Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 5.2 Installationsanleitung Seite 3

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Table of Contents
1 Executive Summary...............................................................................................................7
1.1 Introduction....................................................................................................................7
1.2 Audience........................................................................................................................8
1.3 Acronyms.......................................................................................................................8
1.4 Reference Documentation.............................................................................................9
1.5 SAP Overview..............................................................................................................10
1.6 Cluster Technology Overview......................................................................................11
2 Testbed Environment..........................................................................................................11
3 Hardware Requirements......................................................................................................12
3.1 Shared Storage Requirements.....................................................................................12
3.2 Server Hardware Requirements...................................................................................12
3.3 Network Requirements.................................................................................................13
4 Red Hat Cluster Basics.......................................................................................................13
4.1 OpenAIS.......................................................................................................................13
4.2 CMAN...........................................................................................................................13
4.3 Quorum........................................................................................................................13
4.4 Qdisk............................................................................................................................14
Additional heuristics........................................................................................................15
4.5 GFS..............................................................................................................................15
4.6 DLM..............................................................................................................................16
4.7 Fencing........................................................................................................................16
4.7.1 Power Fencing Systems.......................................................................................16
4.7.2 SAN Based Fencing..............................................................................................16
4.7.3 SCSI Fencing .......................................................................................................16
4.8 CLVM...........................................................................................................................17
4.9 Storage Mirroring.........................................................................................................17
4.10 Cluster Resource Manager........................................................................................18
4.11 Shared Root Cluster...................................................................................................18
4.12 Scalability...................................................................................................................18
4.13 Availability..................................................................................................................18
4.14 Management..............................................................................................................18
5 Operating System Installation..............................................................................................19
5.1 OS Customizations......................................................................................................19
5.1.1 NTP.......................................................................................................................19
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