More on DMP paths
In this configuration, there are two DMP paths, one going through Switch 1, which includes HBA 1 from Server A, HBA 1 from Server B, Channel 1 from the first direct-attached storage device, and Channel 1 from the second direct-attached storage device. The second path includes HBA 2 from Server A, HBA 2 from Server B, Channel 2 from the first direct-attached storage device, and Channel 2 from the second direct-attached storage device.
Warning: Do not have the second path to the storage connected to the SAN until DMP is installed and the storage array is included under DMP. If you allow two paths to the storage without DMP control, data can become corrupted.
The two switches keep the paths separate. You could use one large switch and zone it with two zones, one for each path.
In most DMP configurations, direct-attached storage is not included along with a storage array, but it is shown in this example to demonstrate that you can use direct-attached storage with DMP.
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