Computer system and data processing method
AssigneeNEC Corporation
InventorTakahiro Koishi
Life of this patent
Estimating the term…
Abstract
A computer system has a node and a service processor (SVP) connected together via a diagnosis section. An input/output (I/O) unit is connected to the SVP. The diagnosis section has a serial controller. The SVP writes data to be transmitted to the node from the I/O unit into the serial controller. The node reads data stored in the serial controller. The node also writes data to be transmitted to the I/O unit into the serial controller. The serial controller instructs the SVP to read the data written by the node. The SVP reads this data and sends it to the I/O unit.
Claims10
A computer system comprising:
- at least one main processor;
- a sub processor connected to an input/output unit which is operated by an operator;
- and
- a crossbar switch, connected to said at least one main processor and said sub processor, for transferring data between said main processor and said sub processor, said crossbar switch including a diagnosis section which diagnoses a failure in said main processor in accordance with a command input from said input/output unit and given to said sub processor,
- said diagnosis section being capable of receiving data to be transmitted to said main processor from said input/output unit via said sub processor and causing said main processor to read said data, and receiving data to be transmitted to said input/output unit from said main processor and transmitting said data to said input/output unit via said sub processor.
A data processing method for use in a computer system comprising at least one main processor, a sub processor connected to an input/output unit which is operated by an operator, and a diagnosis section which is connected to said main processor and said sub processor and diagnoses a failure in said main processor together with said sub processor in accordance with a command given from said input/output unit, said method comprising the steps of:
- transmitting first data to be transmitted to said at least one main processor to said sub processor from said input/output unit, allowing said sub processor to store said transmitted first data in said diagnosis section, allowing said main processor to read said first data stored in said diagnosis section and allowing said main processor to execute a process based on said read-out first data;
- and
- allowing said main processor to store second data to be transmitted to said input/output unit in said diagnosis section, allowing said sub processor to read said stored second data from said diagnosis section and transmit said second data to said input/output unit and allowing said input/output unit to display contents of said transmitted second data.
Dependencies are inferred from the claim text.