Supplying power to metadata server engines

This topic describes information about supplying power to metadata server engines.

Problem: Because the external Remote Supervisory Adapter II (RSA) power is not required to ensure SAN File System metadata server redundancy, you must ensure that the power supply units for each metadata servers' engine are connected to separate and independent power supply circuits.

Solution:To properly install and configure SAN File System, each power supply within a metadata server's engine must have a separate and independent power circuit. If servers are connected in this manner, there cannot be a single point of failure in the configuration and no external RSA II power is necessary. The external RSA II power supply is not a SAN File System requirement for high availability. If you want additional power-supply redundancy, use a third independent circuit for the RSA II. You can order an RSA II power supply in addition to SAN File System to connect the RSA II and the third independent circuit. For additional instructions on installing SAN File System metadata server engines, refer to the SAN File System Planning, Installation, and Configuration Guide.

Parent topic: Troubleshooting the installation

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