data center network architecture

Data Center Network Architecture - H tng mng Trung Tm D Liu

Data Center Network Architecture - H tng mng Trung Tm D Liu

Dear all,Vi mc ch h tr cc bn hc vin ti Netpro ni ring v cng ng lm network, mnh mn php post ln din n mt s ti liu trong qu trnh lm vic ti SaoBacDau Corp (lc b mt s phn nhy cm ri nh). bt u cho Series bi ny, mnh chia s mt ch hin ti cng c coi l kh HOT: DataCenter - vi quan im thit k v xy dng ca Cisco (Base on Cisco Service-Oriented Network Architecture - SONA).

PHN 1: XY DNG TRUNG TM D LIUI. Khi qut v gii php v kin trc ca Trung tm d liu1. Cc vn t ra i vi Trung tm d liui vi bt k mt cng ty, doanh nghip hay mt t chc no, Trung tm d liu chnh l tri tim ca h thng Cng ngh Thng tin. Mi hot ng u gn lin vi Trung tm d liu, t cc ng dng nghip v, mi trng lm vic cng tc n cc ng dng tng tc. Trong vng hn mt thp k qua, s pht trin ca Internet v cc cng ngh pht trin ng dng da trn nn tng Web lm cho Trung tm d liu mang tm chin lc hn bao gi ht.Cc nh qun l Trung tm d liu ang phi ng u vi nhng thch thc nhm t c nhng mc ch trn. Hu ht cc trung tm d liu v ang pht trin rt nhanh chng p ng c s bng n, pht trin v kinh t, v quy m t chc ca cc doanh nghip. Hu qu l cc ng dng thng c pht trin mt cc c lp, ring l, dn n vic s dng khng hiu qu, to ra cc cc c o ri rc v mt c s h tng. Mi c o c s h tng c thit k thin v vic phc v mt ng dng nht nh, chnh v vy mt Trung tm d liu in hnh thng h tr mt tp hp cc h iu hnh, cc h thng my ch, v cc h thng lu tr khc nhau. C s h tng hn tp, h tr cc c o ng dng khc nhau, dn n nhng kh khn rt ln khi c yu cu thay i, hoc m rng Trung tm d liu cng nh rt tn km trong vic qun l, tch hp, m bo an ninh v thc hin sao lu d phng. Hnh nh ca chung ca Trung tm d liu hin ti nh hnh C.2.2.1 di y.Theo c tnh, 70% ngn sch Cng ngh thng tin dnh cho vic duy tr mi trng ng dng hin ti. Chnh v vy cc doanh nghip cn phi ci thin hiu qu hot ng, vn hnh, ti u ha vic s dng cc ngun lc ca Trung tm d liu, nhm dnh nhiu ngn sch hn cho cc d n Cng ngh thng tin mang tnh t ph, gip cho doanh nghip to ra doanh thu cao hn na. Thm na, cc nh qun tr Trung tm d liu cn c mt c s h tng kin cng, c kh nng bo v cc dch v v ng dng ca Trung tm d liu chng li cc cuc tn cng v an ninh cng nh s nh tr, gin on phc v.Mt trong nhng mc tiu ht sc quan trng ca Trung tm d liu l c c mt c s h tng thng nht, c kh nng phi kt hp cht ch cc cng ngh ng dng, cng ngh mng, cng ngh lu tr v cng ngh tnh ton, l cc cng ngh m ang ngy cng pht trin, ci thin. Bn cnh c s h tng Trung tm d liu cn phi tng cng sc mnh ca h thng Cng ngh thng tin, cho php h tr ngy cng tt hn na qu trnh hot ng kinh doanh ang thay i.

