Patent ID: 8103721

Claim:
A computing system comprising: a first I/O interface associating with a server; and an I/O management unit coupled with the server and the first I/O interface, the I/O management unit including: an I/O buffer; an I/O mapping unit which stores an access request of the server to the first I/O interface in the I/O buffer in response to a change start request of the first I/O interface associated with the server to a second I/O interface to be associated with another server; an I/O changing unit which associates the second I/O interface with the another server; and an I/O synchronizing unit that converts the access request stored in the I/O buffer into an access request to the second I/O interface associated with the another server, in response to the completion of the association by the I/O changing unit, and executes the converted access request.