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SecureIron, ServerIron, StorageX, and TurboIron are registered trademarks, and DCFM, Extraordinary Networks, and SAN Health
are trademarks of Brocade Communications Systems, Inc., in the United States and/or in other countries. All other brands,
products, or service names are or may be trademarks or service marks of, and are used to identify, products or services of their
respective owners.
Notice: This document is for informational purposes only and does not set forth any warranty, expressed or implied, concerning
any equipment, equipment feature, or service offered or to be offered by Brocade. Brocade reserves the right to make changes to
this document at any time, without notice, and assumes no responsibility for its use. This informational document describes
features that may not be currently available. Contact a Brocade sales office for information on feature and product availability.
Export of technical data contained in this document may require an export license from the United States government.
The authors and Brocade Communications Systems, Inc. shall have no liability or responsibility to any person or entity with
respect to any loss, cost, liability, or damages arising from the information contained in this book or the computer programs that
accompany it.
The product described by this document may contain “open source” software covered by the GNU General Public License or other
open source license agreements. To find out which open source software is included in Brocade products, view the licensing
terms applicable to the open source software, and obtain a copy of the programming source code, please visit
http://www.brocade.com/support/oscd.
Brocade Communications Systems, Incorporated
Corporate and Latin American Headquarters
Brocade Communications Systems, Inc.
1745 Technology Drive
San Jose, CA 95110
Tel: 1-408-333-8000
Fax: 1-408-333-8101
E-mail: info@brocade.com
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E-mail: china-info@brocade.com
Asia-Pacific Headquarters
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Fax: +8620 3891 2111
E-mail: china-info@brocade.com
• Appendix C, “HCM Troubleshooting,” provides a summary of HCM navigation problems and
NOTE
ATTENTION
CAUTION
workarounds.
Document conventions
This section describes text formatting conventions and important notice formats used in this
document.
Text formatting
The narrative-text formatting conventions that are used are as follows:
bold textIdentifies command names
italic textProvides emphasis
code textIdentifies CLI output
Identifies the names of user-manipulated GUI elements
Identifies keywords and operands
Identifies text to enter at the GUI or CLI
Identifies variables
Identifies paths and Internet addresses
Identifies document titles
Identifies command syntax examples
For readability, command names in the narrative portions of this guide are presented in mixed
lettercase: for example, switchShow. In actual examples, command lettercase is often all
lowercase. Otherwise, this manual specifically notes those cases in which a command is case
sensitive.
Notes, cautions, and warnings
The following notices and statements are used in this manual. They are listed below in order of
increasing severity of potential hazards.
A note provides a tip, guidance or advice, emphasizes important information, or provides a reference
to related information.
An Attention statement indicates potential damage to hardware or data.
A Caution statement alerts you to situations that can be potentially hazardous to you or cause
damage to hardware, firmware, software, or data.
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Key terms
For definitions specific to Brocade and Fibre Channel, see the Brocade Glossary.
For definitions specific to this document, see “Glossary and acronyms” on page 201.
For definitions of SAN-specific terms, visit the Storage Networking Industry Association online
dictionary at:
http://www.snia.org/education/dictionary
Notice to the reader
This document may contain references to the trademarks of the following corporations. These
trademarks are the properties of their respective companies and corporations.
These references are made for informational purposes only.
.
CorporationReferenced Trademarks and Products
Microsoft CorporationWindows Server, Windows XP, Windows Vista
Sun Microsystems, Inc.Sun, Solaris
Red Hat, Inc.Red Hat, Red Hat Network, Maximum RPM, Linux Undercover
Novell, Inc.SuSE Enterprise Server (SLES), Linux
VMwareVMware, ESX Server
Additional information
This section lists additional Brocade and industry-specific documentation that you might find
helpful.
Brocade resources
To get up-to-the-minute information, join Brocade Connect. It’s free! Go to http://www.brocade.com
and click Brocade Connect to register at no cost for a user ID and password.
