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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.
•
Refer to 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.
•
Refer to 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
2CPU
1CPU 構成
2CPU 構成
configuration
configuration
搭載順序
搭載順序
2
3
4
7
6
11
2
3
4
7
6
11
5
9
3
5
1
1
5
9
3
5
1
1
4
8
12
4
8
12
10
6
2
10
6
2
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
70
CPU1_DIMM 3
CPU1_DIMM 7
CPU1_DIMM 11
CPU1_DIMM 4
CPU1_DIMM 8
CPU1_DIMM 12
CPU1_DIMM 10
CPU1_DIMM 6
CPU1_DIMM 2
CPU1_DIMM 9
CPU1_DIMM 5
CPU1_DIMM 1
CPU2_DIMM 3
CPU2_DIMM 7
CPU2_DIMM 11
CPU2_DIMM 4
CPU2_DIMM 8
CPU2_DIMM 12
CPU2_DIMM 10
CPU2_DIMM 6
CPU2_DIMM 2
CPU2_DIMM 9
CPU2_DIMM 5
CPU2_DIMM 1
Express5800/R120d-2M User's Guide
1. Installing Internal Optional Devices
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