Dell H710P, H310 manual Setting up Redundant Path Support on the Perc H810 Adapter

Setting up Redundant Path Support on the PERC H810 Adapter

The PERC H810 card can detect and use redundant paths to disks contained in enclosures. With redundant paths to the same device, if one path fails, another path can be used to communicate between the controller and the device.

To set up a configuration with redundant paths, both ports on a controller must be cabled to the In ports of a single enclosure.

To add multiple enclosures, both Out ports of the first enclosure must be cabled to the In ports of the next enclosure.

If the connection between an Out port on the controller and an In port on an enclosure fails, an alternate path exists through the second Out port on the controller and the second In port on the enclosure. For more information, see Figure 3-4.

NOTE: The PERC H810 card supports redundant paths when used with

Dell PowerVault MD1200 and Dell PowerVault MD1220 disk storage enclosures.

Perform the following steps to configure the hardware to utilize redundant paths on the PERC H810 card:

1Set up an enclosure on the PERC H810 card.

2Connect two SAS cables from the Out ports on your PERC H810 card to the In ports of the external enclosure. For more information,

see Figure 3-4.

NOTE: For information on Unified Mode, see the enclosure documentation that was shipped with the enclosure.

3To add multiple enclosures, cable both Out ports of the first enclosure to both In ports of the next enclosure.

After you set up the hardware, the controller detects the redundant paths and automatically utilizes them to balance the I/O load.

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Deploying the PERC Card