Patent ID: 7194491
Filing Date: 2007-03-20
Classification: G06F,H04L,Y10S

Abstract:
1. A backup management device for transmitting data across a network from a backup source recording device to at least one backup destination recording device, the backup management device comprising: a backup destination count determination unit configured to determine, based on a size of the data, a number N of backup destination recording devices, wherein N=ZU/T rounded up to an integer value, wherein Z denotes an amount of data output by the backup management device to the network during a unit hour, U denotes a number of users employing the backup management device, and T denotes a value between an amount of data processed by one backup destination recording device during a unit hour and a minimum throughput value of links of the network; a backup destination selector coupled to the backup destination count determination unit, wherein the backup destination selector is configured to; employ characteristics of multiple available backup destination recording devices to extract combinations of N backup destination recording devices from a plurality of backup destination recording devices; calculate an imposed load E=N12+N22+ . . . +Nk2, for each extracted combination of N backup destination recording devices; and a data transmitter configured to transmit the data to the N backup destination recording devices selected by the backup destination selector, wherein the data transmitter is coupled to the backup destination selector.