Hnh C.2.2.1: Mi trng ng dng c lp lm gim hiu qu hot ng, vn hnh p ng c nhng mc tiu quan trng trn, vic ng dng cc cng ngh tp trung ha v o ha vo Trung tm d liu cho php chuyn i cc ngun lc tnh ton cng nh lu tr t cc h thng ri rc, c lp sang thnh mt trung tm dch v (service-centric). Khi Trung tm d liu s tr thnh mt trung tm tp trung cc ngun lc c th chia s, bao gm cc thnh phn chun ha, c kh nng tp hp, phn lp, cung cp v truy xut thng qua mt h thng mng thng minh

Ch k c nhn -----------------------------------------------------1. Pass mc nh cc file nu c : NetPro hoc netpro2. Cc cu hi, thc mc ti din n NetPro c tr li trong vng 24h k t khi post.3. Click Thanks, not say thanks.-----------------------------------------------------

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#2

12-17-2008, 12:27 PM

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2. Kin trc mng Trung tm d liuS pht trin ca xu hng tp trung ha v o ha cc ngun lc ti Trung tm d liu yu cu mt nn tng mng c kh nng m bo an ninh, an ton, m bo tnh kin cng, v c kh nng m rng cao cho Trung tm d liu.C s h tng mng l mt kt cu cung cp truy cp an ton cho ngi dng u cui ti cc dch v ca Trung tm d liu, v l c s h tng cho vic pht trin, kt ni, v tp trung cc thnh phn chia s ca Trung tm d liu khi cn, bao gm cc ng dng, cc h thng my ch, cc thit b, v cc h thng lu tr. Mt h thng mng Trung tm d liu c xy dng v lp k hoch tt cung cp kh nng bo v s ton vn ca d liu v dch v, ti u ha cc ng dng v mt hiu nng v sn sng, cho php p ng mt cch nhanh chng nhng yu cu thay i v mt th trng, v mc u tin trong kinh doanh, v v s pht trin cng ngh.Kin trc mng nh hng dch v (SONA - Service Oriented Network Architecture) ca Cisco a ra nn tng nh hng cho cc doanh nghip nhm pht trin mt h thng mng thng tin thng minh (IIN - Intelligent Information Network), cho php ti u ha cc ng dng, cc ngun lc v cc quy trnh kinh doanh. Kin trc mng nh hng dch v ca Cisco (SONA) da trn mt nguyn tc c bn, l bng vic u t mt cch ng n vo h thng mng, mt doanh nghip c th tng nng sut, hiu qu hot ng, m bo s vng vng v n nh trong kinh doanh, gim thiu chi ph v ci thin mi lin kt, hiu chnh gia h thng Cng ngh thng tin vi mc u tin ca cng vic kinh doanh. iu ny hon ton ng v ht sc r rng i vi Trung tm d liu.Kin trc mng Trung tm d liu ca Cisco (DCNA - Data Center Network Architecture), da trn nn tng Kin trc mng nh hng dch v (SONA), cung cp cho doanh nghip kh nng tp trung ha, m bo tnh lin tc trong hot ng kinh doanh, ng thi cho php h tr cc kin trc v cng ngh ang pht trin nh kin trc nh hng dch v, cng ngh o ha, cng ngh tnh ton theo yu cu (On-demand Computing), vi phng thc tip cn theo Kin trc. Phng thc tip cn theo Kin trc cho cho php cc nh qun tr Trung tm d liu thc hin vic xy dng, trin khai cc cng ngh phn mm, cc cng ngh lu tr v cc cng ngh tnh ton mt cch linh ng, mm do sao cho cho ph hp nht v h tr tt nht cc mc tiu kinh doanh ca doanh nghip mnh.Bng vic xut cc kin trc tham chiu c kim nghim v cng nhn, nhng m hnh thit k thc t c chng minh, v nhng mu cu hnh chung cng nh cu hnh dnh ring, Cisco gip cc nh qun tr Cng ngh thng tin tip cn vi m hnh kin trc Trung tm d liu vi s ri ro t nht, gim thiu thi gian v chi ph u t ca doanh nghip.Kin trc mng Trung tm d liu (DCNA) ca Cisco cung cp nn tng c kh nng m rng, cho php cc Trung tm d liu c th p dung v trin khai cc cng ngh v h thng truyn thng cng nh cc cng ngh v h thng mi, ang pht trin mnh. Cc cng ngh bao gm:i) ng dng a lp (N-tier Appplications): m bo an ninh cho cc khu vc mng, h tr cc mi trng ng dng hai lp, ba lp v nhiu hn na bng vic p dng cc cng ngh, k thut nhm ti u ha sn sng ca cc ng dng v hiu dng ca cc h thng my ch cng nh cc h thng lu tr.ii) Cc ng dng Web (Web Applications): cc cng ngh ti u ha h thng my ch (Server Optimization) v tng tc ng dng (Application Acceleration), bao gm c cc ng dng HTML, cung cp kh nng m rng cho h thng v cung cp cc ng dng n ngi dng cho d h bt k u.iii) My ch dng phin (Blade Servers): kin trc Trung tm d liu cho php gim thiu cc ri ro lin quan n vic trin khai cc my ch dng phin bng vic cung cp nn tng mng thng minh, tch hp cng ngh Ethernet v cng ngh chuyn mch Infiniband (cng ngh kt ni I/O tc cao) cng vi hng dn trin khai, cho php ti u ha sn sng, an ton v hiu nng ca my ch dng phin.iv) Clustering, High-Performance Computing v tnh ton mng li (Grid): cc gii php chuyn mch lu tr, chuyn mch my ch, chuyn mch d liu nng lc cao, cho d da trn bt k cng ngh no nh cng ngh Ethernet, Infiniband hay Fiber Channel, u cho php cc ng dng c yu cu nng lc x l cao, yu cu cao v d liu v cc thit b vo ra (I/O) s dng cc kin trc tnh ton phn tn v kin trc lu tr ny.v) Kin trc nh hng dch v (SOA Service Oriented Architecture) v cc dch v Web: Kin trc mng Trung tm d liu (DCNA) to iu kin thun tin cho vic trin khai mt cch nhanh chng, an ton v tin cy Kin trc nh hng dch v SOA bng vic cho php trin khai c s h tng mt cch an ton, linh hot v d m rng, v tng cng kh nng tch hp cc ng dng vi cc dch v da trn thng ip (message-based service).vi) Tnh ton da trn nn tng Mainframe (Mainframe Computing): Cisco xut mt gii php ton din v mt cng ngh h tr giao thc dnh cho Mainframe nh SNA (Systems Network Architecture), SNA-to-IP, FICON, GDPS v cc dch v c bn ca Mainframe.



