Server migration planning system and server migration planning method

A server migration planning method for planning server migration from m source servers to at least N destination servers in which m is an integer not less than 2 and N is an integer not less than 1, comprising:

• (A) reading a first data indicating resource usage of said respective source servers from a memory device;
• (B) reading a second data indicating resource capacity of said respective destination servers from a memory device;
• and
• (C) allocating said respective source servers to any ones of said destination servers based on said first data and said second data,
• wherein said (C) allocating includes:
• (C1) selecting said source servers one-by-one in descending order of said resource usage and selecting any one of said destination servers;
• (C2) making a comparison between a comparison-object usage, which is said resource usage of said selected source server, and a remaining amount of said resource capacity of said selected destination server;
• (C3) carrying out said comparison again after selecting another destination server different from said selected destination server, in a case where said comparison-object usage is more than said remaining amount;
• and
• (C4) allocating said selected source server to said selected destination server, in a case where said comparison-object usage is not more than said remaining amount.

A server migration planning program recorded on a computer-readable medium that, when executed, causes a computer to perform a method of planning server migration from m source servers to at least N destination servers in which m is an integer not less than 2 and N is an integer not less than 1,

• said method comprising:
• (A) reading a first data indicating resource usage of said respective source servers from a memory device;
• (B) reading a second data indicating resource capacity of said respective destination servers from a memory device;
• and
• (C) allocating said respective source servers to any ones of said destination servers based on said first data and said second data,
• wherein said (C) allocating includes:
• (C1) selecting said source servers one-by-one in descending order of said resource usage and selecting any one of said destination servers;
• (C2) making a comparison between a comparison-object usage, which is said resource usage of said selected source server, and a remaining amount of said resource capacity of said selected destination server;
• (C3) carrying out said comparison again after selecting another destination server different from said selected destination server, in a case where said comparison-object usage is more than said remaining amount;
• and
• (C4) allocating said selected source server to said selected destination server, in a case where said comparison-object usage is not more than said remaining amount.