Specifications

ManualsBrandsMcDATA ManualsNetwork RouterULTRANETTM EDGE STORAGE ROUTER 3000

UltraNet™ Edge Storage Router

3000

Release 3.2

Release Notes

P/N 958-000502-320 REV A

Summary of content (62 pages)

PAGE 1
UltraNet™ Edge Storage Router 3000 Release 3.
PAGE 2
Record of Revisions and Updates Revision Date Description 958-000502-000 8/2005 Release notes for release 3.1.2 under the McDATA brand. 958-000502-313 11/2005 Release notes for release 3.1.3. 958-000502-314 4/2006 Release notes for release 3.1.4. 958-000502-315 7/2006 Release notes for release 3.1.5. 958-000502-320 12/2006 Release notes for release 3.2 Copyright © 2005 - 2006 McDATA Corporation. All rights reserved.
PAGE 3
Contents Chapter 1 Introduction What’s New With the Release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 RoHS Compliant 10/100 Ethernet Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 FICON Tape Read Pipelining Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Adaptive Rate Limiting Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Enhanced Control of Fibre Channel Data Traffic . . . . . .
PAGE 4
FICON N_Port to N_Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 FC/SCSI E_Port, F_Port, and FICON Compatibility . . . . . . . . . . . . . . . . 1-11 FC/SCSI Tape Pipelining (Device Extension) Requirements . . . . . . . . . . . . . . . . 1-11 Chapter 2 Fibre Channel Switch Requirements Supported UltraNet Edge Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 FCSW - Internal Fibre Channel Switch Application . . . . . . . . . . . . . . . .
PAGE 5
PID Format Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brocade Switch Settings Matrix for all Edge Series . . . . . . . . . . . . . . . . . . . . . . . Mapping a Device to a Specific E_port Connection . . . . . . . . . . . . . . . . . . . . . . . Supported Compatibility with the Brocade Multiprotocol Router. . . . . . . . . . . . . . 2-21 2-22 2-23 2-24 Chapter 3 UltraNet ConfigManager New Features . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 6
Configuring for FICON Cascaded Director (ISL) Topologies . . . . . . . . . . . . . C-2 Configuring for FICON Point-to-Point or Switched Point-to-Point Topologies . C-2 Ensuring Sufficient bb_credits are Configured . . . . . . . . . . . . . . . . . . . . . . . . C-2 Setting the Fibre Channel Port Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3 Setting the Fibre Channel Port Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3 High Integrity Feature . . . . . . . . . .
PAGE 7
Tables Table 1-1 Minimum Hardware Levels for the Release . . . . . . . . . . . . . . . . . . . . . 1-3 Table 1-2 Compatible Operating System (OS) Versions . . . . . . . . . . . . . . . . . . . 1-6 Table 1-3 Differences Between 10/100 Ethernet Cards . . . . . . . . . . . . . . . . . . . 1-7 Table 1-4 Fibre Channel Card Dependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 Table 2-1 Supported Edge Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 8
viii UltraNet Edge Storage Router 3000 Version 3.
PAGE 9
Chapter 1 Introduction This chapter provides a brief description of new features, minimum hardware and software levels, and the compatibility requirements for the release of the UltraNet Edge Storage Router 3000. What’s New With the Release Version 3.2 of the UltraNet Edge Storage Router 3000 software adds the following new features and enhancements.
PAGE 10
Introduction What’s New With the Release are running at the same time. In these cases, the bandwidth is usually split up equally across all WAN connections. The Adaptive Rate Limiting feature is configured by specifying a Minimum Transmission Rate and a Maximum Transmission Rate (MTR). The Adaptive Rate Limiting software will determine how to appropriately fluctuate between the two rates to use the bandwidth allocated for the idle traffic. Adaptive Rate Limiting is available on IP circuits only.
PAGE 11
Introduction Overview Overview The UltraNet Edge 3000 interconnects Fibre Channel fabrics over extended distances, using a new or existing IP or ATM network. The UltraNet Edge 3000 can be customized and configured as 1x1 and 2x2 configurations in an IP, or ATM WAN implementation. Note: 1x2, 2x1, and 3x1 configurations are possible, but not supported as a standard implementation. The UltraNet Edge 3000 has been designed to be user installable, configurable, and maintainable.
