StorageWorks Fibre Channel Storage Switch Service Guide AA-RHBZA-TE 135268-001 First Edition (April 1999) Part Number AA-RHBZA-TE 135268-001 Compaq Computer Corporation
Notice The information in this publication is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.
Contents About This Guide Text Conventions ................................................................................................. vii Symbols in Text ................................................................................................... vii Symbols on Equipment ........................................................................................ viii Rack Stability........................................................................................................
iv StorageWorks Fibre Channel Storage Switch Service Guide Chapter 2 Troubleshooting Introduction......................................................................................................... 2-1 Diagnostics Overview.......................................................................................... 2-1 Bootrom Memory Test Diagnostics............................................................... 2-2 Diagnostic Front Panel Displays ..........................................................
About This Guide v Installing an Interface Card ........................................................................... 3-6 Replacing a GBIC Module................................................................................... 3-6 Replacing a CPU Card......................................................................................... 3-7 Removing a CPU card .................................................................................. 3-7 Installing a CPU Card .............................
vi StorageWorks Fibre Channel Storage Switch Service Guide Figure 3-3. Figure 3-4. Figure 3-5. Figure 3-6 Figure 3-7. Figure 3-8. Figure 3-9. Figure B-1. Loosing the Rear Interface Card Bracket ........................................... 3-5 Interface Card - Media Interface Module and Card Extractor ............. 3-7 Removing a CPU Card...................................................................... 3-8 Removing the Front Panel Assembly...............................................
About This Guide This guide is designed to be used as step-by-step instructions for installation and as a reference for operation, troubleshooting, and future upgrades. Text Conventions This document uses the following conventions to distinguish elements of text: Keys Keys appear in boldface. A plus sign (+) between two keys indicates that they should be pressed simultaneously. Type When you are instructed to type information, type the information without pressing the Enter key.
viii StorageWorks Fibre Channel Storage Switch Service Guide IMPORTANT: Text set off in this manner presents clarifying information or specific instructions. NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information. Symbols on Equipment These icons may be located on equipment in areas where hazardous conditions may exist. Any surface or area of the equipment marked with these symbols indicates the presence of electrical shock hazards.
About This Guide ix Rack Stability WARNING: To reduce the risk of personal injury or damage to the equipment, be sure that: ■ The leveling jacks are extended to the floor. ■ The full weight of the rack rests on the leveling jacks. ■ The stabilizing feet are attached to the rack if it is a single rack installations. ■ The racks are coupled together in multiple rack installations. ■ A rack may become unstable if more than one component is extended for any reason. Extend only one component at a time.
x StorageWorks Fibre Channel Storage Switch Service Guide ■ Add-on boards or hardware ■ Third-party hardware or software ■ Operating system type and revision level ■ Detailed, specific questions Compaq Website The Compaq website has information on this product as well as the latest drivers and Flash ROM images. You can access the Compaq website by logging on to the Internet at http://www.compaq.com.
Chapter 1 Introduction Introduction to the Fibre Channel Storage Switch The Fibre Channel Gigabit Storage Switch consists of: ■ A motherboard ■ A processor board ■ Connectors for supporting up to 8 dual-port interface cards ■ Firmare for building and managing a Fabric. A Fabric is an active, intelligent, non-shared interconnect scheme for Fibre Channel server and storage nodes. One or more Switches interconnected create a Fibre Channel Fabric. Figure 1-1 shows the front view of the Switch.
1-2 StorageWorks Fibre Channel Storage Switch Service Guide 0 2 4 6 8 10 12 14 1 3 5 7 9 11 13 15 SHR-1205 Figure 1-1. Switch Front View Fibre Channel Switch Features ■ Simplicity – After Power-On Self-Test (POST), you need only to enter the Internet Protocol (IP) address. The remainder of the Switch setup is automated. ■ Intelligence – Supports up to 32 interconnected Switches; firmware allows discovery of all connected devices and determines optimum data paths without user intervention.
