Patent ID: 7117141
Filing Date: 2006-10-03
Classification: G06F

Abstract:
1. A disk subsystem setting method of setting a first disk subsystem, for which setting information regarding path, logical unit number (LUN) security and logical volume for each volume in disk configuration is undefined using an information processing apparatus connected to the first disk subsystem and a second disk subsystem, for which setting information regarding path, LUN and logical volume for each volume is defined, comprising the steps of: receiving through an input apparatus of said information processing apparatus a first input to read said undefined setting information of said first disk subsystem from a first memory of said first disk subsystem by use of a file name; acquiring first attribute information including a number of ports, a port display name, and a disk capacity for a Redundant Array of Inexpensive Disks (RAID) previously stored in said first disk subsystem and said undefined setting information from said first disk subsystem by use of the file name; acquiring, in response to a second input through said input apparatus, second attribute information including a number of ports, a port display name, and a disk capacity for RAID previously stored in said second disk subsystem and said defined setting information including a path table, a LUN security table, and a logical volume table, from a second memory of said second disk subsystem by use of the file name; checking whether the number of ports of said first disk subsystem is equal to or greater than the number of ports of said second disk subsystem; checking whether all port display names in said first disk subsystem are included in the port display names of said second disk subsystem; checking whether the disk capacity for a RAID in said first disk subsystem is equal to or greater than the disk capacity for a RAID in said second disk subsystem; wherein if a result of any of the steps of checking the number of ports, checking the port display names, or checking the disk capacity is negative, then a command is not sent to change a setting of said first disk subsystem, otherwise proceeding to the steps of: checking whether no logical volume is set in said first disk subsystem, wherein if a result of the step of checking for no logical volume is negative, then a command is not sent to change the setting of said first disk subsystem, otherwise proceeding to a step of creating a logical volume in said first disk subsystem, when a create box has been set through said input apparatus; changing said undefined setting information based on said defined setting information by creating a same number of logical volume tables for logical volumes in said first disk subsystem as a number of logical volume tables for logical volumes in said second disk subsystem to extract difference information of said defined setting information of said path, LUN security, and logical volume tables and said undefined setting information of said path, LUN security and logical volume tables; creating a setting command to create a path, a LUN security, or a logical volume in said first disk subsystem based on said difference information; and sending said setting command to said first disk subsystem.