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#3

12-17-2008, 02:40 PM



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3. Cc thnh phn cu thnh Kin trc mng Trung tm d liu

D trn nn tng Kin trc mng nh hng dch v, Kin trc mng Trung tm d liu bao gm cc lp c bn nh hnh v C.2.2.2 di y.

Hnh C.2.2.2: Kin trc Trung tm d liu

i) Lp c s h tng mng (Networked Infrastruture Layer): c nhim v p ng tt c cc yu cu v bng thng, tr, v cc yu cu v giao thc truyn thng t ngi s dng n my ch (user-to-server), gia cc my ch (server-to-server), v gia h thng my ch vi h thng lu tr (server-to-storage).ii) Lp dch v tng tc (Interactive Services Layer): cung cp Cc dch v m rng cho c s h tng (Infrastructure Enhancing Services), m bo s lin kt cc ngun lc ca Trung tm d liu vi cc yu cu ca ng dng mt cch nhanh chng v an ton, v cung cp cc Dch v mng ng dng (Application Network Services) cho php ti u ha vic tch hp ng dng cng nh vic chuyn giao ng dng n ngi dng u cui. Cc dch v ny c tch hp vo nn tng h tng mng ca Cisco, bao gm c lp C s h tng mng (Networked Infrastrcture Layer).Kin trc ny h tr vic trin khai cc ng dng kinh doanh v cc ng dng cng tc ca doanh nghip, bt k l trin khai vi cc kin trc ng dng truyn thng hay kin trc nh hng dch v tin tin.Lp C s h tng mng (Networked Infrastructure Layer)Nn tng ca Kin trc mng Trung tm d liu cung cp cc dch v kt ni thng minh cho cc thnh phn c ni mng trong phm vi Trung tm d liu, v d gia cc my ch v h thng lu tr, cng nh cung cp cc kt ni vi ngi dng bn ngoi hoc vi cc Trung tm d liu khc. Kt cu mng c xy dng vi tnh kin cng cao, vi cc h thng c kh nng m rng v cc dch v thng minh c tch hp trc tip vo chnh kt cu mng. N c cu thnh bi cc h thng tch hp nhm p ng cc yu cu kt ni c th, bao gm h thng chuyn mch my ch c kh nng m rng cao, bng thng ln v tr nh, cc h thng chuyn mch lu tr thng minh h tr a gia thc, tc cao, cung cp kt ni khong cch xa, c kh nng m rng cao. V d mt h thng tnh ton nng lc cao (High-Performance Computing Cluster) c th yu cu s dng h thng Infiniband, h thng tnh ton mng li (Grid Computing) s yu cu kt ni tc 10GE Ethernet, v h thng mng lu tr (SAN - Storage Area Network) s yu cu cc kt ni Fiber Channel, FICON, iSCSI, trong khi cc ng dng sao lu ng b s yu cu cng ngh DWDM cho kt ni gia cc Trung tm d liu vi nhau.Hnh C.2.2.3 di y s cho mt ci nhn c th hn v vic cc thnh phn, h thng trong Trung tm d liu s kt ni vi nhau nh th no. Cc thnh phn cu thnh Trung tm d liu s c cp cc phn tip sau.

