发明名称 |
Computer system and availability method thereof |
摘要 |
High availability computer system and fault correction method. If a fault occurs in the current-system physical device allocated to the current-system virtual device of the virtual server, the virtualization mechanism of the physical server configures, for the standby-system virtual device of the virtual server, the standby-system physical device, as a physical device which is used at a high priority, and the virtualization mechanism distributes the request issued from the standby-system virtual device of another virtual server to a standby-system physical device, but, when such a standby-system physical device does not exist, the virtualization mechanism distributes the request to a standby-system physical device configured for high priority usage. |
申请公布号 |
US8874952(B2) |
申请公布日期 |
2014.10.28 |
申请号 |
US201013388948 |
申请日期 |
2010.03.05 |
申请人 |
Hitachi, Ltd. |
发明人 |
Tameshige Takashi;Takamoto Yoshifumi;Hatasaki Keisuke |
分类号 |
G06F11/00;G06F9/50 |
主分类号 |
G06F11/00 |
代理机构 |
Foley & Lardner LLP |
代理人 |
Foley & Lardner LLP |
主权项 |
1. A computer system comprising at least one physical server,
wherein the at least one physical server comprises: current-system physical devices; standby-system physical devices; and a virtualization mechanism which provides a plurality of virtual servers each comprising a current-system virtual device obtained by virtualizing the current-system physical devices, and a standby-system virtual device obtained by virtualizing the standby-system physical devices, wherein the virtualization mechanism is configured to: allocate, for occupied usage, the current-system physical devices to the current-system virtual devices of each of the plurality of virtual servers; and allocate, for shared usage, the standby-system physical devices to the standby-system virtual devices of the plurality of virtual servers, wherein, when a fault occurs in a first current-system physical device allocated to a first current-system virtual device of a first virtual server, the virtualization mechanism is configured to: configure a first standby-system physical device, which has not been configured as a physical device which is used at high priority by any of the standby-system virtual devices of the plurality of virtual servers, as a physical device which is used at a high priority by a first standby-system virtual device of the first virtual server; distribute a request issued from the first standby-system virtual device of the first virtual server to the first standby-system physical device configured as a physical device which is used at a high priority by the first standby-system virtual device of the first virtual server; and distribute a request issued from another standby-system virtual device of another virtual server to another standby-system physical device which has not been configured as a physical device which is used at a high priority by any of the standby-system virtual devices of the plurality of virtual servers when the another standby-system physical device exists. |
地址 |
Tokyo JP |