Compaq StorageWorks 4000 - RAID Array Troubleshooting Manual
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Compaq StorageWorks 4000 - RAID Array Troubleshooting Manual

Compaq StorageWorks 4000 - RAID Array Troubleshooting Manual

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Fibre Channel

Troubleshooting Guide
Sixth Edition (January 2000)
Part Number 297877-006
Compaq Computer Corporation

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  • Page 1: Fibre Channel

    Fibre Channel Troubleshooting Guide Sixth Edition (January 2000) Part Number 297877-006 Compaq Computer Corporation...
  • Page 2 PARTICULAR PURPOSE, GOOD TITLE AND AGAINST INFRINGEMENT. This publication contains information protected by copyright. No part of this publication may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation. © 2000 Compaq Computer Corporation.

  • Page 3: Table Of Contents

    Chapter 1 Introduction Fibre Channel Arbitrated Loop Components in a Primary Storage System .....1-2 Compaq StorageWorks RAID Array 4000 System with Redundant Components...1-3 Fibre Channel Host Bus Adapter/P ..............1-4 Fibre Channel Host Bus Adapter/E ..............1-5 64-Bit/66-MHz Fibre Channel Host Adapter ............1-6 RA4000 Controller....................1-7...
  • Page 4 Compaq Fibre Channel Backup Diagnostics for Windows NT........3-2 Installing Compaq Fibre Channel Diagnostics for Windows CE ......3-3 Installing Compaq Fibre Channel Diagnostics for Windows 95 or 98 .....3-4 Installing Compaq Fibre Channel Backup Diagnostics for Windows NT ....3-4 Chapter 4 StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts Overview of the Troubleshooting Flow Charts ............4-2...
  • Page 5 About This Guide v Appendix A Primary and Secondary Storage System LEDs Fibre Channel Host Bus Adapters ................A-1 RA4000 Controller ....................A-2 Storage Hub 7......................A-3 Storage Hub 12......................A-4 Fibre Channel Tape Controller ................A-6 Fibre Channel Tape Controller II ................A-7 Appendix B GBIC and Fibre Channel Cable Connector Cleaning Considerations Index...

  • Page 6: About This Guide

    NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information. Compaq Technician Notes WARNING: Only authorized technicians trained by Compaq should attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair.

  • Page 7: Where To Go For Additional Help

    Compaq StorageWorks Fibre Channel Troubleshooting Guide WARNING: To reduce the risk of personal injury from electrical shock and hazardous energy levels, do not exceed the level of repair specified in these procedures. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or to make modifications to any printed wiring board.

  • Page 8: Telephone Numbers

    For the name of your nearest Compaq Authorized Reseller: In the United States, call 1-800-345-1518 In Canada, call 1-800-263-5868 For Compaq technical support: In the United States and Canada, call 1-800-386-2172 For Compaq technical support phone numbers outside the United States and Canada, visit the Compaq website: http://www.compaq.com.

  • Page 9: Introduction

    Fibre Channel Arbitrated Loop (FC-AL). The Compaq Fibre Channel Fault Isolation Utility is used to verify the installation and operation of a new or existing FC-AL. The Fibre Channel Fault Isolation Utility displays all devices that are logged on the FC-AL properly and tests for link errors within the FC-AL.

  • Page 10: Fibre Channel Host Bus Adapters

    One to eight Fibre Channel Host Bus Adapters (PCI) per server At least one Storage Hub 7 or Storage Hub 12 At least one Compaq RA4000 consisting of at least one RA4000 Controller and several hot-pluggable SCSI hard drives Two longwave or shortwave GigaBit Interface Converter (GBIC) modules per Fibre Channel cable link Multi-mode or single mode Fibre Channel cables.