Introduction 1-3 Table 1-1 describes Switch technical features. Table 1-1 Storage Switch Technical Features FEATURE DESCRIPTION Login (FC) Explicit Fabric login is supported (public and private). Probing Automatic discovery of devices and auto registration with the Fabric Simple Name Service (SNS). For private devices, translation mode is set so that other Fabric attached devices can communicate with them.
1-4 StorageWorks Fibre Channel Storage Switch Service Guide Table 1-1 Storage Switch Technical Features continued FEATURE DESCRIPTION Time Out Values Both R_A_TOV (Resource Allocation Time Out Value) and E_D_TOV (Error Detect Time Out Value) are adjustable in 1millisecond increments via Telnet. Fabric Name An automatic Fabric Name assignment method is used in a multiSwitch configuration.
Introduction 1-5 Table 1-1 Storage Switch Technical Features continued FEATURE DESCRIPTION Management The Switch may be managed via Telnet, the SNMP agent, the SCSI-3 SES protocol agent, and the Web Tools via StorageWorks Command Console software. The last three entities are accessible via the Internet Protocol over RJ45 10BaseT Ethernet port or any Fibre Channel port. You can use any SNMP-based management product to access the SNMP agent. You may use any supported Web browser to use the Web Tools.
1-6 StorageWorks Fibre Channel Storage Switch Service Guide Performance A minimum aggregate routing capacity of 8M frames/sec is specified for Class 2, Class 3, and Class F frames. Non-blocking throughput of up to 16 x 100MBytes/sec (1.6 GBytes/sec) is provided. A maximum Switch latency of less than two microseconds is specified for Class 2, Class 3, and Class F frames when the output port is free. Manageability The Switch is managed locally with the four front panel buttons and the front panel display.
Introduction 1-7 Reliability The Switch has the following features to ensure its reliability: ■ Power-On Self-Test (POST) ■ Bootrom Memory Testing ■ Temperature and fan-speed monitoring ■ Low component count.
1-8 StorageWorks Fibre Channel Storage Switch Service Guide System Components The Switch architecture separates the switching function from the ports, resulting in three basic board modules: the motherboard, its CPU daughter board, and plug-in interface cards. The CPU daughter board module holds the CPU, memory, and an Ethernet port. Components are enclosed in an air-cooled chassis, which can be mounted in a standard rack or used as a tabletop unit.
Introduction 1-9 System Firmware The system firmware controls the management, automatic configuration, and diagnostics of the StorageWorks Fibre Channel Switch. Interface Cards The Switch has slots to accommodate eight plug-in, dual G_Port or dual FL_Port interface cards. All interfaces have status lights visible from the front panel giving a quick, visual check of the interface card’s status and activity.
1-10 StorageWorks Fibre Channel Storage Switch Service Guide as the Fabric grows. Additionally, the Switches in the Fabric automatically reconfigure the Fabric as Switches or links fail or are removed. Dual Channel G_Port Interface Card Each dual-channel G_Port interface card supports two G_Ports. Each G_Port accepts interchangeable GBIC modules are installed. Currently, the GBIC modules supported are the SWL fiber-optic and LWL fiber-optic.
Introduction 1-11 Dual Channel FL_Port Interface Card Each dual-channel FL_Port interface card supports two FL_Ports when two interchangeable GBIC modules are installed for connecting to Fibre Channel Arbitrated Loops. The FL_Port card has a green identifying LED visible from the front of the interface card. The FL_Port may be attached to either private NL_Ports or public NL_Ports. The FL_Port manages loop communication and initialization.
Chapter 2 Troubleshooting Introduction This Chapter describes how to troubleshoot the StorageWorks Fibre Channel Storage using feedback from diagnostics, status indicators and LEDs, memory and loopback tests, and point-of-failure tests. The major sections are: ■ Diagnostics Overview ■ Status and Activity Indicators ■ Diagnostic Tests ■ Diagnostic Error Messages. Diagnostics Overview The Switch is designed for maintenance-free operation.
