Brocade 340 Specifications Page 2
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DATA CENTER BEST PRACTICES
SAN Design and Best Practices 2 of 84
CONTENTS
INTRODUCTION .......................................................................................................................................... 6
Audience and Scope ............................................................................................................................ 6
Approach ............................................................................................................................................. 6
Overview ............................................................................................................................................. 6
ARCHITECTING A SAN ................................................................................................................................. 7
Operational Considerations ................................................................................................................... 8
Be the Pilot ......................................................................................................................................... 8
Diagnostics—Gen 5 Fibre Channel Platforms Only .................................................................................. 8
SAN DESIGN BASICS .................................................................................................................................. 9
Topologies ........................................................................................................................................... 9
Edge-Core Topology ...................................................................................................................... 10
Edge-Core-Edge Topology .............................................................................................................. 10
Full-Mesh Topology ....................................................................................................................... 10
Redundancy and Resiliency ................................................................................................................. 10
Switch Interconnections ..................................................................................................................... 11
ICL Connectivity for Brocade DCX and DCX 4-S Only........................................................................ 12
UltraScale ICL Connectivity for Brocade DCX 8510-8 and
DCX 8510-4 with Gen 5 Fibre Channel Only ................................................................................... 13
Brocade DCX 8510 UltraScale ICL Connection Best Practice ................................................................. 14
Mesh Topology .................................................................................................................................. 14
Device Placement .............................................................................................................................. 15
Trafc Locality.............................................................................................................................. 15
Fan-In Ratios and Oversubscription ............................................................................................... 17
DATA FLOW CONSIDERATIONS ................................................................................................................... 20
Congestion in the Fabric ..................................................................................................................... 20
Trafc versus Frame Congestion .......................................................................................................... 20
Sources of Congestion ................................................................................................................. 20
Mitigating Congestion .................................................................................................................. 21
Monitoring ................................................................................................................................... 21
Design Guidelines ........................................................................................................................ 22
AVAILABILITY AND HEALTH MONITORING .................................................................................................... 22
Health Monitoring .............................................................................................................................. 22
Brocade Fabric Watch ................................................................................................................... 22
Brocade Fabric Watch Recommendations ...................................................................................... 23
RAS Log ............................................................................................................................... 23
Audit Log .............................................................................................................................. 23
Brocade SAN Health .............................................................................................................. 23
Design Guidelines ................................................................................................................. 23
Monitoring and Notications ......................................................................................................... 24
Available Paths .................................................................................................................................. 24
McDATA Interop Mode .................................................................................................................. 24
Latencies .......................................................................................................................................... 25
- DATA CENTER 1
- CONTENTS 2
- INTRODUCTION 6
- ARCHITECTING A SAN 7
- Operational Considerations 8
- Be the Pilot 8
- SAN DESIGN BASICS 9
- Redundancy and Resiliency 10
- Switch Interconnections 11
- 12 of 84 12
- 13 of 84 13
- Mesh Topology 14
- Device Placement 15
- DATA CENTER BEST PRACTICES 16
- 17 of 84 17
- 18 of 84 18
- DATA FLOW CONSIDERATIONS 20
- Mitigating Congestion 21
- Monitoring 21
- Health Monitoring 22
- 23 of 84 23
- Available Paths 24
- Latencies 25
- Misbehaving Devices 25
- DESIGN GUIDELINES 26
- ROUTED TOPOLOGIES—METASANS 27
- Backbone Considerations 29
- 30 of 84 30
- Avoiding Congestion 31
- VIRTUAL FABRICS TOPOLOGIES 32
- INTELLIGENT SERVICES 33
- DISTANCE EXTENSION TOPOLOGIES 34
- FC over IP (FCIP) 35
- Not Recommended 37
- Poor Practice 37
- FCIP with FCR 38
- Using EX_Ports and VEX_Ports 39
- FCIP with FICON Environments 40
- Advanced FCIP Conguration 41
- Compression 41
- Adaptive Rate Limiting (ARL) 42
- PerPriority-TCP-QoS 43
- FCIP Design Best Practices 44
- 45 of 84 45
- Gaussian or 45
- “normal” 45
- FCIP Trunking 46
- Protocol Optimization 47
- Virtual Fabrics 48
- Ethernet Interface Sharing 49
- What is Not Supported? 50
- WORKLOADS 51
- Unix Virtualization 52
- Design Guidelines 53
- SCALABILITY AND PERFORMANCE 54
- SUPPORTABILITY 55
- 56 of 84 56
- 57 of 84 57
- Constraints 58
- BACKUP AND RESTORE 59
- 60 of 84 60
- Host Tier 60
- Storage Tier Tape Tier 60
- Storage Virtualization 61
- SECURITY 63
- Access Control Lists (ACLs) 64
- Policy Database Distribution 65
- CAPACITY PLANNING 66
- SAN Administrator: General 67
- Facilities 68
- TOOLS FOR GATHERING DATA 69
- Backup Traffic Patterns 70
- Tape Library 70
- Backup Media Server 70
- Brocade Network Advisor 70
- 71 of 84 71
- APPENDIX A: IMPORTANT TABLES 72
- APPENDIX B: MATRICES 73
- 74 of 84 74
- Consolidated SAN Snapshot 75
- Application-Specific Details 76
- SAN Admin Radar Map 77
- Facilities Radar Map 78
- APPENDIX C: PORT GROUPS 79
- Gen 5 Fibre Channel Platforms 80
- Brocade 6520 Trunk Groups 81
- Brocade 6510 Trunk Groups 81
- Brocade 6505 Trunk Groups 81
- APPENDIX D: TERMINOLOGY 82
- APPENDIX E: REFERENCES 83
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