USRE46520E1 - Server cluster and control mechanism thereof - Google Patents
Server cluster and control mechanism thereof Download PDFInfo
- Publication number
- USRE46520E1 USRE46520E1 US14/686,458 US201514686458A USRE46520E US RE46520 E1 USRE46520 E1 US RE46520E1 US 201514686458 A US201514686458 A US 201514686458A US RE46520 E USRE46520 E US RE46520E
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- US
- United States
- Prior art keywords
- network
- signal
- power
- server node
- server
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
- G06F1/3209—Monitoring remote activity, e.g. over telephone lines or network connections
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3006—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system is distributed, e.g. networked systems, clusters, multiprocessor systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3055—Monitoring arrangements for monitoring the status of the computing system or of the computing system component, e.g. monitoring if the computing system is on, off, available, not available
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
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- H04L12/24—
-
- H04L12/26—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0709—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in a distributed system consisting of a plurality of standalone computer nodes, e.g. clusters, client-server systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/356—Switches specially adapted for specific applications for storage area networks
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- Y02B60/1282—
-
- Y02B60/34—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Definitions
- the invention relates in general to a server cluster and a control mechanism thereof.
- the blade server is optimized with modular design to reduce the physical space and energy to a minimum and further simplify the server configuration.
- the operation of the blade server relies on manual operation, or, the administrator can turn off the power with a baseboard management controller (BMC) operated by a remote-end management server.
- BMC baseboard management controller
- the aforementioned mechanism must use a remote-end management server and a baseboard management controller, so the cost of the blade serve cannot be effectively reduced.
- the invention is directed to a server cluster and a control mechanism thereof.
- the power of the server node is turned off according to a detected power-off packet of a network without using any baseboard management controller (BMC), so that the cost of the blade serve can be effectively reduced.
- BMC baseboard management controller
- a server cluster including a network switch and multiple server nodes.
- the network switch is connected to an external network.
- Each server node performs an operation system and respectively includes a network port, a network chip and a south bridge chip.
- the network port is connected to the network switch via a cable.
- the network chip outputs a power-off signal according to a received power-off packet after the network switch is started.
- the south bridge chip outputs a shutdown signal to shut down the server node according to the power-off signal when the server node is turned on and the operation system is working normally.
- a control mechanism of a server cluster includes a network switch and multiple server nodes. Each server node performs an operation system and respectively includes a network port, a network chip and a south bridge chip.
- the network switch is connected to an external network.
- the network port is connected to the network switch via a cable.
- the control mechanism of a server cluster includes the following steps. A network switch is started. A network chip is used for outputting a power-off signal according to a received power-off packet. When the server node is turned on and the operation system is working normally, the south bridge chip is used for outputting a shutdown signal to shut down the server node according to the power-off signal.
- FIG. 1 shows a server cluster according to one embodiment of the invention
- FIG. 2 shows a flowchart of a control mechanism of a server cluster according to one embodiment of the invention
- FIG. 3 shows a circuit diagram of an example of a pulse delay circuit according to one embodiment of the invention.
- the invention relates to a server cluster and a control mechanism thereof.
- the power of the server node is turned off according to a detected power-off packet of a network without using any baseboard management controller (BMC), so that the cost of the blade serve can be effectively reduced.
- BMC baseboard management controller
- the server cluster 100 includes a network switch 110 and multiple server nodes 120 .
- the network switch 110 is connected to an external network such as an Internet.
- Each server node 120 includes a network port 124 , a network chip 126 , a south bridge chip 128 and a pulse delay circuit 130 .
- the network port 124 is connected to the network switch 110 via a network link 122 such as a cable.
- the network chip 126 outputs a power-off signal according to a received power-off packet after the network switch 110 is turned on.
- the power-off packet is such as but not limited to a network reboot on LAN (ROL) packet or a network wake on LAN (WOL) packet.
- the south bridge chip 128 is electrically connected to the network chip 126 .
- the pulse delay circuit 130 is electrically connected to the network chip 126 and the south bridge chip 128 .
- step S 200 a network switch 110 is started.
- step S 210 a power-off packet is received by a network chip 126 , and a power-off signal PWR_OFF_L is outputted accordingly.
- step S 220 whether the server node 120 is turned on is judged. If the server node 120 is turned off, then none of the south bridge chip 128 and the pulse delay circuit 130 needs to generate action, and the process returns to step S 200 . If the server node 120 is turned on, then the process proceeds to step S 230 . In step S 230 , whether the operation system of the server node 120 is abnormal such as crash or hang-up is judged.
- step S 240 the pin of a system management interrupt (SMI) of the south bridge chip 128 is enabled by the power-off signal PWR_OFF_L to generate a shutdown signal SCI to notify the operation system to shut down the server node 120 .
- step S 250 the server node 120 is shut down. If the operation system of the server node 120 is abnormal such as hang-up, then the process proceeds to step S 260 .
