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Chapter 4 Troubleshooting
Basic Verification
90 Quantum TC2201E User’s Guide
• Cabling—Check SCSI cables to verify they are functional. SCSI rules
for total length, distance between devices, and stub length must be
adhered to. Connections should also be checked and reseated if
necessary.
• SCSI Devices—Verify that the SCSI devices on a particular SCSI Bus
can be seen in the by the TC2201E. Check the Discovery page to
verify visibility of devices. If the TC2201E can not see the devices,
verify SCSI configuration, cabling, and termination.
Even if the SCSI devices are displayed, they are not accessible unless the
mapping mode is auto-assigned or another non-empty map is used.
Verify iSCSI
Connection
4
If SCSI devices are recognized on the SCSI buses, but do not appear to the
iSCSI host, it may be that the iSCSI link is not properly established. Most
switches have link indicators, showing link status. When the TC2201E is
connected and powered-on, this link
indicator should show a good link. If it does not, check the cabling or
connections. As a means of verifying link integrity when connected to a
functional host, disconnecting then reconnecting the Ethernet cable
should cause momentary activity of this indicator as the link itself re
initializes. Also verify that the media type of the TC2201E and attached
switch are of corresponding types.
Verify SCSI
Devices in
Windows NT
4
Open the NT Control Panel, select “SCSI Adapters,” and double click on
the iSCSI HBA. The SCSI devices should be listed.
If no devices are listed, verify the TC2201E configuration, iSCSI HBA
configuration, and cabling.
If devices are listed, verify iSCSI HBA mapping mode and device
addresses on the TC2201E.
Verify
Configuration
4
A number of configuration changes may result in an invalid
configuration. If you are in doubt about the configuration, restore the
TC2201E to the factory default configuration and proceed to configure the
unit a step at a time, verifying the functionality of the configuration as
changes are made.
- 7&( 1
- Contents 3
- Chapter 2 Getting Started 11 4
- Chapter 4 Troubleshooting 87 5
- Glossary 173 7
- Introduction 21
- Operation Indicators 1 22
- How the TC2201E Works 1 23
- Processing SCSI Information 1 24
- LAN-free Backup and Restore 1 26
- TC2201E Features 1 26
- TC2201E Benefits 1 27
- TC2201E Benefits 28
- Chapter 1 Introduction 28
- TC2201E Specifications 1 29
- TC2201E Specifications 30
- Getting Started 31
- Location 2 32
- Unpacking the Box 2 32
- Chapter 2 Getting Started 33
- Figure 10 Attaching 35
- Figure 11 Mounting at 36
- Front of Rack 36
- Interfaces and Connections 2 37
- Interfaces and Connections 39
- Figure 15 iSCSI ports 39
- Figure 16 High 40
- Density SCSI Cables 40
- Figure 17 TC2201E 41
- SCSI connection 41
- Figure 18 TC2201E 42
- Ethernet port 42
- Figure 19 TC2201E 43
- Serial Port 43
- Configuring the TC2201E 2 45
- Configuring the TC2201E 46
- Submit button. The default 46
- Quantum Visual Manager 51
- Accessing Visual Manager 3 52
- Accessing Visual Manager 53
- Main Menu 3 56
- Figure 24 System 57
- Figure 25 Serial port 58
- Figure 26 iSCSI 59
- Settings Page 59
- Figure 28 iSNS 62
- Ethernet 69
- Figure 41 Discovery 81
- Figure 46 Utilities 88
- > FTP 89
- Figure 49 Advanced 93
- option 95
- Events Logged 99
- Main Menu > 100
- Utilities 100
- > Event 100
- Main Menu 102
- Figure 56 SCSI 102
- Command Tracking 102
- Troubleshooting 107
- Indicators 108
- Figure 60 TC2201E 108
- Chapter 4 Troubleshooting 108
- Basic Verification 4 109
- Basic Verification 110
- 3-Pin to DB-9 Serial Pin 113
- Assignments 113
- RJ-45 modular receptacle 116
- Inband SCSI-3 117
- Commands 117
- General Commands 2 118
- Inquiry Command2 119
- Vendor Unique Commands 2 122
- Using the Command Line 123
- Interface 123
- Power Up Messages 3 124
- Power Up Messages 125
- Table 10 Main menu 125
- Perform Configuration 3 126
- Perform Configuration 127
- Table 12 User 127
- Settings Configuration 127
- Table 15 Change 131
- DNS Settings Menu 131
- Table 16 iSCSI 132
- Configuration Menu 132
- Table 17 Authentication 133
- CHAP Records 133
- Table 19 iSCSI Portal 135
- Group Configuration 135
- Table 25 Select 143
- Current Map 143
- Table 26 Add a Map 144
- Table 29 Edit Map 146
- Table 32 Deleting an Entry 148
- Table 36 iSCSI Host 151
- Table 38 Adding a 153
- Table 39 Deleting a 154
- Mapping Main Menu’ 155
- Table 41 Utility 157
- Settings 157
- Table 42 Trace 158
- Table 43 Trace 159
- Settings, Page 2 159
- Table 44 Trace 160
- Settings, Page 3 160
- Table 45 Trace 161
- Settings, Page 4 161
- Table 46 Trace 162
- Settings, Page 5 162
- Table 47 Event Filter 163
- Table 48 System 164
- Clock Setup Menu 164
- System Utilities 3 165
- System Utilities 167
- Table 52 SCSI 167
- Device Display Menu 167
- Table 53 SCSI 168
- Resource Display 168
- Table 54 Event Log 169
- Reboot 3 172
- Table 58 Advanced 173
- Licensed Features 173
- Table 59 Download 174
- Firmware Menu 174
- Using the FTP Interface 175
- Update Firmware 4 179
- Update Firmware 180
- How to Change Block 181
- Figure 62 Registry 183
- Figure 63 Veritas 185
- Backup Exec 185
- Procedure E: Bakbone NetVault 186
- Figure 64 Netvault 187
- Device Management 187
- Procedure G: CommVault Galaxy 189
- Figure 65 HP Data 189
- Protector (Advanced 189
- Options) 189
- Figure 66 CommVault 190
- Figure 67 CommVault 191
- Galaxy (Advanced 191
- Glossary 193
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