Information processing apparatus and failure detection method of information processing apparatus

A failure detection method of an information processing apparatus that includes a storage device that outputs stored data in accordance with a memory access request that is received, an arithmetic processing unit that performs an arithmetic operation on data that is output by the storage device, a first converting device that is connected to the storage device and the arithmetic processing unit, and a second converting device that is connected to the storage device and the arithmetic processing unit, the failure detection method comprising:

• converting, performed by a first converting unit included in the first converting device, a memory access request issued by the arithmetic processing unit to a memory access signal;
• sending, performed by a sending unit included in the first converting device, the memory access signal converted by the first converting unit to the storage device;
• converting, performed by a second converting unit included in the second converting device, a memory access request issued by the arithmetic processing unit to the memory access signal;
• acquiring, performed by an acquiring unit included in the second converting device, the memory access signal sent by the first converting device to the storage device;
• and
• comparing, performed by a determining unit included in the second converting device, the content of a memory access performed by using the memory access signal converted by the second converting unit with the content of a memory access performed by using the memory access signal acquired by the first acquiring unit and determining, when the contents of the memory accesses performed by the memory access signals do not match, that the first converting device has failed.