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Considerations for downgrading firmware 5 Message The FS8-18 (type 43) blade is not supported by the target firmware. Please use slotshow to find out which slot it is in and remove it first. Probable cause and recommended action The firmware download operation was attempting to downgrade a system to Fabric OS v6.1.1_enc or earlier with one or more Brocade FC8-18 AP blades (blade ID 43) in the system. Brocade Encryption Blade FC8-18 AP blades are not supported on firmware v6.1.1 or earlier, so the firmware download operation failed. Use the slotShow command to display which slots the Brocade FC8-18 AP blades occupy. Physically remove the blades from the chassis, or use the micro-switch to turn the blade off. Retry the firmware download operation. Message Message Message Firmware versions These messages refer to differences between the current firmware and the firmware you are applying to the switch. Cannot upgrade directly to v6.3.0. Upgrade your switch to v6.2.0 first before upgrading to the requested version. Probable cause and recommended action If the switch is running v6.1.0 or earlier, you are not allowed to upgrade directly to v6.3.0 because of the "two-version" rule. Upgrade your switch to Fabric OS version v6.2.0 before upgrading to v6.3.0 Non-disruptive firmwaredownload is not supported when downgrading to 6.1. Please use firmwaredownload -s to download the 6.1 firmware. Probable cause and recommended action If the switch is running v6.2.0, you are not allowed to downgrade directly to v6.1.x without causing disruption to your fabric. Downgrade using the firmwareDownload -s command. For more information on using this command, refer to the Fabric OS Administrator's Guide. Firmwaredownload of blade application firmware failed. Reissue firmwareDownload to recover. Probable cause and recommended action The firmware download operation was attempting to upgrade the SAS image while the blade was operational. Retry the firmwareDownload command again. Platform This message pertains to switch features or fabric-wide settings that must be removed or disabled before downgrading the firmware. Fabric OS Troubleshooting and Diagnostics Guide 59 53-1002150-02

Section	Page
Contents	5
Figures	11
Tables	13
About This Document	15
In this chapter	15
How this document is organized	15
Supported hardware and software	16
What’s new in this document	16
Document conventions	17
Text formatting	17
Command syntax conventions	17
Command examples	17
Notes, cautions, and warnings	18
Key terms	18
Additional information	18
Brocade resources	18
Other industry resources	19
Getting technical help	19
Document feedback	20
Introduction	21
In this chapter	21
Troubleshooting overview	21
Network time protocol	21
Most common problem areas	22
Questions for common symptoms	22
Gathering information for your switch support provider	25
Setting up your switch for FTP	25
Capturing a supportSave	25
Capturing output from a console	26
Capturing command output	27
Building a case for your switch support provider	27
Basic information	27
Detailed problem information	28
Gathering additional information	29
General	31
In this chapter	31
Licenses	31
Time	31
Frame Viewer	32
Switch message logs	32
Switch boot	33
Rolling Reboot Detection	34
FC-FC routing connectivity	36
Generating and routing an ECHO	36
Superping	38
Route and statistical information	40
Performance issues	42
Connectivity	43
In this chapter	43
Port initialization and FCP auto-discovery process	43
Link issues	45
Connection problems	45
Checking the physical connection	45
Checking the logical connection	46
Checking the Name Server	46
Link failures	48
Determining a successful speed negotiation	48
Checking for a loop initialization failure	49
Checking for a point-to-point initialization failure	49
Correcting a port that has come up in the wrong mode	50
Marginal links	50
Troubleshooting a marginal link	51
Device login issues	53
Pinpointing problems with device logins	53
Media-related issues	55
Testing a port’s external transmit and receive path	56
Testing a switch’s internal components	56
Testing components to and from the HBA	56
Segmented fabrics	56
Reconciling fabric parameters individually	57
Downloading a correct configuration	58
Reconciling a domain ID conflict	58
Reconciling incompatible software features	59
Port mirroring	59
In-Order Delivery	60
Port mirroring considerations	60
Supported platforms	61
Maximum mirror connections	62
Configuring a port to be a mirror port	62
Adding a port mirror connection	62
Deleting a port mirror connection	63
Displaying port mirror connections	63
Configuration	65
In this chapter	65
Configuration upload and download issues	65
Gathering additional information	68
Brocade configuration form	68
Firmware Download Errors	71
In this chapter	71
Blade troubleshooting tips	71
Firmware download issues	72
Troubleshooting the firmwareDownload command	75
Gathering additional information	75
USB error handling	75
Considerations for downgrading firmware	76
Preinstallation messages	76
Blade types	78
Firmware versions	79
Platform	79
Routing	80
Security	81
In this chapter	81
Passwords	81
Password recovery options	82
Device authentication	82
Protocol and certificate management	83
Gathering additional information	83
SNMP	84
Gathering additional information	84
FIPS	84
Virtual Fabrics	87
In this chapter	87
General Virtual Fabrics troubleshooting	87
Fabric identification issues	88
Logical Fabric issues	88
Base switch issues	89
Logical switch issues	90
Switch configuration blade compatibility	91
Gathering additional information	92
ISL Trunking	93
In this chapter	93
Link issues	93
Buffer credit issues	94
Getting out of buffer-limited mode	94
Zoning	95
In this chapter	95
Overview of corrective action	95
Verifying a fabric merge problem	95
Verifying a TI zone problem	95
Segmented fabrics	96
Zone conflicts	97
Correcting a fabric merge problem quickly	98
Changing the default zone access	99
Editing zone configuration members	99
Reordering the zone member list	99
Checking for Fibre Channel connectivity problems	100
Checking for zoning problems	101
Gathering additional information	102
Diagnostic Features	103
In this chapter	103
About Fabric OS diagnostics	103
Diagnostic information	103
Power-on self test	104
Disabling POST	106
Enabling POST	106
Switch status	106
Viewing the overall status of the switch	106
Displaying switch information	107
Displaying the uptime for a switch	108
Using the SpinFab and portTest commands	109
Debugging spinFab errors	109
Clearing the error counters	111
Enabling a port	111
Disabling a port	111
Diagnostic Port	112
Disabling D_Port	114
D_Port limitations	115
Port information	115
Viewing the status of a port	115
Displaying the port statistics	116
Displaying a summary of port errors for a switch	117
Equipment status	118
Checking the temperature, fan, and power supply	118
Checking the status of the fans	119
Checking the status of a power supply	119
Checking temperature status	120
System message log	120
Displaying the system message log, with no page breaks	121
Displaying the system message log one message at a time	121
Clearing the system message log	121
Port log	121
Viewing the port log	121
Syslogd configuration	123
Configuring the host	123
Configuring the switch	124
Automatic trace dump transfers	125
Specifying a remote server	125
Enabling the automatic transfer of trace dumps	125
Setting up periodic checking of the remote server	125
Saving comprehensive diagnostic files to the server	126
Hexadecimal overview	129
Example of hexadecimal triplet conversion	129

