Patent ID: 8185775

Claim:
A virtual computer system comprising: a plurality of physical computers including first and second physical computers, the plurality of physical computers having logical partitions generated thereon and the first physical computer having a first logical partition; and a management apparatus that is connected to the plurality of physical computers via a network to manage the physical computers and logical partitions, and allows operating systems (OSs) to operate by generating the logical partitions on the physical computers, wherein the first physical computer includes: a first physical Host Bus Adapter (HBA); failure detection means for detecting a failure occurrence in the first physical computer or the first logical partition; and first management means for managing I/O configuration information of the first logical partition and a vfcWWN as a World Wide Name assigned to a logical HBA configured in the first logical partition, wherein the management apparatus includes: means for accepting notification of the failure occurrence from the failure detection means and for receiving the I/O configuration information of the first logical partition and the vfcWWN from the first management means; and means for determining the second physical computer substituting for the first physical computer and to transmit the I/O configuration information of the first logical partition and the vfcWWN to the second physical computer, and wherein the second physical computer includes: a second physical HBA; means for receiving the I/O configuration information of the first logical partition and the vfcWWN transmitted from the management apparatus; means for determining whether or not a second logical partition can be generated on the second physical computer on the basis of the I/O configuration information of the first logical partition; and means for generating the second logical partition on the basis of the vfcWWN when the means for determining determines that the second logical partition can be generated; wherein the I/O configuration information of the first logical partition includes information of the first physical HBA, and wherein said means for generating configures a logical HBA in the second logical partition to which the vfcWWN is assigned.