Patent application number | Description | Published |
20080222632 | VIRTUAL MACHINE SYSTEM - A virtual machine system in which a physical CPU busy ratio can be measured in consideration of the status of an assignment of the physical CPU, and the measured CPU busy ratio can be reflected to a CPU busy ratio of each guest OS. An elapsed time counter is provided in a hypervisor, and a hypervisor access interface is provided in each of LPARs and used to read the elapsed time counter from the guest OS. A performance monitor program running on each guest OS calculates, based on a value of the elapsed time counter, the number of sampling timings expected to occur during the time when the physical CPU is not assigned to the LPAR in which the performance monitor program is provided. | 09-11-2008 |
20080301487 | VIRTUAL COMPUTER SYSTEM AND CONTROL METHOD THEREOF - When a failure occurs in an LPAR on a physical computer under an SAN environment, a destination LPAR is set in another physical computer to enable migrating of the LPAR and setting change of a security function on the RAID apparatus side is not necessary. When a failure occurs in an LPAR generated on a physical computer under an SAN environment, configuration information including a unique ID (WWN) of the LPAR where the failure occurs is read, a destination LPAR is generated on another physical computer, and the read configuration information of the LPAR is set to the destination LPAR, thereby enabling migrating of the LPAR when the failure occurs, under the control of a management server. | 12-04-2008 |
20080307216 | METHOD AND APPARATUS FOR BOOTING A COMPUTER SYSTEM - In investigating the cause of a fault in a computer storage system, it is considered useful to previously prepare maintenance logical units (LUs) of a simple structure, the operation of which has been confirmed. If the same number of LUs as servers are prepared for each server as in the prior art, the efficiency is low. Furthermore, securing these LUs complicates assignment of the LUs for construction of a system and a work for addressing the fault. The present invention provides a computer system free of these problems. The computer system has a first computer for executing a first OS (operating system), a second computer for executing a second OS, and a storage array system. The storage array system uses a disk device having a logical unit (LU) for storing a boot loader, as well as the first and second OSes. The boot loader is executed on any one of the two computers, reads in any of the OSes corresponding to the currently operating computer into this operating computer, and executes the read OS. | 12-11-2008 |
20100031258 | VIRTUAL MACHINE SYSTEM AND CONTROL METHOD OF THE VIRTUAL MACHINE SYSTEM - In a control method of a virtual machine system, when a virtual machine operating in a physical machine is transferred to another physical machine, a management server stops the virtual machine of transfer source and defines a virtual machine of transfer destination in the other physical machine. A virtual network address and a virtual storage interface address of the virtual machine of transfer source is exchanged with a virtual network address and a virtual storage interface address defined in the virtual machine of transfer destination in the state that the virtual machine is prevented from being activated and then prevention of activation of the virtual machine of transfer destination is canceled, so that transfer processing can be made safely by simple procedure. | 02-04-2010 |
20110022887 | VIRTUAL COMPUTER SYSTEM AND CONTROL METHOD THEREOF - When a failure occurs in an LPAR on a physical computer under an SAN environment, a destination LPAR is set in another physical computer to enable migrating of the LPAR and setting change of a security function on the RAID apparatus side is not necessary. When a failure occurs in an LPAR generated on a physical computer under an SAN environment, configuration information including a unique ID (WWN) of the LPAR where the failure occurs is read, a destination LPAR is generated on another physical computer, and the read configuration information of the LPAR is set to the destination LPAR, thereby enabling migrating of the LPAR when the failure occurs, under the control of a management server. | 01-27-2011 |
20120023349 | INFORMATION PROCESSING APPARATUS AND POWER SAVING MEMORY MANAGEMENT METHOD - An information processing apparatus has a task area unit as an area that executes a predetermined process, a power control unit that reads a task area to execute the process from the process and supplies power from a power source to the read task area, and a control unit that executes the process in the task area unit to which the power is supplied by the power control unit. | 01-26-2012 |
20120204175 | VIRTUAL COMPUTER SYSTEM AND CONTROL METHOD THEREOF - When a failure occurs in an LPAR on a physical computer under an SAN environment, a destination LPAR is set in another physical computer to enable migrating of the LPAR and setting change of a security function on the RAID apparatus side is not necessary. When a failure occurs in an LPAR generated on a physical computer under an SAN environment, configuration information including a unique ID (WWN) of the LPAR where the failure occurs is read, a destination LPAR is generated on another physical computer, and the read configuration information of the LPAR is set to the destination LPAR, thereby enabling migrating of the LPAR when the failure occurs, under the control of a management server. | 08-09-2012 |
20120272091 | PARTIAL FAULT PROCESSING METHOD IN COMPUTER SYSTEM - As regards a hardware fault which has occurred in a computer, a hypervisor notifies an LPAR which can continue execution, of a fault occurrence as a hardware fault for which execution can be continued. Upon receiving the notice, the LPAR notifies the hypervisor that it has executed processing to cope with a fault. The hypervisor provides an interface for acquiring a situation of a notice situation. It is made possible to register and acquire a situation of coping with a hardware fault allowing continuation of execution through the interface, and it is made possible to make a decision as to the situation of coping with a fault in the computers as a whole. | 10-25-2012 |
20130014109 | VIRTUAL COMPUTER SYSTEM AND CONTROL METHOD THEREOF - When a failure occurs in an LPAR on a physical computer under an SAN environment, a destination LPAR is set in another physical computer to enable migrating of the LPAR and setting change of a security function on the RAID apparatus side is not necessary. When a failure occurs in an LPAR generated on a physical computer under an SAN environment, configuration information including a unique ID (WWN) of the LPAR where the failure occurs is read, a destination LPAR is generated on another physical computer, and the read configuration information of the LPAR is set to the destination LPAR, thereby enabling migrating of the LPAR when the failure occurs, under the control of a management server. | 01-10-2013 |