Precautions For Installation - Fujitsu M10-4 Service Manual

Precautions for power supply unit and fan unit replacement
Caution - Do not force the power supply unit or fan unit into its slot. Using excessive
force may damage the FRU and chassis.
The power supply units and cooling fans have redundant configurations. The
■
system can operate even if one power supply unit or one cooling fan in a fan unit
experiences a failure. However, avoid operating the system with a faulty power
supply unit or a faulty cooling fan in one of the fan units for an extended period.
Replace the unit containing the faulty power supply or faulty fan.
When replacing multiple power supply units or fan units, replace one unit at a
■
time. If redundancy of the power supply units or fan units cannot be secured,
perform maintenance with the system stopped.
The type of power supply unit or fan unit varies depending on the number of
■
CPU clocks.
Precautions for PCIe card replacement
For active maintenance using PHP, a multipath setting is necessary depending on
■
the use of the PCIe cards.
For active maintenance using PHP, confirm that the card supports PHP as
■
described in "Appendix A Cards That Support PCI Hot Plug and Dynamic
Reconfiguration" in the Fujitsu M10/SPARC M10 Systems PCI Card Installation
Guide. For active replacement combined with dynamic SR-IOV and the dynamic
reconfiguration function for the PCIe end point, confirm the supported card as
described in "Appendix B Cards That Support SR-IOV" and "Appendix D
Cards That Support the Dynamic Reassignment Function for the PCIe End Point
Device (PCIe Card)" in the same manual.
Precautions for operation panel replacement
To replace the operation panel, remove the PSU backplane from the chassis.
■
To replace the operation panel, set the BB-ID of the replacement operation panel to
■
the same value as that before replacement.
4.3.2

Precautions for installation

Before performing installation work, see
Identifying a
installation.
Precautions for expansion of the CPU memory unit upper
When installing a CPU memory unit upper, remove the filler unit. Store the
■
removed filler unit in a safe place because it will be needed if you subsequently
60 Fujitsu M10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual ･ June 2023
failure" to confirm that there is no problem with the chassis requiring
"Checking the FRU status" in "4.2.2