Precautions For Replacement - Fujitsu M10-4 Service Manual

Table 7-2 Maintenance flow
Task
1 Preparation
2 Accessing a CPU memory
unit
3 Removal from the chassis
4 Removing the CPU
memory unit upper or
filler unit
5 Connecting a PCIe cable to
the CPU memory unit
lower
6 Switching the microSD card
7 Installing the CPU memory
unit upper or filler unit
8 Installation in the chassis
9 Restoring the chassis
10 Restoring the system
*1: Perform this procedure only when the PCIe cable is not connected to the CPU memory unit lower.
*2: You can revert to the same firmware version as that used before replacement, by using the microSD card
used before the replacement. (This is not a required task.)
7.2.3

Precautions for replacement

Note the following points when you replace a CPU memory unit:
Do not replace a CPU memory unit at the same time as the PSU backplane unit. If
■
you replace both a CPU memory unit and the PSU backplane unit at the same
time, the system will fail to operate normally. Replace the CPU memory unit or
PSU backplane unit, and then confirm that the newly installed part operates
normally by executing the showhardconf or showstatus command. Then, replace
the other Field Replaceable Units (FRUs).
When replacing the CPU memory unit, memory modules should be removed
■
from the old unit and remounted in the new one. Mount the new unit in the same
position as the old unit.
The weight of the CPU memory unit is 17 kg (37.4 lb). Maintenance must be done
■
by two people if the CPU memory unit is mounted at the 24 or higher U of the
rack. If you attempt to perform the maintenance work alone, you may injure
yourself or cause damage to the chassis.
Before replacing the CPU memory unit lower, execute the dumpconfig command
■
to save the system setting information. When the CPU memory unit lower is
replaced, the CPU Activation setting information and CPU Activation keys may
be deleted. To restore the CPU Activation setting information and CPU Activation
Lower unit Upper unit
replacement replacement
7.3 7.3
7.4.1 7.4.1
7.4.2 7.4.2
7.4.3 7.4.3
- -
7.6 (*2) -
7.7.1 7.7.1
7.7.2 7.7.2
7.7.3 7.7.3
7.8 7.8
Chapter 7 Maintaining the CPU Memory Units
Upper unit Upper unit
expansion reduction
7.3 7.3
7.4.1 7.4.1
7.4.2 7.4.2
7.4.3 7.4.3
7.5 (*1) -
- -
7.7.1 7.7.1
7.7.2 7.7.2
7.7.3 7.7.3
7.8 7.8
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