  • Page 11: Compaq Storageworks Raid Array 4000 System With Redundant Components

    Two Fibre Channel Host Bus Adapters (PCI only) Two storage hubs (7 or 12) At least one Compaq RA4000 consisting of two RA4000 Controllers and several hot- pluggable SCSI hard drives Two longwave or shortwave GigaBit Interface Converter (GBIC) modules per Fibre Channel cable link Multi-mode or single mode Fibre Channel cables.

  • Page 12: Storage Hub 7

    1-4 Compaq StorageWorks Fibre Channel Troubleshooting Guide Table 1-2 Fibre Channel Primary Storage System with Two RA4000s Reference Component RA4000 Controller RA4000 GigaBit Interface Converters Fibre Channel Host Bus Adapter Fibre Channel Storage Hub 7 or 12 Server Fibre Channel Host Bus Adapter/P The Fibre Channel Host Bus Adapter/P is installed in a server with a Peripheral Component Interconnect (PCI) local bus.

  • Page 13: Fibre Channel Host Bus Adapter/E

    Introduction 1-5 Fibre Channel Host Bus Adapter/E The Fibre Channel Host Bus Adapter/E was designed for use in a server equipped with the EISA expansion bus. The Fibre Channel Host Bus Adapter/E, under the control of the operating system and dedicated device drivers, provides an interface between the EISA bus in the server and a (FC-AL).

  • Page 14: 64-Bit/66-Mhz Fibre Channel Host Adapter

    1-6 Compaq StorageWorks Fibre Channel Troubleshooting Guide 64-Bit/66-MHz Fibre Channel Host Adapter The 64-Bit/66-MHz Fibre Channel Host Adapter is installed in a server with a PCI local bus and provides an interface between the PCI bus in the server and Fibre Channel-connected external storage systems.

  • Page 15: Ra4000 Controller

    Introduction 1-7 RA4000 Controller The RA4000 Controller is a drive array controller designed to be installed in the Compaq StorageWorks RA4000 and RA4100. The RA4000 Controller supports Fast-SCSI-2, Fast-Wide SCSI-2, or Wide-Ultra SCSI-3 hot-pluggable hard drives. The RA4000 comes equipped with one RA4000 Controller installed.

  • Page 16: Storage Hub 12

    1-8 Compaq StorageWorks Fibre Channel Troubleshooting Guide Storage Hub 7 The Compaq Fibre Channel Storage Hub 7 functions as the central point of interconnect for the FC-AL. The Storage Hub 7 has seven I/O ports located on the rear of the unit.

  • Page 17: Storage Hub 12

    Hub 12 will automatically test the new device and accept it into the FC-AL. Faulty devices will be dropped by the Storage Hub 12 and dynamic node addressing will maintain the overall FC-AL integrity. Figure 1-8. Compaq Fibre Channel Storage Hub 12 Features Expandability and Performance—supports 12 GigaBit Interface Converter modules Flexibility—adheres to the ANSI FC-AL standard...

  • Page 18: Gigabit Interface Converter Module (Gbic)-Shortwave (Sw)

    1-10 Compaq StorageWorks Fibre Channel Troubleshooting Guide GigaBit Interface Converter Module (GBIC)-Shortwave (SW) The shortwave GBIC module converts electrical signals to optical serial signals for transmission across the FC-AL and vice versa. The Fibre Channel cable connector is plugged into the installed GBIC module.

  • Page 19: Gigabit Interface Converter Module (Gbic)-Longwave (Lw)

    . IMPORTANT: To ensure product integrity, Compaq recommends a 9/125 µm single mode Fibre Channel cable that complies with Bellcore GR409. The cable assembly should be terminated with SC Duplex Connectors at each end, which are NNT-SC, Bellcore 326, and IEC-874-19 compliant.

  • Page 20: Replacing Components In A Primary Storage System

    This section describes the steps required to replace FC-AL components in a StorageWorks RAID Array 4000 or 4100 storage system. Refer to the Compaq StorageWorks Fibre Channel Host Bus Adapter Installation Guide and Compaq StorageWorks RAID 4000 User Guide or Compaq StorageWorks RAID 4100 User Guide for details.