Hnh C.2.2.3: M hnh mng Trung tm d liu

3.1.1 H thng mng my ch (Server Farm Network)Vic tp trung ha c h h tng Trung tm d liu i lin vi vic xy dng mt h thng mng my ch c kh nng m rng cao, cho php m rng v cung cp mi trng an ton cho cc ng dng chy trn n.C s h tng mng IP thng minh ca Cisco cho php Trung tm d liu cung cp cc truy cp an ton v ti u t ngi dng u cui ti cc ng dng ti Trung tm d liu, cung cp kh nng truyn thng tc cao v tin cy gia cc lp my ch, gia cc ngun lc tnh ton v gia cc ng dng vi nhau. Cisco xut vi cc nh qun l Trung tm d liu mt c s h tng mng IP xy dng da trn h thng chuyn mch thng minh, c thc t chng minh, ginh c nhiu gii thng v cng ngh, l dng sn phm chuyn mch Cisco Catalyst, m tiu biu l thit b chuyn mch Catalyst 6500. Cisco v ang tip tc i tin phong trong lnh vc ny, vi nhng pht minh, sng ch nhm ngy cng tng cng sc mnh c s h tng mng IP cho Trung tm d liu, p ng c yu cu ngy cng cao ca Trung tm d liu v mm do, sn sng, v nng lc x l ca cc h thng chuyn mch. ng thi, thit k m-un ha ca cc h thng ny cho php d dng nng cp h tr cc cng ngh v cc dch v tin tin trong tng lai. Hnh v C.2.2.4 s cho mt ci nhn c th hn v c s h tng mng IP ny, c xy dng da trn nn tng cc thit b chuyn mch Catalyst ni chung v thit b chuyn mch Catalyst 6500 ni ring, ng vai tr trung tm trong Kin trc Trung tm d liu.

Hnh C.2.2.4: M hnh n gin ha mng Trung tm d liu

Kh nng tch hp trc tip cc dch v quan trng, mang tnh sng cn i vi Trung tm d liu, nh Firewall, IPS, Server Load Balancing, SSL Off-loadvo kt cu mng yu cu mt cch tip cn hon ton mi i vi vic thit k Trung tm d liu. Hn na kh nng o ha ca cc dch v ny p dng vo mi trng ng dng thch hp lm cho cc thit b chuyn mch Catalyst tr nn ph hp hn bao gi ht i vi mt h thng mng my ch c kh nng m rng cao trong Trung tm d liu. Cisco xut thit k lp dch v service layer nm gia lp tp trung (Aggregation layer) v lp li (Core layer).

To be Continued :-p



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#4

12-19-2008, 07:57 AM



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3.1.2 Mng kt cu my ch (Server Fabric Network)Trc y, yu cu tnh ton tc cao (HPC - High-Performance Computing) thng ch c p dng trong cc ngnh c bit vi nhng ng dng chuyn bit, hoc trong mi trng nghin cu. H thng HPC bao gm mt tp hp rt ln nhng h thng my tnh, mc d c nng lc x l ring r khng cao, tp trung x l mt tc v. Tuy nhin ngy nay, yu cu tnh ton tc cao s dng cc h thng my tnh thng thng ny (HPC) v ang c cc doanh nghip quan tm nhm tng sc mnh x l cc ng dng ca doanh nghip v gim chi ph u t, vn hnh, khai thc.H thng HPC yu cu mt mi trng kt ni tc cao, tr thp nhm lin kt sc mnh ca cc my tnh ring r thc hin mt tc v nht nh. Gii php chuyn mch my ch s dng cng ngh Infiniband (Cisco Infiniband Server Fabric Switch) cung cp mt nn tng chuyn mch tc ln ti nhiu Terabit vi kin trc iu khin thng minh, kh nng o ha, cho php kt ni cc my tnh thnh phn vi thng lng cao, tr thp. ng dng c bn ca gii php ny c th hin trong hnh C.2.2.5

