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3. Install the storage controller in the appropriate controller slot and connect all the cables to the storage controller.
CAUTION: When removing or replacing the PERC Mini Monolithic Controller, hold the card by its edges
marked by the blue touch points. Do not handle the card while holding the battery or the heatsink.
For more information, see the relevant figures in Removing The PERC Controller.
4. Replace the system cover.
5. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Support For Internal Multiple Controllers
On PowerEdge systems with dual bays (backplanes), the disk drives are managed by independent PERC H710P cards.
The PERC H710P cards do not share the disks or the RAID volumes. A drive can be identified using the following as
guideline: Controller: Bay/Backplane: Slot.
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 the
following figure.
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:
1. Set up an enclosure on the PERC H810 card.
2. Connect two SAS cables from the Out ports on your PERC H810 card to the In ports of the external enclosure. For
more information, see the following figure.
NOTE: For information on Unified Mode, see the enclosure documentation that was shipped with the
enclosure.
3. To 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.
Reverting To Single Path Support From Redundant Path Support For
PERC H810
If you need to revert to single path support from redundant path support, shut down the system and remove the exact
same cables that were added to support redundant path support, leaving only one connection between the controller
and enclosures. After you remove the cable and power up the system, ensure that there are no warning messages
during boot, and that all virtual disks are online and optimal. If you are using Dell OpenManage, see the Dell
OpenManage documentation at dell.com/support/manuals for additional instructions.
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