Match case Limit results 1 per page

Fabric OS Troubleshooting and Diagnostics Guide

53-1002150-02

Considerations for downgrading firmware

Message

The FS8-18 (type 43) blade is not supported by the target firmware. Please use slotshow to find out

which slot it is in and remove it first.

Probable cause and recommended action

The firmware download operation was attempting to downgrade a system to Fabric OS v6.1.1_enc

or earlier with one or more Brocade FC8-18 AP blades (blade ID 43) in the system. Brocade

Encryption Blade FC8-18 AP blades are not supported on firmware v6.1.1 or earlier, so the

firmware download operation failed.

Use the

slotShow

command to display which slots the Brocade FC8-18 AP blades occupy. Physically

remove the blades from the chassis, or use the micro-switch to turn the blade off. Retry the

firmware download operation.

Firmware versions

These messages refer to differences between the current firmware and the firmware you are

applying to the switch.

Message

Cannot upgrade directly to v6.3.0. Upgrade your switch to v6.2.0 first before upgrading to the

requested version.

Probable cause and recommended action

If the switch is running v6.1.0 or earlier, you are not allowed to upgrade directly to v6.3.0 because

of the “two-version” rule.

Upgrade your switch to Fabric OS version v6.2.0 before upgrading to v6.3.0

Message

Non-disruptive firmwaredownload is not supported when downgrading to 6.1. Please use

firmwaredownload -s to download the 6.1 firmware.

Probable cause and recommended action

If the switch is running v6.2.0, you are not allowed to downgrade directly to v6.1.x without causing

disruption to your fabric.

Downgrade using the

firmwareDownload -s

command. For more information on using this

command, refer to the

Fabric OS Administrator’s Guide

Message

Firmwaredownload of blade application firmware failed. Reissue firmwareDownload to recover.

Probable cause and recommended action

The firmware download operation was attempting to upgrade the SAS image while the blade was

operational.

Retry the

firmwareDownload

command again.

Platform

This message pertains to switch features or fabric-wide settings that must be removed or disabled

before downgrading the firmware.