Hnh C.2.2.5: Cc ng dng s dng Server Fabic Switch

Hnh C.2.2.6 l mt v d v mt Ngn hng ln ti ph Wall (Wall Street) s dng gii php Cisco Server Fabric Switch cho ng dng tnh ton mng li (Grid-Computing) ca mnh.

Hnh C.2.2.6: Mt Ngn hng ln ti ph Wall ng dng Cisco SFS

3.1.3 Mng lu tr (SAN - Storage Area Network)Yu cu v h thng lu tr ang ngy cng tng. Xu hng cng ngh ang chuyn dn t h thng lu tr trc tip DAS (Direct-Attached Storage) sang h thng lu tr theo cng ngh SAN (Storage Area Network) nhm nng cao kh nng m rng v mc thng minh ca h thng. Xu hng mng SAN mang li nhiu li ch cho doanh nghip, t vic cung cp kh nng lin tc trong kinh doanh n gim thiu chi ph u t. Cng ngh SAN cho php s dng hiu qu ngun ti nguyn lu tr, cung cp kh nng sao lu d phng mt cch nhanh chng, hiu qu.Ngay bn thn cng ngh SAN c nhng bc pht trin vt bc, t giai on u tin vi cc h thng SAN c lp (SAN Island) c tp trung ha (SAN Consolidation), n giai on th hai l giai on o ha h thng mng SAN, v giai on th ba s pht trin trong tng lai l giai on t ng ha, nh hng theo dch v. Hnh C.2.2.7 cho ta mt ci nhn r hn v tng giai on pht trin ny ca h thng mng SAN.

Hnh C.2.2.7: Cc giai on pht trin ca h thng mng SAN

Gii php mng lu tr Cisco a ra, da trn nn tng thit b chuyn mch SAN Switch MDS9500, cung cp mt gii php mng lu tr h tr cc dch v thng minh, a giao thc, tc cao vi kh nng o ha, h tr cc mng SAN o (VSAN). Bn cnh gii php mng SAN da trn MDS9500 cn h tr mt di rng cc chun giao tip thng dng nh Fiber Channel, FICON, iSCSI, Fiber Channel over IP (FCIP), v Gigabit Ethernet.



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#5

12-19-2008, 04:58 PM



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3.1.4 Mng kt ni cc Trung tm d liu (Data Center Interconnect Network)Khi xu hng xy dng Trung tm d liu tp trung ngy cng c cng c v pht trin th vic gim thiu thi gian gin on, xy ra s c bng vic xy dng Trung tm d liu d phng v thit lp kt ni gia Trung tm d liu chnh v Trung tm d liu d phng cng tr nn quan trng hn bao gi ht. Kh nng cung cp kt ni tc cao, tr thp gia cc Trung tm d liu l cha kha thc hin vic ng b ha, sao lu d liu v thc hin vic lin kt cc my ch hot ng theo nhm (Server clustering) gia cc Trung tm d liu vi nhau. Gii php kt ni gia cc Trung tm d liu (Chnh v D phng) da trn nn tng thit b ONS 15000 MSTP (Multi-Service Transport Platforms) cung cp bng thng tc rt cao, tr thp bng vic p dng cc cng ngh truyn dn quang nh DWDM, SONET/SDH. Gii php ny h tr hu ht cc giao thc v lu tr nh FC, FICON, ESCON, FCIP, ng thi cung cp cc dch v Ethernet nh FE/GE/10GE.

