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Software Overview
62 IP Storage Router SR2122-2 User Guide
Routing SCSI Requests and Responses
SCSI routing consists of routing SCSI requests and responses between hosts in an
IP network and FC storage.
Figure 32: Routing SCSI requests and responses for SCSI routing
Each host that requires IP access to storage via an IP Storage Router 2122-2 needs
to have a compatible iSCSI driver installed. Using the iSCSI protocol, the iSCSI
driver allows an IP host to transport SCSI requests and responses over an IP
network. From the perspective of a host operating system, the iSCSI drive appears
to be a locally attached SCSI or Fibre Channel drive to the host.
SCSI routing consists of the following main actions (see Figure 33):
■ Transporting SCSI requests and responses over an IP network between the
hosts and the SR2122-2
■ Routing SCSI requests and responses between hosts on an IP network and FC
storage
■ Transporting SCSI requests and responses between the SR2122-2 and FC
storage
IP hosts
IP
HP SR2122-2
SCSI requests and responses
FC storage
15022
- IP Storage Router 1
- Third Edition (December 2003) 2
- Part Number: 304835-003 2
- Contents 10
- About This 13
- About this Guide 13
- Overview 14
- Conventions 15
- Equipment Symbols 16
- Rack Stability 17
- Getting Help 18
- Product Overview 19
- Basic Description 20
- Port Descriptions 21
- 10/100 Ethernet HA Port 22
- Front-Panel LEDs 23
- LED Color Description 24
- Fan Assembly 25
- Power Supply 26
- Installation 27
- Site Planning 28
- Installing the Storage Router 28
- Figure 8: Rail assembly 31
- Installing SFP Modules 33
- SFP module 35
- Mylar Tab SFP Modules 36
- Actuator/Button SFP Modules 38
- from the port 39
- Bale Clasp SFP Modules 40
- To HA network 44
- To management 44
- Rollover cable 45
- RJ-45/DB-9 45
- Connecting Power 46
- Verifying Installation 47
- Where to Go Next 48
- Troubleshooting 49
- Identifying Startup Problems 51
- Contacting Customer Service 56
- Software Overview 57
- Storage Router Overview 58
- Figure 30: FCIP 59
- SCSI Routing Overview 61
- IP hosts 62
- HP SR2122-2 62
- SCSI requests and responses 62
- FC storage 62
- Basic Network Structure 63
- FCIP Overview 69
- Figure 37: FCIP actions 70
- SR2122-2 71
- Mixed Mode Overview 74
- VLAN Access Overview 75
- Authentication Overview 78
- Cluster Management Overview 79
- Interface Naming 80
- Configuring the Storage 81
- Connecting a Console 87
- Reference Guide 89
- Introducing the CLI 91
- Command Prompt 92
- Reserved Words 92
- Show CLI Command 92
- Special Keys 93
- Introducing the Web-Based GUI 94
- Monitor Mode 95
- Administrator Mode 95
- Menu Items and Links 95
- Configuring System 97
- Parameters 97
- Configuring System Parameters 100
- Configuring Time and Date 101
- Configuring IP Routes 102
- Configuring Passwords 105
- SSH Server Configuration 107
- Status: enabled 107
- Configuring VLAN 111
- Prerequisite Tasks 112
- VLAN Encapsulation 112
- Configuration Tasks 112
- Configuring for VLAN with VTP 114
- Configuring an IP Route 116
- Configuring SCSI Routing 119
- Without VLAN 125
- Configuring iSCSI Targets 126
- Configuring an Access List 129
- Configuring Access 132
- Specify that 133
- Configuring FCIP 137
- Creating an FCIP Instance 138
- Understanding Flow Control 139
- Understanding Error Recovery 139
- TCP Protocol 139
- Configuring Authentication 145
- Using iSCSI Authentication 146
- AAA Security Services 146
- Configuring Security Services 150
- TACACS+ Hosts 151
- Local Username Database 151
- Note: The first “ 152
- Testing iSCSI Authentication 154
- Enabling iSCSI Authentication 154
- Configuring a High 157
- Availability Cluster 157
- Changing Clusters 163
- Maintaining and Managing 165
- Installing Updated Software 166
- ■ Using HTTP 168
- ■ Using Proxy Services 168
- ■ Using TFTP 168
- Using HTTP 169
- Using Proxy Services 169
- Using TFTP 170
- Creating Local Backups 174
- Restoring from Backups 175
- Restoring an Access List 178
- Restoring VLANs 180
- Resetting the System 183
- Reset All to Factory Defaults 184
- Recovering Passwords 187
- Handling Failover 191
- Manual Failover 192
- Failover as Temporary Move 192
- Failover as Permanent Move 193
- Running Command Scripts 197
- Managing the Log File 198
- Clearing the Log Files 199
- Using the Crash Log 200
- Understanding Diagnostics 203
- Understanding Logging 204
- Facility Description 206
- 1 notice 5 SNMP all 207
- Using Debug Facilities 208
- Technical Specifications 209
- Specifications 210
- Cable and Port Pinouts 211
- RJ-45 connector pinouts 213
- Console Port 214
- Regulatory Compliance 217
- Class A Equipment 218
- Class B Equipment 218
- United States Only 219
- Modifications 219
- Mouse Compliance Statement 220
- European Union Notice 221
- Japanese Notice 221
- BSMI Notice 222
- Laser Device 222
- Laser Product Label 223
- Laser Information 223
- Regulatory Compliance Notices 224
- Electrostatic Discharge 225
- Grounding Methods 226
- Configurations 227
- Recommended Host/Storage 227
- FCIP Only 228
- FCIP with Local iSCSI Hosts 229
- FCIP with Remote iSCSI Hosts 230
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