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Silicon Graphics Fibre Channel Hub Owner's Manual

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Fibre Channel Hub
Owner's Guide
Document Number 007-3722-001

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Summary of Contents for Silicon Graphics Fibre Channel Hub

  • Page 1 Fibre Channel Hub Owner’s Guide Document Number 007-3722-001...
  • Page 2 © 1999, Silicon Graphics, Inc.— All Rights Reserved The contents of this document may not be copied or duplicated in any form, in whole or in part, without the prior written permission of Silicon Graphics, Inc. LIMITED AND RESTRICTED RIGHTS LEGEND Use, duplication, or disclosure by the Government is subject to restrictions as set forth in the Rights in Data clause at FAR 52.227-14 and/or in similar or successor...
  • Page 3 Attention This product requires the use of external shielded cables in order to maintain compliance pursuant to Part 15 of the FCC Rules. VDE 0871/6.78 This equipment has been tested to and is in compliance with the Level A limits per VDE 0871.
  • Page 4 Silicon Graphics, the Silicon Graphics logo, OCTANE, and IRIX are registered trademarks and Origin, Origin2000, Origin200, Onyx2, and IRIS FailSafe are trademarks of Silicon Graphics, Inc. Emulex is a trademark of Emulex Corporation. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.

  • Page 5: Table Of Contents

    Audience xiv Structure of This Document xiv Other Documentation xv Conventions xv Product Support xvi Features of the Fibre Channel Hub 1 Fibre Channel Hub Kit 2 Fibre Channel Hub Physical Features 3 Connectors and Ports 5 LEDs 7 Fibre Channel Hub Rackmounting Requirements 8...
  • Page 6 Fibre Channel Hub Setup and Cabling 27 Preparing and Setting Up the Hub 27 Cabling the Management Port 30 Cabling Servers, Workstations, and Storage to the Fibre Channel Hub 31 Cascading Two Hubs (Optional) 31 Using Copper Cabling 32 Using Fiber Optic Cabling 32...
  • Page 7 Setting the Administrative Password: Command-Line Interface 53 Setting the Administrative Password: Internet Browser Interface 54 Terminating the Connection 55 Fibre Channel Hub Operation and Management 57 Viewing Statistics 57 Viewing Hub and Port Statistics: Command-Line Interface 58 Viewing Port Statistics: Internet Browser Interface 62...
  • Page 8 Contents Technical Specifications 75 System Specifications 75 Interface Connector Pinouts 76 Factory Defaults 77 Command-Line Interface Summary 79 Setup Checklist 83 Index 85 viii...

  • Page 9: List Of Figures

    FC-HUB Kit Contents 2 Figure 1-1 Fibre Channel Hub, Desktop Use 3 Figure 1-2 Fibre Channel Rack: Rear View, With Two Fibre Channel Hub Units 4 Figure 1-3 Fibre Channel Hub Ports Figure 1-4 Fibre Channel Hub LEDs (Front Panel) 7...
  • Page 10 Port Setup Example 69 Figure 5-7 Bypassing Ports 70 Figure 5-8 Choosing Hub Advanced Setup 73 Figure 5-9 Advanced Setup Screen: Changing Autobypass Sample Count Figure 5-10 and Autobypass Threshold Count 74 Fibre Channel Hub DB-9 Pinout 76 Figure A-1...
  • Page 11 Fibre Channel Cabling Options: Codes and Part Numbers 10 Table 1-4 LED Activity at Hub Power-On 35 Table 3-1 Commands for Obtaining Parameters 58 Table 5-1 Fibre Channel Hub Physical Specifications 75 Table A-1 Copper Connector Specifications 76 Table A-2 Console (Serial) RJ11 Connector Specifications 77 Table A-3...

  • Page 13: About This Guide

    About This Guide The Silicon Graphics Fibre Channel Hub is an intelligent digital hub for fibre channel arbitrated loop (FC-AL) storage clusters, including Storage Area Networks (SANs) and IRIS FailSafe 2.0. The hub provides gigabit-speed storage connectivity, network management, data reliability, and module network scalability for configurations using Silicon Graphics Origin FibreVault and Fibre Channel RAID storage systems.