2-2 StorageWorks Fibre Channel Storage Switch Sevice Guide front panel and monitor the results using both the front panel display and Telnet. When beginning a test from the front panel, you can monitor the progress, but you cannot control the test with Telnet. If you start a test with Telnet, and attempt to control the test from the front panel, you might lock up the Telnet session and need to kill the Telnet session from the front panel.
Troubleshooting 2-3 1 2 3 4 5 6 SHR-1209 Figure 2-1. Fibre Channel Front Panel Display 1 Ethernet connection. 2 A muilt-function button, this button scrolls you through the menu list. After a menu is selected, this button scrolls you down the list of menu selections. Also, if you have selected an item that requires a numeric entry, this button decrements the number. 3 A muilt-function button, this button scrolls you through the menu list.
2-4 StorageWorks Fibre Channel Storage Switch Sevice Guide Isolating a System Fault Loopback paths are built into the Switch hardware for use by diagnostics. A loopback path test within the Switch verifies the proper internal Fibre Channel port logic functions and the paths between the interfaces and central memory. The Switch’s diagnostics also support external loops for testing interface cards and their GBIC modules in cross port configurations.
Troubleshooting 2-5 Table 2-1 Power LED Status Indicators Power LED Definition No light showing Power not applied Steady Power LED Normal power-on indicator Flashing Power LED Switch failed POST and is not functioning, although power is applied. Front Panel LED Port Indicators The color and flash speed of each port’s LED, as described in Table 2-2, indicates the individual port’s status.
2-6 StorageWorks Fibre Channel Storage Switch Sevice Guide Initialization Steps At power-on or reset, the following steps are initiated: 1. Bootrom Memory Test. 2. Switch operating system initialization. 3. Hardware initialization, including resets, internal addresses assigned to G_Port and FL_Port ASICs, serial port initialized, front panel initialized 4. Full POST is performed. 5. Link initialization; receiver/transmitter negotiation to bring connected ports online. 6.
Troubleshooting 2-7 Diagnostics The following tests are available on the front panel and through a Telnet session. Details on using the front panel and for accessing them from the front panel follow. NOTE: Accessing the Switch through Telnet provides a more detailed response indicating the Switch’s condition and allows the use of some commands which do not have an equivalent front panel command. Bootrom Diagnostics The Bootrom Memory Test is executed at Power-on.
2-8 StorageWorks Fibre Channel Storage Switch Sevice Guide Switch Offline Press with Switch Offline displayed, as follows: Switch Offline: Accept? Yes No Any test with the potential to interrupt data transmission requires taking the Switch offline. If the Switch is not offline, a prompt is displayed before the test continues. Switch Online Press with Switch Online selected as follows: Switch Offline: Accept? Yes No When the Switch is offline, continue the test.
Troubleshooting 2-9 Port Register Test Pressing while Port Register Test is selected displays a reminder to take the Switch offline if it is not offline. If the message is displayed, take the Switch offline as described in Switch Offline. Pressing starts the test, which checks the Switch’s G_Port and FL_Port ASIC registers. The ports tested are 0 to 16 including the G_Port and FL_Port ASIC for each port, plus the G_Port and FL_Port ASIC for Switch’s internal port.
2-10 StorageWorks Fibre Channel Storage Switch Sevice Guide Port Loopback Test Pressing while Port Loopback Test is selected displays a reminder to take the Switch offline, if it is not offline. If the message is displayed, take the Switch offline as described in section Switch Offline. The Port Loopback Test is an internal test which continues to run until you press any button. This test checks all of the Switch’s internal firmware and circuitry including the Switch’s G_Port and FL_Port ASICs.
Troubleshooting 2-11 NOTE: All ports on the Switch must be connected or else the Switch shows an error condition when disabled. If the Switch is enabled at least one set of ports must be cross connected or if using the single port test it must be cross connected, or else the Switch shows an error condition. If an error is detected during the test, the error is displayed on either the front panel display or during the Telnet session.
2-12 StorageWorks Fibre Channel Storage Switch Sevice Guide NOTE: When running the Spin Silk Test, you must set the operating mode value to 0 or 1. Modes 2 and 3 do not send out the ELP used to discover Switches. If the ELP is not sent, the Switch does not know the port is connected to another port on the same Switch and the test fails. Refer to Operating Mode for definitions of the four modes. Display Test Pressing while Display Test is selected causes a series of test characters to be displayed.
