NEC Express5800 Series User Manual page 72

Chapter 2 Preparations
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Memory Sparing Feature
Memory Sparing feature puts a memory channel 2 of a memory controller in each CPU into standby status as
spare devices. If a correctable error occurs in a DIMM in the active memory controller, the feature automatically
changes the active DIMM from the failed one to a DIMM in the standby state to continue the processing.
The following table shows configuration allowable for memory sparing and system logical memory capacity.
Number of CPUs
1
2
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Note To use Memory Sparing feature, install N8102-693/694 additional memory card (two
DIMMs of same model).
The operating system can use the DIMMs as those with capacities less than the actual
Tips
physical capacities. The capacities vary depending on the number of DIMMs and the
physical capacity per DIMM.
Number of DIMMs
2
4
6
8
4
6
8
10
12
14
16
Express5800/T120g User's Guide
1. Installing Internal Optional Devices
Capacity of DIMM installed
N8102-693 (16 GB x2)
24 GB
48 GB
72 GB
96 GB
48 GB
72 GB
96 GB
120 GB
144 GB
168 GB
192 GB
N8102-694 (32GB x2)
48GB
96GB
144GB
192GB
96GB
144GB
192GB
240GB
288GB
336GB
384GB