  • Page 14: Audience

    About This Guide Audience This guide is written for owners and users of a Fibre Channel Hub. It presumes general knowledge of FC-AL technology and familiarity with the fibre channel storage and the servers and workstations being used. Structure of This Document This guide consists of the following chapters and appendixes: •...

  • Page 15: Other Documentation

    About This Guide Other Documentation Besides this manual, have handy the latest versions of the owner’s guides for the Silicon Graphics servers, workstations, fibre channel interface boards, and fibre channel storage in your configuration. If you do not have these guides handy, the information is also online in the following locations: •...

  • Page 16: Product Support

    Silicon Graphics subsidiary or authorized distributor in your country. In the unlikely event that your Fibre Channel Hub needs service, you need the revision number that is on the product ID label on the bottom of the case. This number has the form FC HUB-Revletter;...

  • Page 17: Features Of The Fibre Channel Hub

    Chapter 1 Features of the Fibre Channel Hub The Fibre Channel Hub is a managed 10-port gigabit interface hub for Silicon Graphics FibreVault or fibre channel arbitrated loop (FC-AL) storage clusters or networks, whether RAID or non-RAID (JBOD, or “just a bunch of disks”).

  • Page 18: Fibre Channel Hub Kit

    Chapter 1: Features of the Fibre Channel Hub Fibre Channel Hub Kit The Fibre Channel Hub option kit (FC-HUB) contains the following: • Fibre Channel Hub • four hub feet on peel-off backing • standard power cord This power cord accommodates United States power outlets only.

  • Page 19: Fibre Channel Hub Physical Features

    Appendix C contains a checklist for setting up the hub, with references to specific parts of this guide. Fibre Channel Hub Physical Features Figure 1-2 shows the Fibre Channel Hub in a typical application. Figure 1-2 Fibre Channel Hub, Desktop Use...

  • Page 20: Figure 1-3 Fibre Channel Rack: Rear View, With Two Fibre Channel Hub Units

    Chapter 1: Features of the Fibre Channel Hub The Fibre Channel Hub can be used as a desktop unit or can be mounted in a Silicon Graphics Fibre Channel Rack that is not fully configured, or in a third-party standard 19-inch rack (such as a rack used for networking equipment) using the optional rackmounting kit.

  • Page 21: Connectors And Ports

    This connector is autoranging. A power on/off switch is located above the power cord socket on the Fibre Channel Hub, as shown in Figure 1-4. See “System Specifications” on page 75 in Appendix A for voltage and power requirements.

  • Page 22: Figure 1-4 Fibre Channel Hub Ports

    Chapter 1: Features of the Fibre Channel Hub Figure 1-4 points out the connectors and ports. Fibre channel ports Ethernet port Front panel REAR Console port (serial) Fibre channel ports Fibre channel port 5 On/off switch Rear panel Power connector...

  • Page 23: Leds

    Fibre Channel Hub Physical Features LEDs On the Fibre Channel Hub front panel are LEDs for each port and for the Ethernet port and network connections. Figure 1-5 points out the LEDs. FC port LEDs Power LED Network LED REAR...

  • Page 24: Fibre Channel Hub Rackmounting Requirements

    Origin Rack. Fibre Channel Hub height is 4.3 cm, or 1.69 inches. The shelf and hub(s) fit in a 1U space (4.45 cm, or 1.75 inches). However, if cabling is routed across the top of the hub(s), an...

  • Page 25: Compatibilities, Fibre Channel Cables, And Adapters

    Compatibilities, Fibre Channel Cables, and Adapters cabling. Thus the total space required for the Fibre Channel Hub in a rack can be as much as 3U (13.35 cm, or 5.25 inches). A special power cord is included in the rackmount kit for connection to the Fibre Channel Rack power distribution unit (PDU).

  • Page 26: Fibre Channel Cabling Options For The Hub

    Distances longer than 300 m require special MIAs and special cables. MIAs are described in “Media Interface Adapter (MIA)” on page 11. It is recommended that you use fibre channel cabling from Silicon Graphics for the Fibre Channel Hub. Table 1-4 summarizes fibre channel interface cables currently available from Silicon Graphics that are compatible with the Fibre Channel Hub.

