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Dell Brocade 6520 Fabric OS Troubleshooting and Diagnostics Guide v7.1.0 - Page 114

Automatic mode configuration, Brocade Fabric OS Administrator's Guide or

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10 Diagnostic Port (D_Port) HBAs also support testing in dynamic mode, described as follows. If D_Port is enabled on the switch only, it forces the connected adapter port into D_Port mode. The switch initiates and stops tests on the adapter port as specified by the switch configuration. Testing is started by means of BCU commands or HCM options. In dynamic mode you can disable the physical port by using the bcu port --disable command to exit D_Port mode. When you enable the port again, the switch will again force the adapter port into D_Port mode if the switch port is still enabled as a D_Port. The topics in this section apply to Topology 4. • "Automatic mode configuration" on page 98 • "Dynamic mode configuration" on page 98 • "BCU D_Port commands" on page 99 • "Limitations and considerations for D_Port with HBAs" on page 99 Automatic mode configuration As in Topologies 1 through 3, this procedure enables a D_Port diagnostic session from the connected switch. After the default test suite is run automatically, you can run specific tests manually to obtain additional detail. 1. Disable the switch port by using the Fabric OS portDisable [slot/]port command. 2. Configure the switch port that you want to enable as a D_Port using Fabric OS portCfgDport - -enable [slot/]port command. 3. Disable the adapter port by using the adapter bcu port - -disable command. 4. Enable the switch port by using the Fabric OS portenable [slot/]port command. 5. Enable the adapter port as a D_Port by using the adapter bcu diag - -dportenable command and configure test parameters. For details on switch configuration, refer to the Brocade Fabric OS Administrator's Guide or Brocade Fabric OS Command Reference. For more details on adapter configuration, refer to the Brocade Fabric Adapters Administrator's Guide. Dynamic mode configuration This procedure enables a dynamic D_Port diagnostic session from the connected switch to an HBA. NOTE D_Port on HBAs is supported only on 16-Gbps SFPs. 1. Disable the switch port by using the Fabric OS portDisable [slot/]port command. 2. Enable the switch port as a D_Port by using the portCfgDport - -enable [slot/]port command. 3. Enable the switch port by using the portenable [slot/]port command. NOTE To verify whether the port is in D_Port mode, use the bcu port - -list command and look for a "D" in the listing. 98 Fabric OS Troubleshooting and Diagnostics Guide 53-1002751-01

