| 摘要 |
<p>If resources are allocated without considering physical layouts of virtualized physical resources, resources may be physically allocated astride logical partitions, so that a single physical failure may affect multiple logical partitions. Further, if a computer system that does not have a logical partition creation function is replaced with a computer having the logical partition creation function, it may not be possible to maintain the availability prior to migration if logical partitions are created without considering the physical configuration that had been considered prior to replacement. The present invention provides a method for retaining conditions to be ensured for guaranteeing availability of a storage subsystem and a host computer and amount of resources that can be used for creating logical partitions of the storage node when migrating a whole system from the storage subsystem to the storage node, computing a method for creating the logical partitions capable of maximizing the number of conditions that can be ensured for guaranteeing the availability within the range of the amount of resources, and presenting the maximum number of conditions (value of availability that the system has) and the method for creating logical partitions to the user.</p> |