  • Page 27: Media Interface Adapter (Mia)

    At the other end of the fibre optic cable, another MIA converts the signal back to a differential electrical signal for the system to which it is attached. It is recommended that you use MIAs from Silicon Graphics for fibre optic cabling Note:...

  • Page 28: Fault And Error Management

    Chapter 1: Features of the Fibre Channel Hub Fault and Error Management The digital architecture of the Fibre Channel Hub eliminates all signal jitter and provides automatic clock speed matching on every port. As a result, two hubs can be cascaded, providing flexibility in network design and extending potential cabling distances.

  • Page 29: Automatic Loop Reconfiguration

    F8) is received. Loop Management Software The Fibre Channel Hub software provides statistics for each port detailing the number of invalid transmission words, comparative error rates, and port down counts. You can use the management tools to reconfigure the loop remotely to optimize performance or to diagnose and isolate failures.
  • Page 30 Chapter 1: Features of the Fibre Channel Hub You can manage the hub: • locally through an ANSI console terminal, or a PC with a serial port; details are in “Determining Hub Management” on page 24 in Chapter 2 •...

  • Page 31: Loop Configuration With The Fibre Channel Hub

    Two Fibre Channel Hubs can be connected (cascaded) to create a larger single loop. • dual-loop: two Fibre Channel Hubs One Fibre Channel Hub can be used for two separate loops. This section gives configuration overviews and planning considerations, in these subsections: •...

  • Page 32: Single-Loop Configuration

    Chapter 2: Loop Configuration With the Fibre Channel Hub Single-Loop Configuration A single Fibre Channel Hub accommodates up to ten devices. Note the following: • All ports function the same way. • Devices need not be cabled to adjacent ports; that is, you can skip ports when attaching cables.
  • Page 33 Fibre Channel Hub Configurations and Applications Node 1 Fibre Channel RAID SP A Node 4 Fibre Channel Hub Node 2 Node 3 Figure 2-2 Single-Loop Configuration Example, Fibre Channel RAID Storage...

  • Page 34: Dual-Loop Configuration

    Dual-Loop Configurations With Fibre Channel RAID Storage Figure 2-3 You can connect the Fibre Channel Hub to either port in an SP. Both SP ports in a Fibre Channel RAID DPE cannot be connected to the same hub. Figure 2-4 shows an example of Fibre Channel Hub cabling with one storage unit and...

  • Page 35: Figure 2-4 Dual-Loop Configuration Example, Fibre Channel Raid Storage

    Fibre Channel Hub Configurations and Applications Fibre Channel RAID SP B SP A Fibre Channel Hub R EA Fibre Channel Hub R EA Node 3 Node 1 Node 2 Node 4 Figure 2-4 Dual-Loop Configuration Example, Fibre Channel RAID Storage...

  • Page 36: Figure 2-5 Dual-Loop Configurations With Jbod Storage

    Dual-Loop Configurations With JBOD Storage Figure 2-5 You can connect the Fibre Channel Hub to either LCC. Both LCCs in a Fibre Channel RAID DAE cannot be connected to the same hub. Figure 2-6 diagrams an example dual-loop configuration with JBOD storage.
  • Page 37 Fibre Channel Hub Configurations and Applications Figure 2-6 Dual-Loop Configuration Example, JBOD Storage...

  • Page 38: Cascaded Hubs

    IP address. Hub Segmentation Under normal operation, the Fibre Channel Hub acts as a single loop. For dual-loop configurations, two hubs are recommended. The Fibre Channel Hub is designed as a precise half-rack chassis so that two hubs can be installed in a single 1U-to-3U rack space, providing full redundance.

  • Page 39: Planning Loop Configuration

    3. Determine the order in which you want to cable devices to the hub. You can skip ports when you attach cables to the hub. Fibre Channel Hub ports are numbered as shown on the front panel, with ports 5 and 10 on the rear; see Figure 2-1.

  • Page 40: Determining Hub Management

    Chapter 2: Loop Configuration With the Fibre Channel Hub Determining Hub Management Follow these guidelines for planning hub management: 1. Determine how the hub is to be managed: • locally: ANSI console terminal, or a PC with a serial port If you use a PC, its serial port must support 9600 bps, 8 data bits, Xon/Xoff flow...