Troubleshooting 2-13 The front panel displays an error messages, as shown: Feb 12 08:48:29 Err DIAG-MEMORY-1 The first line displays the date and time the error was found, the second line displays the error text. NOTE: The last character in the bold portion of the following Telnet messages indicates the error level with 1 being the highest level, critical. Level 2 is a warning and Level 3 is informational. Telnet displays the full error message.
2-14 StorageWorks Fibre Channel Storage Switch Sevice Guide In this error message, one of the following descriptions replaces the term (regname): ■ WordsTX – Words transmitted ■ WordsRx – Words received ■ FramesTx – Frames transmitted ■ FramesRx – Frames received ■ Cl2FrmRx – Class 2 frames received ■ Cl3FrmRx – Class 3 frames received ■ LinkCtlFRx – Link control frames received ■ MCastRx – Multicast received ■ RDY_XmitPri – Number of times R_RDY has transmit priority higher than frames ■
Troubleshooting 2-15 RDRAM Test Error Message The RDRAM test is initiated with the Telnet command rdramTest. Pressing after entering the command starts the test. This section shows the error output, the probable cause for the error, and the suggested action. If the test does not find an error, there is no output during the Telnet session. If an error is found, the following message is displayed: Feb 12 08:48:29 000 DIAG-RAMBUSTO, 1 R RAMBUS Timeout, port XX tbuf_acc bit 31 stuck high.
2-16 StorageWorks Fibre Channel Storage Switch Sevice Guide Probable cause: FL_Port interface card failure Action: Replace FL_Port interface card Central Memory Test Error Messages The central memory test is started with the Telnet command centralMemoryTest. Pressing after entering the command starts the test. If the test does not find an error, there is no output from Telnet.
Troubleshooting 2-17 Loopback Test Error Messages The loopback test is started with the portLoopbackTest nFrames command over Telnet where, nFrames is the number of frames for the test to run. See portLoopbackTest on for more information. If an error is found, one or more of the following error messages is displayed.
2-18 StorageWorks Fibre Channel Storage Switch Sevice Guide Probable cause: Failure of G_Port and FL_Port ASIC Action: Replace Interface module Probable cause: Failure of interface module Action: Replace interface module Probable cause: Failure of GBIC module connector Action: Replace GBIC module Feb 12 08:48:29 0000DIAG-DATA, 1, PortX:pass nn 00Frame Tx4>->Rx4 payload byte offset nn is 0xXX sb 0xXX (CMEM: SOF@ bufline/offset 0xXXXX/0xXX, error @ physical 0xXXXX/0xXX Only one bad byte -- or -Last bad
Troubleshooting 2-19 Action: Replace interface module Feb 12 08:48:29 0000DIAG-INIT, 1, portLB: pass nn 00Port N failed to go active after initialization Probable cause: Failure of G_Port or FL_Port ASIC Action: Replace interface module Probable cause: Failure of interface module Action: Replace interface module Probable cause: Failure of GBIC module connector Action: Replace GBIC module Probable cause: Failure of motherboard Action: Replace motherboard Feb 12 08:48:29 0000DIAG-PORTDIED, 1, port
2-20 StorageWorks Fibre Channel Storage Switch Sevice Guide Probable cause: Failure of Interface module Action: Replace Interface module Probable cause: Failure of G_Port or FL_Port ASIC Action: Replace Interface module Cross Port Test Error Messages The cross port test is initiated by issuing the crossPortTest nFrames command through Telnet where, nFrames is the number of frames to run. See crossPortTest for more information. If the test does not find an error, there is no output through Telnet.
