Sun Microsystems A3500FC manual Multi-Host

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2.2.6Multi-Host

FIGURE 2-7shows an example of a multi-host configuration: two hosts connected through fiber-optic cables to two StorEdge A3500FC controller modules using hubs.

Note –No other type of fibre channel device should share the same loop or hub connected to the A3500FC controller module.

Each controller that is connected to a hub must have a unique loop ID. Whenever you add a second controller to a hub, make sure that the loop ID of the controller being connected is different from the loop ID of any other controller currently connected to the same hub.

Refer to Section 2.3 “Setting the Loop ID” on page 2-13 for instructions on setting the loop ID of a controller.

Caution –Ensure that the controller module IDs are set so that each hub is connected to A and B controller canisters.

Chapter 2 FC-AL Host Connections 2-11

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Contents Sun StorEdge A3500/A3500FC Hardware Configuration Guide Please Recycle Contents Sun StorEdge A3500/A3500FC Configurations Sun StorEdge A3500 and A3500FCSpecifications Page How This Book Is Organized Using Unix CommandsShell Prompts Typographic ConventionsTable P-3Related Documentation Related DocumentationSun Welcomes Your Comments Sun Documentation on the WebScsi Host Connections Configuration Guidelines Single Host Connected to One Controller Module Supported Scsi Host Configurations2Two Controller Modules Daisy-Chained to One Host Two Controller Modules Daisy-Chained to One Host3Independent Controller Module Connected to Two Hosts Independent Controller Module Connected to Two HostsMulti-Host 4Two-Node Multi-Host ConfigurationUltra 2 Host System Power Connection Requirement Gain access to the AC power sequencers FC-AL Host Connections Differential Scsi terminators-HOST Supported FC-AL Host Configurations 2One Host Connected to One Controller Module Independent Controller Module Connected to Two Hosts 4Single Host Connected to One Controller Module Using Hubs Single Host Connected to One Controller Module Using HubsSingle Host Connected to Two Controller Modules Using Hubs 5Single Host Connected to Two Controller Modules Using Hubs FC-AL Host Connections Host Multi-Host Host Host adapter Setting the Loop ID Controller B 2 1 Dec Sun StorEdge A3500/A3500FC Configurations 1StorEdge D1000 Disk Array StorEdge D1000 Disk Array SettingsOption Switch 1 1x2 ConfigurationModule ID Switch 51x5 Option Switch Settings for StorEdge D1000 Disk Array 2 1x5 Configuration21x5 Module ID Switch Settings 82x7 Option Switch Settings for StorEdge D1000 Disk Array 3 2x7 Configuration32x7 Module ID Switch Settings 4 3x15 Configuration Scsi Jumper Cables and Terminators Driveside Scsi Connections 1x2 Cables and ConnectionsTerminator Power Connections 1x5 Cables and Connections Scsi jumper cable 16shows the power connections for 1x5 configurations Scsi Cable Lengths 2x7 Cables and ConnectionsController Module a 16shows the power connections for 2x7 configurations 3x15 Cables and Connections 11Controller Module B 3x15 Configuration Cables12Controller Module C 3x15 Configuration Cables 19shows the Scsi connections for controller module a 20shows the Scsi connections for controller module B 21shows the Scsi connections for controller module C Connections to AC Power Sources Connections Between Power Sequencers23Power Connections to Avoid Different Phases Power Connections for Expansion CabinetsPower connections for the 1x8 expansion cabinet are shown Page Initial Cold Start Surge Current Specifications Sun StorEdge A3500 and A3500FC SpecificationsTable A-2Cabinet Surge Current Specifications