  • Page 21: Replacing The Ra4000 Controller Without Ra4000 Redundant Controller

    Introduction 1-13 Replacing the RA4000 Controller without RA4000 Redundant Controller When an RA4000 Controller fails in an online RA4000 Array: 1. Perform a normal system shutdown of the servers. 2. Power down the RA4000. 3. Unplug all power cords from the RA4000 Array. Remove the Fibre Channel cable attached to the GBIC in the failed RA4000 Controller.
  • Page 22 1-14 Compaq StorageWorks Fibre Channel Troubleshooting Guide 7. Install the replacement RA4000 Controller by inserting it into the tracks in the rear panel opening. 8. Push the controller in as far as it will go and close both latches against the rear panel The levers on each latch should catch behind the metal lip, drawing the board into position and securing it into place.

  • Page 23: Replacing The Ra4000 Controller With Redundant Controller

    Introduction 1-15 Replacing the RA4000 Controller with Redundant Controller 1. Remove the Fibre Channel cable attached to the GBIC in the failed RA4000 Controller. 2. Squeeze the tabs on either side of the GBIC , then remove the GBIC by pulling it straight out of the RA4000 Controller Figure 1-14.
  • Page 24 1-16 Compaq StorageWorks Fibre Channel Troubleshooting Guide 4. Remove the RA4000 Controller by pulling it straight out of the chassis Figure 1-15. Removing the RA4000 Controller 5. Install the replacement RA4000 Controller by inserting it into the tracks in the rear panel opening.

  • Page 25: Fibre Channel Tape Controller

    Introduction 1-17 Fibre Channel Arbitrated Loop Components in a Secondary Storage System A typical Fibre Channel Arbitrated Loop for a secondary storage system consists of: A Fibre Channel Host Bus Adapter installed in each server At least one Storage Hub 12 At least one Fibre Channel Tape Controller One Shortwave GigaBit Interface Converter (GBIC) per Fibre Channel Host Bus Adapter or Storage Hub 12 port.
  • Page 26 1-18 Compaq StorageWorks Fibre Channel Troubleshooting Guide The Storage Hub 12 is transparent to the data passing through it. It does not consume any FC-AL addresses. Because of the intelligent signal detection tests, only valid Fibre Channel devices will be connected to the FC-AL. When devices are added to the FC-AL, the Storage Hub 12 will automatically test the new device and accept it into the FC-AL.

  • Page 27: Fibre Channel Tape Controller

    FC-AL. It provides connectivity for a single SCSI Fast/Wide or Ultra SCSI bus running the SCSI Fibre Channel Protocol (FCP). The form factor is 1U (1.7 inches high) and is intended for a standard Compaq Rack System environment. All connections are on the rear panel of the unit.

  • Page 28: Fibre Channel Tape Controller Ii

    Figure 1-20. Compaq Fibre Channel Tape Controller II The Compaq Fibre Channel Tape Controller II connects a Fibre Channel link to a SCSI bus. The tape controller connects to a Fibre Channel Storage Hub through a fiber cable, and also connects to a SCSI bus device (a secondary tape storage system) using the conventional SCSI interface and cables.

  • Page 29: Gigabit Interface Converter Module-Shortwave

    Introduction 1-21 GigaBit Interface Converter Module-Shortwave This section contains information on the GigaBit Interface Converter Module-Shortwave. See page 1-10 of this guide. Fibre Channel Cable Option Kits This section contains information on the Fibre Channel Cable Option Kits. See page 1-11 of this guide.

  • Page 30: Replacing A Gbic

    1-22 Compaq StorageWorks Fibre Channel Troubleshooting Guide Replacing a GBIC To replace a GBIC: 1. Remove the Fibre Channel cable from the failed GBIC. Carefully remove the GBIC from the receptacle on the equipment. 2. Install a known good GBIC into the receptacle on the equipment. The GBIC can only be installed one way because the GBIC and the guide rails inside the Fibre Channel Host Bus Adapter receptacle are keyed.