For practical discussions about SAN design, implementation, and maintenance, you can obtain
Building SANs with Brocade Fabric Switches through:
http://www.amazon.com
For additional Brocade documentation, visit the Brocade Web site:
http://www.brocade.com
Release notes are available on the Brocade Connect Web site and are also bundled with the Fabric
OS firmware.
For additional resource information, visit the Technical Committee T11 Web site. This Web site
provides interface standards for high-performance and mass storage applications for Fibre
Channel, storage management, and other applications:
http://www.t11.org
For information about the Fibre Channel industry, visit the Fibre Channel Industry Association Web
site:
http://www.fibrechannel.org
For information about the Institute of Electrical and Electronics Engineers (IEEE) organization, visit
the IEEE Web site:
http://standards.ieee.org/
Getting technical help
Contact your adapter support supplier for hardware, firmware, and software support, including
product repairs and part ordering. To expedite your call, have the following information available:
• Adapter model
• Adapter operating system version
• Error numbers and messages received
• supportSave command output (see “debug” on page 162 for details)
• Detailed description of the problem, including the switch or fabric behavior immediately
following the problem, and specific questions
• Description of any troubleshooting steps already performed and the results
• Serial console and Telnet session logs
• syslog message logs
Related documentation
Part NumberDocument Title
53-1000884-01Brocade Fibre Channel Adapter Installation and Reference Manual supporting CNA
53-1000598-03Fabric OS Administrator’s Guide supporting Fabric OS v6.1.0
53-1000853-01Fabric OS Troubleshooting and Diagnostics Guide supporting Fabric OS v6.1.0
xviBrocade Adapters Administrator’s Guide
models BR-1010 and BR-1020 and HBA models 415, 425, 815, and 825
and BR-1020 and HBA models 415, 425, 815, and 825
53-1001256-01
Document feedback
Quality is our first concern at Brocade and we have made every effort to ensure the accuracy and
completeness of this document. However, if you find an error or an omission, or you think that a
topic needs further development, we want to hear from you. Forward your feedback to:
documentation@brocade.com
Provide the title and version number of the document and as much detail as possible about your
comment, including the topic heading and page number and your suggestions for improvement.
Fibre Channel over Ethernet (FCoE) leverages Ethernet enhancements, called Converged
Enhanced Ethernet (CEE), to transport encapsulated Fibre Channel frames over Ethernet. Ethernet
is the physical layer over which the encapsulated FC frames are transported.
One of the barriers to using Ethernet as the basis for a converged network has been the limited
bandwidth that Ethernet has historically provided. However, with 10 Gbps Ethernet, the available
bandwidth now offers the potential to consolidate all the traffic types over the same link.
1
Unlike Fibre Channel, Ethernet is not a peer-to-peer protocol. The mechanism used to discover new
ports, MAC address assignments and FC logins and logouts is called the FCoE Initialization Protocol
(FIP).
DCB exchange protocol
DCB Exchange (DCBX) protocol is used between data center bridging (DCB) devices, such as a
converged network adapter (CNA) and a FCoE switch, to exchange configuration with
directly-connected peers.
When DCBX protocol is used, any other LLDP implementation must be disabled on the host systems.
Three types of adapter drivers are provided in installation packages:
• Storage driver - This is a unified driver that provides Fibre Channel frame transport for Brocade
• Network driver - This is the driver for frame transport over Ethernet and basic Ethernet
• Intermediate driver - This is for Windows systems only. It provides support for multiple VLANs.
The firmware is packaged with both the Storage driver and the Network driver so that it can be
downloaded by either of the drivers. The firmware is also stored in the flash for SAN boot.
For more information about the driver packages, support for the drivers, and driver installation,
refer to the Brocade Adapters Installation and Reference Manual.
HBAs and FCoE transport for Brocade CNAs. The adapter logic detects either a FCoE or Fibre
Channel network and the appropriate driver support is provided automatically.
