Fujitsu M10-4 - Before Maintaining a CPU Memory Unit; Maintenance Precautions; Maintenance Flow

9.2 Before Maintaining a CPU Memory
Unit
9.2.1 Maintenance precautions
Note the following points when you maintain the CPU memory 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.
■
Do not replace the CPU memory unit lower at the same time as the PSU backplane
unit. If you replace them at the same time, the system may fail to operate normally.
■
If you switch the microSD card when replacing the CPU memory unit lower, the
maintenance time is shorter since the XSCF setting information is inherited.
■
If the device uses the hardware RAID function, after replacing the CPU memory
unit lower, you need to reactivate the hardware RAID volume. For details, see
"14.2.11 Re-enabling a hardware RAID volume" in the Fujitsu M10/SPARC M10
Systems System Operation and Administration Guide.
■
When installing the CPU memory unit upper, you need to perform the work of
adding PCIe cables. For details, see "9.4 Installing a PCI Express Cable."
■
When you install/remove the CPU memory unit upper, the root complex is also
installed/removed. As a result, the PCIe card installation rules, etc. may change
and the logical domains may need to be reconfigured. For details, see "4.3.2
Precautions for installation" or "4.3.3 Precautions for removal."
9.2.2 Maintenance flow
Perform maintenance work on the CPU memory unit by following the procedures
shown in Figure 9-3 and Table 9-1.
Perform maintenance work on memory by following the procedures shown in Figure
9-4 and Table 9-4.
Fujitsu M10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual
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November 2014186