Tuning Ports for Multi-Frame Sequences | Q-Logic 16HA specification

Configure the Ports

Tuning Ports for Multi-Frame Sequences

In most circumstances, tuning of an individual port is not desirable, and the default setting (Normal) should be left unchanged. However, certain Host-Bus-Adapters (HBA) perform better with tuning. To support optimum performance with these HBAs, the Switch allows individual ports to be tuned based on the characteristics of a particular HBA. Tuning modes supported are:

Non-I - Non-InterleavedThis option prevents sequences from different sources and bound for a single destination from being interleaved. Once a sequence has begun, the Switch will not transmit frames from any source other than the one which began the sequence. This mode is recommended only for Tachyon- based adapters being used for IP trafﬁc. It is not recommended in any other circumstance. If the fabric consists of multiple Switches, Non-I must also be selected on any Cross Connect port that will be used as a route to the Tachyon.

Min-I - Minimize-InterleaveThis option, while not preventing interleaved sequences, minimizes their extent. Once a sequence has begun, the Switch will continue to transmit from the same source as long as frames are available for transmis- sion or end of sequence occurs. If no frames are available for transmission, then a new source will be started and held until it has no frames to transmit or end of sequence occurs. This mode is recommended for Qlogic 2xxx HBAs.

Frame-L - Frame Limit This option limits the number of frames that can be transmit- ted during a single loop tenancy to 32. This option is recommended for JNI HBAs based on the Adaptec ASIC, and Adaptec HBAs.

Normal No tuning applied. Recommended for all situations not mentioned above.

Use the Port Tuning faceplate in SANsurfer if it is necessary to tune a port for multi-frame sequences.

2-20Installation		SANbox-16HA Fibre Channel Switch
2-20Installation	59005-03 Rev. A	Installer’s/User’s Manual

Image 62

Q-Logic 16HA user manual Tuning Ports for Multi-Frame Sequences

Contents

SANbox-16HA High Availability Fibre Channel Switch Release Number 03, Revision a August Table of Contents Installation 59005-03 Rev. a Installer’s/User’s Manual Multi-Chassis Fabrics Diagnostics/TroubleshootingRemoval/Replacement Procedures Reference Information Index ViiQLogic Customer Support List of Figures and Tables How to Use This Manual Intended Audience Related Materials Safety Notices Sicherheitshinweise Communications Statements Federal Communications Commission FCC Class a Statement CE Statement Vcci Class a Statement Laser Safety Information Labeling Requirements Zugängliche Teile Accessible PartsPièces Accessibles QLogic Customer Support Preface 59005-03 Rev. a Installer’s/User’s Manual Section Introduction Major Fibre Channel Port Features Major Fibre Channel Port Features Fabric Port Overview Segmented Loop Port SLPort Overview Switch Private Loop Segment SLPort Management Fabric Translated Loop Port TLPort OverviewPrivate Loop TCP/IP Example 8General Description Major Switch Chassis Features Major Switch Chassis Features 10General Description Major Switch Management Features Major Switch Management Features Hard Zones Name Server Zoning by World Wide Name 14General Description Switch Management Tools Switch Management ToolsSANsurfer Switch Management Application Telnet Trivial File Transfer Protocol Tftp Simple Network Management Protocol Snmp Fibre Channel Ports Fibre Channel Ports Gbic Connector GigaBit Interface Converters GBICs Front Panel Controls Power SwitchesTest Mode Switch Front Panel Controls Front Panel LEDs Switch Logic Power Good LED GreenPower Supply Fail LED RED Heartbeat LED Yellow Over Temperature LED Red Logged-In LED Green AC Input Power Connectors and Fuses AC Input Power Connectors and FusesSwitch Management Connector Trafﬁc LED Yellow Chassis Back Chassis Back Power Supplys Back Panel Lights Installation Unpack Rack Mount Place or Mount the EquipmentShelf Mount Place or Mount the Equipment Cabinet Mounting Bracket IEC Class 1 Laser Information Label Install GBICs Install GBICsConnect to AC Power Connect to AC Power Switch Logic Power Good LED Switch Logic Power Good LEDCheck the Power-On-Self-Test Post Results Public Devices Cable Fibre Channel Devices to the SwitchCable Fibre Channel Devices to the Switch Private Devices Mixing Public and Private Devices on the Same Loop Switch PortsTuning Distance Port Buffer Credits Connections Hot-PluggableIncorrect Cabling Examples Public Loop Storage Devices Local Area Network LAN Public Storage ServersPublic FC To Scsi Bridge Public Loop Public Loop Devices Private Loop Storage Servers Jbod Public Loop Workstations Private Translated Loop Configure the Chassis Conﬁgure the Chassis Fabric Ports Configure the PortsConﬁgure the Ports SLPorts TLPorts TPorts Tuning Ports for Multi-Frame Sequences Zoning Zoning Rack and Shelf Administration Rack and Shelf AdministrationOperating the Switch Diagnostics/Troubleshooting Power Supply Troubleshooting Corrective Status Action Shaded text in table denotes abnormal indications System Status For example Overview Power-On-Self-Test PostPower-On-Self-Test Post Power-On-Self-Test Post Heartbeat LED Blink Patterns Test/Failure Descriptions Force Prom Mode in Effect 5 Blinks Fibre Channel Port Loop-back Test Failure 8 Blinks Switch Auto-Route Test Failure 10 Blinks Cable Continuity Tests Cable Continuity Tests Input Fuse Removal Replacement Input Fuse Gbic Connector Keyway Latch Bail Gbic Power Supply Power Supply Battery Battery Battery Multi-Chassis Fabrics Three Multi-Chassis Topologies Introduction Choosing a Topology Bandwidth Between Chassis Cascade Topology Cascade Topology Cascade Fabric Size Cascade Latency Cascade Bandwidth Cascade Physical Distance between Chassis Cascade Zoning Mkii Compatibility Mesh Latency Mesh TopologyMesh Fabric Size Mesh Topology Mesh Bandwidth Mesh Physical Distance Between Chassis Mesh Zoning TPort Rules for SANbox Cross-Connect CC Chassis Multistage TopologyTPort Rules for SANbox IO/T Chassis Multistage Fabric Size Multistage Zoning Multistage BandwidthMultistage Physical Distance Between Chassis Multistage Examples Multistage Topology SANbox-16 Multistage with eight CC chassis Copper TPort Connections CablingFiber Optic TPort Connections TPort Cable Length Chassis Configuration Chassis Conﬁguration Chassis Configuration Process Chassis Conﬁguration Process 20Multi-Chassis Fabrics Appendix a SANbox-16HA Fibre Channel Switch Specifications SANbox-16HA Fibre Channel Switch SpeciﬁcationsSwitch Superscalar 40-MHz Intel i960HA Switch Maintainability Fabric Management Switch Environmental Switch MechanicalSwitch Electrical Switch Regulatory Certiﬁcations Shortwave Laser Gbic multi-mode Longwave Laser Gbic single-mode Copper Inter-Enclosure Gbic active Copper Intra-Enclosure Gbic passive 444.5 17.78 552.45 21.75 508 20.00 444.5 17.5 38.1 Help Desk Hardware Support Software Support Software SupportCustomer Responsibilities Index Index LED heartbeat 1-20 logged-in Device discovery Zoning cascade 5-8 description 2-21 mesh 5-11 multistage Index 59005-03 Rev. a Installer’s/User’s Manual