The unified storage driver will claim all installed Brocade Fiber Channel HBAs, as well as FCoE
CNAs installed in a system. This driver will be used instead of the driver originally installed for
the HBA.
services. This driver only applies to CNAs.
This driver only applies to CNAs.
Enhanced Ethernet features
Enhanced Transmission Selection (ETS) and priority-based flow control are the two basic
requirments in a lossless Ethernet environment. These capabilities allow the Fibre Channel frames
to run directly over 10 Gbps Ethernet segments without adversely affecting performance.
Enhanced transmission selection
With ETS, more important storage data traffic can be assigned higher priority and higher
guaranteed bandwidth so that it is not stalled by less important traffic. To enable effective
utilization of the network, ETS allows lower priority to unused bandwidth from high-priority queues
ETS allows configuration of bandwidth per priority group.
Priority group ID usage is defined as follows:
• PGID = {0, 7} is used when the priority group is limited for its bandwidth use.
• PGID = {8, 14} is reserved.
• PGID = {15} is used for priorities that are not limited for their bandwidth use.
The configured priority group percentage refers to the maximum percentage of available link
bandwidth after PGID 15 is serviced, assuming all priority groups are fully subscribed. If one of the
priority groups does not consume its allocated bandwidth, then any unused portion is available for
use by other priority groups.
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Enhanced Ethernet features
NOTE
1
Priority-based flow control
Priority flow control pauses traffic based on the priority levels. A high-level pause algorithm follows:
• During periods of heavy congestion, the receive buffers reach high threshold and generate a
pause.
• The pause tells transmission (Tx) queues to stop transmitting.
• After the receive (Rx) buffers reach low threshold, a zero pause is generated.
• The zero Pause signals the Tx queues to resume transmitting.
Ethernet jumbo frames
The basic assumption underlying FCoE is that TCP/IP is not required in a local data center network
and the necessary functions can be provided with Enhanced Ethernet. The purpose of an
“enhanced” Ethernet is to provide reliable, lossless transport for the encapsulated Fibre Channel
traffic. Enhanced Ethernet provides support for jumbo Ethernet frames and in-order frame delivery.
The Brocade FCoE 10 Gbps converged network adapter supports jumbo packets of up to 9 KB,
compared to the original 1,518-byte MTU for Ethernet. The frame size increase allows the same
amount of data to be transferred with less effort.
The frame data field size that you can set using the HCM GUI or BCU is for the storage side. You can
set the MTU using the OS interface, and this is for the network side. See “Frame data field size” on
page 28 for information about setting the frame data field size.
If a jumbo frame size is set for the CNA, the frame size setting on the attached FCoE switch must
match or it cannot accept jumbo frames.
The Brocade FCoE converged network adapter supports two layers of protocols: Ethernet link layer
and FCoE layer. They are listed in the following sections.
Ethernet link layer protocols supported
The following protocols support the Ethernet link layer.
• 802.1q (VLAN)
• 802.1Qaz (enhanced transmission selection)
• 802.1Qbb (priority flow control)
• 802.3ad (link aggregation)
• 802.3ae (10 Gb Ethernet)
• 802.1p (priority encoding)
• IEEE 1149.1 (JTAG) for manufacturing debug and diagnostics
• IPv4 specification (RFC 793/768)
• IPv6 specification (RFC 2460)
• TCP/UDP specification (RFC 793/768)
• ARP specification (RFC 826)
• RSS with support for IPV4TCP, IPV4, IPV6TCP, IPV6 hash types
• HDS (Header-data split)
FCoE protocols
The following protocols support Fibre Channel over Ethernet.
