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Invalid path setup: too many paths to an array LUN (7-Mode)

Systems operating in 7-Mode require two paths to an array LUN; more than two paths to an array LUN is not supported.

The path setup in the following example is invalid because the same array LUN would be accessed over four paths instead of only two paths:

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In this invalid scenario, Connection 3 from 0a through Switch 1 is incorrectly zoned to both Connection 4 and Connection 5. Likewise, Connection 3 from 0c through Switch 2 is incorrectly zoned to both Connection 4 and Connection 5. The result is that array LUN 1 is seen over more than two paths.

For this configuration to be correct for 7-Mode, FC initiator port 0a must see either Controller 1 Port A or Port B on the storage array, but not both. Likewise, FC initiator port 0c must see either port Controller 2 Port A or Port B on the storage array, but not both.