  • Page 41: Selecting A Spot For The Hub

    Selecting a Spot for the Hub Selecting a Spot for the Hub Select a spot for the FIbre Channel Hub that is close to an electrical outlet and to the servers and storage that are to be cabled to the hub. Follow these guidelines: •...

  • Page 43: Fibre Channel Hub Setup And Cabling

    • “Cabling the Management Port” on page 30 • “Cabling Servers, Workstations, and Storage to the Fibre Channel Hub” on page 31 • “Connecting the Hub Power Cord and Powering On the Loop” on page 34 Appendix C contains a checklist for setting up the hub, with references to specific Note: parts of this guide.

  • Page 44: Figure 3-1 Attaching Feet

    A qualified Silicon Graphics Systems Support Engineer installs the hub in a rack. 4. Set up the Fibre Channel Hub in the spot you have selected; see “Selecting a Spot for the Hub” on page 25 in Chapter 2.

  • Page 45: Figure 3-2 Attaching The Power Cord

    Preparing and Setting Up the Hub 5. Attach the power cord to the socket on the rear of the hub, as shown in Figure 3-2. Figure 3-2 Attaching the Power Cord Do not power on the hub at this time; leave the power switch in the off position.

  • Page 46: Cabling The Management Port

    Chapter 3: Fibre Channel Hub Setup and Cabling Cabling the Management Port For a 10-Base-T Ethernet connection, insert an Ethernet cable into the port at the upper right of the front panel; see Figure 3-3. Ethernet port Figure 3-3 Cabling the Ethernet Port Alternatively, connect the hub to an ANSI console terminal or to the serial (console) port of a PC;...

  • Page 47: Cabling Servers, Workstations, And Storage To The Fibre Channel Hub

    Note the following: • Only one port of a Fibre Channel Hub can be cabled to a storage processor (SP) in a Fibre Channel RAID unit. That is, one port of a Fibre Channel Hub can be cabled to either the A or B port of a Fibre Channel RAID SP.

  • Page 48: Using Copper Cabling

    Chapter 3: Fibre Channel Hub Setup and Cabling Using Copper Cabling Follow these steps to cable the servers and storage to the hub with copper cabling: 1. Power off the servers and workstations (FC-AL nodes) that are to be connected to the hub, following procedures in the manuals for those systems.

  • Page 49: Figure 3-6 Media Interface Adapter (Mia) For Optical Fibre Channel Cables

    Cabling Servers, Workstations, and Storage to the Fibre Channel Hub Figure 3-6 shows the MIA and an optical cable connector. Figure 3-6 Media Interface Adapter (MIA) for Optical Fibre Channel Cables Make sure the cable connectors are completely inserted into the sockets on the MIA.

  • Page 50: Connecting The Hub Power Cord And Powering On The Loop

    Connecting the Hub Power Cord and Powering On the Loop Follow these steps: 1. Connect the Fibre Channel Hub power cord(s) to a power source. 2. Turn on the Fibre Channel Hub power switch(es). On the hub(s): The green power LED at the top left of the Ethernet port should illuminate.

  • Page 51: Table 3-1 Led Activity At Hub Power-On

    Connecting the Hub Power Cord and Powering On the Loop Table 3-1 outlines LED activity when the hub is powered on. Table 3-1 LED Activity at Hub Power-On Purpose Location Color or State Meaning Power Left of 10-Base-T socket; top Power is applied (green) Network...

  • Page 53: Setting Up Local Or Remote Hub Management

    Chapter 4 Setting Up Local or Remote Hub Management You can communicate with the Fibre Channel Hub via a terminal or PC connected to it, or remotely. This chapter explains • “Setting Up Local Communication With the Hub” on page 37 •...

  • Page 54: Logging In Via A Console Terminal

    Chapter 4: Setting Up Local or Remote Hub Management Logging In via a Console Terminal To log in via a console, follow these steps: 1. Verify that the following software is installed on the system and configured correctly: • eoe.sw.uucp •...

