Home » HP Manuals » Hubs & Switches » HP AM866A » Manual Viewer

HP AM866A Brocade Troubleshooting and Diagnostics Guide v6.1.0 (53-1000853-01, - Page 90

FTRACE concepts, Tracing Fibre Channel information

UPC - 884420064602

Add to My Manuals
Save this manual to your list of manuals

Page 90 highlights

9 FTRACE concepts Displaying port mirror connections 1. Log in to the switch as admin. 2. Type portMirror --show You should see output similar to the following: switch:admin> portmirror --show Number of mirror connection(s) configured: 4 Mirror_Port SID DID State 18 0x070400 0x0718e2 Enabled 18 0x070400 0x0718e3 Enabled 18 0x070400 0x0718ef Enabled 18 0x070400 0x0718e0 Enabled FTRACE concepts FTRACE is a support tool that can be used in a manner similar to that of a channel protocol analyzer. FTRACE enables troubleshooting of problems using a Telnet session rather than sending an analyzer or technical support personnel to the site. FTRACE record events that occur on the FC interface, including user defined messages and events. FTRACE includes the ability to freeze traces on certain events, and to retain the trace information for future examination. Tracing Fibre Channel information Frame trace (FTRACE) records user-defined messages and events on the Brocade FR4-18i and the 7500. The portCfg command uses the ftrace option to capture trace information on a per FCIP tunnel basis. You can configure up to eight FCIP tunnels on a single physical GE port. FTRACE is subject to the same FCIP tunnel limitations, such as tunnel disruption, port of switch disable or enable, and reboot requirements. Tracing every FICON event affects performance. To avoid this, the default trace mask is set to 0x80000C7b. The mask is a filter where a bit specifies which frames and events will be captured and displayed. For troubleshooting, you should set the trace mask to 0-0xFFFFFFFF. The following table describes the configurable FTRACE parameters. TABLE 15 FTRACE configurable parameters Parameter Default Range Syntax Auto check Out Buffers Display Mask Enable Post Percentage Trace Mask Trigger Mask False 0 0xFFFF FFFF False 5 0x8000 0x00000003 T/F 0-8 0-0xFFFFFFFF T/F 0-100 0-0xFFFFFFFF 0-0xFFFFFFFF Boolean Integer Integer Boolean Integer Integer Integer 76 Fabric OS Troubleshooting and Diagnostics Guide 53-1000853-01

Section	Page
Contents	3
About This Document	9
In this chapter	9
How this document is organized	9
Supported hardware and software	10
What’s new in this document	10
Document conventions	11
Text formatting	11
Notes, cautions, and warnings	11
Key terms	12
Additional information	12
Brocade resources	12
Other industry resources	12
Getting technical help	13
Document feedback	14
Introduction to Troubleshooting	15
In this chapter	15
About troubleshooting	15
Network time protocol	15
Most common problem areas	16
Questions for common symptoms	16
Gathering information for your switch support provider	19
Setting up your switch for FTP	19
Capturing a supportSave	20
Capturing a supportShow	20
Capturing output from a console	20
Capturing command output	20
Building a case for your switch support provider	21
Basic switch information	21
Detailed problem information	21
Gathering additional information	23
General Issues	25
In this chapter	25
Licensing issues	25
Switch Message Logs	25
Checking fan components	26
Checking the switch temperature	27
Checking the power supply	27
Checking the temperature, fan, and power supply	27
Fibre Channel Routing	27
Checking for Fibre Channel connectivity problems	28
Third party applications	29
Connections Issues	31
In this chapter	31
Port initialization and FCP auto discovery process	31
Link issues	33
Connection problems	33
Checking the logical connection	33
Checking the name server (NS)	34
Link failures	35
Determining a successful negotiation	36
Checking for a loop initialization failure	36
Checking for a point-to-point initialization failure	37
Correcting a port that has come up in the wrong mode	37
Marginal links	38
Troubleshooting a marginal link	38
Device login issues	39
Pinpointing problems with device logins	41
Media-related issues	43
Testing a port’s external transmit and receive path	44
Testing a switch’s internal components	44
Testing components to and from the HBA	44
Segmented fabrics	45
Reconciling fabric parameters individually	45
Downloading a correct configuration	46
Reconciling a domain ID conflict	46
Configuration Issues	47
In this chapter	47
Configupload and download issues	47
Gathering additional information	49
Brocade configuration form	50
FirmwareDownload Errors	51
In this chapter	51
Blade troubleshooting tips	51
Firmware download issues	52
Troubleshooting firmwareDownload	55
Gathering additional information	55
Brocade DCX error handling	55
USB error handling	58
Considerations for downgrading firmware	58
Preinstallation messages	58
Blade types	59
Firmware versions	61
IP settings	62
Platform	63
Port settings	65
Routing	68
Zoning	68
Security Issues	71
In this chapter	71
Password issues	71
Password recovery options	72
Protocol and certificate management issues	72
Gathering additional information	73
SNMP issues	74
Gathering additional information	74
FIPS issues	74
ISL Trunking Issues	75
In this chapter	75
Link issues	75
Buffer credit issues	76
Zone Issues	77
In this chapter	77
Overview of corrective action	77
Verifying a fabric merge problem	77
Segmented fabrics	77
Zone conflicts	78
Correcting a fabric merge problem quickly	79
Editing zone configuration members	80
Reordering the zone member list	80
Checking for Fibre Channel connectivity problems	80
Checking for zoning problems	82
Gathering additional information	82
FCIP Issues	83
In this chapter	83
FCIP tunnel issues	83
FCIP links	85
Gathering additional information	86
Port mirroring	86
Supported hardware	87
Port mirroring considerations	88
Port mirroring management	89
FTRACE concepts	90
Tracing Fibre Channel information	90
FICON Fabric Issues	93
In this chapter	93
FICON issues	93
Troubleshooting FICON	94
General information to gather for all cases	94
Identifying ports	95
Single-switch topology checklist	96
Cascade mode topology checklist	96
Gathering additional information	96
Troubleshooting FICON CUP	97
Troubleshooting FICON NPIV	99
iSCSI Issues	101
In this chapter	101
Connectivity	101
Zoning	103
Authentication	104
Working With Diagnostic Features	105
In this chapter	105
About Fabric OS diagnostics	105
Diagnostic information	106
Power-on self test	106
Switch status	108
Viewing the overall status of the switch	108
Displaying switch information	109
Displaying the uptime for a switch	109
Port information	110
Viewing the status of a port	110
Displaying the port statistics	111
Displaying a summary of port errors for a switch	112
Equipment status	113
Displaying the status of the fans	113
Displaying the status of a power supply	113
Displaying temperature status	114
System message log	114
Displaying the system message log, with no page breaks	114
Displaying the system message log one message at a time	114
Clearing the system message log	115
Port log	115
Viewing the port log	115
Syslogd configuration	116
Configuring the host	117
Configuring the switch	117
Automatic trace dump transfers	118
Specifying a remote server	119
Enabling the automatic transfer of trace dumps	119
Setting up periodic checking of the remote server	119
Saving comprehensive diagnostic files to the server	119
Diagnostic tests not supported by M-EOS 9.6.2 and FOS 6.0	120
Switch Type	121
Hexidecimal	123