HP StorageWorks 8/8 HP StorageWorks Fabric OS 6.2.0g release notes (5697-0355, - Page 27

-Gb link initialization and fill words, Overview, portCfgFillWord command

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When connecting to an extension device that does not support ARB primitives (such as some TDM products), the following configuration must be used: • portcfgqos -disable • portcfgcreditrecovery -disable • portCfgLongDistance 0 The fabric parameter fabric.ops.mode.longdistance is now deprecated and should not be used. 8-Gb link initialization and fill words This section describes the portCfgfillWord command that was added to 6.2.x firmware beginning with Fabric OS 6.2.0d. Overview The FC Physical Interfaces (FC-PI) standard defines the requirements for a physical layer. It considers all aspects of transmit, receive, and cable-plant performance requirements for optical and electrical links. The FC-PI standard has been modified to support new physical-layer variants that operate at higher data rates than those specified in FC-PI-2. The standard enables interoperability of transmitter devices, receiver devices, interconnects, and components from different manufacturers. New variants include support for an 800 MB/s data rate. The previous implementation by Brocade was to use IDLE for Link Init and as fill words, which works for 1-Gb, 2-Gb, 4-Gb, and most 8-Gb devices. However, some of the new 8-Gb devices have problems with the IDLE/IDLE sequence at 8 Gb. 8-Gb switches, HBAs, and smaller mid-range 8-Gb storage devices are using the IDLE/IDLE sequences without any problems. Some of the new 8-Gb devices require that the ARB (FF)/ARB (FF) sequence have successful Link Initialization. Brocade has developed an implementation of ARB (FF)/ARB (FF) for initialization and fill words. The portcfgfillword command, first introduced in Fabric OS 6.1.2 for 6.1x firmware and 6.2.0d for 6.2.x firmware, configures the ARB(FF)/ARB(FF) implementation. portCfgFillWord command The new command portCfgFillWord configures the ARB/ARB implementation for initialization and fill words for a single 8-Gb FC port. • Syntax: portcfgfillword [slotnumber/]portnumber, mode • Description: Use this command to configure the fill word of an 8-Gb FC port. This command is not applicable to non 8-Gb FC ports. This command disables and re-enables the port and the port comes online with the new fill word setting. The configuration is stored in nonvolatile memory and is persistent across switch reboots or power cycle. To display user-configured fill word settings, use the portCfgShow command NOTE: • This configuration can not be set on VE_Ports or VEX_Ports. • The execution of the portcfgfillword command is subject to Admin Domain or Virtual Fabric restrictions that may be in place. • Operands: The portcfgfillword has the following operands: HP StorageWorks Fabric OS 6.2.0g release notes 27

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When connecting to an extension device that does not support ARB primitives (such as some TDM
products), the following configuration must be used:
•
portcfgqos -disable <port>
•
portcfgcreditrecovery –disable <port>
•
portCfgLongDistance <port><LD|LD>0<distance>
The fabric parameter
fabric.ops.mode.longdistance
is now deprecated and should not be
used.
8-Gb link initialization and fill words
This section describes the
portCfgfillWord
command that was added to 6.2.x firmware beginning
with Fabric OS 6.2.0d.
Overview
The FC Physical Interfaces (FC-PI) standard defines the requirements for a physical layer. It considers
all aspects of transmit, receive, and cable-plant performance requirements for optical and electrical
links. The FC-PI standard has been modified to support new physical-layer variants that operate at
higher data rates than those specified in FC-PI-2. The standard enables interoperability of transmitter
devices, receiver devices, interconnects, and components from different manufacturers.
New variants include support for an 800 MB/s data rate. The previous implementation by Brocade
was to use IDLE for Link Init and as fill words, which works for 1-Gb, 2-Gb, 4-Gb, and most 8-Gb
devices. However, some of the new 8-Gb devices have problems with the IDLE/IDLE sequence at 8
Gb. 8-Gb switches, HBAs, and smaller mid-range 8-Gb storage devices are using the IDLE/IDLE
sequences without any problems. Some of the new 8-Gb devices require that the ARB (FF)/ARB (FF)
sequence have successful Link Initialization. Brocade has developed an implementation of ARB (FF)/ARB
(FF) for initialization and fill words. The
portcfgfillword
command, first introduced in Fabric OS
6.1.2 for 6.1x firmware and 6.2.0d for 6.2.x firmware, configures the ARB(FF)/ARB(FF)
implementation.
portCfgFillWord command
The new command
portCfgFillWord
configures the
ARB/ARB
implementation for initialization
and fill words for a single 8-Gb FC port.
•
Syntax
:
portcfgfillword [slotnumber/]portnumber, mode
•
Description
: Use this command to configure the fill word of an 8-Gb FC port. This command is not
applicable to non 8-Gb FC ports. This command disables and re-enables the port and the port
comes online with the new fill word setting. The configuration is stored in nonvolatile memory and
is persistent across switch reboots or power cycle.
To display user-configured fill word settings, use the
portCfgShow
command
NOTE:
•
This configuration can not be set on VE_Ports or VEX_Ports.
•
The execution of the
portcfgfillword
command is subject to Admin Domain or Virtual
Fabric restrictions that may be in place.
•
Operands
: The
portcfgfillword
has the following operands:
HP StorageWorks Fabric OS 6.2.0g release notes
27