  • Page 55: Using Terminal Emulation

    “Changing TCP/IP Settings” on page 44. Setting Up Remote Communication for Hub Management This section explains how to set up remote communication—Telnet or Internet browser—for Fibre Channel Hub management. It consists of the following: • “Preparation” on page 39 •...

  • Page 56: Remote Communication Setup: Command-Line Interface

    Note: communication as explained in “Logging In via a Console Terminal” on page 38. To use the command-line interface to log in remotely to the Fibre Channel hub, follow these steps: 1. Obtain a unique IP address; to verify that it is available, enter: % ping ipaddress where ipaddress is the IP address as assigned by the network administrator.

  • Page 57: Starting The Internet Browser Interface

    Setting Up Remote Communication for Hub Management Starting the Internet Browser Interface To use the Internet browser interface to log in remotely to the Fibre Channel Hub, start the Internet browser interface: for the URL, enter , followed by one of the these...

  • Page 58: Figure 4-1 Internet Browser: Hub Port Status Screen

    Chapter 4: Setting Up Local or Remote Hub Management Fibre Channel Hub clickable panel diagram (hub map) Menu bar (navigation bar) Figure 4-1 Internet Browser: Hub Port Status Screen...

  • Page 59: Telnet Login

    Setting Up Remote Communication for Hub Management Telnet Login Use this procedure to connect to a Fibre Channel Hub from a workstation with Telnet. Follow these steps: 1. Make sure that the workstation is on the same LAN segment as the hub. If it is not, define a subnet mask and default gateway, as explained in “Changing TCP/IP...

  • Page 60: Obtaining Privileged Status

    Fibre Channel Hub configuration. Most commands in this chapter require privileged status. To obtain administrator privilege, follow these steps: 1. Make a connection to the Fibre Channel Hub. The prompt appears, indicating normal privilege: Server> 2. To gain administrator privilege, enter Server>...
  • Page 61 Changing TCP/IP Settings To enable or disable TCP/IP on the hub manager, a user with administrator privilege enters enable disable Server>>define server authorize protocol tcp [ If you disable TCP, you can manage the hub only via local communication. To change the hub’s IP address, a user with administrator privilege enters Server>>change server ip ipaddress where ipaddress is the address assigned by the network administrator.

  • Page 62: Changing Tcp/Ip Settings: Internet Browser Interface

    2. Click Hub Setup; the Hub Setup menu appears, as shown in Figure 4-3. Figure 4-3 Hub Setup Menu Note: Do not use the Manager upgrade option in the GUI. Obtain firmware upgrades only from your Silicon Graphics service provider; only these have been tested for compatibility with Silicon Graphics fibre channel equipment.

  • Page 63: Figure 4-4 Hub Setup: Tcp

    Changing TCP/IP Settings 3. Select TCP Setup; Figure 4-4 shows the screen that appears. Figure 4-4 Hub Setup: TCP The default settings in this screen are recommended; do not change these Note: values unless you have good reason to do so. Enter the IP address, and, if applicable, subnet mask and gateway address.

  • Page 64: Setting Bootp, Dhcp, And Rarp Parameters

    Chapter 4: Setting Up Local or Remote Hub Management 6. In the prompt window that appears, enter a username, a user ID (such as su), and the password (the default is system). Click OK. The changes take several minutes to go into effect. When the process is complete, a message flashes near the top of the window: CHANGED AS REQUESTED...

  • Page 65: Setting Bootp, Dhcp, And Rarp Parameters: Internet Browser Interface

    Setting BootP, DHCP, and RARP Parameters where Is the number of broadcast requests between 0 (the default) and 7 to be made if the digital hub IP address is not known. This option prevents the use of automatic IP address assignment. Is the number of broadcast attempts to make if the hub IP address is known.

  • Page 66: Enabling And Disabling Connections

    Chapter 4: Setting Up Local or Remote Hub Management Enabling and Disabling Connections A user with administrator privilege can enable or disable the Internet browser connection to the hub as follows: enabled disabled Server>>change service http connections [ To enable or disable the connection to the hub through Telnet, enter enabled disabled Server>>change service telnet connections [...