Troubleshooting 2-21 Action: Replace interface module Probable cause: Failure of fiber cable Action: Replace fiber cable Probable cause: Failure of GBIC module Action: Replace GBIC module Probable cause: Failure of GBIC module connector Action: Replace GBIC module Probable cause: Failure of G_Port or FL_Port ASIC Action: Replace interface module Probable cause: Failure of interface module Action: Replace interface module Probable cause: Failure of motherboard Action: Replace motherboard Feb 1
2-22 StorageWorks Fibre Channel Storage Switch Sevice Guide Probable cause: Failure of motherboard Action: Replace motherboard Probable cause: Failure of GBIC module Action: Replace GBIC module Probable cause: Failure of interface module Action: Replace interface module Feb 12 08:48:29 0000DIAG-STATS, 1, portLb: pass nn 00regname counter wrong on port N, is nnnn sb nnnn Probable cause: Failure of fiber cable Action: Replace fiber cable Probable cause: Failure of GBIC module Action: Replace GBIC m
Troubleshooting 2-23 Probable cause: Failure of G_Port or FL_Port ASIC Action: Replace interface module Probable cause: Failure of Interface module Action: Replace interface module Probable cause: Failure of motherboard Action: Replace motherboard Probable cause: Failure of GBIC module connector Action: Replace GBIC module Probable cause: Failure of Interface module Action: Replace interface module Probable cause: Failure of G_Port or FL_Port ASIC Action: Replace interface module Probable cause
2-24 StorageWorks Fibre Channel Storage Switch Sevice Guide Feb 12 08:48:29 0000DIAG-PORTSTOPPED, 1 0Port N no longer transmitting, ftx counter stuck at nnnn Error Messages by Firmware Module Table 2-3 shows the error messages organized by firmware module. Table 2-3 Error Messages by Firmware Module Module Flood Error Severity INVLSR (3) Explanation An unknown Link State Record has been received from a neighbor Switch.
Troubleshooting 2-25 Table 2-3 Error Messages by Firmware Module continued Module Error Severity Explanation Action INPORT (2) The input port in the IU received by the path selection task is out of range. Check that all paths and routing tables are correct. If they are not correct, reboot the local Switch. MSG (2) The path selection task has received an unknown message from another task. Check that all paths and routing tables are correct. If they are not, reboot the neighbor Switch.
2-26 StorageWorks Fibre Channel Storage Switch Sevice Guide Table 2-3 Error Messages by Firmware Module continued Module HLO Error Severity INVHLO (1) Explanation The path selection task has received a HELLO message with an invalid parameters from a neighbor Switch. Action Check that all paths and routing tables are correct. If they are not, reboot the neighbor Switch. Check the paths and routes again. If they are still incorrect, reboot the local Switch.
Troubleshooting 2-27 Table 2-3 Error Messages by Firmware Module continued Module NBFSM Error Severity Explanation Action SPFCOST (3) An error occurred with computing the multicast path tree. Run the LSDbAllShow command. Contact Customer Support. NGBRSTAT E (2) An error occurred in the neighbor Finite State Check the neighbor’s state with the nbrStateShow command. If the state is not NB_ST_FULL, force a state change with the portDisable command followed by portEnable.
2-28 StorageWorks Fibre Channel Storage Switch Sevice Guide Table 2-3 Error Messages by Firmware Module continued Module Error Severity TIMERS Explanation Action SYSCALL (2) A system call into VxWorks failed. Reboot the Switch. Contact customer support. ENQFAIL (1) An error occurred while setting a timer. Reboot the Switch. Run the commands actTimersShow and timerShow . Contact customer support. MSG (3) The timer task received an unknown message. Contact customer support.
Troubleshooting 2-29 Table 2-4 Panic Errors continued MSGQDELETE (0) A message queue could not be destroyed. Issue the traceShow command. Contact customer support. SEMCREATE (0) A semaphore could not be created. Issue the traceShow command. Contact customer support. SEMDELETE (0) A semaphore could not be destroyed. Issue the traceShow command. Contact customer support. TASKSPAWN (0) A task could not be created. Issue the traceShow command. Contact customer support.
Chapter 3 Repair and Replacement Repair and Replacement Overview This chapter covers the recommended and supported field repair and replacement for the Switch. This chapter includes: ■ Field Replaceable Units (FRU) Definition ■ Servicing the Switch NOTE: Any Switch repair or part replacement that is not explained in this chapter must be performed at a factory authorized repair facility.
