Table of Contents
Advertisement
2-14
Memory Mirroring / Memory RAID Feature
M
emory Mirroring Feature
T
he memory mirroring feature places a me
en
counters an uncorrectable error, the mem
fe
ature is used, the current memory board and the standby memory board should be combined. Available combinations
ar
e:
Mirroring with memory boards 1 and 2
Mirroring with a pair of memory boards 1 and 2 and a pair of memory boards 3 and 4
To enable
the memory mirroring feature, the combined memory
The table b
elow shows combinations of memory boards installed.
Memory board 1
A
2GB (1GB*2)
B
8GB (2GB*4)
C
4GB (1GB*4)
Memory RAID
Feature
If one of
the
four
memory boards e
memory
boa
rd to
continue operatio
m
ust hav
e DIMMs of same capacity.
The table b
elow shows combinations
Memory board 1
A
2GB (1GB*2)
B
8GB (2GB*4)
C
4GB (1GB*4)
S
etting BIOS
nd select [Advanced] → Memory Configuration
Start SET P a
U
To
ena
ble the memory mi
To
ena
ble the memory RA
O
thers
Memory capacity displayed on the operating system = total capacity of physically installed memory –
capacity for standby memory
M
emory mirroring feature: 1/2 of actually installed memory capacity
Memory RAID feature: 3/4 of actually installed memory capacity
Enabling the memory mirroring or memory RAID feature does not inf
Each feature is automatically disabled when an error message is displayed:
The following indicates that the memory mirroring /memory RAID feature has worked:
a)
The Redundancy lamp on the front panel of the server lights green.
b) The failing DIMM group is degraded when the server restarts.
c)
If an ESMPRO Agent has been installed, the following log is registered as a system log
Source name:
Event ID:
Explanation:
mory board as spare memory in standby state. If the current memory board
ory mirroring feature switches to the standby memory board. When this
Memory board 2
Memory board 3
2GB (1GB*2)
2GB (1GB*2)
8GB (2GB*4)
8GB (2GB*4)
4GB (1GB*4)
–
ncounte
rs an uncorrectable e
n. To us
e this feature, four
memory board
of memory boards installed.
Mem
ory board 2
Memory board 3
2GB (1GB*2)
2GB (1GB*2)
8GB (2GB*4)
8GB (2GB*4)
4GB (1GB*4)
4GB (1GB*4)
[
rroring
feature: Select [M
irror].
ID fea
ture: Select [RAID
].
ESMCommonService
2313
Part of the DIMM was isolated due to a memory error.
boards must have DIMMs of same capacity.
Memory board 4
2GB (1GB*2)
8GB (2GB*4)
–
rror,
the memory RAID
feature
s m
ust be installed. Each memory board
Memory board 4
2GB (1GB*2)
8GB (2GB*4)
4GB (1GB*4)
] →
[Memory RAS Featu
re]
in order and set as foll
luence the operations of applications.
switches to the o
ther
ows:
of Event Viewer:
Advertisement
Table of Contents
