Brocade Communications Systems 5000 Manuale di Servizio

53-1001187-0124 November 2008Fabric OSTroubleshooting and Diagnostics GuideSupporting Fabric OS v6.2.0

x Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01• Chapter 13, “Working With Diagnostic Features,” provides procedures for use of the Bro

84 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01FTRACE concepts10cfg Creates an FTRACE configuration.-a 1|0 Enables or disables ACO.-b

Fabric OS Troubleshooting and Diagnostics Guide 8553-1001187-01FTRACE concepts10Deleting a configuration for a tunnel1. Log on to the switch as admin.

86 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01FTRACE concepts10 Buffer 0 will be saved 16000320 bytes will be saved for buffer 0.

Fabric OS Troubleshooting and Diagnostics Guide 8753-1001187-01FTRACE concepts10| | | |Trace Header| Wrap | In | Out |

88 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01FTRACE concepts10

Fabric OS Troubleshooting and Diagnostics Guide 8953-1001187-01Chapter11FICON Fabric IssuesIn this chapter•FICON issues . . . . . . . . . . . . . . .

90 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Troubleshooting FICON11Symptom Packets are being dropped between two FICON units.Probab

Fabric OS Troubleshooting and Diagnostics Guide 9153-1001187-01Troubleshooting FICON11• Supportshow data is only valid if run within about 30 minutes

92 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Troubleshooting FICON11Single-switch topology checklistThis checklist is something you

Fabric OS Troubleshooting and Diagnostics Guide 9353-1001187-01Troubleshooting FICON CUP11Also refer to Fabric OS Administrator’s Guide and the most r

Fabric OS Troubleshooting and Diagnostics Guide xi53-1001187-01• Support for gathering additional information- FCIP troubleshooting support• Provided

94 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Troubleshooting FICON NPIV11Symptom Mainframe RMF utility fails to capture performance

Fabric OS Troubleshooting and Diagnostics Guide 9553-1001187-01Chapter12iSCSI IssuesIn this chapter•Connectivity . . . . . . . . . . . . . . . . . . .

96 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Connectivity12Symptom Multiple sessions are established with the same target.Probable c

Fabric OS Troubleshooting and Diagnostics Guide 9753-1001187-01Zoning12ZoningThe following issues address zoning problems that can occur in iSCSI.Symp

98 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Authentication12Enable an appropriate DDSet using the iscsiCfg - -enable ddset command.

Fabric OS Troubleshooting and Diagnostics Guide 9953-1001187-01Chapter13Working With Diagnostic FeaturesIn this chapter•About Fabric OS diagnostics .

100 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Power-on self test13Most information can be captured using the supportShow or supportS

Fabric OS Troubleshooting and Diagnostics Guide 10153-1001187-01Power-on self test13modprobe: modprobe: Can't open dependencies file /lib/modules

102 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Switch status13Disabling POSTA reboot is not required for this command to take effect.

Fabric OS Troubleshooting and Diagnostics Guide 10353-1001187-01Switch status13Faulty ports monitor HEALTHYMissing SFPs monitor HEALTHYAll ports are

xii Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Notes, cautions, and warningsThe following notices and statements are used in this man

104 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Chassis-level diagnostics13The switchShow command also displays the following informat

Fabric OS Troubleshooting and Diagnostics Guide 10553-1001187-01Port information13• chassisEnable — enables all the ports in the chassis• bladeDisable

106 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Port information13Free_buffer: 0 Address_err: 0 Overrun:

Fabric OS Troubleshooting and Diagnostics Guide 10753-1001187-01Port information13er_inv_arb 0 Invalid ARBopen 810

108 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Equipment status13The portErrShow command output provides one output line per port. Se

Fabric OS Troubleshooting and Diagnostics Guide 10953-1001187-01Equipment status13• Above minimum—Fan is rotating too quickly.• Unknown—Unknown fan un

110 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01System message log13System message logThe system message, or RAS, log feature enables

Fabric OS Troubleshooting and Diagnostics Guide 11153-1001187-01Port log13Port logThe Fabric OS maintains an internal log of all port activity. The po

112 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Syslogd configuration13The portLogDump command output (trace) is a powerful tool that

Fabric OS Troubleshooting and Diagnostics Guide 11353-1001187-01Syslogd configuration13Configuring the hostFabric OS supports a subset of UNIX-style m

Fabric OS Troubleshooting and Diagnostics Guide xiii53-1001187-01Additional informationThis section lists additional Brocade and industry-specific doc

114 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Automatic trace dump transfers13switch:admin> syslogdipshow syslog.IP.address.1080:

Fabric OS Troubleshooting and Diagnostics Guide 11553-1001187-01Automatic trace dump transfers13Specifying a remote server1. Verify that the FTP servi

116 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Diagnostic tests not supported by M-EOS 9.6.2 and FOS 6.013The command only prompts yo

Fabric OS Troubleshooting and Diagnostics Guide 11753-1001187-01AppendixASwitch TypeThe switchType is a displayed field listed when you run the switch

118 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Switch TypeA64 5300 GoldenEye2 8 Gbit 64-port switch66 5100 Condor2 8 Gbit 32-port swi

Fabric OS Troubleshooting and Diagnostics Guide 11953-1001187-01AppendixBHexadecimalHexadecimal, or simply hex, is a numeral system with a base of 16,

120 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01HexadecimalBDecimal11121314151617181920Hex 0b0c0d0e 0f 1011121314Decimal 21 22 23 24 2

Fabric OS Troubleshooting and Diagnostics Guide 12153-1001187-01HexadecimalBHex bf c0c1c2c3c4c5c6c7c8Decimal 201 202 203 204 205 206 207 208 209 210He

122 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01HexadecimalB

Fabric OS Troubleshooting and Diagnostics Guide 12353-1001187-01IndexAaccount managementlost password recovery options, 54recovering forgotten passwor

xiv Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01• Detailed description of the problem, including the switch or fabric behavior immedia

124 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01EE_Port, 21, 27failed to come online, 3failed to form, 3enc_out errors, 32equipment st

Fabric OS Troubleshooting and Diagnostics Guide 12553-1001187-01FTRACEconfiguring, 83displaying for a tunnel, 85FICON issues, 83functional tests, 34GG

126 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Ooutput from a console, 6Ppasswords, recovering forgotten, 53pathInfo, 17performance p

Fabric OS Troubleshooting and Diagnostics Guide 12753-1001187-01switch status, viewing, 102switch temperature, 13switchType, 117symptoms, 2synchronize

128 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01

Fabric OS Troubleshooting and Diagnostics Guide xv53-1001187-01Provide the title and version number of the document and as much detail as possible abo

xvi Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01

Fabric OS Troubleshooting and Diagnostics Guide 153-1001187-01Chapter1Introduction to TroubleshootingIn this chapter•Troubleshooting overview . . . .

2 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Most common problem areas1Most common problem areasTable 1 identifies the most common pr

Fabric OS Troubleshooting and Diagnostics Guide 353-1001187-01Questions for common symptoms1TABLE 2 Common symptomsSymptom Areas to check ChapterBlade

Copyright © 2008 Brocade Communications Systems, Inc. All Rights Reserved.Brocade, Fabric OS, File Lifecycle Manager, MyView, and StorageX are registe

4 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Questions for common symptoms1No connectivity between host and storage CablesSCSI timeou

Fabric OS Troubleshooting and Diagnostics Guide 553-1001187-01Gathering information for your switch support provider1Gathering information for your sw

6 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Gathering information for your switch support provider1Capturing a supportSave1. Connect

Fabric OS Troubleshooting and Diagnostics Guide 753-1001187-01Building a case for your switch support provider1Capturing command output1. Connect to t

8 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Building a case for your switch support provider1Use the switchShow command to determine

Fabric OS Troubleshooting and Diagnostics Guide 953-1001187-01Building a case for your switch support provider1• Storage information: Disk/tape type

10 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Building a case for your switch support provider1

Fabric OS Troubleshooting and Diagnostics Guide 1153-1001187-01Chapter2General IssuesIn this chapter•Licensing issues . . . . . . . . . . . . . . . .

12 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Switch message logs2Switch message logsSwitch message logs (RAS logs) contain informati

Fabric OS Troubleshooting and Diagnostics Guide 1353-1001187-01Switch message logs2Symptom I2C bus errors are appearing in the switch log.Probable cau

Fabric OS Troubleshooting and Diagnostics Guide iii53-1001187-01ContentsAbout This DocumentIn this chapter . . . . . . . . . . . . . . . . . . . . . .