3-2 StorageWorks Fibre Channel Storage Switch Service Guide Table 3-1 Field Replaceable Units Description Part Number Switch 16-port without GBICs 30-56042-S2 Switch 8-port without GBICs 30-56042-S1 Motherboard 29-34243-01 (127660-002) (127660-001) (401930-001) CPU Board 29-34244-01 (401931-001) G-Port Board 29-34245-01 (401932-001) Power Supply 29-34246-01 (401933-001) 3" Fan with Tachometer 29-34249-01 (401934-001) Front Panel subassembly 29-34468-01 Memory SIMM 16MB 20-47330-17 GBI
Repair and Replacement 3-3 Servicing a StorageWorks Switch Beginning with Replacing Interface Cards, the following sections cover servicing StorageWorks Switches. WARNING: Before removing the cover, turn off the Switch and disconnect it from the power source. Replacing Interface Cards After taking the system off-line and removing power, replace the interface card or one of its GBIC modules as follows: Caution: The motherboard and the interface cards contain electrostatic sensitive devices.
3-4 StorageWorks Fibre Channel Storage Switch Service Guide 0 2 4 6 8 10 12 14 1 3 5 7 9 11 13 15 SHR-1219A Figure 3-1. Removing the Switch Cover Removing an Interface Card To remove an interface card: 1. Remove any cabling attached to the interface card’s GBIC modules. 2 1 4 3 0 2 4 6 8 10 12 14 1 3 5 7 9 11 13 15 1 SHR-1220A Figure 3-2.
Repair and Replacement 3-5 2. Remove the GBIC modules by pushing the locking bar from the left side of the GBIC to the right. 3. Remove the screw (Figure 3-2, item 1) securing the interface card to the front panel. 4. Remove the side screw from the rear card bracket. 5. Loosen the five rear card bracket screws (Figure 3-3, item 2) 2 to 3 turns, but do not remove the screws. 1 2 SHR-1379 Figure 3-3. Loosing the Rear Interface Card Bracket 6.
3-6 StorageWorks Fibre Channel Storage Switch Service Guide CAUTION: Filler panels ensure EMI integrity. When upgrading a Switch, the filler panel is removed and an interface card is installed. If a card is removed, the filler panel must be re-installed. For a filler panel replacement, contact Compaq Support. Installing an Interface Card 1. Install the interface card as follows: 2. Remove the blank panel and screw from the Switch. 3.
Repair and Replacement 3-7 2 1 SHR-1378 Figure 3-4. Interface Card - Media Interface Module and Card Extractor NOTE: SNMP traps are generated on GBIC insertion and removal. To replace an IBM GBIC module into an interface card: 1. On the front of the GBIC module is a locking bar, ensure it is to the right side of the GBIC 2. Insert the GBIC module until its connector is firmly seated into the appropriate port. 3.
3-8 StorageWorks Fibre Channel Storage Switch Service Guide 4 4 4 2 3 1 5 0 2 4 6 8 10 12 14 1 3 5 7 9 11 13 15 SHR-1213A Figure 3-5. Removing a CPU Card NOTE: Note the position of the colored edge of the ribbon cable before removing it from the connector. This connector is not keyed. The colored edge of the flat ribbon connector is toward the edge of the CPU card with the CPU memory module. 2. Remove the three mounting screws 4 holding the CPU card to the standoffs. 3.
Repair and Replacement 3-9 3. Replace the 3 screws securing the CPU card to the standoffs. Tighten the screws snugly but do not over tighten. CAUTION: Over tightening the hold down screws may damage the CPU card. 4. Replace the front panel ribbon connector after checking that the marked edge of the ribbon connector is properly oriented. 5. Replace the front panel LED connector.
