NEC Express5800/R120e-2M User Manual page 74

Chapter 2 Preparations
Memory Mirroring feature can be used under the following conditions:
•
Install DIMMs in DIMM sockets configuring a mirror set.
•
All the installed DIMMs should have the same capacity.
•
See Chapter 2 (1. System BIOS) in "Maintenance Guide", check if your server supports Memory Mirroring
feature.
Select Advanced → Memory Configuration → Memory Information, and check if Supported is
displayed in Mirroring.
•
See Chapter 2 (1. System BIOS) in "Maintenance Guide", run SETUP, change parameters as shown
below, save the settings, and exit from SETUP.
Advanced → Memory Configuration → Memory RAS Mode → Change to Mirroring.
•
After restart, run SETUP again, and check if "Mirrored" is displayed for the following parameter.
Advanced → Memory Configuration → Memory Information → CPUx_DIMMx Status
•
Installation order depends on CPU configuration. See the figure below.
1CPU 構成 2CPU 構成
1CPU 2CPU
搭載順序 搭載順序
configuration configuration
2
4
6 11
2
4
6 11
5
3
1
5
3
1
12
12
10
10
Memory Mirroring cannot be configured in the following case:
•
Memory Mirroring within a specific memory channel
Notes on Configuring Memory Mirroring
In Memory Mirroring configuration, [Memory RAS Mode] menu is changed from "Mirroring" to "Independent" in
the following cases:
•
When you additionally install DIMMs that unable to configure Memory Mirroring
•
When you remove DIMMs that takes down Memory Mirroring
74
3 CPU1_DIMM 3
7 CPU1_DIMM 7
CPU1_DIMM 11
3 CPU1_DIMM 4
7 CPU1_DIMM 8
CPU1_DIMM 12
9 CPU1_DIMM 10
5 CPU1_DIMM 6
1 CPU1_DIMM 2
9 CPU1_DIMM 9
5 CPU1_DIMM 5
1 CPU1_DIMM 1
4 CPU2_DIMM 3
8 CPU2_DIMM 7
CPU2_DIMM 11
4 CPU2_DIMM 4
8
CPU2_DIMM 8
CPU2_DIMM 12
CPU2_DIMM 10
6 CPU2_DIMM 6
2
CPU2_DIMM 2
CPU2_DIMM 9
6 CPU2_DIMM 5
2 CPU2_DIMM 1
Express5800/R120e-2M User's Guide
1. Installing Internal Optional Devices