  • Page 67: Figure 4-5 Power Led

    Segmenting and Unsegmenting the Hub When you segment the hub (disable the factory default ten-port functionality), the green power LED at the top left of the Ethernet socket on the hub’s front panel blinks at high intensity. At low intensity, this LED indicates that the hub is powered on. Figure 4-5 points out this LED.

  • Page 68: Segmenting And Unsegmenting The Hub: Internet Browser Interface

    Chapter 4: Setting Up Local or Remote Hub Management Segmenting and Unsegmenting the Hub: Internet Browser Interface To use the Internet browser interface to split the hub into two five-port hubs, select Setup in the menu bar and click Hub Setup. Figure 4-6 shows the Digital Hub setup screen that appears.

  • Page 69: Setting Passwords

    The characters you type do not echo to the screen. Setting the Administrative Password: Command-Line Interface The default administrative (administrator superuser, or read/write) password controls which users can change the Fibre Channel Hub manager configuration. The factory default for this password is . To change it, follow these steps: system 1.

  • Page 70: Setting The Administrative Password: Internet Browser Interface

    Chapter 4: Setting Up Local or Remote Hub Management 2. The prompt changes; enter the new password: Privileged Password> newpassword where newpassword is a string of 0 to 16 letters or numerals, in any combination. If you do not enter any letters or numerals, the password remains set to the default. The characters you type do not echo to the screen.

  • Page 71: Terminating The Connection

    Terminating the Connection Terminating the Connection To terminate the local or remote connection with the hub, enter Server> logout or, with privileged status, enter Server>>logout To kill the cu command, type a tilde and a period: % ~. If you kill the cu command without first logging out at the prompt, when Note: Server...

  • Page 73: Fibre Channel Hub Operation And Management

    Chapter 5 Fibre Channel Hub Operation and Management This chapter explains • “Viewing Statistics” on page 57 • “Bypassing Ports” on page 66 • “Changing Interval and Threshold Settings” on page 72 • “Renaming the Hub Manager” on page 74 Viewing Statistics This section explains how to display configuration and operation parameters and...

  • Page 74: Viewing Hub And Port Statistics: Command-Line Interface

    Chapter 5: Fibre Channel Hub Operation and Management Viewing Hub and Port Statistics: Command-Line Interface Table 5-1 gives commands for displaying parameters. Any user can enter these commands, except for zero all, which requires privileged status. Table 5-1 Commands for Obtaining Parameters...
  • Page 75 Viewing Statistics Port Status: 1 active 6 auto bypass 2 active 7 active 3 active 8 active 4 active 9 active 5 active 10 active ----------------------------------------------------------------------- The following is example output for the show hub ports command. - Current Hub Port Status --------------------------------------------- Port Status LIP F8 AutoLIP...
  • Page 76 Chapter 5: Fibre Channel Hub Operation and Management The following is example output for the show server command. Server Information Product: HUB Manager Hardware: A.41 Firmware: (SL) 5.01n5 980810 Software: 980915 Console Port: 2 Load Type: Selfload Uptime: 184199 (2 03:09:59) The following is example output for the show server config command.
  • Page 77 Viewing Statistics Transparent Gateway Type: softcopy Access: virtual Remote Console Type: ansi Access: remote Service Configuration Name: http Port(s): 3 Protocol(s): TCP Queueing: enabled Connections: enabled Password: disabled Telnet: disabled Filter: disabled TCP Port: 80 Name: telnet Port(s): 4 Protocol(s): TCP Queueing: disabled Connections: enabled Password: disabled...

  • Page 78: Viewing Port Statistics: Internet Browser Interface

    Chapter 5: Fibre Channel Hub Operation and Management Viewing Port Statistics: Internet Browser Interface The Hub Manager Internet browser screen displays hub port statistics; Figure 5-1 shows an example. Fibre Channel Hub clickable panel diagram (hub map) Figure 5-1 Internet Browser Status Screen...

  • Page 79: Figure 5-2 Hub Port Detailed Status Screen Example

    Viewing Statistics To view statistics for a particular port, click on the port or its LED in the hub map, or click on the entry for the port in the Status column. Figure 5-2 shows an example. Figure 5-2 Hub Port Detailed Status Screen Example The default settings in this screen are the recommended settings.

