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Microsoft Clustering

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  1. Microsoft Clustering Sean Roberts, Jean Pierre SLAC

  2. Microsoft Clustering Terminology • Network Load Balancing Cluster (NLB) • Component Load Balancing (CLB) • Server Cluster • Compute Cluster

  3. Functionality of the different types of MS cluster solutions • NLB and CLB are stateless Ethernet based load balancing service, no additional hardware required • Server Cluster is a fault tolerant stateful service, networked storage and dual NIC required • Computer Cluster is a data compute service, at least dual NIC required

  4. Overview of requirements and MS cluster products

  5. Network Load Balancing (NLB) • NLB has no status as it is stateless • Web, Terminal, and VPN typical services run on NLB • Interconnect by MAC address sharing • Resources generally application being load balanced only

  6. Component Load Balancing (CLB) • CLB has no status as it is stateless • Web COM+ typical services run on CLB • Using NLB as interconnect • Resources generally COM+ application being load balanced only

  7. Server Cluster • Cluster status held by quorum disk, generally a SAN device • SQL, Exchange, File, and Print typical services run on cluster • Interconnect by TCP and UDP on single network segment • Resources generally SAN and NAS devices, IP addresses, hostnames, and applications

  8. Compute Cluster • One or more head nodes must run Compute Cluster, remaining head and compute nodes can be Compute Cluster or Windows 2003 x64 • Remote administration and job scheduling can be run from Windows 2003 or Windows XP • Using MS-MPI supporting C, Fortran77, and Fortran90 (version of MPI2, compatible with MPICH implementation) • Using PXE for deployment of nodes

  9. Sharepoint NLB & Cluster Validation • Sharepoint web pages and configuration are pulled directly from SQL. All changes made from the application are seen immediately upon refresh of web pages • Sharepoint runs on IIS and is a valid app for NLB (with server persistence set) • Sharepoint runs on MS SQL which is a certified application that cooperatively works with the cluster service

  10. Sharepoint High Availability Technologies • Network Load Balancing – used to keep the virtual web site available in the event of a web server failure • Active/Passive SQL Cluster – used to minimize service downtime in the event of a SQL server failure

  11. Sharepoint NLB & Cluster Architecture

  12. File Cluster Architecture

  13. References • Network Load Balancing (NLB) FAQ http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/ServerHelp/358b9815-3cd3-4912-a75a-cae85ea8d5ab.mspx • Component Load Balancing (CLB) FAQ http://www.microsoft.com/technet/prodtechnol/acs/deploy/clbovrvw.mspx#EJAA • MS Server Clusters FAQ http://www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/clustering/sercsfaq.mspx#EQD • MS Compute Cluster http://www.microsoft.com/windowsserver2003/hpc/whitepaper.mspx

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