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Kin trc tham kho IaaS trong Private CloudKin trc tham khoIaaS trong Private Cloud

Lp phn cng (Hardware Layer)

Lp phn cng bao gm cc thit b trong trung tm d liu nh my mc, h thng lu tr, ngtruyn mng, v c s h tng in ton....

Lp o ha (Virtualization Layer)

Windows Server 2008 R2 v Hyper-V l nn tng ca lp o ha ny, ph trch vic cung cp ti nguynv ng dng cn thit cho lp ng dng bn trn.

Lp t ng ha (Automation Layer)

Lp t ng ha baogm cc cng c nh Windows PowerShell 2.0, Windows ManagementInstrumentation (WMI) v WS-Management, nhng cng c ny cung cp giao din dnh cho vic qun

l gia cc lp qun l bn trn vi cc ti nguyn vt l v o bn di.

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Lp qun l (Management Layer)

Lp qun l bao gm cc sn phm trong b Microsoft System Center, m nhn vic qun l, t ngha vic cp nht, trin khai ci t, sao lu v theo di h thng.

Lp vn hnh (Orchestration Layer)

Trong lp ny, chng ta c th s dng System Center Opalis (System Center Orchestrator). palistch hp vi b System Center, gip xy dng h thng qun tr v vn hnh trung tm tch hp d liut ng, ng thi h tr cc Workflow to cc quy trnh T

Cc gii php xy dng Private CloudTrong bi ny ti xin gii thiu mt s gii php xy dngPrivate Cloudca mt s nhcung cp bao gm mt s tn tui ln nh : VMware, IBM, Dell, Microsoft.

Tt c cc sn phm u c gi tr, v p ng c cc nhu cu ca mt s phn khc

khch hng nht nh.

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Danh sch cc gii php xy dng Private Cloud :

VMware

VMware vCloud Driector

VMware vCloud Request Manager

VMware vCenter Chargeback (Nu bn mun tnh ph lm dch v cho thu)

IBM

IBM Tivoli Service Automation Manager

IBM Service Delivery Manager

IBM CloudBurst

DELL

VIS Sefl-Service Creator

VIS Director

VIS Integration Suites

Microsoft

SCVMM 2012 (System Center Virtual Machnine Manager) : Microsoft cng va mi ra mtbn beta ca SCVMM2012

http://www.microsoft.com/systemcente...next-beta.aspx

in ton m my (ting Anh: cloud computing), cn gi l in ton my cho, l mhnh in ton sdng cc cng ngh my tnh v pht trin da vo mng Internet. Thut

http://www.microsoft.com/systemcenter/en/us/virtual-machine-manager/vm-vnext-beta.aspxhttp://www.microsoft.com/systemcenter/en/us/virtual-machine-manager/vm-vnext-beta.aspxhttp://www.microsoft.com/systemcenter/en/us/virtual-machine-manager/vm-vnext-beta.aspx

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ngm my y l li ni n d ch mng Internet (da vo cch c btr ca ntrong s mng my tnh) v nh mt lin tng v phc tp ca cc c s h tngcha trong n.

Skhc bit gia in ton m my v in ton truyn thng

Trong m hnh in ton truyn thng, cc c nhn, doanh nghip s xy dng ring c sh tng k thut tcung cp cc dch v cho cc hot ng thng tin c th ca mnh.

Vi m hnh ny, mi thng tin sc lu tr, xl ni b v h s tr tin trin khai,duy tr c s h tng (mua thit b phn cng, phn mm chuyn dng, trlng cho bphn iu hnh...).

Khc vi m hnh in ton truyn thng, in ton m my lu trv xl ton b thngtin trong m my Internet. Mi cng ngh, k thut, c s h tng cng nh chi ph trinkhai trong m my s do nh cung cp m bo xy dng v duy tr. Do , thay v phiu t tu rt nhiu tin cho chi ph xy dng c s h tng ring, cc c nhn, doanhnghip trong qu trnh hot ng s ch phi tr stin va theo nhu cu sdng camnh (pay-for-what-you-use). Nh vy, m hnh ny c rt nhiu li ch nh sdng hp lngun vn, iu ha chi tiu tnh ton theo thc tsdng, lun hng nng sut tnh ton

theo cam kt ca nh cung cp dch v, tn dng c sc mnh ca Internet v cc siumy tnh, gim c bn trch nhim qun l h thng CNTT ni b.

