-Service •  Hybrid Cloud
(IaaS)
http://csrc.nist.gov/publications/drafts/800-145/Draft-SP-800-145_Cloud-definition.pdf

© Copyright 2011 EMC Corporation. All rights reserved. 21

Rapid Elasticity
#.)6/.

0),)6 3 . 20),= . ,36,,= 02/:)3)/. @ ).
3/- 3 3 94/-6,,=@ 4/ 19)+,= 3, /94 .
20),= 2 , 3 4/ 19)+,= 3, ).B

•  0)4= . 3, 90@ /;.@ ).@ /2 /94 =.-),,=
•  ,).' )3 )-- )4
• 
) .3).' )3 ,3/ 9),4 4/ 3,
•  . 2,=).' (2;2 . .=;( 2 ' /'20(),,=


Measured Service
#.)6/.

,/9 3=34 -3 94/-6,,=
/.42/, . /06-) 2 3/92
93 = , : 2').' - 4 2).' • 
.!23429492 /0 26/.,
0),)4= 4 3/- , : , /! /343 ).922 /. 0=I0 2I
3426/. 002/02)4 4/ 4( 93 3)3
4=0 /! 3 2:) K B'B@ 34/2' @
02/ 33).'@ .;)4(@ . •  /.4249, /,)'6/.3 6 4/
6: 93 2 /9.43LB 02) 6 2).'
–  / /,)'6/. (3 4( ()'( 34
3/92 93' . 02)
-/.)4/2 @ /.42/,, @ .
2 0/24 02/:)).' 42.302 .=
!/2 /4( 4( 02/:) 2 .
/.39- 2 /! 4( 96,) 3 2:) B


Broad Network Access

#.)6/.

0),)6 3 2 :),, /: 2 4( . 4;/2+ . 33
4(2/9'( 34.2 - (.)3-3 4(4 02/-/4 93 =
( 4 2/' . /93 4(). /2 4()+ ,) .4 0,5/2-3 K B'B@
-/), 0(/. 3@ ,04/03@ . 3LB

•  4;/2+ )3 33 .6, 4/ /.39- 4( 3 2:)
•  .0/).43 . /! .= 4=0 A
–  -240(/. @ 4, 4@ ./4 //+@ ,04/0@ 3+4/0@ 3 2: 2@
/4( 2 00,)6/.3


Resource Pooling
#.)6/.

( 02/:) 2E3 /-096.' 2 3/92 3 2 0//, 4/ 3 2:
-9,60, /.39- 23 93).' -9,6I4 ..4 -/ ,@ ;)4(
) 2 .4 0(=3), . :)249, 2 3/92 3 =.-),,=
33)'. . 2 33)'. /2).' 4/ /.39- 2
-.B

(2 3/92 3
• 
.!23429492 . 3 2:) 3 29. /. 3(2
0(=3), :) 3 K B'B@ -9,6I4 ..4L


On-Demand Self-Service
#.)6/.
•  .I -.
/.39- 2 . 9.),4 2,,=
–  934/- 23 ).92 ./ ).!23429492
02/:)3)/. /-096.' 0),)6 3@ 0)4, /343 . 2 (2' .
39( 3 3 2: 2 6- . . 4;/2+
! 26/., *0 .3 K L
34/2' @ 3 . 94/-6,,= –  /2+,/ !/2 36.' 9.. 332=
;)4(/94 2 19)2).' (9-. –  -. 42 .3 2 02 )4
).4 26/. ;)4( ( 3 2:) E3 -.' = 4( 02/:) 2
02/:) 2B –  ( 9. 2,=).' (2;2 -=

.=;( 2 ' /'20(),,=
•  ,!I3 2:)
–  3/92 3 )2 4,=H).)2 4,=
2 3 2: = 4( 934/- 2 :)
; 3 0/24, . 002/02)4

3


Cloud Service Models
( #!% *!#
/.39- 2 . 93 4( 02/:) 2E3 00,)6/.3 /=@ )-2@ , 3!/2 B/-@
29..).' /. ,/9 ).!23429492 B (
.49)4@ )2/3/@ //', 003@
/.39- 2 / 3 ./4 -.' /2 /.42/, 4( /.92@ /(/@ )3/
9. 2,=).' ,/9 ).!23429492 B

/.39- 2 0,/=3 /. 4( ,/9 ).!23429492 02).'/92 @ //', 00
00,)6/.3 4(4 4( = (: 2 4 /2 .'). @ /2 B/-@ )./;3
092(3 00,)6/.3 93).' 02/'2--).' 92 @ 00)342=@ .'). 2@
,.'9' 3 . 4//,3 3900/24 = 4( , )3, @ 9.' /.. 4@
02/:) 2B
/.'*9-0
/.39- 2 02/:)3)/.3 02/ 33).'@ 34/2' @ @ ;2 @ )3/@
. 4;/2+3@ . /4( 2 !9.- .4, /-096.' -/. 2:) 3@

2 3/92 3 ;( 2 4( /.39- 2 )3 , 4/ 22 -2+@ ::)3@ +30 @
0,/= . 29. 2)422= 3/;2 @ ;()( . M@ 2)/. 93). 33@ @
).,9 /0 26.' 3=34 -3 . 00,)6/.3B
@ @

Sources: IDC 213197, 215504, 217579, 217945, 218252, 218938; Gartner 166525; the451Group


Examples of Cloud Eco-systems
•  )2/3/ •  Google Apps
–  /-0/. .43 I =0 2I M B •  SaaS - Gmail
–  I $ RUT •  SaaS - Docs
–  I 92 •  PaaS - Apps Marketplace
– 
I 92
•  PaaS - Development
•  -/. 2:) 3 K
L •  IBM Cloud Burst
–  ,36 /-094 ,/9 K QL
–  ,/9 2/.4
•  Enterprise (IaaS)
  Terremark
–  )-0,
–  )-0, 9 9 2:) KL   SAVVIS
–  )-0, 4/2' 2:) KRL   SunGard
–  ,36 ,/+ 4/2' K L   Rackspace

© Copyright 2011 EMC Corporation. All rights reserved.
2828

Cloud Deployment Models

Cloud Service
Provider

Enterprise X Dedicated for
Enterprise X

Enterprise P Enterprise Q

Cloud Service
Provider

© Copyright 2011 EMC Corporation. All rights reserved.
Virtualized Data Center and Cloud 2929

Evolution of IT Roles
!%(.
93). 33 . #..),
2:) .' - .4
-.' - .4

Cloud Computing Defined

More Related Content

Cloud Computing Defined