Supporting Fabric OS 8.2

1 Supporting Fabric OS GUIDEB rocade Fabric OS Troubleshooting andDiagnostics User guide , September 2018 Copyright 2018 Brocade Communications Systems LLC. All Rights Reserved. Brocade and the stylized B logo are among the trademarks of BrocadeCommunications Systems LLC. Broadcom, the pulse logo, and Connecting everything are among the trademarks of Broadcom. The term "Broadcom"refers to Broadcom Inc. and/or its , a Broadcom Inc. Company, reserves the right to make changes without further notice to any products or data herein to improve reliability,function, or design. Information furnished by Brocade is believed to be accurate and reliable. However, Brocade does not assume any liability arising out ofthe application or use of this information, nor the application or use of any product or circuit described herein, neither does it convey any license under itspatent rights nor the rights of product described by this document may contain open source software covered by the GNU General Public License or other open source licenseagreements.

2 To find out which open source software is included in Brocade products, view the licensing terms applicable to the open source software, andobtain a copy of the programming source code, please visit Fabric OS Troubleshooting and Diagnostics User guide , This 7 What's new in this document for Fabric OS Hardware and 7 Brocade Gen 5 (16Gb/s) Fixed-Port Gen 5 (16Gb/s) Gen 6 (32Gb/s) Fixed-Port Gen 6 (32Gb/s) Brocade Technical Time Common Problem for common Information for Your Switch Support up your switch for The supportsave Output From a Command a Case for Your Switch Support Basic Detailed Problem Additional message Boot.

3 21 Rolling Reboot routing 23 Generating and routing an and statistical initialization and FCP auto-discovery 31 Connection the physical the logical the Name Server ..34 Link a successful speed for a loop initialization failure ..36 Brocade Fabric OS Troubleshooting and Diagnostics User guide , for a point-to-point initialization 36 Correcting a port that has come up in the wrong mode .. 37 Marginal a marginal login issues on Fabric problems with device login issues on Access 42 Media-related the external transmit and receive path of a the internal components of a components to and from the 44 Reconciling Fabric parameters a correct a domain ID incompatible software upload and download additional configuration Download troubleshooting 52 Firmware download with the firmwareDownload additional error for downgrading 58 Security.

4 60 User account recovery authentication ..61 Protocol and certificate management ..61 Gathering additional ..62 Virtual 64 General Virtual Fabrics identification Fabric 65 Base switch switch configuration blade additional 67 ISL Trunking .. 68 Brocade Fabric OS Troubleshooting and Diagnostics User guide , Link credit out of buffer-limited mode .. Corrective a Fabric merge a TI zone 71 Zone 72 Resolving zoning 73 Correcting a Fabric merge problem quickly ..73 Changing the default zone zone configuration the zone member list ..74 Checking for Fibre Channel connectivity for zoning additional 76 Diagnostic OS the overall status of the switch the uptime for a the spinFab and portTest spinFab the error 85 Enabling a a the status of a port.

5 86 Displaying the port a summary of port errors for a the temperature, fan, and power 89 Checking the status of the the status of a power temperature message the system message log with no page the system message log one message at a the system message log ..91 Port the port the Fabric OS Troubleshooting and Diagnostics User guide , the trace dump a remote the automatic transfer of trace up periodic checking of the remote comprehensive diagnostic files to the trace dump files FTP dump ClearLink Diagnostic support for 32 Gbps 97 Limitations and 98 Supported platforms for requirements for configuration modes and limitations and considerations for D_Port 1: 2: 3: Access port mappings on an Access 4.

6 HBA to a D_Port in static-static mode between a D_Port in static 110 Using D_Ports in dynamic D_Port mode between switches and a D_Port in static mode between a switch and an non-Brocade HBAs for D_Port D_Port Bus Adapter limitations and considerations for SFP and link status with an a D_Port in on-demand mode ..118 Using the fabriclog buffers for long-distance for audit D_Port show Type and Blade conversion of the hexadecimal triplet conversion 127 Revision 129 FOS-821-TD-UG101; September 28, ; August 28, Fabric OS Troubleshooting and Diagnostics User guide , About This What's new in this document for Fabric OS Supported Hardware and Contacting Brocade Technical Document This GuideThis book is a companion guide to be used in conjunction with the Brocade Fabric OS Administration guide .

7 Although it provides manycommon troubleshooting tips and techniques, it does not teach troubleshooting methodology. Troubleshooting should begin at thecenter of the SAN the Fabric . Because switches are located between the hosts and the storage devices and have visibility into both sidesof the storage network, starting with them can help narrow the search. After eliminating the possibility of a fault within the Fabric , see if theproblem is on the storage side or the host side, and continue a more detailed diagnosis from there. Using this approach can quicklypinpoint and isolate problems. For example, if a host cannot detect a storage device, run the switchshow command to determine if thestorage device is logically connected to the switch.

8 If not, focus first on the switch directly connected to storage. Use your vendor-supplied storage diagnostic tools to better understand why the storage device is not visible to the switch. If the storage device can bedetected by the switch, and the host still cannot detect the storage device, then there is still a problem between the host and the 's new in this document for Fabric OS addition to general changes to improve clarity and comprehension, the following changes have been made to this document tosupport this release: Revised the publication number. Revised the "Rolling Reboot Detection" topic. Added Revision History to the document. Updated the document Hardware and SoftwareAlthough many different software and hardware configurations are tested and supported by Brocade for Fabric OS , documentingall possible configurations and scenarios is beyond the scope of this following hardware platforms are supported by Brocade Fabric OS Gen 5 (16Gb/s)

9 Fixed-Port Switches Brocade 6505 Switch Brocade 6510 Switch Brocade 6520 Switch Brocade M6505 Blade Server SAN I/O moduleBrocade Fabric OS Troubleshooting and Diagnostics User guide , Brocade 6542 Blade Server SAN I/O module Brocade 6543 Blade Server SAN I/O module Brocade 6545 Blade Server SAN I/O module Brocade 6546 Blade Server SAN I/O module Brocade 6547 Blade Server SAN I/O module Brocade 6548 Blade Server SAN I/O module Brocade 6558 Blade Server SAN I/O module Brocade 7840 Extension SwitchBrocade Gen 5 (16Gb/s) DirectorsFor ease of reference, Brocade chassis-based storage systems are standardizing on the term director . The legacy term backbone canbe used interchangeably with the term director.

10 Brocade DCX 8510-4 Director Brocade DCX 8510-8 DirectorBrocade Gen 6 (32Gb/s) Fixed-Port Switches Brocade G610 Switch Brocade G620 Switch Brocade G630 Switch Brocade 7810 Extension SwitchBrocade Gen 6 (32Gb/s) Directors Brocade X6-4 Director Brocade X6-8 DirectorContacting Brocade Technical SupportFor product support information and the latest information on contacting the Technical Assistance Center, go to If you have purchased Brocade product support directly from Brocade, useone of the following methods to contact the Brocade Technical Assistance Center nonurgent issues, the preferred method is to go to MyBrocade( ) and then go to one of the following sites: My Cases Software Downloads Licensing tools Knowledge BaseRequired for Severity 1-Critical and Severity 2-High issues: North America: 1-800-752-8061 (Toll-free) International: 1-669-234-1001 (Not toll-free)Toll-free numbers are available in many countries and are listed at Brocade Technical SupportBrocade Fabric OS Troubleshooting and Diagnostics User guide , you purchased Brocade product support from a Brocade OEM/solution provider, contact your OEM/solution provider for all yourproduct support needs.