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US 2018/0018244 A1Published application
Node system, server apparatus, scaling control method, and program
AssigneeNEC Corporation
InventorsYuki YOSHIMURA, Tadaaki MIYATA, Hajime ZEMBUTSU, Takuya SHOJI, Hironori MAGATANI
Life of this patent
Estimating the term…
Abstract
A system includes an active system that executes processing, a standby system that is able to perform at least one of scale-up and scale-down, and a control apparatus that controls system switching to set the standby system undergoing the scaled up or scaled down as a new active system.
Claims26
A node system comprising:
- an active system that executes processing;
- a standby system that is able to perform at least one of scale-up and scale-down;
- and
- a control apparatus that controls system switching to switch the standby system undergoing the scale-up or scale-down to a new active system.
1 more element
A server apparatus comprising:
- at least a standby system of a redundant system constituted by an active system and the standby system;
- and
- a switching unit that switches the standby system undergoing scale-up or scale-down in advance to a new active system.
A server apparatus comprising:
- at least an active system of a redundant system constituted by the active system and a standby system,
- wherein the server apparatus switches the active system to a new standby system, and
- the apparatus performs scale-up or scale-down of the new standby system after system switching, in the same way as the standby system undergoing scale-up or scale-down in advance, the standby system being switched to a new active system by the system switching.
A server apparatus comprising:
- a plurality of virtual machines, a part of the virtual machines each constituting an active system that executes processing, and other part of the virtual machines each constituting a standby system being a switching target of the active system, wherein
- the server apparatus switches the standby system undergoing scale-up or scale-down in advance to a new active system.
A scaling control method comprising:
- when performing scale-up or scale-down of an active system, switching a standby system undergoing scale-up or scale-down in advance to a new active system;
- and
- switching the active system to a new standby system.
A non-transitory computer-readable recording medium storing therein a program causing a computer to execute processing comprising:
- when performing scale-up or scale-down of an active system, switching a standby system undergoing scale-up or scale-down in advance to a new active system.
Dependencies are inferred from the claim text.