• FIP (FC-BB5 compliant):
• Support for FIP Discovery protocol for dynamic FCF discovery and FCoE link management
• Support for FPMA and SPMA type FIP fabric login
• Support for Initiator mode only (FCP-3 compliant in Initiator mode)
• SCSI protection information support
• IP-over-FC
• NPIV support
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Chapter
NOTE
HCM Overview
In this chapter
HCM software
The Host Connectivity Manager (HCM) is a management software application for configuring,
monitoring, and troubleshooting Brocade HBAs and Converged Network Adapters (CNAs) in a
storage area network (SAN) environment.
The management software has two components:
• The agent, which runs on the host.
• The management console, which is the graphical user interface client used to manage the HBA
You can manage the software on the host or remotely from another host. The communication
between the management console and the agent is managed using JSON-RPC over https.
The information in this guide is intended for OEMs, field service personnel, and customers who are
installing Brocade hardware and HCM software.
All HCM, utility, SMI-S Provider, boot software, and driver installation packages, as well as the Driver
Update Disk (DUD), are described in the Brocade Adapters Installation and Reference Manual.
• Link status of each adapter and its attached devices
• Loopback test, which is external to the adapter, to evaluate the ports (transmit and receive
transceivers) and the error rate on the adapter
• Read/write buffer test, which tests the link between the adapter and its devices
• FC protocol tests, including echo, ping, and traceroute
problems through a user-defined event filter.
Tree node pop-up menus
You can use the HCM GUI main menu or the Brocade Command Line Utility (BCU) to configure,
monitor, and troubleshoot your SAN components. The instructions for using each feature are
detailed in subsequent chapters of this document. For each SAN component, you can optionally
right-click its icon and a pop-up menu displays (see Table 1).
The HCM GUI consists of three layers, and the features display differently depending on the
configuration. There are three possible configuration scenarios, as follows:
• Both the storage driver and the link layer driver are installed.
• Only the storage driver is installed.
• Only the link layer driver is installed.
Whether the FCoE Port node or the Ethernet node are presented in the tree depends on the drivers
that are installed.
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TABLE 1HCM tree pop-up menus
SAN componentPop-up menu feature
HostRefresh All
Start Polling
Upload Boot Code Image
Change Agent Password
Configure Names
Basic Port Configuration
Persistent Binding
Statistics > Port Statistics
FC-SP
Support Save
Tree > Copy | Search | Collapse All | Expand All
Tree node pop-up menus
2
Brocade HBA
4 Gbps or 8 Gbps
Converged Network Adapter
(CNA), 10 Gbps
FCoE PortRefresh
Refresh
Define Name
Upload Boot Code Image
Basic Port Configuration
Persistent Binding
Port Statistics
Diagnostics
FC-SP
Enable Adapter
Refresh
Define Name
Persistent Binding
Statistics > Port | CEE | FCP IM Module Statistics
Diagnostics
Enable Port
Tree > Copy | Search | Collapse All | Expand All
Define Names
Port Configuration > Basic | Advanced
Persistent Binding
Virtual Port > Create | Delete
Statistics > Fabric | IOC
Beacon > Port
Tree > Copy | Search | Collapse All | Expand All
Names
Basic Port Configuration (includes Ethernet Logging Level)
VLAN Configuration
Change Password for HCM User
HCM Logging Levels
Syslog
Statistics > IOC Ethernet | VLAN
Diagnostics > Ethernet Tests
Tree > Copy | Search | Collapse All | Expand All
Operating system support
NOTE
2
Operating system support
There are slight differences in the operating systems (OSs) that are supported on the driver, on the
Host Connectivity Manager (HCM), and the Brocade Command Line Utility (BCU), and the HCM
agent.
Ethernet Link Layer Driver OS support
Tab le 2 lists the operating systems supported on the driver.
The Brocade Command Line Utility (BCU) is a standalone application that is installed as part of the
driver package. The BCU is used primarily for managing adapters installed on a local machine. The
BCU is supported across all operating system versions listed in Table 2.
Supported drivers vary with the operating system being used. For example, for Windows, the
Storport miniport driver is supported (there is no support for the SCSI miniport driver) and for
Solaris, only the Leadville-based driver is supported.
