Q-Logic SANbox2-8c Manuale Utente Pagina 30
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3 – Planning
Multiple Chassis Fabrics
3-4 59042-00 A
3.2.2.2
Mesh Topology
A mesh topology describes a fabric in which each chassis has at least one port
directly connected to each other chassis in the fabric. The example mesh fabric
shown in Figure 3-2 has the following characteristics:
■ Each link contributes up to 200 MB/s of bandwidth between switches, 400
MB/s in full duplex. Because of multiple parallel paths, there is less
competition for this bandwidth than with a cascade or a multistage topology.
■ Latency between any two device ports is no more than two chassis hops.
■ 20 Fibre Channel ports are available for devices
Figure 3-2. Mesh Topology
- Installation Guide 1
- Document Revision History 2
- Table of Contents 3
- Section 3 Planning 4
- Section 4 Installation 4
- Appendix A Specifications 5
- 59042-00 A Page vii 7
- Page viii 59042-00 A 8
- Introduction 9
- Related Materials 10
- Safety Notices 11
- Sicherheitshinweise 11
- 1 – Introduction 12
- Communications Statements 12
- 1-4 59042-00 A 12
- CE Statement 13
- VCCI Class A Statement 14
- BSMI Class A Statement 14
- Laser Safety Information 15
- Accessible Parts 15
- Pièces Accessibles 15
- Zugängliche Teile 15
- Technical Support 16
- Availability 16
- Training 16
- Contact Information 16
- General Description 17
- Chassis Controls and LEDs 18
- Reset/Force PROM Button 18
- Resetting a Switch 19
- Over Temperature LED (Yellow) 19
- Fan Fail LED (Yellow) 19
- Heartbeat LED (Yellow) 20
- Input Power LED (Green) 20
- Fibre Channel Ports 20
- Port Modes 21
- Fabric Ports 21
- Expansion Port 21
- Translated Loop Port 22
- Logged-In LED 22
- Activity LED 23
- Ethernet Port 23
- Serial Port 24
- Power Supply and Fan 25
- Switch Management 25
- 2 – General Description 26
- 2-10 59042-00 A 26
- Planning 27
- Multiple Chassis Fabrics 28
- Common Topologies 29
- Cascade Topology 29
- Mesh Topology 30
- Multistage Topology 31
- Distance 32
- Performance 32
- Bandwidth 33
- Device Access 34
- Soft Zones 35
- Fabric Management 36
- Fabric Security 36
- Installation 37
- Environmental Conditions 38
- Installing a Switch 38
- Mount the Switch 39
- Install SFP Transceivers 40
- 4 – Installation 41
- 59042-00 A 4-5 41
- 4-6 59042-00 A 42
- Install SANbox Manager 43
- 4-8 59042-00 A 44
- 59042-00 A 4-9 45
- Ethernet Connection 47
- Serial Connection 47
- Set the Date 48
- Configure the Switch 49
- Configure the Ports 50
- Cable Devices to the Switch 50
- Loading Firmware 50
- 59042-00 A 4-15 51
- 4-16 59042-00 A 52
- 59042-00 A 4-17 53
- 4-18 59042-00 A 54
- Diagnostics/Troubleshooting 55
- Force PROM Mode Pattern 56
- Fatal Error Blink Pattern 56
- Logged-In LED Indications 57
- Chassis Diagnostics 59
- Fan Fail LED is Illuminated 60
- Recovering a Switch 60
- 59042-00 A 5-7 61
- 5-8 59042-00 A 62
- Specifications 63
- Switch Maintainability 64
- Switch Dimensions 65
- Switch Electrical 65
- Switch Environmental 65
- A – Specifications 66
- A-4 59042-00 A 66
- 59042-00 A A-5 67
- A-6 59042-00 A 68
- Command Line Interface 69
- Command Syntax 70
- Commands 71
- Admin Command 72
- Alias Command 73
- B-6 59042-00 A 74
- Config Command 75
- B-8 59042-00 A 76
- SANbox2 $> date 77
- Tue Jun 12 07:51:24 2001 77
- SANbox2 $> admin start 78
- SANbox2 $> admin end 78
- SANbox2 $> 78
- Help Command 79
- History Command 80
- Image Command 81
- SANbox2 (admin) #> lip 2 82
- Passwd Command 83
- Ps Command 84
- Quit Command 85
- Reset Command 86
- SANbox2 $> set alarm clear 90
- SANbox2 $> set beacon on 91
- Command succeeded 91
- SANbox2 $> set beacon off 91
- Set Config Command 92
- B-28 59042-00 A 96
- 59042-00 A B-29 97
- 59042-00 A B-31 99
- B – Command Line Interface 100
- Set Log Command 100
- B-32 59042-00 A 100
- Set Port Command 101
- Set Setup Command 102
- B-36 59042-00 A 104
- 59042-00 A B-37 105
- Set Switch Command 106
- Show Command 107
- 59042-00 A B-43 111
- B-44 59042-00 A 112
- 59042-00 A B-45 113
- B-46 59042-00 A 114
- 59042-00 A B-47 115
- Show Config Command 116
- 59042-00 A B-49 117
- SANbox2 $> show log level 118
- Show Log Command 119
- 59042-00 A B-51 119
- Show Perf Command 120
- Show Setup Command 121
- B-54 59042-00 A 122
- Shutdown Command 123
- Test Command 124
- 59042-00 A B-57 125
- SANbox2 $> uptime 126
- User Command 127
- B-60 59042-00 A 128
- SANbox2 $> whoami 129
- User name:admin@session2 129
- Switch name:SANbox2 129
- Switch domain ID:1 129
- Zone Command 130
- ■ Alias name 131
- B-64 59042-00 A 132
- Zoneset Command 133
- B-66 59042-00 A 134
- Zoning Command 135
- B-68 59042-00 A 136
- 59042-00 A B-69 137
- B-70 59042-00 A 138
- Glossary 139
- Glossary-2 59042-00 A 140
- 59042-00 A Glossary-3 141
- Glossary-4 59042-00 A 142
- 59042-00 A Index-1 143
- Index-2 59042-00 A 144
- 59042-00 A Index-3 145
- Index-4 59042-00 A 146
- 59042-00 A Index-5 147
- Index-6 59042-00 A 148
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