System redundancy verification method and computer system

A computer system, comprising at least one first computer, at least one second computer, a storage system, and a management computer for managing the at least one first computer and the at least one second computer,

• the at least one first computer including a first processor, a first memory coupled to the first processor, and a first I/O interface coupled to the first processor,
• the at least one second computer including a second processor, a second memory coupled to the second processor, and a second I/O interface coupled to the second processor,
• the storage system including a disk controller and a plurality of storage media, the disk controller including at least one controller each including at least one port,
• the management computer including a third processor, a third memory coupled to the third processor, and a third I/O interface coupled to the third processor,
• the at least one first computer being configured to execute a service,
• the at least one second computer being configured to take over the service, in a case where a failure occurs on the at least one first computer,
• the storage system being configured to provide the at least one first computer with a storage area for storing data necessary for executing the service,
• the management computer further including:
• a control part for determining whether a failover is implementable between the at least one first computer and the at least one second computer;
• and
• management information for storing configuration information on the at least one first computer and configuration information on the at least one second computer,
• the control part being configured to:
• refer to the management information to obtain first hardware information on hardware of the at least one first computer and second hardware information on hardware of the at least one second computer;
• refer to the management information to obtain first storage area information on the storage area provided to the at least one first computer;
• and
• transmit an instruction to obtain second storage area information on the storage area provided to the at least one first computer to the at least one second computer,
• the at least one second computer being configured to obtain the second storage area information from the storage system, and transmit the obtained second storage area information to the management computer, in a case of receiving the obtaining instruction,
• the control part being further configured to:
• compare the obtained first hardware information and the obtained first storage area information with the obtained second hardware information and the obtained second storage area information;
• and
• determine, based on a result of the comparison, whether the failover is implementable between the at least one first computer and the at least one second computer.