Fujitsu SPARC M10-1, Service Manual

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Table 7-1 Types of maintenance performed on the motherboard unit
Active/hot Inactive/hot
(system
stopped/hot)
Inactive/cold
(system
stopped/cold)
- - OK
Table 7-2 Flow of maintenance
Task Replacement
1 Preparation 7.3
2 Removal of the motherboard unit 7.4
3 Switching of the microSD card 7.5 (*)
4 Installation of the motherboard unit 7.6
5 System restoration 7.7
* You can revert to the same firmware version as that used before the replacement, by using the microSD card
used before the replacement. (This is not a required procedure.)
7.2.1 Types of maintenance
Table 7-1 lists the types of maintenance to be performed on the motherboard unit. For
the definition of maintenance, see " 4.3 Understanding Types of Maintenance ."
7.2.2 Flow of maintenance
Table 7-2 shows the maintenance procedure for the motherboard units. See the
relevant section.
7.2.3 Precautions for replacement
Note the following points when replacing the motherboard unit.
■
Do not replace the motherboard unit and the PSU backplane at the same time. If
you replace the motherboard unit and the PSU backplane at the same time, the
system may fail to operate correctly. Replace the motherboard unit or the PSU
backplane, and then execute the showhardconf or showstatus command to verify
that the replaced Field Replaceable Unit (FRU) is fully operational. Then, replace
the other FRU.
■
The CPU and XSCF on the motherboard unit cannot be replaced individually.
Replace the motherboard unit.
■
When replacing the motherboard unit, the memory should be removed from the
old unit and remounted on the new unit. Always mount the memory modules in
the same locations as they were mounted on the old motherboard unit.
Chapter 7 Maintaining the Motherboard Unit 61