Adaptec 1966600 User Guide - Page 54
Active-Active Single Port Mode, Host 1 In CH 3, Disk CH 1, or Disk CH 2 are not cabled.
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DuraStor 6220SS/7220SS Installation and User's Guide Active-Active Single Port Mode This operating mode provides redundancy, transparent failover and failback, and high-performance. In this mode, LUNs appear only once to the operating system. Use this mode to achieve a faulttolerant disk subsystem with a single host computer. By default, the controller's operating mode is set to active-active single port. 1 Connect the SCSI data cables as shown in Figure 3-18. HBA 1 (ID 7) Host Computer 3-meter Cable DuraStor SCSI RAID Appliance SCSI Data Cable HOST 1 IN (CH 3) HOST 2 IN (CH 0) HOST 1 OUT HOST 2 OUT Disk CH 2 Disk CH 1 Serial B Ext Serial A Int HOST 1 IN (CH 3) HOST 2 IN (CH 0) HOST 2 OUT Figure 3-18 Active-active Single-port Cabling Diagram Note: External terminators are required for any dual controller configuration where Host 2 In (CH 0), Host 1 In (CH 3), Disk CH 1, or Disk CH 2 are not cabled. 2 Set the host system HBA to SCSI ID 7. Refer to your host system's user's guide for details on setting HBA SCSI IDs. 3 Power on the DuraStor External Storage Subsystem. See page 3-54. 3-20
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