초록 ▼

The present invention provides a computer system having a backplane with a plurality of subsystems which can be individually switched on or off. The computer system comprises a backplane having a plurality of power zones, a power control circuit installed in the backplane for each of the power zones

The present invention provides a computer system having a backplane with a plurality of subsystems which can be individually switched on or off. The computer system comprises a backplane having a plurality of power zones, a power control circuit installed in the backplane for each of the power zones for controlling electric power supplied to the power zone from a power supply, and a subsystem installed in each of the power zones, each of the subsystems comprising an I/O (input/output) bus, at least one I/O slot connected to the I/O bus for connecting an I/O device, and a processor connected to the I/O bus for controlling operations of the subsystem. Each of the subsystems can be switched on or off by using the power control circuit of the power zone of the subsystem.

대표청구항 ▼

[ What is claimed is:] [1.] A computer system comprising:a backplane having a plurality of power zones;a plurality of subsystems installed in the corresponding power zones, each of the subsystems comprising an I/O (input/output) bus, at least one I/O slot connected to the I/O bus for connecting an I

[ What is claimed is:] [1.] A computer system comprising:a backplane having a plurality of power zones;a plurality of subsystems installed in the corresponding power zones, each of the subsystems comprising an I/O (input/output) bus, at least one I/O slot connected to the I/O bus for connecting an I/O device, and a processor connected to the I/O bus for controlling operations of the subsystem; anda plurality of power control circuits installed in the backplane for the corresponding power zones for controlling electric power supplied to the power zones from a power supply; rein each of the subsystems can be switched on or off by using the power control circuit of the power zone of the subsystem, at least one subsystem comprises a processor slot installed in its power zone, and the processor of the subsystem is installed on a processor card which is plugged in the processor slot of the subsystem; and rein the backplane further comprises a signal switch connected between the processor of the subsystem and the I/O bus of another subsystem, and a power switch connected between the processor of the subsystem and the power control circuit of another subsystem, wherein if the processor card of another subsystem is not installed on its processor slot, the signal switch and the power switch can be switched on so that the processor of the subsystem can control the I/O bus of another subsystem.