PAGE 12
Introduction Minimum Hardware Levels Table 1-1 Minimum Hardware Levels for the Release (continued) Part Number Description Revision Note: Revision D of the FCBB card (part number 20501792) ships with the v3.1.1.4 or greater release. If you are upgrading from v3.1.1.3, Revision D is required only if you are running the Edge v3.1.1.4 or greater with the FC/9000 or if you are enabling Disk Streaming.
PAGE 13
Introduction Minimum Hardware Levels To determine the FPGA revision level for E_Port configurations, use the following commands: • For E_Port configurations, use the fccnt dump backbone command. • For F_Port configurations, use the fccnt dump switchport command. The storage devices and associated applications which are supported and non-supported for Disk Streaming are listed in the UltraNet Edge Storage Router - 3000 Series User Guide in the “E_Port Disk Streaming Network Recommendations” section.
PAGE 14
Introduction Compatibility Requirements Compatibility Requirements The following sections provide hardware and software dependencies. Compatible Operating System Configurations The UltraNet Edge 3000 operating system (OS) version is not backward compatible with previous versions. Table 1-2 shows the compatible operating system configurations. Table 1-2 Compatible Operating System (OS) Versions OS Version Compatible with OS Version • Edge OS 3.2 • Edge OS 3.2 • Edge OS 3.1.5 • Edge OS 3.1.
PAGE 15
Introduction Compatibility Requirements RoHS Compliant 10/100 Ethernet Card Requirements The new 10/100 Ethernet card differs from previous versions in that operating speed is established only by auto-negotiation. Attached Ethernet Switches or routers need to be set to auto-negotiation. Table 1-1 summarizes the differences.
PAGE 16
Introduction Fibre Channel Card Dependencies Fibre Channel Card Dependencies The UltraNet Edge 3000 supports two types of Fibre Channel cards; FCBB or FCXL2. The FCBB card is standard, the FCXL2 card is only used for FC/SCSI Tape Pipelining (Device Extension) implementations. Table 1-4 explains the configurations that can be run with each card.
PAGE 17
Introduction Fibre Channel Card Dependencies FC/SCSI E_Port to E_Port When an UltraNet Edge 3000 is configured for E_port, its peer UltraNet Edge 3000 must also be configured as E_port. FC/SCSI F_port Configurations F_port is a port in the fabric where an N_port can attach. F_ports are frame routing ports, which are insensitive to higher level protocols. A port configured for F_port can only connect to another N_port via a point-to-point connection.
PAGE 18
Introduction Fibre Channel Card Dependencies FC/SCSI N_Port to N_Port When an UltraNet Edge 3000 is configured for N_port, its peer UltraNet Edge 3000 must also be configured as N_port.
PAGE 19
Introduction FC/SCSI Tape Pipelining (Device Extension) Requirements FICON N_Port to N_Port In this configuration, the Edge 3000 FICON port on one side is directly connected to a Channel Interface and the remote side is directly connected to a Control Unit interface. This configuration is defined the same as the F_port to N_port configuration described in the prior section.
PAGE 20
Introduction FC/SCSI Tape Pipelining (Device Extension) Requirements 1-12 UltraNet Edge Storage Router 3000 Version 3.
PAGE 21
Chapter 2 Fibre Channel Switch Requirements This chapter provides configuration information for the internal Fibre Channel Switch (FCSW) application for the UltraNet Edge 3000, the certified models of McDATA, Cisco, and Brocade Fibre Channel switches, and the supported configurations and configuration requirements for the Brocade Multiprotocol Router.
PAGE 22
Fibre Channel Switch Requirements FCSW - Internal Fibre Channel Switch Application FCSW - Internal Fibre Channel Switch Application The UltraNet Edge 3000 contains an application (FCSW) which acts as a Fibre Channel switch and eliminates the need for an external switch. Note: FICON connections cannot be defined through an UltraNet Edge 3000 F_Port interface.
PAGE 23
Fibre Channel Switch Requirements Supported McDATA Sphereon and Intrepid Models Supported McDATA Sphereon and Intrepid Models The following McDATA models are supported with the UltraNet Edge 3000 for FC/SCSI E_port, N_port, NL_port, and FICON configurations, as appropriate.
