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Note -
See the procedure for system-stopped maintenance for inactive/cold maintenance in a
single-chassis configuration.
Caution -
To completely shut down the system, all the power cords must be
removed. If the power cords are not removed, an electrical failure may occur.
A root complex consists of an I/O controller on a processor, PCI switches, and PCI
devices under the I/O controller.
■
For SPARC M10-4/M10-4S with two CPUs installed, if a CPU memory unit is
expanded in order to add two CPUs when the I/O bus reconfiguration is
"enabled", it will change the device paths of the I/O devices that have been used.
Before adding the memory unit, execute the setpparmode command by specifying
"false" for ioreconfigure with the -m function=mode option to "disable" the I/O bus
reconfiguration function.
7.2.5 Precautions for removal
Note the following points when you reduce a CPU memory unit upper:
■
You must also reduce the four PCIe cables for connecting the CPU memory unit
upper with the CPU memory unit lower.
■
If a CPU memory unit is diminished to remove two CPUs, it will eliminate the
root complexes for the two CPUs in use up to then, making some PCIe slots
unavailable. To make the PCIe slots available, execute the setpparmode command
by specifying "true" or "nextboot" for ioreconfigure with the -m function=mode
option to "enable" the I/O bus reconfiguration function. Since the I/O bus is
reconfigured, the physical partition must also be reconfigured.
7.3 Enabling the Removal of a CPU
Memory Unit
This section describes the preparations that must be completed prior to removing a
CPU memory unit. The preparation procedure differs depending on the maintenance
type as follows:
■
Active/Cold maintenance
■
Inactive/Cold maintenance
■
System-stopped maintenance
Fujitsu M10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual
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December 201388