PowerEdge 11th Generation Servers: R810, R910, and M910 Memory Guidance
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Figure 10. Example of Sparing for Dual Rank and Quad Rank DIMMs
Mirroring
For mirroring, the R910 will support 2P/4P configurations for >= 64 GB only. The R810 and M910 support
mirroring in 32 DIMM configurations >= 64 GB only. When mirroring is enabled, only half of the physical
memory will be visible to the system. A full copy of the memory is maintained, and, in the event of an
uncorrectable error, the system will switch over to the mirrored copy. The R910 uses intra-socket
mirroring.