TABLE 2Ethernet Link Layer Driver operating system support
Operating Systemx86IA64IEM64TAMD64
Windows Server 2003, R2, SP2
Requires SP2 plus Hotfix 932755 and
KB943545
Windows Server 2008YesYesYesYes
Linux 2.6 kernel
Novell SuSE Linux Enterprise Server (SLES)
10.1, 10.2
Novell SuSE Linux Enterprise Server (SLES) 11.0 YesNoYesYes
Red Hat Enterprise Linux (RHEL) 4.6, 4.7YesNoYesYes
Red Hat Enterprise Linux (RHEL) 5.2, 5.3YesNoYesYes
VMware ESX 3.5, U3, U4YesNoYesYes
YesNoYesYes
YesNoYesYes
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Supported features
FCoE Driver OS support
Tab le 3 lists the operating systems supported on the FCoE driver.
TABLE 3FCoE driver operating system support
Operating Systemx86IA64IEM64TAMD64SPARC
2
Windows Server 2003, R2, SP2
Requires SP2 plus Hotfix 932755 and
KB943545
Windows Server 2008YesYesYesYesNo
Linux SuSE Enterprise Server (SLES)
10.1 and 10.2
Linux SuSE Enterprise Server (SLES)
11.0
Linux Red Hat Enterprise 4.6, 4.7YesYesYesYesNo
Linux Red Hat Enterprise 5.2, 5.3YesYesYesYesNo
Solaris 10.5
VMware ESX 3.5, U3, U4YesNoYesYesNo
1
FCoE driver only. The Networking driver is not supported on Solaris 10.5.
Supported features
Some features are available only in specific port nodes. These features are identified in Table 4.
TABLE 4Port node-specific features
YesYesYesYesNo
YesYesYesYesNo
YesYesYesYesNo
1
YesNoYesYesYes
FeaturesFCoE portLink Layer (LL) Ethernet portPhysical port
The following procedures describe how to launch the HCM application in Windows, Linux, and
Solaris.
• “Launching the application on Windows platforms”
• “Launching the application on Linux platforms”
• “Launching the application on Solaris platforms”
3
Launching the application on Windows platforms
After installing the HCM software, locate Brocade HCM on the Windows platform by selecting
Start > Programs > BROCADE_FCHBA.
OR
Click the desktop icon to launch the application.
The following figure shows the screen that appears when HCM software is first launched.
FIGURE 1HCM Login dialog box
The factory default user ID and password are Administrator and password. After you log in for the
first time, you should change the default password to a new one using the HCM GUI.
After installing the HCM software, locate Brocade HCM on the Linux platform.
• If using a GNOME shell, double-click the BROCADE_FCHBA icon to launch the application.
• If using a KDE shell, single-click the BROCADE_FCHBA icon to launch the application.
OR
Start the application from the command prompt using the following commands:
suse116208:~ # cd /opt/brocade/fchba/client
suse116208:<installed directory>/fchba/client # ./BROCADE_FCHBA
Launching the application on Solaris platforms
After installing the HCM software, you can launch the Brocade HCM application on the Solaris
platform by double-clicking on the BROCADE_FCHBA icon.
OR
Start the application from the command prompt using the following commands:
sun-116190# cd <installed directory>/fchba/client/
sun-116190# ./BROCADE_FCHBA
Remember password
The Login dialog has a check box to remember the password. If you check the Remember password
check box, you do not need to enter the password the next time you launch the application.
Skip login
Take one of the following actions to manage the Skip Login feature.
• Enable Skip Login by checking the Skip Login Dialog check box.
If the Skip Login check box is checked, it automatically disables the Remember password
option.
• Disable Skip Login by setting hba-application.skip-login=false in the
/data/HBAApplication.properties file.
• Select the Skip Login check box if you do not want the Login dialog box to appear the next time
the application is started.
12Brocade Adapters Administrator’s Guide
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