Provided is a host computer which is connected to a system resource through n (n≧2) number of paths. The host computer includes: a plurality of logical partitions accessible to the system resource; an allocation unit that allocates the paths to the plurality of logical partitions; and an allocation table. The allocation table is user configurable and stores, in a correlated manner, information indicating the logical partitions and information capable of indicating the number of paths to be allocated to the logical partitions indicated by the information. The allocation unit allocates the paths to the logical partitions in accordance with the allocation table. This makes it possible to secure the I/O response also for logical partitions having a small amount of I/O.