Do, mc s dng ti nguyn v nng lng ca h thng u c ti u ha. d. Web Trong b ci t ca Windows Server 2008 R2 c tch hp sn IIS 7.5 (Internet Information Services), mt bn cp nht ca IIS 7 trong Windows Server 2008.Windows Server 2008 R2 l phin bn th 2 ca h iu hnh Windows Server 2008.Windows Server 2008 r2 khc phc kh nhiu li v nhiu ci tin mi so vi bn Windows Server 2008 thng.
Bt u t Windows Server 2003, Microsoft bt u chu k ra mt sn phm mi nh sau: Sau mi 3 n 5 nm s gii thiu mt phin bn hon ton mi (Windows Server 2003, Windows Server 2008), ng thi a ra phin bn R2 vi nhng cp nht ln vo khong gia thi gian ny (Windows Server 2003 R2, Windows Server 2008 R2). Nh vo chu k ny, vic gii thiu cc bn cp nht Service Pack s t hn, trong khi cung cp cho ngi dng nhng gii php n nh hn. Nn phn bit, s lng cp nht t cao n thp Phin bn mi R2 Service Packs). Trong Windows Sérver 2008 R2 c rt nhiu s thay i ln, trc ht hy im qua v vn bn quyn v license. Ngi dng hon ton c th s dng Windows Server 2008 Client Access License (CAL) chung vi Windows Server 2008 R2. Windows Server 2008 R2 bao gm tt c 7 phin bn, bao gm Standard, Web, HPC (High Perfomance Computing), Enterprise, Datacenter, Itanium v 1 phin bn hon ton mi l Foundation. Phin bn Fóundation ch pht hnh di dng 0EM Original Equipment Manufacturérm dnh chó cc dóanh nghip nh (di 15 users) v b hn ch rt nhiu tnh nng. Nhng ci tin quan trng ca R2 Chng ta cng tp trung vo nhng ci tin quan trng trong phin bn ny, l. Cng ngh o ha H tr trc tip cho vic o ha cc my ch server vi Hyper-V l mt ci tin quan trng ca Windows Server 2008. Trong phin bn R2, kh nng o ha ca Hyper-V c m rng ra cho cc my con (client desktop virtualization), v tng cng kh nng phn phi a cng ng (dynamic disk allocation), cng ngh Live Migration (chuyn server o qua li gia cc server vt l m khng c thi gian gin on no cho h thng), ng thi ci thin kh nng m rng v d phng. Server 2008 R2 Windows 7 Nh WindowsKhng ch gii hn trong vic o ha my tnh, Hyper-V cn cho php o ha t xa (Remote Desktop Services RDS), o ha ng dng (App-V), v o ha cc my client (Virtual Desktop Infrastructure VDI) Vi vic h tr y cho cc hiu ng ca Windows 7 nh Windows Aero hay cc my s dng nhiu mn hnh, cng c Remote Desktop Service tr nn ng nht vi cc my client ci t Windows 7. Kh nng qun l Nh chng ta bit, trn h thng Windows Server chng ta c th thc hin cu hnh bng giao din Windows (GUI) vi cng c Server Manager hay giao din dng lnh (CLI) thng qua cng c Windows PowerShell. Trong phin bn mi ny, kh nng iu khin t xa ca c 2 cng c u c ci thin r rt. Xng sng ca h thng Windows Server l Active Directory cng c gii thiu vi nhiu ci tin, l AD Recycle Bin, tp cc cmdlets mi, bn cnh l nhiu thay i khc. Vi Windows File Classification Infrastructure (FCI) hon ton mi s phn loi t ng d liu ca ngi dng, nh ngi qun tr s qun l c hiu qu v kinh t hn. Tnh nng BranchCache vi kh nng to cache ti ch cho d liu ti cc chi nhnh, nh tit kim dung lng s dng ng truyn WAN gia chi nhnh v headoffice. Ti u ha vic s dng ti nguyn phn cng, tng cng kh nng khi ng v hiu nng cc giao tip IO khin cho vic lu tr tp trung ti cc mng SAN tr nn d dng v hiu qu hn. Kh nng m rng L phin bn u tin ca Windows Server ch h tr cho cc nn tng 64 bit. ![]() ![]() Hyper-V R2 tng cng hiu nng hot ng v gim thiu mc tiu tn nng lng. Trong phin bn mi ny, do ch h tr trn nn tng in ton 64 bit nn kh nng ti u s dng phn cng cng nh nng cp, m rng l khng gii hn. Kh nng tn dng CPU, hiu sut hot ng, kh nng tng thch vi phn mm cng mt lot cc kha cnh khc c ci tin. Gim thi gian khi ng, tng cng hiu qu hot ng nhpxut trong khi s dng t nng lng hn, tng nhanh tc ca cc thit b lu tr. H tr SLAT (Second Level Address Translation), cho php R2 hot ng hiu qu hn vi cng ngh Rapid Virtualization Indexing (RVI) trn cc CPU AMD hay Enhanced Page Tables trn CPU Intel. Cng ngh ny ci thin kh nng qun l b nh ca Hyper-V, c bit trn cc my o c dung lng b nh ln. Do, mc s dng ti nguyn v nng lng ca h thng u c ti u ha. Web Trong b ci t ca Windows Server 2008 R2 c tch hp sn IIS 7.5 (Internet Information Services), mt bn cp nht ca IIS 7 trong Windows Server 2008.
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