Patent ID: 8155766
Filing Date: 2012-04-10
Classification: G06F,Y02D

Abstract:
1. A power-saving computer system comprising: a plurality of storage areas provided by one or more storage systems, including at least one first storage area which is always powered on and at least one second storage area which is periodically powered on and off according to a power control schedule; wherein the at least one first storage area provides primary and secondary volumes of a first backup set that is scheduled as always paired; wherein for a second backup set that is scheduled as normally suspended and resynchronized according to a backup schedule, a primary volume of the second backup set is included in the at least one first storage area and a secondary volume of the second backup set is included in the at least one second storage area; wherein the at least one second storage area having the secondary volume of the second backup set is powered on according to the power control schedule during every backup time for resynchronizing the second backup set according to the backup schedule; and wherein for a third backup set that is scheduled as normally suspended and resynchronized according to the backup schedule, a primary volume of the third backup set is included in the at least one first storage area and a secondary volume of the third backup set is also included in the at least one first storage area, if a backup time of the secondary volume of the third backup set does not match a time when the at least one second storage area is powered on according to the power control schedule.