Pre-Grant Publication Number: 20080028242
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Prior Art Detail
Summary / Description
| Summary / Description | A publication describing the remote control of performance-states on a cluster of servers to save energy. |
Basic Information
| Type of Prior Art | Print Publication |
| Publication Title * | Energy-Efficient Server Clusters |
| Author | E.N. Elnozahy, Mike Kistler, Ramakrishnan Rajamony |
| ISBN | 978-3-540-01028-9 |
| Page Range | 179-197 |
| Medium | Book excerpt |
| Publication Date * | January 1, 2003 |
| URL | https://commerce.metapress.com/... |
Notes / To Do
| Notes | |
Excerpt
Excerpt Coordinated Voltage Scaling (CVS): This policy uses dynamic voltage scaling in a coordinated manner to reduce cluster power consumption. In contrast to IVS, the cluster nodes coordinate their voltage scaling actions so that all nodes operate very close to the average frequency setting across the cluster. A centralized monitor periodically computes the average frequency setting of all active nodes and broadcasts it to all servers in the cluster. Each node then restricts its voltage scaling policy to a small interval of settings around this average frequency...
To implement the CVS policy, cluster processors must support software controlled dynamic voltage scaling, such as that afforded by AMD's PowerNow technology. In addition, CVS requires a central facility that monitors the frequency settings of all nodes and disseminates the average setting to the cluster. This monitoring facility can be implemented as a software service running on one of the cluster nodes (or a separate support server) with software probes running on each of the nodes. |
Relevance
Claims
1
A method for remotely controlling power consumption of at least one server, comprising:
providing remote control to an administrator over a power state of at least one server;
building an instruction command and encoding it into a suitable format for transport over a data network from an administration terminal to the at least one server; and
interpreting the command and executing the command by the at least one server without powering down the at least one server.
Relevance
Claim 1 is completely anticipated by the prior art. The CVS policy described in the prior art teaches the use of an (administrator) management server node to broadcast over a data network to multiple servers the power state (microprocessor voltage and frequency setting) that the multiple servers should use to operate. This is done periodically to save energy in response to changing workload demand.
Claim 1 is completely anticipated by the prior art. The CVS policy described in the prior art teaches the use of an (administrator) management server node to broadcast over a data network to multiple servers the power state (microprocessor voltage and frequency setting) that the multiple servers should use to operate. This is done periodically to save energy in response to changing workload demand.
Claim Chart
All
5
The method of Claim 1, wherein remote control over the subsystems includes remote control over a central processing unit of the at least one server.
Relevance
The prior art teaches the use of an administrative cluster node to remotely control the power state of the central processing unit of multiple servers in a cluster.
The prior art teaches the use of an administrative cluster node to remotely control the power state of the central processing unit of multiple servers in a cluster.
Claim Chart
All
9
A method for remotely controlling power consumption of plural servers from a remote location, comprising:
remotely initiating a change in a power consumption state of the servers by modulating clock speed of the plurality of servers;
remotely modulating clock speed on demand of the plural servers at the request of an administrator;
generating an appropriate command and encoding it into a format suitable for transport over a data network from an administration terminal to the plural servers; and
interpreting the command and executing the command by the plural servers.
Relevance
This is anticipated by the Coordinated Voltage Scaling (CVS) policy of the prior art. An administrative node remotely controls the power consumption of multiple servers by commanding them over a network to limit their central processing unit frequencies and voltages to modulate around a common, average frequency.
This is anticipated by the Coordinated Voltage Scaling (CVS) policy of the prior art. An administrative node remotely controls the power consumption of multiple servers by commanding them over a network to limit their central processing unit frequencies and voltages to modulate around a common, average frequency.
Claim Chart
All
16
A computer system for remotely controlling power consumption of plural servers from a host computer, comprising:
a power control module operating on the host computer configured to remotely initiate a change in a power consumption state of the plural remote servers;
a modulation module configured to dynamically modulate clock speed of the plural servers at the request of an administrator;
a command generation module configured to generate appropriate commands and encoding the commands into a format suitable for transport over a data network from an administration terminal to the plural servers; and
a module located at the servers configured to interpret the commands and execute the commands by the plural servers.
Relevance
This is anticipated by the Coordinated Voltage Scaling (CVS) policy of the prior art. An administrative node remotely controls the power consumption of multiple servers by commanding them over a network to limit their central processing unit frequencies and voltages to modulate around a common, average frequency.
This is anticipated by the Coordinated Voltage Scaling (CVS) policy of the prior art. An administrative node remotely controls the power consumption of multiple servers by commanding them over a network to limit their central processing unit frequencies and voltages to modulate around a common, average frequency.
Claim Chart
All
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