  • Page 31: Fibre Channel Fault Isolation Utility

    Installing the Utility The latest files for the Fibre Channel Fault Isolation Utility, as well as information about installing the utility, are located on the Compaq SmartStart and Support Software CD. Running the Utility To run the Fibre Channel Fault Isolation Utility: 1.

  • Page 32: Program Displays

    2-2 Compaq StorageWorks Fibre Channel Troubleshooting Guide Program Displays The utility's main display is shown below. It displays each FC-AL from the perspective of the server. All Fibre Host Bus Adapters in the server are shown with a slot number and indicate a PCI (/P) or EISA (/E).

  • Page 33: Display Of A Fibre Channel Tape Controller

    Fibre Channel Fault Isolation Utility 2-3 Display of a Fibre Channel Tape Controller The Fibre Channel Fault Isolation Utility displays detailed information about any Fibre Channel Tape Controller connected to the FC-AL. The figure below shows a Fibre Channel Tape Controller selected, with detailed information about this tape controller displayed to the right.

  • Page 34: Loop Error Histogram Display

    2-4 Compaq StorageWorks Fibre Channel Troubleshooting Guide Loop Error Histogram Display The Loop Error Histogram indicates errors detected on the FC-AL when a Fibre Channel Host Bus Adapter is highlighted. Each bar represents a 3 second period of activity. The histogram scrolls from right to left.

  • Page 35: Display Of A Fc-Al With A Missing Fibre Channel Tape Controller

    Fibre Channel Fault Isolation Utility 2-5 Display of a FC-AL with a Missing Fibre Channel Tape Controller The figure below shows a Fibre Channel Host Bus Adapter highlighted with a Fibre Channel Tape Controller missing. This indicates that while the Tape Controller has become inactive on the FC-AL since the utility was started.

  • Page 36: Uninitialized Fibre Channel Arbitrated Loop Display

    2-6 Compaq StorageWorks Fibre Channel Troubleshooting Guide Uninitialized Fibre Channel Arbitrated Loop Display In the figure below, the FC-AL connected to the Fibre Channel Host Bus Adapter in Slot 1 has not initialized. This can be derived from the Fibre Channel Host Bus Adapter having the default ALPA of 255.

  • Page 37: Diagnostics

    The test allows multiple logical volumes to be simultaneously exercised while trapping any error conditions. It is important to note this subset of the Compaq Fibre Channel Diagnostics for Windows 95/98 can not co-exist with normal Compaq Diagnostics for Windows 95/98 potentially already installed.

  • Page 38: Compaq Fibre Channel Backup Diagnostics For Windows Nt

    Compaq Fibre Channel Backup Diagnostics for Windows NT The Compaq Fibre Channel Diagnostics is a group of hardware diagnostic tests designed to the Compaq StorageWorks Enterprise Backup Solution. This is a subset of the normal Compaq Diagnostics for Windows NT specifically to help identify any potential problems with the Fibre Channel Tape Controller and the DLT 15 Cartridge Library Model 3570 on the Fibre Channel Arbitrated Loop.

  • Page 39: Installing Compaq Fibre Channel Diagnostics For Windows Ce

    Installing Compaq Fibre Channel Diagnostics for Windows CE Compaq Fibre Channel Diagnostics for Windows CE is available on the SmartStart and Support Software CD. It is bundled with the Compaq Diagnostics for Windows 95/98. Create the installation diskettes by following the SmartStart instructions.

  • Page 40: Installing Compaq Fibre Channel Diagnostics For Windows 95 Or 98

    3. Restart the computer. Installing Compaq Fibre Channel Backup Diagnostics for Windows NT Compaq Fibre Channel Backup Diagnostics for Windows NT is available on the SmartStart and Support Software CD. Create the installation diskettes by following the SmartStart instructions. To install the utility: 1.