Hnh C.2.2.8: Kt ni tc cao gia cc Trung tm d liu

Lp Cc dch v tng tc (Interactive Services Layer)Kin trc Trung tm d liu cung cp kh nng trin khai, qun l v bo v cc ng dng, cc thng tin, v c s h tng my ch, lu tr, mt cch nhanh chng, an ton v tin cy bng mt c s h tng mng thng minh, vi kh nng o ha, qun tr theo chnh sch, h tr kh nng phng chng t thch ng trc cc cuc tn cng cng vi kh nng ti u ha cc ng dng ti Trung tm d liu. Cc dch v ny, nm trong lp Cc dch v tng tc, c cung cp da trn vic xy dng mt c s h tng nh hng dch v (Service Oriented Infrastructure). Lp Cc dch v tng tc bao gm Cc dch v m rng cho C s h tng (Infrastructure Enhancing Services) v Cc dch v mng ng dng nh c th hin trn hnh C.2.2.9

Hnh C.2.2.9: Lp Cc dch v tng tc

i) Cc dch v m rng cho c s h tng (Infrastructure Enhancing Services): Cc dch v m rng cho c s h tng nng cao tin cy v sn sng cho cc ng dng v c s h tng ti Trung tm d liu. Cc dch v ny ng thi cho php thc hin vic tp trung ha v chun ha cc dch v khc nhau m trc y ch tn ti trong mi trng phn tn nh dch v tn ti trn my ch hoc h thng lu tr. Cc dch v m rng da trn nn tng mng v c tp trung ha ny cho php qun tr hp nht, ci thin nng lc x l v cho php t do hn trong vic trin khai cc thit b u cui khc nhau. Cc dch v m rng cho c s h tng bao gm:- Cc dch v an ninh, an ton: dch v Firewall, IPS, SSL, Chng DDoS- Cc dch v tnh ton: dch v nhm my ch (Server clustering), dch v o ha I/O- Cc dch v lu tr: dch v o ha h thng lu tr, dch v sao chp, dch v sao lu d phngii) Cc dch v mng ng dng (Application Networking Services): khi thc hin tp trung ha Trung tm d liu, vic cung cp cc ng dng n ngi dng u cui bt k u ng mt vai tr ht sc quan trng. Thm na, cng vi xu hng xy dng theo kin trc nh hng dch v SOA v vi vic pht trin cc ng dng da trn nn tng Web lm cho h thng mng tr thnh v tr trung tm cho vic pht trin cc ng dng phc v kinh doanh. Cc dch v mng ng dng (Application Networking Services) tng cng kh nng chuyn giao ng dng n ngi dng u cui, tng cng kh nng truyn thng gia cc lp ng dng, gia cc ng dng vi nhau v gia cc dch v khc nhau c cung cp ti Trung tm d liu. Cc dch v mng ng dng bao gm:- Cc dch v chuyn giao ng dng (Application Delivery Services): cho php ngi dng u cui, d trung tm, chi nhnh hay truy cp t xa, u kh kh nng truy xut cc ng dng mt cch nhanh chng, hiu qu. Cc dch v chuyn giao ng dng bao gm Cc dch v ng dng mng din rng WAAS (Wide-Area Application Services), Cc dch v Load-Balancing, Off-Loading- Cc dch v tch hp ng dng (Application Integration Services): cung cp kh ng tch hp cc dch v lp ng dng vo ngay c s h tng mng. Cc dch v tch hp ng dng bao gm: Kt ni mng nh hng dch v AON (Application Oriented Networking), nh tuyn bn tin (Message Routing) thc hin vic nh tuyn cc bn tin trao i gia cc ng dng trn mng..



SanhVV(12-19-2008), thokd15(12-19-2008), tu0ng_c0ng(05-29-2010)