  • Page 80: Viewing Hub Statistics: Internet Browser Interface

    Chapter 5: Fibre Channel Hub Operation and Management • Counts: – Error Count is the number of invalid transmission words received on this port. – Bypass Count is the number of times the port was automatically bypassed. – Elapsed Time is the time since the last port counter reset.

  • Page 81: Figure 5-4 Hub Manager Diagnostic Information Example

    Viewing Statistics To display more detailed hub manager information, follow these steps: 1. In the Hub Port Status (Figure 5-2) or Digital Hub Properties screen (Figure 5-3), click Help in the menu bar. 2. In the help window that appears, click Hub Manager Diagnostic Information. (Scroll down if necessary.) Figure 5-4 shows an example of the screen that is displayed.

  • Page 82: Bypassing Ports

    Chapter 5: Fibre Channel Hub Operation and Management Bypassing Ports The Fibre Channel Hub bypasses a port automatically when it receives three consecutive LIP F8 sequences from the port. This sequence is generated when the port does not receive a valid signal from the device cabled to the port, such as when a cable is replaced or a device is disconnected for routine maintenance.

  • Page 83: Bypassing Ports: Internet Browser Interface

    Bypassing Ports The following example bypasses all ports: Server>>change hub port all bypass enable To disable the bypass and return the port(s) to the loop, a user with administrator privilege enters Server>>change hub port [port| ] bypass disable The following example disables the bypass and returns all ports to the loop: Server>>change hub port all bypass disable When a port generates three LIP F8 sequences, it is automatically bypassed by Note:...

  • Page 84: Figure 5-5 Hub Port Selection

    Chapter 5: Fibre Channel Hub Operation and Management Figure 5-5 Hub Port Selection All three methods display the Detailed Status screen for the port (see Figure 5-6). Figure 5-6 Hub Port Status Screen...

  • Page 85: Figure 5-7 Port Setup Example

    Bypassing Ports 2. Click Port Setup at the lower left to display the Port Setup screen for the port you have chosen; Figure 5-7 shows an example. Figure 5-7 Port Setup Example 3. To bypass the port, click the top check box; click Apply. 4.

  • Page 86: Figure 5-8 Bypassing Ports

    Chapter 5: Fibre Channel Hub Operation and Management To use the Internet browser interface to force-bypass all ports, follow these steps: 1. In the Hub Port Status screen, click Setup, and then click Hub Setup. Figure 5-8 shows the Digital Hub Setup screen.

  • Page 87: Changing Lip F8 And Lip F7 Settings

    Bypassing Ports Changing LIP F8 and LIP F7 Settings To use the command-line interface to bypass a port when a LIP F8 error is generated, a user with administrator privilege enters Server>>change hub port [port| ] lipf8 enable This setting is the factory default. To disable the LIP F8 bypass and return the port to the loop, a user with administrator privilege enters Server>>change hub port [port|...

  • Page 88: Changing Interval And Threshold Settings

    Chapter 5: Fibre Channel Hub Operation and Management Changing Interval and Threshold Settings An interval is the measure of time—24 microseconds—that is examined for errors. The default interval value is set at 10 (240 microseconds), but you can change it to any value from 1 to 15.

  • Page 89: Changing Interval And Threshold Settings: Internet Browser Interface

    Changing Interval and Threshold Settings Changing Interval and Threshold Settings: Internet Browser Interface To use the Internet browser interface to change the autobypass sample count or autobypass threshold count, click Setup in the menu bar, and then click Hub Setup. In the Digital Hub setup screen that appears, click Hub Advanced Setup at the bottom of the screen;...

  • Page 90: Renaming The Hub Manager

    Chapter 5: Fibre Channel Hub Operation and Management In the Hub Advanced Setup screen that appears, set the autobypass sample count, the autobypass threshold count, or both; Figure 5-10 shows an example. Figure 5-10 Advanced Setup Screen: Changing Autobypass Sample Count and Autobypass Threshold Count When the settings are the way you want them, click Apply.

  • Page 91: Technical Specifications

    Appendix A Technical Specifications This appendix summarizes technical data for the Fibre Channel Hub: • “System Specifications” on page 75 • “Interface Connector Pinouts” on page 76 • “Factory Defaults” on page 77 System Specifications Table A-1 summarizes Fibre Channel Hub physical specifications.