Cloud Computing "m" hn, quan trng hn, gi rhn, . . . nh vy rt tin li cho ccdoanh nghip v t chc hot ng v gim chi ph.

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tr li ngn gn cu hi:Cloud Computing c tht shu ch cho mt t chc,cng ty hay khng? chng ta phi xem xt: quy m, hnh thc hot ng, . . . c bitnu dliu l v cng quan trng i vi h, chc hn ngi ta s xy dng mt h thnglu trring v n c vn hnh nh h thng lu trca cc ngn hng. i vi ccdoanh nghip nh m dliu khng quan trng lm, Cloud computing s l gii php ti u

do h khng phi chi ph u t, qun l, bo tr, vn hnh h thng lu tr.

c tnh ca Cloud Computing Service

Cloud Computing c nm tnh cht ni bt so vi m hnh truyn thng.

1/ Khnng co gin (Rapid elasticity)

Mt c tnh ni bt ca Cloud Computing l khnng tng m rng hoc thu nh hthng theo yu cu ngi dng (h thng s tm rng hoc thu hp bng cch thm hocgim bt ti nguyn).

Mt ngi dng k hp ng thu mt Server gm 4 CPU. Nu lng truy cp thp ch cn 1CPU l , khi h thng qun l ca nh cung cp dch v s tngt bt 3 CPU, ngidng khng phi trph cho 3 CPU ni trn v chng c a sang phc vngi dngkhc. n khi nhu cu tng tc l lng truy cp tng, h thng ngay lp tc s tng

thm CPU vo, nu nhu cu vt qu 4 CPU th ngi dng tr ph theo hp ng k vinh cung cp dch v cloud computing

Khnng co gin nhanh v linh hot gip cho nh cung cp dch v cloud computing servicetn dng ti nguyn d tha phc vc nhiu khch hng, ngi dng gim chi ph v hch phi tr tin cho nhng ti nguyn thc sdng.

2/ Dch v theo nhu cu (On-demand self-service)

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Ngi dng gi yu cu thng qua trang web cung cp dch v, h thng ca nh cung cpsp ng ngi dng c th tphc vnh: tng gim thi gian sdng server vdung lng lu tr, m khng cn phi trc tip yu cu nh cung cp dch v, tc l minhu cu khch hng u c xl trn internet.

3/ Truy xut din rng (Broad network access)

Cloud Computing Service l tp hp cc dch v cng nghthng tin (CNTT) c cung cpthng qua mi trng internet, ngi dng thch dch v g th dng dch vy, dngbao nhiu tr by nhiu, c la chn nhng dch v tt nht bt cu o bt clcno. Nh vy ngi dng c kt ni internet l c th sdng dch v, Cloud ComputingService khng yu cu ngi dng phi c khnng xl cao, ngi dng c th truy xutbng cc thit b di dng nh in thoi, PDA, laptop.

4/ Dng chung ti nguyn v iu tit dch v

Nh cung cp dch vcho php ngi dng dng chung ti nguyn do h cung cp da trnm hnh multi-tenant, ti nguyn c phn pht rt linh hot ty theo nhu cu ca ngidng. Khi nhu cu ca mt ngi dng no gim xung, lp tc phn ti nguyn d thasc phc vcho ngi dng khc. Nu mt ngi dng 4 CPU t7 - n 11 gi hngngy, mt ngi dng khc thu 4 CPU tng t13 gin 17 gi hng ngy th h c thdng chung 4 CPU

Ti nguyn dng chung

Cloud Computing Service da trn cng ngho ha, ti nguyn y a phn l tinguyn o, chng c cp pht linh hot ty theo nhu cu (ng) ca tng ngi dng

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khc nhau, nh cung cp dch v c th phc v nhiu ngi dng hn so vi cch cp phtti nguyn (tnh) truyn thng.

H thng Cloud Computing Service tng kim sot v ti u ha sdng ti nguyn baogm: dung lng lu tr, n v xl, bng thng, . Lng ti nguyn sdng c th

c theo di, kim sot v bo co mt cch minh bch cho c hai pha nh cung cp dchvv ngi dng.

Nhng kh khn

1/ Data lock-in

Ngy nay, khnng tng tc gia cc nn tng khc nhau ca cc phn mm c cithin, nhng cc hm API (Application Programming Interface) ca Cloud Computing vncha c chun ha nn nu mt ngi dng vit mt ng dng trn nn tng ca nhcung cp dch v th ng dng khng th chy c trn nn tng ca nh cung cp dch

vkhc. Nh vy ngi dng ph thuc nh cung cp dch vl iu bt li.

