SYSTEM SOFTWARE UPDATE METHOD

• US 20110289494A1
• Filed: 08/02/2011
• Published: 11/24/2011
• Est. Priority Date: 11/15/2006
• Status: Active Grant

• Current Assignee: Masakuni Agetsuma, Takahiro Nakano
• Original Assignee: Masakuni Agetsuma, Takahiro Nakano
• Inventors: NAKANO, Takahiro, Agetsuma, Masakuni
• Granted Patent: US 8,255,898 B2
• Time in Patent Office: Days
• US Class Current: 717/168
• CPC Class Codes: G06F 11/1433 during software upgrading
• CPC Class Codes: G06F 11/203 using migration
• CPC Class Codes: G06F 11/2035 without idle spare hardware
• CPC Class Codes: G06F 11/2046 where the redundant components share persistent storage G06F11/2043 takes precedence
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57

Abstract

Provided is a computer system including a first server and a storage system. In the first server, a first virtual server and a second virtual server are operated. Upon reception of a request to boot the first virtual server, the second virtual server judges whether system software of the first virtual server, which is requested to be booted, matches system software of the first server in which the first virtual server is operated. In the case where the system software of the first virtual server and the system software of the first server do not match, the second virtual server updates the system software of the first virtual server before booting the first virtual server.

Claims

1. A computer system, comprising:

a first server which has a first processor, a first memory, and a first interface; and

a storage system which is coupled to the first server and has a storage unit for storing data and an input/output control unit for controlling input/output of data to/from the storage unit,

wherein each of the first processor, the first memory, and the first interface is logically divided,

wherein the divided first processor, the divided first memory, and the divided first interface are operated in the first server as an independent virtual servers,

wherein the virtual servers includes at least one first virtual server for providing a service and a second virtual server for managing the first virtual server,

wherein, upon reception of a request to boot the first virtual server, the second virtual server judges whether system software of the first virtual server which is requested to be booted matches system software of the first server in which the first virtual server is operated, and

wherein, in the case where the system software of the first virtual server and the system software of the first server do not match, the second virtual server updates the system software of the first virtual server before booting the first virtual server.