Maintaining high availability during network partitions for virtual machines stored on distributed object-based storage
US-9513946-B2 · Dec 6, 2016 · US
Duplexed operation system and method therefor
US11803452B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11803452-B2 |
| Application number | US-202017429059-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 31, 2020 |
| Priority date | Feb 14, 2019 |
| Publication date | Oct 31, 2023 |
| Grant date | Oct 31, 2023 |
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Abstract
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A duplex operation system including: a plurality of general-purpose devices on each of which a plurality of virtual machines are mounted; and a virtual machine controller that controls a duplex operation performed by two systems, an active system and a standby system, of the virtual machines. When detecting a failure of the active system, the virtual machine controller stops the virtual machine of the active system, activates the virtual machine of the standby system corresponding to the stopped active system, and reconfigures the standby system of the activated virtual machine on the hardware of the stopped virtual machine, and when detecting a failure in the virtual machine of the reconfigured standby system, the virtual machine controller reconfigures the standby system of the failed virtual machine on the general-purpose device 13 different from the general-purpose device 11 in which the virtual machine of the active system has been stopped.
First claim
Opening claim text (preview).
The invention claimed is: 1. A duplex operation system comprising: a plurality of general-purpose devices on each of which a plurality of virtual machines are mounted; and a virtual machine controller that controls a duplex operation performed by two systems, an active system and a standby system, of the plurality of virtual machines, wherein: when detecting a failure of the active system, the virtual machine controller stops the virtual machine of the active system, activates the virtual machine of the standby system corresponding to the active system of the stopped virtual machine, and reconfigures the standby system of the activated virtual machine on hardware of the stopped virtual machine, and when detecting a failure in the virtual machine of the reconfigured standby system, the virtual machine controller reconfigures the standby system of the failed virtual machine on a general-purpose device different from the general-purpose device in which the virtual machine of the active system has been stopped. 2. The duplex operation system according to claim 1 , wherein when a restart of phase 0.5 or higher of a predetermined number or more of virtual machines occurs, or when failures of a predetermined number or more of virtual machines are detected, within a predetermined period on the general-purpose device, the virtual machine controller reconfigures the virtual machine, mounted on the general-purpose device, on another general-purpose device. 3. A duplex operation method performed by a virtual machine controller of a duplex operation system that includes: a plurality of general-purpose devices on each of which a plurality of virtual machines are mounted, and a virtual machine controller that controls a duplex operation performed by two systems, an active system and a standby system, of the plurality of virtual machines, the method comprising: in response to detecting a failure of the active system, the virtual machine controller stops the virtual machine of the active system, activates the virtual machine of the standby system corresponding to the active system of the stopped virtual machine, and reconfigures the standby system of the activated virtual machine on hardware of the stopped virtual machine; and in response to detecting a failure in the virtual machine of the reconfigured standby system, the virtual machine controller reconfigures the standby system of the failed virtual machine on a general-purpose device different from the general-purpose device in which the virtual machine of the active system has been stopped. 4. The duplex operation method according to claim 3 , wherein when a restart of phase 0.5 or higher of a predetermined number or more of virtual machines occurs, or when failures of a predetermined number or more of virtual machines are detected, within a predetermined period on the general-purpose device, the virtual machine controller reconfigures the virtual machine, mounted on the general-purpose device, on another general-purpose device.
Assignees
Inventors
Classifications
- G06F11/2028Primary
eliminating a faulty processor or activating a spare · CPC title
Hypervisor-specific management and integration aspects · CPC title
using centralised failover control functionality · CPC title
switching over of hardware resources · CPC title
Creating, deleting, cloning virtual machine instances · CPC title
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Frequently asked questions
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- What does patent US11803452B2 cover?
- A duplex operation system including: a plurality of general-purpose devices on each of which a plurality of virtual machines are mounted; and a virtual machine controller that controls a duplex operation performed by two systems, an active system and a standby system, of the virtual machines. When detecting a failure of the active system, the virtual machine controller stops the virtual machine…
- Who is the assignee on this patent?
- Nippon Telegraph & Telephone
- What technology area does this patent fall under?
- Primary CPC classification G06F11/2028. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 31 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).