Section	Page
About This Document	11
How this document is organized	11
Supported hardware and software	12
What’s new in this document	12
Document conventions	13
Text formatting	13
Command syntax conventions	13
Command examples	13
Notes, cautions, and warnings	14
Key terms	14
Additional information	14
Brocade resources	14
Other industry resources	15
Getting technical help	15
Document feedback	16
Introduction	17
Troubleshooting overview	17
Network time protocol	17
Most common problem areas	18
Questions for common symptoms	18
Gathering information for your switch support provider	21
Setting up your switch for FTP	21
Capturing a supportSave	21
Capturing output from a console	22
Capturing command output	23
Building a case for your switch support provider	23
Basic information	23
Detailed problem information	24
Gathering additional information	25
General	27
Licenses	27
Time	27
Frame Viewer	28
Switch message logs	28
Switch boot	29
Rolling Reboot Detection	30
FC-FC routing connectivity	32
Generating and routing an ECHO	32
Superping	33
Route and statistical information	36
Performance issues	37
Connectivity	39
Port initialization and FCP auto-discovery process	39
Link issues	41
Connection problems	41
Checking the physical connection	41
Checking the logical connection	42
Checking the Name Server	42
Link failures	44
Determining a successful speed negotiation	44
Checking for a loop initialization failure	45
Checking for a point-to-point initialization failure	45
Correcting a port that has come up in the wrong mode	46
Marginal links	46
Troubleshooting a marginal link	47
Device login issues	49
Pinpointing problems with device logins	49
Media-related issues	51
Testing a port’s external transmit and receive path	52
Testing a switch’s internal components	52
Testing components to and from the HBA	52
Segmented fabrics	52
Reconciling fabric parameters individually	53
Downloading a correct configuration	54
Reconciling a domain ID conflict	54
Reconciling incompatible software features	55
Port mirroring	56
In-Order Delivery	56
Port mirroring considerations	56
Supported platforms	57
Maximum mirror connections	58
Configuring a port to be a mirror port	58
Adding a port mirror connection	58
Deleting a port mirror connection	59
Displaying port mirror connections	59
Configuration	61
Configuration upload and download issues	61
Gathering additional information	64
Brocade configuration form	64
Firmware Download Errors	67
Blade troubleshooting tips	67
Firmware download issues	68
Troubleshooting with the firmwareDownload command	70
Gathering additional information	71
USB error handling	71
Considerations for downgrading firmware	72
Preinstallation messages	72
Blade types	74
Firmware versions	74
Platform	75
Routing	75
Security	77
Passwords	77
Password recovery options	78
Device authentication	78
Protocol and certificate management	79
Gathering additional information	79
SNMP	80
Gathering additional information	80
FIPS	80
Virtual Fabrics	81
General Virtual Fabrics troubleshooting	81
Fabric identification issues	82
Logical Fabric issues	82
Base switch issues	83
Logical switch issues	84
Switch configuration blade compatibility	85
Gathering additional information	86
ISL Trunking	87
Link issues	87
Buffer credit issues	88
Getting out of buffer-limited mode	88
Zoning	89
Overview of corrective action	89
Verifying a fabric merge problem	89
Verifying a TI zone problem	89
Segmented fabrics	90
Zone conflicts	91
Correcting a fabric merge problem quickly	92
Changing the default zone access	93
Editing zone configuration members	93
Reordering the zone member list	93
Checking for Fibre Channel connectivity problems	94
Checking for zoning problems	95
Gathering additional information	96
Diagnostic Features	97
About Fabric OS diagnostics	97
Diagnostic information	97
Power-on self test	98
Disabling POST	100
Enabling POST	100
Switch status	100
Viewing the overall status of the switch	100
Displaying switch information	101
Displaying the uptime for a switch	102
Using the SpinFab and portTest commands	103
Debugging spinFab errors	104
Clearing the error counters	105
Enabling a port	105
Disabling a port	106
Diagnostic Port (D_Port)	106
Understanding D_Port	107
Supported topologies	109
Using D_Port without HBAs	111
Using D_Port with HBAs	113
Controlling testing	116
Example test scenarios and output	116
Port information	121
Viewing the status of a port	121
Displaying the port statistics	122
Displaying a summary of port errors for a switch	123
Equipment status	124
Checking the temperature, fan, and power supply	124
Checking the status of the fans	124
Checking the status of a power supply	125
Checking temperature status	125
System message log	126
Displaying the system message log, with no page breaks	126
Displaying the system message log one message at a time	127
Clearing the system message log	127
Port log	127
Viewing the port log	127
Syslogd configuration	129
Configuring the host	129
Configuring the switch	130
Automatic trace dump transfers	131
Specifying a remote server	131
Enabling the automatic transfer of trace dumps	131
Setting up periodic checking of the remote server	131
Saving comprehensive diagnostic files to the server	132
Switch Type and Blade ID	133
Hexadecimal Conversion	137
Example conversion of the hexadecimal triplet Ox616000	137
Decimal-to-hexadecimal conversion table	138

Match case Limit results 1 per page

Fabric OS Troubleshooting and Diagnostics Guide

53-1002751-01

Diagnostic Port (D_Port)

HBAs also support testing in

dynamic mode

, described as follows. If D_Port is enabled on the

switch only, it forces the connected adapter port into D_Port mode. The switch initiates and stops

tests on the adapter port as specified by the switch configuration. Testing is started by means of

BCU commands or HCM options.

In dynamic mode you can disable the physical port by using the

bcu port --disable

command to exit

D_Port mode. When you enable the port again, the switch will again force the adapter port into

D_Port mode if the switch port is still enabled as a D_Port.

The topics in this section apply to Topology 4.

•

“Automatic mode configuration”

on page 98

•

“Dynamic mode configuration”

on page 98

•

“BCU D_Port commands”

on page 99

•

“Limitations and considerations for D_Port with HBAs”

on page 99

Automatic mode configuration

As in Topologies 1 through 3, this procedure enables a D_Port diagnostic session from the

connected switch. After the default test suite is run automatically, you can run specific tests

manually to obtain additional detail.

Disable the switch port by using the Fabric OS

portDisable

[slot/]port

command.

Configure the switch port that you want to enable as a D_Port using Fabric OS

portCfgDport

- -enable

[slot/]port

command.

Disable the adapter port by using the adapter

bcu port - -disable

command.

Enable the switch port by using the Fabric OS

portenable

[slot/]port

command.

Enable the adapter port as a D_Port by using the adapter

bcu diag - -dportenable

command

and configure test parameters.

For details on switch configuration, refer to the

Brocade Fabric OS Administrator’s Guide or

Brocade Fabric OS Command Reference

. For more details on adapter configuration, refer to the

Brocade Fabric Adapters Administrator’s Guide

Dynamic mode configuration

This procedure enables a dynamic D_Port diagnostic session from the connected switch to an HBA.

NOTE

D_Port on HBAs is supported only on 16-Gbps SFPs.

Disable the switch port by using the Fabric OS

portDisable

[slot/]port

command.

Enable the switch port as a D_Port by using the

portCfgDport - -enabl

e [slot/]port

command.

Enable the switch port by using the

portenable

[slot/]port

command.

NOTE

To verify whether the port is in D_Port mode, use the

bcu port - -list

command and look for a “D” in

the listing.