Adaptec 412R User Guide - Page 36
Basic Active-Active Single-Port Topology
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Setting Up Your Storage Subsystem Basic Active-Active Single-Port Topology Choose this topology when your application requires a highperformance, robust, full system-level fault-tolerant disk storage solution with transparent controller failover/failback. This dual controller configuration supports a host with a single-port HBA and is ideal when the host driver software does not support LUNs that appear twice. Note: This configuration is shown with hubs enabled. Connect the fibre channel data cables as shown in Figure 2-27 and Figure 2-28. CH 1 CH 2 Host I/O P1 Host System #1 HBA #1 P2 P4 RAID Controller HUB FC1 Active Disk CH1 HUB FC2 Passive Disk CH2 Disk CH0 Drives 7 - 12 Drives 1 - 6 SEP Termination SEP SAF-TE Disk I/O Disk P3 CH3 Controller 1 Termination Jumper Cable CH 0 CH 3 RAID Controller Host I/O Connectors FC1 Passive FC2 Active Disk CH1 Termination Disk CH2 Termination Disk CH0 Termination Disk CH3 Controller 2 Termination I/O Card Figure 2-27 Logical Diagram - Single Host, Single HBA, Hubs Enabled Host Computer FC HBA 1 Power Power Supply Supply Cooling Fans Fibre Channel Data Cable Connect to P2 SAFTE Disk I/O Chl 1 Chl 2 I/O Chl 0 Chl 3 Host I/O P1 P2 P4 P3 RAID Controller RAID Controller Ctlr 1 SAF-TE Ctlr 2 Fibre Channel Jumper Cable Figure 2-28 Host Cabling Diagram - Single Host, Single HBA, Hubs Enabled 2-23
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