Patent ID: 8166273

Claim:
A degeneration method for an information processing apparatus comprising a plurality of partitioned portions each having a processing unit assigned thereto, a first system common unit shared by the multiple partitioned portions, a second system common unit shared by the partitioned portions, a storage portion, and a system control portion for controlling a system, the method comprising: detecting an abnormality in the first system common unit by the system control portion; reading a priority indication, from the storage portion, indicating whether or not the first system common unit is to be degenerated when an abnormality occurs in the first system common unit for each of the partitioned portions; carrying out, when an abnormality is detected in a partitioned portion to which the priority indication is set, suspend processing on the information processing apparatus by the system control portion; and carrying out degeneration processing for suspending operation of the first system common unit and switching to the second system common unit.