Patent ID: 6539461
Filing Date: 2003-03-25
Classification: G06F,Y10S

Abstract:
A data backup method in a first external storage device connected to a host device, said data backup method comprising:forming a connection between said first external storage device and a second external storage device; and copying data stored in said first external storage device to said second external storage device via said connection, wherein said copying step is performed based on a data backup start time in configuration information stored in said first external storage device, wherein said copying step is performed when a current time of a timer corresponds to said data backup start time and said copying step is over when said data backup has been completed, wherein said configuration information comprises a type of device flag which indicated whether said second external storage device is a magnetic tape type storage device, wherein said copying step is performed corresponding to a type of storage device indicated by said type of device flag, and wherein said copying step can be performed independent of said host device.