PAGE 24
Fibre Channel Switch Requirements Supported McDATA Sphereon and Intrepid Models Table 2-2 Required Connector Types for McDATA Switches (continued) McDATA Model McDATA Media McDATA Connector Type Edge Connector Type 6140 SFP LC LC 10000 SFP LC LC Required McDATA Firmware This section provides the required firmware version for use with the supported McDATA models.The UltraNet Edge 3000 supports 1x1 and 2x2 configurations with all McDATA firmware releases.
PAGE 25
Fibre Channel Switch Requirements Supported McDATA Sphereon and Intrepid Models Required Switch Settings for Edge Configurations Use the following settings for Edge E_port and FICON ISL configurations: • • • Port – E-Port – 2 Gb Switch Parameters – Preferred Domain ID: 3 (any unique domain) – Rerouting Delay: Disabled Switch Fabric Parameters – R_A_TOV: 100 – E_D_TOV: 50 – Interop Mode: Open Fabric 1.
PAGE 26
Fibre Channel Switch Requirements Supported McDATA FC/9000 and UMD Models Supported McDATA FC/9000 and UMD Models Table 2-4 lists the models certified with the UltraNet Edge 3000 for FC/SCSI E_port, N_port, NL_port, and FICON configurations, and shows the supported firmware versions. Table 2-4 Supported Models and Required Firmware Model Supported Firmware FC9000 5.0.0.0 5.0.4.0 (recommended) UMD 1.5.0.0 (recommended) Note: Recommended Enterprise Manager code level: 9.
PAGE 27
Fibre Channel Switch Requirements Supported Cisco Models Supported Cisco Models Table 2-5 lists the Cisco switch models certified with the UltraNet Edge 3000 for FC/SCSI E_port, N_port, and NL_port, configurations (no FICON support at this time). Table 2-5 Supported Cisco Models and Required Firmware Cisco Model Required Firmware 9216, 9509 2.1.2b 2.1.2e 3.0.
PAGE 28
Fibre Channel Switch Requirements Supported Brocade Models Supported Brocade Models Table 2-6 lists the Brocade switch models that McDATA has certified with the UltraNet Edge 3000 for FC/SCSI E_port, N_port, or NL_port configurations (no FICON support at this time).
PAGE 29
Fibre Channel Switch Requirements Requirements for Brocade Switches Requirements for Brocade Switches The settings for Brocade switches vary depending upon which UltraNet Edge 3000 configuration is implemented (E-port Extension or Device Extension [Tape Pipelining]). Use the Brocade settings shown in the following sections.
PAGE 30
Fibre Channel Switch Requirements Requirements for Brocade Switches Table 2-8 Required Brocade Firmware (continued) Brocade Model Compatible Applications Brocade 7420 Xpath OS 7.3.0 (recommended) for most applications Note: E_port mode must be turned on when using the Xpath OS. Follow the procedure found in the section “Configuring the Port Settings for Brocade Switch AP7420” on page 2-15.
PAGE 31
Fibre Channel Switch Requirements Requirements for Brocade Switches Switch:admin> portcfgshow Ports 0 1 2 3 4 5 6 7 -------------------+--+--+--+--+----+--+--+-Speed 2G AN AN AN AN AN AN AN Locked L_Port .. .. .. .. .. .. .. .. Locked G_Port .. .. .. .. .. .. .. .. Disabled E_Port .. .. .. .. .. .. .. .. Persistent Disable .. .. .. .. .. .. .. .. ISL R_RDY Mode .. .. .. .. .. .. .. .. where AN:AutoNegotiate, ..:OFF, ??:INVALID. The speed for port 0 (zero) is changed to 2Gig (2G). 3.
PAGE 32
Fibre Channel Switch Requirements Requirements for Brocade Switches switchId: switchWwn: switchBeacon: Zoning: port 0: id 2G port 1: id N2 port 2: id N2 port 3: id N2 port 4: id N2 port 5: -- N2 port 6: -- N2 port 7: -- N2 Switch:admin> fffc02 10:00:00:60:69:c0:0b:1b OFF ON (Active) Online E_port 20:00:00:00:88:19:71:ca (upstream) No_Light No_Light No_Light No_Light No_Module No_Module No_Module In the preceding output, 2G Online.....
