Dot Hill Systems II 200 FC service manual Larger Configurations

11.Connect the first server to port FC 0 of the upper controller and port FC5 of the lower controller.

12.Connect the second server to port FC 4 of the upper controller and port FC1 of the lower controller.

13.Connect the third server to port FC 5 of the upper controller and port FC0 of the lower controller.

14.Connect the fourth server to port FC 1 of the upper controller and port FC4 of the lower controller.

15.Install and enable multipathing software on each connected server.

5.1.4Connecting Two Hosts to One Host Channel (SATA Only)

Except in some clustering configurations, if you connect more than one host to channel 0 or channel 1 in a DAS loop configuration, you must use host filtering when you want to control host access to storage. Refer to the SANnet II Family RAID Firmware User’s Guide for information about host filters. Refer to the user documentation for your clustering software to determine whether the clustering software can manage host access in this configuration.

5.2Larger Configurations

Larger configurations are possible using additional expansion units connected to FC arrays or SATA arrays:

■Up to eight expansion units are supported when connected to a SANnet II 200 FC array.

■Up to five expansion units are supported when connected to a SANnet II 200 SATA array.

■Up to five SANnet II 200 FC expansion units and SANnet II 200 SATA expansion units can be combined when connected to a SANnet II 200 FC array. This enables you to use FC drives for primary online applications and SATA drives for secondary or near-line applications within the same RAID array.

Note – The SANnet II 200 SATA SE array does not support expansion units.

Certain limitations and considerations apply to these mixed configurations:

■Connect SANnet II 200 SATA expansion units only to host channels (channels 0, 1, 4, or 5) on the SANnet II 200 FC array that have been converted to drive channels. For information about converting host channels to drive channels, refer to the SANnet II Family RAID Firmware User’s Guide.

5-14SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005