14 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Switch boot issues2Checking the power supply1. Log in to the switch as user.2. Enter th

Fabric OS Troubleshooting and Diagnostics Guide 1553-1001187-01Fibre Channel Router connectivity2Fibre Channel Router connectivityThis section describ

16 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Fibre Channel Router connectivity2On the edge Fabric OS switch, make sure that the sour

Fabric OS Troubleshooting and Diagnostics Guide 1753-1001187-01Fibre Channel Router connectivity2Round-trip min/avg/max = 1012/1136/1442 usecPinging 2

18 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Fibre Channel Router connectivity2Where: To display basic path information to a specifi

Fabric OS Troubleshooting and Diagnostics Guide 1953-1001187-01Fibre Channel Router connectivity2B/s (1s) - - 0 0B/s (64s) - - 1 1Txcrdz (1s)

20 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Third party applications2Third party applicationsSymptom Replication application works

Fabric OS Troubleshooting and Diagnostics Guide 2153-1001187-01Chapter3Connections IssuesIn this chapter•Port initialization and FCP auto discovery pr

22 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Port initialization and FCP auto discovery process3• VEX_Port—A virtual EX_Port. It con

Fabric OS Troubleshooting and Diagnostics Guide 2353-1001187-01Link issues3Link issuesSymptom Port LEDs are flashing.Probable cause and recommended ac

iv Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Time issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Connection problems3• If the missing device is not logically connected, check the devic

Fabric OS Troubleshooting and Diagnostics Guide 2553-1001187-01Link failures3 FC4s: FCP [SEAGATE ST318304FC 0005] Fabric Port Name: 20:0e:0

26 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Link failures3Determining a successful negotiation1. Enter the portCfgShow command to d

Fabric OS Troubleshooting and Diagnostics Guide 2753-1001187-01Link failures33. Skip point-to-point initialization by using the portCfgLport Command.T

28 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Marginal links3NOTEIf you are unable to read a portlog dump, contact your switch suppor

Fabric OS Troubleshooting and Diagnostics Guide 2953-1001187-01Device login issues35. Run the portLoopbackTest on the marginal port. You will need an

30 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Device login issues3 13 13 -- N8 No_Module 14 14 -- N8 No_Modul

Fabric OS Troubleshooting and Diagnostics Guide 3153-1001187-01Device login issues3 72 72 -- N8 No_Module 73 73 -- N8 No_Modul

32 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Device login issues3• The enc_out are errors that occur outside the frame and usually i

Fabric OS Troubleshooting and Diagnostics Guide 3353-1001187-01Device login issues3NOTEWhen two shared ports on an FC4-48 blade are receiving traffic

Fabric OS Troubleshooting and Diagnostics Guide v53-1001187-01Chapter 5 FirmwareDownload ErrorsIn this chapter . . . . . . . . . . . . . . . . . . . .

34 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Media-related issues316:52:42.572 PORT Tx3 8 20 22000000,00000000,ffffff

Fabric OS Troubleshooting and Diagnostics Guide 3553-1001187-01Segmented fabrics3[-nframes count]—Specify the number of frames to send.[-lb_mode mode]

36 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Segmented fabrics3• R_A_TOV• E_D_TOV• Data field size• Sequence level switching• Disabl

Fabric OS Troubleshooting and Diagnostics Guide 3753-1001187-01Segmented fabrics3Reconciling a domain ID conflictIf a domain ID conflict appears, the

38 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Segmented fabrics3

Fabric OS Troubleshooting and Diagnostics Guide 3953-1001187-01Chapter4Configuration IssuesIn this chapter•Configupload and download issues . . . . .

40 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Configupload and download issues4• The FTP or SCP server’s IP address cannot be contact

Fabric OS Troubleshooting and Diagnostics Guide 4153-1001187-01Configupload and download issues4• On a Virtual Fabric-enabled switch, you do not have

42 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Brocade configuration form4Messages captured in the logsConfiguration download generate

Fabric OS Troubleshooting and Diagnostics Guide 4353-1001187-01Chapter5FirmwareDownload ErrorsIn this chapter•Blade troubleshooting tips . . . . . . .

vi Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Buffer credit issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Firmware download issues5Symptom The blade is faulty (issue slotShow to confirm).Probab

Fabric OS Troubleshooting and Diagnostics Guide 4553-1001187-01Firmware download issues5The server is inaccessible or firmware path is invalid. Please

46 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Troubleshooting firmwareDownload5Troubleshooting firmwareDownloadA network diagnostic s

Fabric OS Troubleshooting and Diagnostics Guide 4753-1001187-01Considerations for downgrading firmware5Considerations for downgrading firmwareTo avoid

48 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Considerations for downgrading firmware5Server Name or IP Address: 192.168.32.10Network

Fabric OS Troubleshooting and Diagnostics Guide 4953-1001187-01Considerations for downgrading firmware5Message Cannot upgrade directly to v6.0. Upgrad

50 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Considerations for downgrading firmware5Message Only platform option 5 is supported by

Fabric OS Troubleshooting and Diagnostics Guide 5153-1001187-01Considerations for downgrading firmware5Message Downgrade is not allowed because VF is

52 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Considerations for downgrading firmware5RoutingThis message refers to any route setting

Fabric OS Troubleshooting and Diagnostics Guide 5353-1001187-01Chapter6Security IssuesIn this chapter•Password issues . . . . . . . . . . . . . . . .