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#6

12-22-2008, 12:22 PM



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PHN TIP THEO - CNG NGH O HA

4. o ha Trung tm d liu (Data Center Virtualization)Khi xy dng Trung tm d liu, bc tip theo ca vic tp trung ha (Data Center Consolidation) l bc thc hin o ha Trung tm d liu (Data Center Virtualization). Giai on o ha ny cho php ngi qun tr Trung tm d liu c th to ra cc lp o, tru tng gia cc ng dng, h thng my ch v c s h tng mng.o ha Trung tm d liu l vic to ra mt thc th logic t cc thc th vt l, hoc l to ra nhiu thc th logic t mt thc th vt l. Cc thc th ny c th l thit b tnh ton, h thng lu tr, h thng mng, hoc cc ng dng. Nh vy hon ton c th o ha hu ht cc thnh phn cu thnh nn Trung tm d liu, t cc dch v mng, h thng lu tr, h thng tnh ton, v cc thnh phn kt ni, nh c th hin trn hnh C.2.2.10 v hnh C.2.2.11 di y.Thc hin o ha Trung tm d liu cho php tng cng hiu qu s dng ca cc ngun lc ti Trung tm d liu, kh nng cung cp dch v nhanh hn, v gim thiu s nh hng n sn sng ca cc ng dng ti Trung tm d liu khi thc hin vic bo tr, bo dng. Hn na, mt trong nhng li ch quan trng ca vic o ha l c th to ra cc c s h tng IT c lp, ring r, an ton da trn mt c s h tng vt l duy nht. Cc c s h tng IT c lp c o ha ny h tr cc nhm lm vic khc nhau, h tr cc c s h tng ca cc n v thnh vin khc nhau da trn mt nn tng vt l duy nht.

Hnh C.2.2.10: o ha Trung tm d liu

Hnh C.2.2.11: Cc thnh phn c o ha


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#7

12-22-2008, 12:26 PM



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5. m bo sn sng cao v kh nng hot ng lin tc ca Trung tm d liui vi mt doanh nghip, c bit trong lnh vc Ti chnh, Ngn hng v Bo him, tnh lin tc trong kinh doanh l mt trong nhng yu cu ti quan trng. Khi m cc hot ng ca doanh nghip da trn c s h tng Cng ngh thng tin ni chung v da trn Trung tm d liu tp trung ni ring th yu cu v sn sng v kh nng hot ng lin tc ca Trung tm d liu c t ln hng u. y khng ch l yu cu v kinh doanh ca bn thn doanh nghip m cn l mt trong nhng quy nh bt buc mang tnh php l. Chnh v vy, bn cnh Trung tm d liu hot ng chnh, cc doanh nghip ni chung v hu ht cc doanh nghip hot ng trong lnh vc Ti chnh, Ngn hng v Bo him ni ring u xy dng cc Trung tm d liu d phng, m bo kh nng hot ng thay th cho Trung tm d liu chnh gp s c, v nh vy m bo tnh lin tc trong hot ng kinh doanh. Vic xy dng Trung tm d liu d phng ty thuc vo yu cu c th v mc d phng ca tng doanh nghip, t vic sao lu d liu bng h thng bng t n vic xy dng Trung tm d liu d phng vi c ch sao lu ng b vi Trung tm d liu chnh, m bo d liu c ng b mt cch tc thi gia hai Trung tm d liu vi nhau.Kin trc Trung tm d liu ca Cisco h tr cc doanh nghip mt chin lc ton din nhm m bo tnh lin tc trong kinh doanh. Kin trc ny p dng nhiu cng ngh khc nhau, t cc cng ngh cung cp truy cp n ngi dng u cui n cc cng ngh tng cung kh nng truyn thng gia cc Trung tm d liu (Trung tm chnh v Trung tm d phng). Cc cng ngh ny m bo tnh kin cng, kh nng mau phc hi trc cc s c xy ra ca kho d liu, ca cc ng dng v ca cc phng thc truy xut ca ngi dng vo Trung tm d liu.i) m bo tnh kin cng, mau phc hi ca kho d liu: Kin trc trung tm d liu ca Cisco a ra nhiu cng ngh tin tin khc nhau nhm tng cng bo v, sao lu v d phng d liu:- Cng ngh kt ni WAN/MAN gia cc Trung tm d liu vi tc cao, tr thp: da trn nn tng cc cng ngh lu tr, cng ngh truyn dn quang v gii php mng din rng ca Cisco. Cc gii php ny cho php m bo kh nng khng mt d liu, bo v cc phin lm vic, h tr kh nng chuyn i vai tr hot ng gia Trung tm d liu chnh v Trung tm d liu d phng mt cch t ng.- Cc cng ngh ko di mng lu tr (SAN Extension): cng ngh FCIP, cng ngh nn, m ha d liu v cng ngh nh tuyn gia cc VLAN (Inter-VLAN routing) trn cc thit b chuyn mch lu tr (MDS9000) cho php ko di khong cch ca h thng mng lu tr (SAN), m bo an ton d liu, tng cng hiu dng ca bng thng..- H tr cc ng dng ca cc hng th 3: h tr SANTap API cho php h tr cc ng dng ca cc hng th 3 khi xy dng gii php Trung tm d liu d phng.ii) m bo tnh kin cng, mau phc hi ca cc ng dng:- Loi b im cht ca h thng my ch (Single-Point of Server Failure): h tr cc nhm my ch (Server clustering) nhm tng cng sn sng, h tr kh nng phn ti (Load Balancing) gia cc my ch Web v my ch ng dng nhm bo v cc ng dng khi xy ra s c vi h thng my ch.- M rng mi trng ng dng gia cc Trung tm d liu: h tr cc nhm my ch hot ng theo nhm (cluster) gia cc Trung tm d liu, v d mt s thnh vin ca mt nhm my ch (server cluster) c t ti Trung tm d liu chnh, cc thnh vin cn li ca nhm my ch ny c th c t ti Trung tm d liu d phng. Cc giai thc v ng dng in hnh nh GDPS - Geographically Dispersed Parallel Sysplex ca h thng IBM Mainframe, GeoCluster cho SQL Server ca Microsoft t c mc tiu ny yu cu phi c h thng mng Metro tc cao, tr thp lin kt cc Trung tm d liu.iii) m bo tnh kin cng, mau phc hi ca h thng truy cp dnh cho ngi dng u cui:- Mng ring o (VPN - Virtual Private Network): cho php khch hng hoc ngi dng u cui cc chi nhnh, ngi dng xa c th thc hin kt ni ngay khi h thng tr li hot ng.- H thng la chn Trung tm d liu (Global Site Selector): cho php ngi dng u cui, t ng hoc th cng, kt ni ti ng dng Web hin ang hot ng vo bt k thi im no. Trong trng hp xy ra s c ca ng dng bt k Trung tm d liu no (Trung tm chnh hoc Trung tm d phng), ngi dng u cui hon ton c th tip tc truy cp n Trung tm d liu cn li ang hot ng bnh thng.