PAGE 33
Fibre Channel Switch Requirements Requirements for Brocade Switches 2. To configure the port speed, use the applicable command syntax: • For a Brocade 3250, 3850, 3900, or 4100, enter the portcfgspeed 0 2 command: Switch:admin> portcfgspeed 0 2 Example of the portcfgspeed 0 2 command screen display: Success: configuration allowed. Committing configuration...done. Switch:admin> portcfgshow Ports 0 1 2 3 4 5 6 7 -------------------+--+--+--+--+----+--+--+-Speed 2G AN AN AN AN AN AN AN Locked L_Port .. ..
PAGE 34
Fibre Channel Switch Requirements Requirements for Brocade Switches fabric: Subordinate switch fabric: Domain 2,1 • For a Brocade 12000 or 24000, use the following syntax: Usage: portCfgISLMode [SlotNumber/]PortNumber Mode Example of the portcfgISLMode command screen display: Ports 0 1 2 3 4 5 6 7 -------------------+--+--+--+--+----+--+--+-Speed 2G AN AN AN AN AN AN AN Locked L_Port .. .. .. .. .. .. .. .. Locked G_Port .. .. .. .. .. .. .. .. Disabled E_Port .. .. .. .. .. .. .. ..
PAGE 35
Fibre Channel Switch Requirements Requirements for Brocade Switches switchDomain: switchId: switchWwn: switchBeacon: Zoning: port 0: id 2G port 1: id N2 port 2: id N2 port 3: id N2 port 4: id N2 port 5: -- N2 port 6: -- N2 port 7: -- N2 Switch:admin> 2 fffc02 10:00:00:60:69:c0:0b:1b OFF ON (Active) Online E_port 20:00:00:00:88:19:71:ca (upstream) No_Light No_Light No_Light No_Light No_Module No_Module No_Module In the preceding output, 2G Online.....
PAGE 36
Fibre Channel Switch Requirements Requirements for Brocade Switches 3. Enter the portdisable command to disable the port before a configuration change can be made: Switch:admin>portdisable 0 Example of the portdisable command screen display: port 0 disabled 4. To configure the port speed, use the following command syntax: Switch:admin>portcfgspeed 0 2 Example of the portcfgspeed command screen display: port 0 speed is set to: 2G 5.
PAGE 37
Fibre Channel Switch Requirements Requirements for Brocade Switches Viewing the E_Port Mode To view the E_Port mode, use the following command syntax: Switch:admin>portcfgeport 0 Example of the portcfgeport command screen display: port 0 eport mode is: ENABLED 2-17
PAGE 38
Fibre Channel Switch Requirements Configuring a Brocade for Use with a UltraNet Edge 3000 Configuring a Brocade for Use with a UltraNet Edge 3000 In addition to configuring the Brocade switch settings for use with the UltraNet Edge 3000, you may need to configure the Flow Control Mode in UCM if the Remote Switch License is installed. It is recommended for Brocade Series 3000 switches, the Brocade port connected to the UltraNet Edge 3000 is configured to 2Gbps.
PAGE 39
Fibre Channel Switch Requirements Configuring a Brocade for Use with a UltraNet Edge 3000 Switch Settings Without the RSL for Use with the UltraNet Edge 3000 Use the following Brocade switch settings with the UltraNet Edge 3000 when you are not using the Remote Switch License (RSL) and the UltraNet Edge 3000 is configured as E-port Extension. The BBCredits are not a required configuration on the Brocade switch when configuring the UltraNet Edge 3000 for E-port Extension (16 is the default).
PAGE 40
Fibre Channel Switch Requirements Configuring a Brocade for Use with a UltraNet Edge 3000 Configuring the UltraNet Edge 3000 for Brocade Remote Switch License When using the Brocade Remote Switch License (RSL) with a UltraNet Edge 3000, use UltraNet ConfigManager to configure the UltraNet Edge 3000 Fibre Channel interface to run with RSL. The No Remote Switch License (Flow Control Mode 2) option in (UCM) is the default.
PAGE 41
Fibre Channel Switch Requirements PID Format Settings PID Format Settings The required PID format settings for the Brocade Fibre Channel switches are determined by the series/model of the Brocade switch and the firmware level used. Note: The PID format settings should be consistent throughout the fabric. Table 2-9 provides the required PID format settings for Brocade 2000 series/models.
