According to an embodiment, a cloud system management apparatus includes an estimator, a detector, a determination processor, and a reallocator. The estimator is configured to estimate breach information based on quality information representing a quality level to be achieved by a service process operating in any one of server devices in a cloud system. The breach information represents a degree by which the service process is incapable of achieving the quality level. The detector is configured to detect a failure of each server device. The determination processor is configured to determine, to reallocate at least one first service process operating on a first server device whose failure is detected, a second server device having a smaller sum of the breach information on at least one second service process operating on the second server device. The reallocator is configured to reallocate the first service process to the second server device.
