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Server Konsolidering. Kent Riis Rasmussen. Customers top Windows issues. Source: Gartner Research (December 2002). Hva er konsolidering. Fordelene kommer av: Standardisering Bedre utnyttelse av ressurser (Servere) Utnyttelse av plass Bedre kontroll av IT ressurser Bedre sikkerhet
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Server Konsolidering Kent Riis Rasmussen
Customers top Windows issues Source: Gartner Research (December 2002)
Hva er konsolidering • Fordelene kommer av: • Standardisering • Bedre utnyttelse av ressurser (Servere) • Utnyttelse av plass • Bedre kontroll av IT ressurser • Bedre sikkerhet • Improved business integration from information sharing
Ikke bare HW • Redusere antall Desktop OS • Redusere antall Server OS • Redusere antall applikasjoner • Redusere antall DB • Redusere antall Domener
Hva driver en konsolidering • For mange OS > 5 • For mange servere – typisk • Administrasjon • Software distribusjon • Time to market for nye app. • Uoversiktlige software lisenser • Slutt på support – NT 4.0, eller annet
Forretningsproblem • You start losing track of servers • Easily done if you have dozens or hundreds dispersed over several locations. The flip side of this is knowing where a server is but not knowing what it does. • You don't have enough administrators • Someone has to look after all those servers. The more you have the more likely you are to run short of skilled people to maintain them.
Forretningsproblem • You are running more than five operating systems • The rule of thumb is that one person can know two operating systems reasonably well. Any more than that and you face a dilution of expertise. Once you get up to five you are seriously stretched and vulnerable. • You have difficulty controlling software licenses • Complex, dispersed environments = a tangle of software licenses. If you fail to comply, or forget to buy them in the first place, you could face prosecution.
Forretningsproblem • You think it's cheaper to buy new servers than to do capacity planning • A classic warning sign. It's nearly always cheaper to plan properly than to buy new kit as a knee-jerk reaction to increased demand. If you think otherwise, you probably need to consider consolidation. • Your utilization rates for more than half your servers are in single digits • Most of your servers are idle for 90 per cent of the time, but you are paying to administer and maintain them 100 per cent of the time.
Hvorfor konsolidere på Microsoft Do more with less • Økonomi • 20% til 30% reduksjon av servere vs NT 4 • 30% reduction in overall costs vs NT 4 • Pålitelighet • Network Load Balancing • Failower Cluster • application reliability features
Hvorfor konsolidere på Microsoft Do more with less • Skalerbarhet • significantly better performance across all major workloads • Online Transaction Processing - ranked #1 • Decision Suppor - ranked #1 • E-Business workload TPC-W - ranked #1 • information on benchmark results
Typer konsolidering • Logisk • Geografisk • Homogeneous • Heterogeneous • Forward • Backward
Typer konsolidering • Homogen konsolidering • Kombinere en applikasjon som eksisterer på flere servere til en server • Exchange, fil, print • Hetrogen konsolidering • Kombinere flere forskjellige applikasjoner fra flere servere til en server • Exchange, SQL & SAP fra tre servere til en. • Hetrogen konsolidering er ikke alltid mulig / gjennomførbart
Email Database Improve Management File Server Reduce Servers Interoperability Backward Consolidation Forward Consolidation Server Consolidation Scenarios Unix/Netware migration Interop at every level Operational Excellence & Management
Konsoliderings Scenarios Scenario Business Challenge Windows Advantage Database Too many servers running at low capacity. Multiple databases, Single Server Utility-Hosting Messaging Messaging server farms growing to ensure scale 5000 concurrent users on a single Exchange server File & Print Sprawl of servers without consistent management Clustered File Server Instances Utility-Hosting Windows Active Directory Scalability Domain NT 4.0 Domains Number in the hundreds Web Application Application Servers at low capacity IIS 6.0 - .Net App-domains Utility-Hosting
Single Workload Consolidation • Exchange messaging • Exchange 2000 gir nye muligheter for serverkonsolidering, flere brukere pr server 300% • Exchange 2003 gir større muligheter for site konsolidering med mer effektiv transport • NT 4 Domain konsolidering • NT 4 Domains er lite flesible bl.a administrasjon • PDC / BDC problematikk • Windows server 2000 & 2003 er langt enklere å administrere, skalerer bedre og er mer WAN effektive.
Multiple Workload Consolidation • WEB servere (sprawl) • En applikasjon pr server har vært vanlig • Applikasjons isolasjon har i liten grad vært mulig • Gir liten utnyttelsesgrad på servere • IIS 6.0 gir helt nye muligheter for konsolidering • Applikasjonsservere • Isolasjon av foretningsenheter. • Rask utrulling av nye applikasjoner.
Multiple Workload Consolidation • For å kombinere homogen workload til hetrogen workload på en server • Workload managemet tools • Available scaleable HW • Disaster recovery plan
Windows Tekonologi Feature: NT4 WS2000 WS2003 Workload Management x** xx* Virtualization (Virtual Server) x xx Hardware Partitioning x x Load Balancing & Failover x xx Server Clustering x xx xxx IIS 6.0 process isolation x Side-by-side DLLs x Point in time copies x SAN support x x * Included in Windows Server 2003 Enterprise & Datacenter Editions only ** Third party product from Aurema
Windows Server 2003 • Hetrogen / Single Workload • Fil • Pint • Domain • Homogen / Multiple workload enablers: • WSRM (Windows System Resource Manager) • Windows Virtual Server • Load Balancing & Failover Cluster • IIS 6.0 • Side By Side DLL’s
Homogen Workload enablers • File Server • Raskere NFS & CIFS fil tjenester • Bedre SAN support • Bedre rammeverk for HW levrandører for HBA (Host bus adapters) drivere. • 2x raskere check disk • Volume Shadow Copy Services (VSS)
Homogen Workload enablers • Print Servers • 100% flere printkøer • Blokking av kernel mode driver • Administrasjon via WMI – scripting • Bedre støtte for print clusters
Homogen Workload enablers • Domain Servers • Skalerbarhet (100 mill objekter testet) • Nye Group Policy Objects (reduserer behov for Domain Admins) • Enklere Forest administrasjon • Enklere konsolidering av Domener • Management • AD site struktur og SMS for software distribusjon • MOM for proaktiv overvåking
Hardware partitioning (HP, IBM, Unisys) Resource Management (WSRM) Verktøy Virtualization (Virtual Server) Medium-high throughput applications Manages resource usage Low-throughput applications Legacy applications Very high-throughput applications Complete isolation of applications Best til All applications must run on same OS level OS/HW single point of failure Re-sizing partitions requires a reboot Capacity in 4-procincrements More complex management Performance “tax” Begrensning Hetrogen /Multiple Workloads
Departmental/branch server consolidation NT4 application migration Test/development &training lab automation Customer scenarios
…if you can’t If you can… Serverconsolidationstrategy
Server consolidation strategy Ifyoucan… …ifyoucan’t
Hetrogen WEB Server Enablers • IIS 6.0 • Prosess isjolasjon i ”application pool’s” • Komuniserer direkte med OS kjerne • Selvreparerende, sjekker status periodisk • Automatisk omstart innen application pool. • Bedre ytelse – 100% - 165% • fault-tolerant process architecture • kernel-mode caching
Hetrogen Application Cluster • Integrert cluster støtte • Remote administrasjon • Oppsett av cluster noder uten reboot • Støtte for opp til 8 noder • Et 8 noders 64 bits cluster kan ha: • 512 prosessorer,