3-10 StorageWorks Fibre Channel Storage Switch Service Guide Replacing the Front Panel Assembly The front panel assembly contains the front panel display, the front panel buttons, the ON/OFF LED, and the Switch’s front panel. 2 1 0 2 4 6 8 10 12 14 1 3 5 7 9 11 13 15 SHR-1222A Figure 3-6 Removing the Front Panel Assembly Removing the Front Panel Remove the front panel assembly as follows: 1. If the Switch is online, take the Switch off-line as described in the section Switch Offline. 2.
Repair and Replacement 3-11 6. Remove the chassis assembly by gently pulling the assembly free of the chassis. Installing the Front Panel To install the front panel assembly as follows: 1. Replace the chassis assembly by gently pushing the assembly into the chassis. 2. Replace the screws at the side and bottom securing the front panel to the chassis. 3. Using the same care, replace the power LED connector to the CPU module. 4.
3-12 StorageWorks Fibre Channel Storage Switch Service Guide 1 2 5 3 4 SHR-1214A Figure 3-7. Power Supply Side of Switch, Cover Removed 2. Remove the CPU card 2 as described in the section Replacing a CPU Card. 3. Remove the power supply connectors 3 from the motherboard. 4. Remove the two screws from the bottom of the unit 4. 5. Remove the power supply connector 5 from the motherboard. 6.
Repair and Replacement 3-13 Installing the Power Supply To install the power supply, refer to the section Removing the Power Supply, which is the reverse of the installation procedure. Replacing the Main Chassis Fans Replacing the main chassis fans involves removing the existing fan assembly and installing a new assembly. Removing the Fan Assembly To replace the fan sub-assembly: 1.
3-14 StorageWorks Fibre Channel Storage Switch Service Guide 1 2 14 12 2 10 8 6 4 2 0 SHR-1217 Figure 3-9. Main Chassis Fans with Sub-assembly and Power Connections 4. Carefully unplug the two chassis fan power connectors (Figure 3-9, item 2) from the motherboard and lift the sub-assembly from the chassis, then remove the failed fan. Installing a Fan Assembly NOTE: When reconnecting he fan power, ensure that the connection is properly oriented. Do not force the connection.
Repair and Replacement 3-15 Replacing the Motherboard CAUTION: The motherboard contains static sensitive components. Use ESD precautions when handling the motherboard. Removing the Motherboard 1. Remove the cover from the Switch, the GBICs from the interface cards , and then remove the interface cards. 2. Remove the CPU caard. 3. Remove the rear interface card mounting bracket. 4. Remove the fan assembly. 5. Disconnect the motherboard power connector (Figure 3-9, item 1). 6.
Appendix A Glossary Definition of Terms Table A-1 contains terms relating to the Switch and Fibre Channel connections. Table A-1 Switch Terminology Term Definition Alias Server A Fabric software facility that supports multicast group management. Arbitrated Loop The FC Arbitrated Loop (FC-AL) is a standard defined on top of the FC-PH standard. It defines the arbitration on a loop where several FC nodes share a common medium.
A-2 StorageWorks Fibre Channel Storage Switch Service Guide Table A-1 Switch Terminology continued Community (SNMP) An SNMP community is a relationship between an SNMP agent and a set of SNMP managers that defines authentication, access control, and proxy characteristics.
Glossary A-3 Table A-1 Switch Terminology continued E_Port A port is designated an E_Port when it is used as an interSwitch expansion port to connect to the E_Port of another Switch to build a larger Switch Fabric. E_D_TOV (Error Detect Time Out Value) E_D_TOV (Error-Detect Time-Out Value) defines the time the Switch waits for an expected response before declaring an error condition. The error detect time out value is adjustable in 1ms increments from two seconds up to ten seconds.
A-4 StorageWorks Fibre Channel Storage Switch Service Guide Table A-1 Switch Terminology continued Interswitch Link (ISL) ISL is a fiber link between two Switches Loop A loop is a configuration of devices (for example, JBODs) connected to the Fabric via and FL_Port interface card. Multicast Multicast is used when multiple copies of data are to be sent to designated multiple destinations. N_Port The N_Port is the designation of an equipment port connected to the Fabric.