  • Page 92: Interface Connector Pinouts

    Pin 1: TX+ Pin 9: RX- Pin 8: Gnd Pin 6: TX- Pin 7: Gnd Figure A-1 Fibre Channel Hub DB-9 Pinout Table A-2 lists Fibre Channel Hub copper connector specifications. Table A-2 Copper Connector Specifications Signal Direction Output MIA power supply...

  • Page 93: Factory Defaults

    Factory Defaults At the right on the front panel of the Fibre Channel Hub is an RJ11 port for communicating with the system console. Table A-3 shows specifications for this connector. Table A-3 Console (Serial) RJ11 Connector Specifications Signal Description...
  • Page 94 Appendix A: Technical Specifications Table A-4 (continued) Fibre Channel Hub Factory Defaults Specification Value Autobypass port on LIP F8 detection Enabled LIP F7 on port insertion Enabled Interval Threshold HTTP connections Enabled Telnet connections Enabled Protocol TCP enabled...

  • Page 95: Command-Line Interface Summary

    Appendix B Command-Line Interface Summary This appendix summarizes commands in the command-line interface. Table B-1 lists commands alphabetically. All commands require privileged status unless noted otherwise. Table B-1 Command-Line Interface Command Purpose enable disable enable change hub cascade [ Sets port configuration to one ten-port hub ( , the default) or two five-port hubs.
  • Page 96 Appendix B: Command-Line Interface Summary Table B-1 (continued) Command-Line Interface Command Purpose change server login password Changes the default password (access) for remote Telnet and rcf access. change server privilege password Changes the default administrator password (system). change server subnet subnetmask Defines the subnet mask, which must be entered in decimal dot notation;...
  • Page 97 Table B-1 (continued) Command-Line Interface Command Purpose init Reboots the hub; breaks Telnet connection. logout Terminates the local or remote connection to the hub. ping ipaddress Tests if a local or remote IP address exists and is responding. show hub Displays configuration parameters for the hub;...

  • Page 99: Setup Checklist

    Appendix C Setup Checklist This appendix consists of a checklist for setting up the Fibre Channel Hub for desktop use. Table C-1 Hub Setup Checklist Step Explained In Check contents of shipment. “Fibre Channel Hub Kit” on page 2 Determine how the hub is to be managed; determine nodes Chapter 2 to be cabled to the hub;...

  • Page 101: Index

    Index Numbers fibre channel connecting 32-33 19-inch rack part numbers cabling cascaded hubs Ethernet port fibre channel port 31-33 administrator password copper cables airflow fiber optic cables 32-33 limit ANSI standard management port AutoLIP routing space requirements See also LIP F7. serial port automatic loop reconfiguration cascade...
  • Page 102 fibre channel requirements port See also management, local; serial. numbering conventions order pinout killing storage software and Fibre Channel Hub Fibre Channel Rack hub power cord Fibre Channel RAID cabling limit 18, 31 defaults, factory firmware DHCP setting 47, 48-49...
  • Page 103 Index logging in console terminal 38, 55 interfaces 13-14 Telnet terminal emulation Internet browser connection, disabling and enabling logging out starting 41-42 login password loop initialization procedure. See LIP F7, LIP F8. interval changing setting 72-74 default IP address assigning MAC address changing 45, 47...
  • Page 104 5, 6 obtaining required for some commands operating humidity product support temperature 25, 75 protocol, default Origin Rack, use with Fibre Channel Hub rackmounting password and feet administrator default marketing code remote login requirements setting 53-54...
  • Page 105 Index pinout specifications software, loop management 13-14 statistics, viewing 58-65 storage temperature subnet changing mask 45, 47 recommended TCP/IP settings, changing 44-48 technical support Telnet connection, disabling and enabling number, default temperature operating 25, 75 storage threshold changing setting 72-74 default voltage 25, 75...
  • Page 108 Tell Us About This Manual As a user of Silicon Graphics products, you can help us to better understand your needs and to improve the quality of our documentation. Any information that you provide will be useful. Here is a list of suggested topics: •...

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