  • Page 41: Storageworks Raid Array 4000 And 4100 Troubleshooting Flow Charts

    Chapter StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts This chapter contains troubleshooting flow charts that will help diagnose problems on a FC-AL in an RA4000 and RA4100 Storage System. The flow charts are listed by problem symptoms or troubleshooting procedures, as follows: Overview of the Troubleshooting Flow Charts (page 4-2) Verify System Operation (4-4)

  • Page 42: Overview Of The Troubleshooting Flow Charts

    4-2 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Overview of the Troubleshooting Flow Charts The following overview of the Fibre Channel Troubleshooting Flow Charts provides a logical approach to troubleshooting problems on the FC-AL. The Fibre Channel Fault Isolation Utility and the appropriate flow chart can be used to help identify problem areas on the FC-AL and to help verify that the FC-AL is functioning normally after repairs are made.
  • Page 43 StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-3 Use the Determining A Bad Link flow chart Use the Checking the Link between the When using the Fibre Channel Fault Storage Hub 7 and the Fibre Channel Isolation Utility, were all Fibre Channel Host Bus Adapter flow chart Array Controllers missing? When using the Fibre Channel Fault...

  • Page 44: Verify System Operation

    4-4 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Verify System Operation Begin Ensure that each Host Bus Adapter is fully seated. Verify that power has been applied to all devices on the FC-AL Run System Configuration. Start the Fibre Channel Fault Isolation Utility at the server.
  • Page 45 StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-5 Note: Loop errors may occur briefly as a result of starting the Fault Isolation Utility or adding or removing Fibre Channel Array Controllers. This is normal. Highlight a server in the Fault Isolation Utility Any errors in Error Histogram?

  • Page 46: Determine A Bad Link

    4-6 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Determine a Bad Link Begin Were FC-AL errors detected? Done Are Fibre Channel Array Controllers missing? Determine which loop has the errors by highlighting one Host Bus Adapter at a time and looking at the Error Histogram.

  • Page 47: Some Fibre Channel Array Controllers Are Detected

    StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-7 Some Fibre Channel Array Controllers Are Detected Begin Run the Fault Isolation utility. Determine which ALPAs are not shown by the utility. Check Is the Active LED seating of the Fibre blinking on the Fibre Channel Channel Array Array Controller not returning an ALPA?
  • Page 48 4-8 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Remove the server cable Is the recieve LED on? connector from the GBIC at To check if light is the Storage Hub 7. coming from the cable connector, plug the cable into a good...
  • Page 49 StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-9 Is the GBIC seated properly in Are the active LEDs lit on the Reset the GBIC. the receptacle? Storage Hub 7? See Appendix A. Replace the GBIC. if the problem persists replace the storage Hub 7.

  • Page 50: Visual And Physical Inspection Of The Fc_Al

    4-10 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Visual and Physical Inspection of the FC_AL Begin Check the seating of all GBICs and cable connectors on the FC-AL. Has the problem with the FC- Done AL been corrected? Remove each GBIC and check visually for any defects.
  • Page 51 StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-11 Check that cable connector is inserted into GBIC correctly. The cable connector ferrules must be inserted fully into the connector and not recessed. Check with the Fault Isolation Utility to see if the problem was corrected.

  • Page 52: Checking The Link Between The Storage Hub And The Fibre Channel Array Controller

    4-12 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Checking the Link Between the Storage Hub and the Fibre Channel Array Controller Begin Perform a visual and physical inspection of the FC-AL. Use the Visual and Physical inspection of the FC-AL flow chart.
  • Page 53 StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-13 Run the loopback test on this GBIC. Go to the Fibre Channel Loopback Test flow chart. Possible Fibre Channel Array failure. Check seating of the Fibre Channel Array Controller. Did the loopback test fail Check to make sure the power supply is with an internal error secure and the power source is active...
  • Page 54 4-14 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Attach loopback plug to the cable. Run the loopback test with this cable configuration. Go to the Fibre Channel Loopback Test flow chart. Did the loopback test fail Replace the Fibre Channel cable.

