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Server+ Certification Training Guide by Server+ Certified Technician Elton Jernigan

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Redundant Components

  • 0.10 Identify hardware components that might fail and plan on redundancy of those components. Content may include the following:

    • Power supplies

    • Fans

    • Hot swap

    • Hot plug

    • Fail-over

    • Hot spare

    • NIC fail-over

To keep network servers operational around the clock, you can use redundant components in the network server in several different schemes.

Redundant Power Supplies

Having multiple power supplies in a network server allows the balancing of the electrical load amount the power supplies and allows for fault tolerance if one of the power supplies should fail. Many redundant power supply schemes allow for a failed power supply to be removed and replaced while the network server is operational. This capability is called hot swappable

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