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Execution resultEx
# numactl -H
available: 4 nodes (0-3)
node 0 cpus: 0 4
node 0 size: 8016 MB
node 0 free: 7536 MB
node 1 cpus: 1 5
node 1 size: 16384 MB
node 1 free: 15993 MB
node 2 cpus: 2 6
node 2 size: 8192 MB
node 2 free: 7912 MB
node 3 cpus: 3 7
node 3 size: 16384 MB
node 3 free: 15946 MB
node distances:
node
0
1
0: 10 15 15 15
1: 15 10 15 15
2: 15 15 10 15
3: 15 15 15 10
2.2
How to setup address based memory mirroring
Setting address based memory mirroring as follows:
1.
Installing necmemras
Install necmemras according to "3.1 Installing necmemras".
2.
Check NUMA node.
Execute necmemras with "--show" option, and confirm the NUMA node number and
memory riser number in the line marked with "Base Memory". See "4 Necmemras Command
Reference " for details of command line of necmemras command.
Execution resultEx
# ./necmemras --show
Memory RAS Mode: Lockstep
Node:0 MR#1-2 (Base Memory)
Node:1 MR#3-4
Node:2 MR#5-6
Node:3 MR#7-8
3.
Confirm the memory components.
In case of setup of address based memory mirroring, the mirrored memory riser must be
under the following rule. Before setup of address based memory mirroring, check the
mirrored memory riser confirmed by step2 satisfies the rule.
The populating rule for address based memory mirroring:
• The DIMMs used for Mirroring Pair between SMI channel must be of the same model.
In the supported system, if the capacities of each DIMM are same, the DIMMs are of the
same model. You can confirm the capacities of each DIMM by [System] tab -> [component]
-> [Memory] on Web console. Refer to "Express5800/A1040d, A2040d, A2020d, A2010d
User's Guide" for detailed information.
4.
Confirm the memory size the OS recognized before setup of address based memory
mirroring.
You can get the memory size of mirrored NUMA node by using the following numactl -H.
2
3
5
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