  • Page 55: Checking The Link Between The Storage Hub And The Fibre Channel Host Bus Adapter

    StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-15 Checking the Link Between the Storage Hub and the Fibre Channel Host Bus Adapter Begin Perform a visual and physical inspection of the FC-AL. Use the Flow Chart on page 4-10 To test the GBICs and the Fibre Channel cable, remove the GBICs and the cable from between the Fibre Channel Host Bus Adapter and the Storage Hub 7 or Hub 12.
  • Page 56 4-16 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Remove the GBIC from the other end of the cable. Place loopback plug on the end of the cable. Run the Fault Isolation Utility Observe the program display for errors. If the problem persists, try new...

  • Page 57: Fibre Channel Loopback Test

    StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-17 Fibre Channel Loopback Test Begin The Fibre Channel Loopback test is a method to verify proper function of cables, GBICs and nodes of your Fibre Array system on an isolated link. The test consists of running a diagnostic utility remotely through a serial port connection between the Fibre Array and a PC such as a laptop.
  • Page 58 4-18 Compaq StorgeWorks Fibre Channel Troubleshooting Guide Did the test pass? Insert the Fibre Channel cable into the GBIC at the Fibre Array. Insert the Loopback plug into the connector of the Fibre Channel cable. Run the diagnostics utility on the laptop or other computer.
  • Page 59 StorageWorks RAID Array 4000 and 4100 Troubleshooting Flow Charts 4-19 GBIC not plugged-in error? Reseat the GBIC. Return to page 4-17 to begin the Fibre Channel Loopback Test flowchart again. Internal failure indicated? Replace the Fibre Channel Array Controller. Done External failure indicated? Replace the GBIC or Fibre Channel Cable, depending on which was being tested.

  • Page 60: Secondary Storage System Troubleshooting Flow Charts

    Chapter Secondary Storage System Troubleshooting Flow Charts This chapter contains troubleshooting flow charts that can be used to diagnose problems on a FC-AL in a Secondary Storage System. The flow charts are listed by problem symptoms or troubleshooting procedures, as follows: Overview of the Troubleshooting Flow Charts (page 5-2) Verifying FC-AL Operation (5-4) Determining a Bad Link (5-6)

  • Page 61: Overview Of The Troubleshooting Flow Charts

    5-2 Compaq StorageWorks Fibre Channel Troubleshooting Guide Overview of the Troubleshooting Flow Charts The following overview of the Fibre Channel Troubleshooting Flow Charts provides a logical approach to troubleshooting problems on the FC-AL. The Fibre Channel Fault Isolation Utility and the appropriate flow chart can be used to help identify problem areas on the FC-AL and to help verify that the FC-AL is functioning normally after repairs are made.
  • Page 62 Secondary Storage System Troubleshooting Flow Charts 5-3 Run the Fibre Channel Fault Isolation Utility. Use the Checking the Link between the Were all Fibre Channel Tape Storage Hub 12 and the Fibre Host Controllers missing? Bus Adapter flow chart. Use the Some Fibre Channel Tape Were some Fibre Channel Tape Controllers Are Detected flow chart.

  • Page 63: Verifying Fc_Al Operation

    5-4 Compaq StorageWorks Fibre Channel Troubleshooting Guide Verifying FC_AL Operation Begin Verify that power has been Ensure that each Host applied to all devices on the Bus Adapter is fully seated. FC-AL. Run System Configuration Utility. Start the Fibre Channel Fault Isolation Utility at the server.
  • Page 64 Secondary Storage System Troubleshooting Flow Charts 5-5 Note: Loop errors may occur briefly as a result of starting the Fault Isolation Utility or adding or removing Fibre Channel Tape Controllers. This is normal. Highlight a server in the Fault Isolation Utility. Any errors in Error Histogram? Go to Determining a Bad...

