Log memory access circuit, information processing apparatus

An information processing apparatus connected to a first log obtaining apparatus for accessing a log memory for a log and a second log obtaining apparatus for accessing the log memory for the log, the information processing apparatus comprising:

• a controller connected to the first log obtaining apparatus, said controller accessing the log memory;
• a connection unit connected to the second log obtaining apparatus for accessing the log memory;
• a connection-channel switching unit for switching between a first connection channel for connecting the log memory to the controller, and a second connection channel for connecting the log memory to the connection unit;
• a switch instruction unit for issuing an instruction for switching between the first connection channel and the second connection channel to the connection-channel switching unit;
• a first power supply unit for supplying power to the individual units;
• and
• a second power supply unit for supplying power from the second log obtaining apparatus to the individual units upon the power of the first power supply unit being turned off.

An information processing apparatus connected to a first log obtaining apparatus for accessing a log memory for a log and a second log obtaining apparatus for accessing the log memory for the log, the information processing apparatus comprising:

• a controller connected to the first log obtaining apparatus, said controller accessing the log memory;
• a connection unit connected to the second log obtaining apparatus for accessing the log memory;
• a connection-channel switching unit for switching between a first connection channel for connecting the log memory to the controller and a second connection channel for connecting the log memory to a connection controller;
• the connection controller for inputting a switching instruction, sent from the second log obtaining apparatus connected to the connection unit, to a switch instruction unit, said the connection controller being connected to the second connection channel of the connection-channel switching unit;
• the switch instruction unit for issuing an instruction for switching between the first connection channel and the second connection channel to the connection-channel switching unit, in response to the switching instruction;
• a first power supply unit for supplying power to the individual units;
• and
• a second power supply unit for supplying power, supplied from the second log obtaining apparatus, to the individual units upon the power of the first power supply being turned off.