PAGE 42
Fibre Channel Switch Requirements Brocade Switch Settings Matrix for all Edge Series Brocade Switch Settings Matrix for all Edge Series Table 2-10 shows Brocade switch settings for all Edge models. Table 2-10 Brocade Switch Settings for all Edge Models Brocade Switch Settings Edge 3000 Series (FCXL2) Tape Pipelining (N or NL_port) Edge 3000 Series (FCBB) E_port or F_port • fabric.domain: N/A 3 (any unique domain) • fabric.ops.BBCredit: 7 Not required (16 default) • fabric.ops.
PAGE 43
Fibre Channel Switch Requirements Mapping a Device to a Specific E_port Connection Mapping a Device to a Specific E_port Connection The uRouteConfig command can be used to map connections to a specific E_port connection on the Edge. The following section provides the applicable configuration settings. The uRoute information is specific to each Brocade switch. Each Brocade switch in the fabric must be configured with the applicable uRoute information.
PAGE 44
Fibre Channel Switch Requirements Supported Compatibility with the Brocade Multiprotocol Router Supported Compatibility with the Brocade Multiprotocol Router The UltraNet Edge 3000 3.2 release provides compatibility with the Brocade Multiprotocol Router. When the Brocade Multiprotocol Router is used in combination with the UltraNet Edge 3000, it allows disk and tape applications to be extended across multiple SANs, regardless of location.
PAGE 45
Chapter 3 UltraNet ConfigManager This chapter provides the supported UltraNet Edge 3000 versions for the UltraNet ConfigManager software. UltraNet ConfigManager (UCM) is a graphical configuration tool that provides a point-and-click process for designing and configuring UltraNet Edge Storage Router nodes. This tool allows the user to self-configure and manage configuration modifications. This appendix provides the following information about the UCM 5.7.
PAGE 46
UltraNet ConfigManager Application Licensing Application Licensing UCM 5.7.1 includes application licensing for USD and USD-X series nodes. However, an application license is not required for Edge 3000 series node. Edge 1000 and Edge 3000 series nodes are automatically enabled. When installing UCM 5.7.1, the following Enter License Information (OPTIONAL) screen is displayed. The Product I.D. and Install Key are not required for UltraNet Edge-only installations.
PAGE 47
UltraNet ConfigManager Supported Operating Systems Application Licensing Highlights • When you install UCM, you are prompted to enter a product ID and installation key. If you do not enter a product ID and installation key, UCM is installed but only Edge nodes are enabled. • Product ID and Installation Key are obtained from Technical Support. • Provides support for an expiration date. If you do not enter a product ID and installation key, there is no expiration date.
PAGE 48
UltraNet ConfigManager Procedures for Changing the Default Software Version Procedures for Changing the Default Software Version The default Edge 3000 software version can be changed for the entire network or for the existing nodes on the Network Map. Changing the Default Version for the Entire Network Use the following procedure to change the default Edge 3000 software version for the entire network. Note: This change takes effect for the next node that is added to the Network Map.
PAGE 49
Chapter 4 UltraNet WebView UltraNet WebView This chapter provides the supported platforms, internet browsers, and minimum system requirements for the UltraNet WebView software. UltraNet WebView is an optional software tool that is browser-based and allows the user to monitor the network and the UltraNet Edge Storage Router 3000 remotely from any global location. WebView 3.4.
PAGE 50
UltraNet WebView Compatibility Requirements Java Plug-In The supported browser, Internet Explorer requires a plug-in for the Java applets to function properly in WebView. The required plug-in is Java(TM) 2 Runtime Environment, Standard Edition, version 1.4.2_06. Note: If you do not have external web access, download the plug-in (j2re-1_4_2_06-windows-i586-p.exe) from the WebView CD-ROM.Internet Explorer requires that you download an executable file and install the plug-in.
PAGE 51
Appendix A Resolved Defects and Known Issues This appendix provides the resolved product defects and any known issues at the time of the UltraNet Edge 3000 3.2 release. Resolved Product Defects Table A-1 provides a brief description of the problem and the customer impact prior to the fix. Table A-1 Resolved PDs in the Edge 3.