  • Page 65: Determining A Bad Link

    5-6 Compaq StorageWorks Fibre Channel Troubleshooting Guide Determining a Bad Link Begin Were FC-AL errors detected? Are Fibre Channel Tape Done Controllers Missing? Determine which loop has the errors by highlighting one Host Controller at a time and looking at the Error Histogram.

  • Page 66: Some Fibre Channel Tape Controllers Are Detected

    Secondary Storage System Troubleshooting Flow Charts 5-7 Some Fibre Channel Tape Controllers are Detected Begin Run the Fault Isolation utility. Determine which ALPAs are not shown by the utility. Go to the Checking the Link Is the missing between the Fibre Storage Tape Controller connected Hub 12 and the Fibre to a FC-AL shared with other...
  • Page 67 5-8 Compaq StorageWorks Fibre Channel Troubleshooting Guide Are any Bypass LEDs (Amber) lit on the Storage Hub 12? Refer to Appendix A for the location of the LED. Is the Fibre Channel LED flickering on the Fibre Channel Tape Controller? Refer to Appendix A for the location of the LED.

  • Page 68: Visual And Physical Inspection Of The Fc_Al

    Secondary Storage System Troubleshooting Flow Charts 5-9 Visual and Physical Inspection of the FC_AL Begin Check the seating of all GBICs and cable connectors on the FC-AL. Is the FC-AL functioning Done normally? Remove each GBIC and check visually for any defects. Replace GBICs and make sure each GBIC is snapped fully into the connector.
  • Page 69 5-10 Compaq StorageWorks Fibre Channel Troubleshooting Guide Verify the Cable connector is inserted into GBIC correctly. The cable connector ferrules must be inserted fully into the connector and not recessed. Check the FC-AL with the Fibre Channel Fault Isolation Utility to see if the problem was corrected.

  • Page 70: Checking The Link Between The Storage Hub 12 And The Fibre Channel Host Bus Adapter

    Secondary Storage System Troubleshooting Flow Charts 5-11 Checking the Link Between the Storage Hub 12 and the Fibre Channel Host Bus Adapter Begin Perform a visual and physical inspection of the FC-AL. Use the flow chart on page 5-9. To troubleshoot the GBICs and cable between the Storage Hub 12 and Fibre Channel Host Bus Adapter, replace them with new components.
  • Page 71 5-12 Compaq StorageWorks Fibre Channel Troubleshooting Guide Place loopback plug, with crossover, on the end of the cable. Run the Fault Isolation Utility. Observe the program display for errors. If the problem persists, try new components or seek Compaq Were there any errors? Service.
  • Page 72 Secondary Storage System Troubleshooting Flow Charts 5-13 Checking the Link Between the Storage Hub 12 and the Fibre Channel Tape Controller Begin Perform a visual and physical inspection of the FC-AL. Use the flow chart on page 5-9. Run the Fault Isolation Utility to test the integrity of the link.
  • Page 73 5-14 Compaq StorageWorks Fibre Channel Troubleshooting Guide Possible Tape Controller failure. Refer Is laser light coming from to the Compaq Fibre Channel Tape the cable connector? Controller User Guide for additional troubleshooting information. Replace the GBIC at the Storage Hub 12.

  • Page 74: Primary And Secondary Storage System Leds

    Primary and Secondary Storage System LEDs This section describes the LEDs found in a Compaq StorageWorks RA4000, RA4100, or Enterprise Backup Solution. The LEDs described in this Appendix can be used to determine normal operation or fault conditions depending on their assignment.

  • Page 75: Ra4000 Controller

    A-2 Fibre Channel Troubleshooting Guide Receive LED Transmit LED Figure A-2. Fibre Channel Host Bus Adapter/E RA4000 Controller During normal operation, the RA4000 Controller has 18 LEDs that indicate activity or status of the controller. Table A-1 describes the purpose and function of each LED. GBIC Transmit Serial Debug...