Nu cc cc nh cung cp Cloud Computing Service cng nhau chun ha API, ngi dngc th pht trin ng dng trn nn tng ca nhiu nh cung cp dch v. Nu h thngcung cp dch vno gp scth dliu ngi dng khng mt v n nm u trn h thng ca cc nh cung cp dch v khc. Nu nh cch ny c thc hin, chcchn s dn n cuc cnh tranh vgi, n y khi la chn dch vngi ta phi cnnhc:

Thnht, cht lng dch vtng xng vi gi m ngi sdng tr cho nh cung cpdch v, d t ngi ta vn dng, tc l t xt ra ming.

Thhai, gim data lock in v chun ha cc API s dn n khnng: c s h tng,phn mm c th chy trn private cloud hoc public cloud.

Khi ngi dng lu trdliu trn h thng ca nh cung cp dch v, cu hi t ra l: cg m bo dliu an ton, khng r r? V mt cng ngh, hin nay vn cha c cch nohiu qu gii quyt vn trn, do ngi dng thng ch la chn nhng nh cungcp ln v c uy tn.

2/ Bo mt v kim tra dliu

Nh ni trn, dliu lu trn cloud c an ton khng? Nhng chc chn xc sut bngi khc khc truy xut rt cao, y thc sl mt thch thc trong bo mt dliu.Trc ht ngi dng phi m ha dliu trc khi a ln cloud lu tr, khi sdng ttnhin phi gii m trn PC ca h. Ngi dng ghi nhn thng tin h thng sl cngvi sdng cc hiu hnh o khi cung cp dch v IaaS s lm cho ng dng ca mnhkh b tn cng hn.

Ngoi ra, bo mt dliu ph thuc con ngi, lut bo vngi dng cloud computing

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service, ngha l nh cung cp dch v phi cho ngi dng ty la chn vtr lu trvchu trch nhim php l bo m dliu ca ngi dng khng b r r, ngc li phi bithng theo lut ra bn ngoi.

3/ Tc nghn trn ng truyn dliu v hiu qu PC

C nhng ng dng khi bt u chy th dliu t, cng v sau dliu cng nhiu, c ngdng chy trn Cloud v c thlu cc v tr khc nhau, khi chy ng dng ny pht sinh

vn chuyn dliu gia cc data center. Ngi dng phi tr ph vn chuyn dliu giacc data center, ng dng chy cng vsau th chi ph ny cng tng ln, y l iu phicn nhc.

Khi nhiu my tnh o cng chy, th vn chia s v CPU hay b nht hiu qu cao,nhng vn giao tip IO ca cc my o ny gy ra nhiu vn lin quan n hiu sutmy tnh.

So snh hiu xut chy 72 my o trn EC2 gia cc my chia s b nh (a) v my chia s cng (b)

gim nh hng ca vic truy xut vo cng. Ta c thdng flash hn chtronggim hiu sut ny.

4/ Nhu cu lu trngi dng

Mc d Cloud Computing p ng linh hot nhu cu lu trca ngi nhng li gy khkhn trong qun l h thng lu tr, chng hn mt ngi sdng mua mt khong dunglng th phi cung cp cho ngi bao nhiu l ti u, va cho ngi dng hay nhiuhn yu cu, tng phc tp cu trc dliu (cu trc dliu lm sao h tr vn lutr, vn duyt, vn m rng...), hiu sut truy xut dliu trong cng khng cao(nu phc v nhu cu ca ngi sdng th h thng lu trca mnh c th d b hintng phn mnh trong lu tr).

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Nh vy, lm sao to ra mt h thng lu trtin li, p ng v nhu cu v khnng lutrca ngi sdng ang l vn phc tp phi gii quyt ca cc nh cung cp CloudComputing Service.

Kt lun

Cloud Computing Service l mt m hnh cung cp dch v hon ton mi vi nhiu u imso vi dch v truyn thng. Mc d ang pht trin mnh mnhng cng i mt vi nhiukh khn thch thc. Cloud Computing Service vi khnng co gin linh hot, rt nhiu tinli, rt ri vi ngi dng. Cho d cn lo lng v bo mt, tin cy i vi nh cungcp dch v, . . . nhng khng th ph nhn xu thpht trin tt yu ca Cloud ComputingService. V vy, cn sm sdng Cloud Computing Service nu khng mun b lc hivng.