PAGE 52
Resolved Defects and Known Issues Resolved Product Defects Table A-1 Resolved PDs in the Edge 3.2 Release Affected Customer Affected Application Feature A-2 Description Customer Impact Product Defect Number Reported Frequency All applications Date and Time Daylight savings time rules change in 2007. Daylight savings time starts on the second Sunday in March, and the return to standard time is on the first Sunday in November. Time change will occur according to pre-2007 rules.
PAGE 53
Resolved Defects and Known Issues Known Issues Known Issues There is one known issue for this release. Table A-2 provides a description.. Table A-2 Known Issue Affected Customer Affected Application Feature Application Independent 10/100 Ethernet Support Description Workaround An old 10/100 Ethernet card connected directly to a new RoHS compliant card will not establish a link if both cards are configured full duplex. Set the new RoHS compliant card to auto-negotation for this configuration.
PAGE 54
Resolved Defects and Known Issues Known Issues A-4 UltraNet Edge Storage Router 3000 Version 3.
PAGE 55
Appendix B Feature and Compatibility Matrix Edge Features, UCM, and Webview Compatibility Table B-1 lists the Edge 3000 releases and shows the compatible versions of UltraNet ConfigManager and WebView, related features, and release notes versions. Table B-1 Edge 3000 Releases by Application and Feature Release UCM WebView Version Version Version Features Released Release Notes 3.1.
PAGE 56
Feature and Compatibility Matrix Edge Features, UCM, and Webview Compatibility Table B-1 Edge 3000 Releases by Application and Feature B-2 Release UCM WebView Version Version Version Features Released Release Notes 3.1.5 5.6.1 3.4.3 • RoHS compliant ATM interface 958-000502-315 3.2 5.7.1 3.4.4 • • • RoHS Compliant 10/100 Ethernet FICON Tape Read Pipelining Adaptive Rate Limiting 958-000502-320 UltraNet Edge Storage Router 3000 Version 3.
PAGE 57
Appendix C Switch Considerations for FICON This appendix describes fibre channel switch considerations for Edge 3000 FICON extension. FICON Director (Switch) Considerations There are 3 key things to consider when working in FICON configurations with switches. • Whether or not an ISL is involved, and if so, ensuring that ISL paths are properly configured. • What the Fibre Channel bb-credits value should be. • What the Fibre Channel ports speeds should be set to.
PAGE 58
Switch Considerations for FICON Customer Impact Customer Impact Fibre Channel links may fail to properly initialize if these guidelines are not followed. In addition, having the bb_credits too low will result in device paths not coming online or Fibre Channel aborts (MVS interface control checks). FICON emulation will fail if all the frames associated with a device do not cross the same ISL.
PAGE 59
Switch Considerations for FICON McDATA i10k, 6140, 6064, and 3232 Switches Setting the Fibre Channel Port Speed All Fibre Channel switches allow a port to be set to auto negotiation , 1 Gbps or 2 Gbps. Ultranet Fibre Channel link startup is more efficient and more reliable when the Fibre Channel ports are set to a specific speed, when available. Most devices and IBM host channels are not configurable.
PAGE 60
Switch Considerations for FICON McDATA i10k, 6140, 6064, and 3232 Switches A McDATA switch port defined as FICON (S/390 mode) automatically behaves as a G-Port (generic port). You are not able to set the port type as you can for open systems. G-Ports first attempt to bring up a link as an ISL (E-Port). If attached to a non-ISL device, the port automatically switches to an F-Port. In general the Firmware Revision should be 09.00.00 or above.
PAGE 61
Switch Considerations for FICON McDATA UMD Switch (Firmware Revision 1.5 or above) McDATA UMD Switch (Firmware Revision 1.5 or above) The McDATA UMD has a feature called "flow groups" that must be enabled in cascaded configurations in order for Ultranet FICON emulation support to operate correctly. In the case of XRC operations in UMD cascaded configurations that have multiple extended ISLs, channel detected errors will occur when the "flow groups" feature is not enabled or defined correctly.
PAGE 62
Switch Considerations for FICON FICON Emulation Requirements for Switches There are features in all the McDATA switch products that can be used to define rules for ISL usage. The switch specific rules are used to select the ISL that is used for a combination of inbound ports referencing a remote switch domain. Rules can be defined within the Switch Configuration to at least encourage the switch to route the traffic over a specific ISL.