  • Page 76: Storage Hub 7

    Primary and Secondary Storage System LEDs A-3 Table A-1 RA4000 Controller LED Descriptions continued Function Description SCSI Bus 1 Active On = Indicates requests are outstanding on the second SCSI bus Cache On = Cache Failure Activity/Error Off = No Cache activity Blinking = Cache transfer pending Drive Failure On = A configured hard drive has failed in the array...

  • Page 77: Storage Hub 12

    A-4 Fibre Channel Troubleshooting Guide Figure A-5. Bypass Mode LEDs Storage Hub 12 When power is applied, all LEDs will turn on during the self-test, which lasts 15 to 60 seconds. After the power self test, the Power LED stays on, the Fault LED turns off. Figure A-6 shows the location of the Power and Fault LEDs.
  • Page 78 Primary and Secondary Storage System LEDs A-5 The upper green LED is the GBIC-installed LED. This LED turns on when a GBIC module is installed. Figure A-7. GBIC-Installed LED The lower amber LED is the Bypass Port LED, which indicates that the associated port is in bypass mode.

  • Page 79: Fibre Channel Tape Controller

    A-6 Fibre Channel Troubleshooting Guide Fibre Channel Tape Controller Figure A-9 shows the location of the LEDs found on the rear panel of the Fibre Channel tape controller. Figure A-9. Fibre Channel tape controller Table A-2 Fibre Channel Tape Controller LED Descriptions Function Description Power...

  • Page 80: Fibre Channel Tape Controller Ii

    Fibre Channel Tape Controller II The following illustration shows the location of the status lights (LED indicators) that monitor the operating status of the Compaq StorageWorks Fibre Channel Tape Controller II. Figure A-10. Fibre Channel Tape Controller II rear panel status lights...

  • Page 81: Gbic And Fibre Channel Cable Connector Cleaning Considerations

    Appendix GBIC and Fibre Channel Cable Connector Cleaning Considerations This appendix contains important information about the risk of optic contamination of both GBIC modules and Fibre Channel cable connectors. Optics are susceptible to anything that hinders light transmission. Consequently, manufacturers of both GBIC Modules and Fibre Channel cable connectors provide dust covers to protect the optical areas and ensure optical signal integrity for initial system configuration.

  • Page 82: Index

    Channel Tape Controller status light A-7 secondary storage system flow FC_AL 1-20 chart 5-13 components, primary Compaq website 1-20 storage 1-3 configuration, multiple primary storage system 1-2 servers 1-20 FC-AL See Fibre Channel Arbitrated Loop FCTC See Fibre Channel Tape...
  • Page 83 2 Compaq StorageWorks Fibre Channel Troubleshooting Guide FFIU See Fibre Channel Fault Fibre Channel Storage Hub 12 Isolation Utility power-on LED Fiber Channel Tape Controller II illustrated A-4 description 1-20 Fibre Channel Storage Hub 7 1-8 Fibre Channel Arbitrated Loop See...
  • Page 84 Index 3 figures Gigabit Interface Converter Module installing the RA4000 defined 1-10 Controller 1-14, 1-16 removing the RA4000 Controller 1-13, 1-16 HBA See PCI flow charts hub 12 primary system management module 1-18 checking link between hub and array controller 4-12 checking link between hub and host bus adapter 4-15 illustrations...
  • Page 85 4 Compaq StorageWorks Fibre Channel Troubleshooting Guide features 1-2 rear panel, status lights A-7 panels rear 1-14 (/P) 2-2 SCSI bus 1-4 status light A-7 Host Bus Adapter 2-2 SCSI-FCP protocol 1-20 PCI bus See PCI secondary storage system flow chart...
  • Page 86 Index 5 verify system operation When to Clean Fiber Optic primary storage flow chart 4-4 Components B-1 www.compaq.com 1-20...

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