Fabric OS Troubleshooting and Diagnostics Guide vii53-1001187-01Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

54 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Device authentication issues6Symptom Unable to log into the boot PROM.Probable cause an

Fabric OS Troubleshooting and Diagnostics Guide 5553-1001187-01Protocol and certificate management issues6Symptom Switch is unable to form an F_Port.P

56 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01SNMP issues6• If not sure about the problem area, collect a supportSave -n from all swi

Fabric OS Troubleshooting and Diagnostics Guide 5753-1001187-01FIPS issues6The results of all self-tests, for both power-up and conditional, are recor

58 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01FIPS issues6

Fabric OS Troubleshooting and Diagnostics Guide 5953-1001187-01Chapter7Virtual FabricsIn this chapter•General Virtual Fabric troubleshooting . . . .

60 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Fabric identification issues7• VE_Ports cannot exist in a logical switch that has XISL

Fabric OS Troubleshooting and Diagnostics Guide 6153-1001187-01Base switch issues7Symptom The switch with domain <domain> with firmware version

62 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Logical switch issues7Logical switch issuesCAUTIONWhen a logical switch is created, all

Fabric OS Troubleshooting and Diagnostics Guide 6353-1001187-01Switch configuration blade compatibility7Symptom Unable to remove ports from their curr

viii Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Appendix A Switch TypeAppendix B HexadecimalIndex

64 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Switch configuration blade compatibility7Gathering additional informationFor Virtual Fa

Fabric OS Troubleshooting and Diagnostics Guide 6553-1001187-01Chapter8ISL Trunking IssuesIn this chapter•Link issues . . . . . . . . . . . . . . . .

66 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Buffer credit issues8• Port trunking is disabled.• The port is not an E_Port.• The port

Fabric OS Troubleshooting and Diagnostics Guide 6753-1001187-01Chapter9Zone IssuesIn this chapter•Overview of corrective action . . . . . . . . . . .

68 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Segmented fabrics9If you enter the cfgShow command to display information about all zon

Fabric OS Troubleshooting and Diagnostics Guide 6953-1001187-01Zone conflicts9Symptom Zone conflict appears in logs and fabric is segmented.Probable c

70 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Zone conflicts9ATTENTIONBe careful using the cfgClear command because it deletes the de

Fabric OS Troubleshooting and Diagnostics Guide 7153-1001187-01Zone conflicts9ATTENTIONThe cfgClear command clears the zoning database on the switch w

72 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Zone conflicts9Reordering the zone member list 1. Obtain the output from the cfgShow co

Fabric OS Troubleshooting and Diagnostics Guide 7353-1001187-01Zone conflicts9Following is sample output from the fcPing command in which one device a

Fabric OS Troubleshooting and Diagnostics Guide ix53-1001187-01About This DocumentIn this chapter•How this document is organized . . . . . . . . . .

74 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Gathering additional information9switch:admin> defzone --showDefault Zone Access Mod

Fabric OS Troubleshooting and Diagnostics Guide 7553-1001187-01Chapter10FCIP IssuesIn this chapter•FCIP tunnel issues . . . . . . . . . . . . . . . .

76 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01FCIP tunnel issues10Reply from 11.1.1.2: bytes=64 rtt=0ms ttl=64Ping Statistics for 11.

Fabric OS Troubleshooting and Diagnostics Guide 7753-1001187-01FCIP links10Symptom FCIP tunnel goes online and offline.Probable cause and recommended

78 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01FCIP links10• IP addresses are retained by slot in the system. If FR4-18i blades are mo

Fabric OS Troubleshooting and Diagnostics Guide 7953-1001187-01Port mirroring10• Ping and traceroute utility• Performance to determine path characteri

80 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01Port mirroring10• FC4-16 16-port blade • FC4-48 48-port blade• FC8-16 16-port blade• FC

Fabric OS Troubleshooting and Diagnostics Guide 8153-1001187-01Port mirroring10For example, in a three-domain fabric containing switches 4100A, 4100B,

82 Fabric OS Troubleshooting and Diagnostics Guide53-1001187-01FTRACE concepts10The configuration database keeps information about the number of port

Fabric OS Troubleshooting and Diagnostics Guide 8353-1001187-01FTRACE concepts10Tracing every FICON event affects performance. To avoid this, the defa