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CONFIGURATION GUIDE
–
NEC Express5800/A2040c, A2020c, A2010c, A1040c
NEC Corporation
Rev.2.0
–Sep. 2015
23
Lockstep Mode (only)
Memory Rank Sparing
under Lockstep Mode
Memory Mirroring
under Lockstep Mode
Summary
2
DRAM
failure
detected/corrected by
memory
parallel
operation
In case of correctable
errors, switching to spare
memory rank
Redundant memory
Available Memory
-
1/2(8GB RDIMM),
3/4, 1/2(16GB RDIMM)
of physical memory
1/2 of physical memory
Available Memory
Channel
3
4
4
4
Maximum Memory
Capacity 4
512GB(8GB RDIMM)
1024GB(16GB RDIMM)
2048GB(32GB RDIMM)
2048GB(32GB LRDIMM)
256GB(8GB RDIMM)
768GB, 512GB(16GB RDIMM)
256GB(8GB RDIMM)
512GB(16GB RDIMM)
Data Correction
ECC, DDDC
←
←
Notes
RDIMM and LRDIMM
cannot be mixed
Need to order memory for
sparing
Need to order memory for
mirroring
3
4 memory channels per Memory Riser Card
4
All DIMMs have the same capacity
Customized Configuration Service (at the Server Delivery)
Product Name/Description
Part Number
Customized Service: Distribution Mode for COPT
NE3300-SV101
NOTE:
This is the service product for A2040c COPT Model. With this service product, the location of installing
Memory Riser and Memory can be changed as required from the location defined by the standard BTO
Configuration.
Up to one item (service) can be ordered per one server.
When allocating enabled CPU cores to all CPU (distributed), this service is recommended to use so that
MR and Memory can be distributed, too. Please refer to
“Memory” of “Reference” section for the details.