Glossary A-5 Table A-1 Switch Terminology continued Isolated E_Port ISL is online but not operational between Switches because of overlapping domain ID or nonidentical parameters such as E_O_TOVs. Simple Network Management Protocol (SNMP) SNMP is a TCP/IP protocol that generally uses the User Datagram Protocol (UDP) to exchange messages between a management information base and a management client residing on a network.
Appendix B Bootrom Diagnostics Bootrom Memory Test While the Bootrom Memory Test is active, the status LEDs on the CPU board indicate which phase of the test is running. The power-on LED is actually bit 0 of the CPU LEDs. For the information in Table B-1, the Poweron LED is ignored, making Bit 1 the lowest (bit 0), bit 2 is 1, and so on. CPU Card D2 (Bit 0 in Table B-1) Front Panel Figure B-1.
B-2 StorageWorks Fibre Channel Storage Switch Service Guide Table B-1 7-bit Assignments of the CPU LEDs Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 External CPU Status 0 0 0 0 0 0 1 Bit 0, Hex 01, processor writing memory 0 0 0 0 0 1 0 Bit 1 Hex 02, CPU reading st 1 quarter of memory. 0 0 0 0 1 0 0 Bit 1 Hex 02, CPU reading st 1 quarter of memory. 0 0 0 1 0 0 0 Bit 1 Hex 02, CPU reading st 1 quarter of memory.
Bootrom Diagnostics B-3 Memory Test Description On the first pass of the memory test, all memory is written with a checkerboard pattern of number 5(s) and letter A(s). For example, location 0 is written as: 0x5555555 location 1 is written as: 0xAAAAAAA location 2 is written as: 0x5555555 and so on, until all memory locations are included in the test. The processor reads each location and verifies the data.
B-4 StorageWorks Fibre Channel Storage Switch Service Guide Error Conditions The power-on LED flashes rapidly during a failure, but the CPU LEDs are unaffected. A failure condition while bit 0 is active is not likely. Active states on positions 1 through 4 indicate which quarter of memory generated a failure. A failed location is repeatedly and infinitely read and written - even in a case where the data eventually matches – until power is removed. This condition allows for scoping the bad signals.
Appendix C License Key Codes When to Replace a License Key A license key code is generated from the Switch World Wide Name (WWN), which is stored in the individual CPU card. When a CPU card for a given switch is replaced, the key code for the Switch is nullified, leaving Web Tools, and Zoning, non- functional. To renew these features, the license key code must be regenerated and entered into the switch to match the needed features and the new CPU card WWN.
C-2 StorageWorks Fibre Channel Storage Switch Service Guide Installing a New Key Code 1. Start a Telnet session 2. From the session window type: telnet>switch management This opens a switch administration window.
License Key Codes C-3 3. From the Telnet command line, type: telnet> licenseAdd “key” Where key is the license key string of alphanumeric characters in double quotes (“key”) that is provided by Compaq Customer Service, and must be entered exactly as given. NOTE: The key is case sensitive. For example: licenseAdd “9S9RzSebeATAS0k” When the license key is entered, check it with the licenseShow command. If the output license information is presented as in Step 2, reboot the switch.
Index Front Panel, Removing 3-10 B Bootrom Memory Test 2-2 C Cascading 1-2 Compaq authorized reseller x Compaq website x CPU Card, Installing 3-8 Removing 3-7 D diagnostics B-2 Diagnostics 2-1 G GBIC module 1-11 Replacing 3-6 getting help ix H help additional sources ix Compaq website x Compq authorized resellers, telephone numbers x technical support telephone numbers ix http://www.compaq.
2 StorageWorks Fibre Channel Storage Switch Service Guide P symbols on equipment viii Performance 1-6 port failure 2-2 POST 2-6 Power Supply, Installing 3-13 Removing 3-11 T technical features 1-3 technical support ix telephone numbers x text conventions vii R RJ-45 receptacle viii S Switch architecture 1-8 Switch Cover, Removing 3-3 Switch status 2-4 switching function 1-8 symbols in text vii W warnings electrical shock viii rack stability ix www.compaq.com.
