Adding a redundant Power Supply Unit (PSU)
This guide goes over the process of adding a redundant power supply unit to certain SIRIS 6 models. For more information on acquiring a redundant PSU for the S6-6 and S6-8 devices, please reach out to your account manager.
Environment 
- S6-6
- S6-8
Process
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Power down the Datto device.
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Remove the power supply unit blank from the back of the device. It will be located next to the current power supply unit.
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Slide the PSU into the PSU bay until the it is fully seated, and the orange release latch snaps into place.
/PSUbackplate2.png)
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Connect the power cable to the PSU and plug the cable into a power outlet.
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Power on the Datto device.
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Press F11 when the Dell splash screen appears to enter the System Setup menu.
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Navigate to System Setup > iDRAC Settings > Power Configuration.
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For the Power Supply Redundancy Policy, change selection to Power Supply Redundant.
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Exit and save the configuration.
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Power on the Datto device.
If you have any issues, please reach out to Datto Technical Support for assistance.