Fabric Manager Users Guide, Version 6.1, Revision A - QLogic

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1–Overview of the QLogic Fabric Manager Suite Terminology Clarification – “FM” vs. “SM” The scope of the terms are generally interpreted by the context in which it is being used. Therefore, if the specific managers are being discussed, then “FM” means the suite. Likewise, if general fabric management is being considered, then “SM” is being used to specify all of the managers. 1-14 IB0054608-01 B
2 Advanced Fabric Manager Capabilities Fabric Change Detection An important aspect of the QLogic Fabric Manager’s Subnet Manager (SM) is its ability to rapidly detect and respond to fabric changes. This is accomplished using the Fabric Sweep process. The SM can start a fabric sweep due to any of the following: • Fabric Change Trap from an Host Channel Adapter, a Target Channel Adapter or a Switch. Typically it would be a port going up or down due to reboot, cable insertion/removal, and so on. • Slow periodic sweep (MaxSweepInterval). • Initial QLogic Fabric Manager startup when Master • Manually requested by user (/opt/qlogic_fm/bin/fm_cmd smForceSweep) The primary mechanism for detecting changes is traps. Traps are asynchronous notifications sent to the SM by devices (typically switches) when ports go up/down, when capabilities change, or links are unstable. The slow periodic sweep is used as a safety net in case a trap is lost or a device does not issue traps. All InfiniBand switches sold by QLogic support traps. In extremely rare situations, the user may choose to force a sweep. This is generally not necessary when using fabrics constructed using QLogic supplied switches. Handling Unstable Fabrics During each sweep the SM analyzes the fabric and identifies what if anything has changed since the last sweep. If changes are detected, the SM will recompute the routes for the fabric and reprogram the devices in the fabric as needed. IB0054608-01 B 2-1
Page 1 and 2: User Guide Fabric Manager 7.0.1 IB0
Page 3 and 4: Table of Contents Preface Intended
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Page 9 and 10: Fabric Manager 7.0.1 User Guide D E
Page 11 and 12: Preface Intended Audience This manu
Page 13 and 14: For details about available service
Page 15 and 16: 1 Overview of the QLogic Fabric Man
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4 Virtual Fabrics Overview Virtual
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5 Embedded Fabric Manager Commands
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5-Embedded Fabric Manager Commands
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6 Installation and Set Up Installin
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A Fabric Manager Command Line Inter
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B QLogic Fabric Manager Log Message
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B-QLogic Fabric Manager Log Message
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C Mapping Old Parameters Versions o
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C-Mapping Old Parameters Old SM Par
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D QOS Options in a Mesh/Torus vFabr
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E ./INSTALL Syntax Syntax ./INSTALL
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Corporate Headquarters QLogic Corpo
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Fabric Manager Users Guide, Version 6.1, Revision A - QLogic

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