Hnh C.2.2.12: m bo tnh lin tc trong kinh doanh

Hnh C.2.2.13: Global Site Selector (GSS)

6. Kt lunNh vy r rng Trung tm d liu ng vai tr ti quan trng trong h tng Cng ngh thng tin ca doanh nghip ni chung v ca cc doanh nghip hot ng trong lnh vc Ti chnh, Ngn hng v Bo him ni ring. Xu hng pht trin ca Trung tm d liu bao gm xu hng tp trung ha (Consolidation), o ha (Virtualization) v t ng ha (Automation).Khi xy dng Trung tm d liu, ba yu t ct yu ca Trung tm d liu cn c m bo, l kh nng bo v (Protect), kh nng ti u ha (Optimization), v kh nng pht trin (Grow). ng thi gii php Trung tm d liu l s kt hp ca rt nhiu cng ngh khc nhau, t cng ngh mng, cng ngh lu tr n cng ngh truyn dn.Trong lnh vc ny, Cisco l nh cung cp gii php ton din, t u cui n u cui (End-to-End solution) duy nht.


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05-29-2010, 09:10 PM

tu0ng_c0ng Thnh vin cc din n

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Qu l mt ti liu hay vi anh em lm v h tng mng v h thng. Rt thanks bc cNQ cung cp ti liu ny cho lnh mi bn em.

Ti liu ny rt b ch vi anh em nu c tham gia trin khai v DC (Datacenter).

Nhn dp t ny tham gia lm v DC, mnh gi ti cc bn ton b bi dch v bn gc ca ti liu ny. Tuy khng phi l ton b nhng g v DC nhng n cng cp cho cc "lnh mi" sau ny c tham gia cc d n trin khai DC.

Ch : Mnh c tt c cc ti liu ca cc "i ca ln" trong gii CNTT th bit c cc phn ny c trch a vo bo co k thut. Rt may c sp gi lung ny ln - m mang u c anh em.

Link down bn dch v bn gc:Code:

http://www.4shared.com/file/WMEh5fcA...chitectur.htmlNgun: su & tm

P.s: Em gi ti liu ny ln lnh mi tham kho - mong cc bc vi d n ng c ngh l sao chp ca cc bc nh - em l ght nht anh no giu ngh

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