- SMI system management interrupt
- step S 260 the power-off signal PWR_OFF_L is transformed into a delay signal and further transmitted the delay signal to the south bridge chip 128 by the pulse delay circuit 130 , such that the south bridge chip 128 outputs a power signal PWR_BUT_L to shut down the server node 120 .
- the pulse delay circuit 130 substantially detects an on/off state of the server node 120 according to a signal SLP_S 5 _L of the south bridge chip 128 .
- the pulse delay circuit 130 transforms a power-off signal PWR_OFF_L into a low level delay signal whose pulse width amounts to 4 seconds when the server node 120 is turned on and the operation system is abnormal.
- the low level delay signal whose pulse width amounts to 4 seconds enables the south bridge chip 128 to force the operation system to shut down the server node 120 .
- FIG. 3 a circuit diagram of an example of a pulse delay circuit according to one embodiment of the invention is shown.
- the power-off signal PWR_OFF_L whose pulse width is merely a few micro-seconds is inverted first. Then, the pulse width is delayed by an RC circuit.
- the signal SLP_S 5 _L is outputted when the server node 120 is turned on and inverted as a low level delay signal whose pulse width amounts to 4 seconds.
- a power-off packet of the network such as a network reboot on LAN (ROL) packet or a network wake on LAN (WOL) packet, is detected with a simple logic circuit to turn off the power of the server node without using a baseboard management controller, such that the cost of the server cluster can be effectively reduced.
- ROL reboot on LAN
- WOL network wake on LAN
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Power Sources (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/686,458 USRE46520E1 (en) | 2011-10-05 | 2015-04-14 | Server cluster and control mechanism thereof |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW100136173A TWI463831B (en) | 2011-10-05 | 2011-10-05 | Server cluster and control method thereof |
TW100136173A | 2011-10-05 | ||
US13/449,630 US8819469B2 (en) | 2011-10-05 | 2012-04-18 | Server cluster and control mechanism thereof |
US14/686,458 USRE46520E1 (en) | 2011-10-05 | 2015-04-14 | Server cluster and control mechanism thereof |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/449,630 Reissue US8819469B2 (en) | 2011-10-05 | 2012-04-18 | Server cluster and control mechanism thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE46520E1 true USRE46520E1 (en) | 2017-08-22 |
Family
ID=48023214
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/449,630 Ceased US8819469B2 (en) | 2011-10-05 | 2012-04-18 | Server cluster and control mechanism thereof |
US14/686,458 Active 2032-09-30 USRE46520E1 (en) | 2011-10-05 | 2015-04-14 | Server cluster and control mechanism thereof |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/449,630 Ceased US8819469B2 (en) | 2011-10-05 | 2012-04-18 | Server cluster and control mechanism thereof |
Country Status (3)
Country | Link |
---|---|
US (2) | US8819469B2 (en) |
CN (1) | CN103036699A (en) |
TW (1) | TWI463831B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI454092B (en) * | 2011-09-29 | 2014-09-21 | Quanta Comp Inc | Server cluster and control mechanism |
CN106330991B (en) * | 2015-06-17 | 2019-06-21 | 先智云端数据股份有限公司 | Stocking system with Lightweight Container node |
Citations (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5696895A (en) * | 1995-05-19 | 1997-12-09 | Compaq Computer Corporation | Fault tolerant multiple network servers |
US6269288B1 (en) * | 1994-01-14 | 2001-07-31 | Sun Microsystems, Inc. | Smart switch |
US6473865B1 (en) * | 1998-03-18 | 2002-10-29 | Kabushiki Kaisha Toshiba | Apparatus comprising clock control circuit, method of controlling clock signal and device using internal clock signal synchronized to external clock signal |
US6654896B1 (en) * | 2000-05-16 | 2003-11-25 | Hewlett-Packard Development Company, L.P. | Handling of multiple compliant and non-compliant wake-up sources in a computer system |
US6859882B2 (en) * | 1990-06-01 | 2005-02-22 | Amphus, Inc. | System, method, and architecture for dynamic server power management and dynamic workload management for multi-server environment |
TW200509593A (en) | 2003-08-29 | 2005-03-01 | Arima Computer Corp | Apparatus and method for wakeup on LAN |
US6968465B2 (en) * | 2002-06-24 | 2005-11-22 | Hewlett-Packard Development Company, L.P. | Multiple server in-rush current reduction |
US7069317B1 (en) * | 2001-02-28 | 2006-06-27 | Oracle International Corporation | System and method for providing out-of-band notification of service changes |
TW200709609A (en) | 2005-08-29 | 2007-03-01 | Wistron Corp | Computer network system and related method for monitoring a server |
US7352289B1 (en) * | 2003-09-11 | 2008-04-01 | Sun Microsystems, Inc. | System and method for detecting the connection state of a network cable connector |
US7380144B2 (en) * | 2004-03-30 | 2008-05-27 | Hewlett-Packard Development Company, L.P. | Enabling and disabling of powering-off of computer system |
TW200828887A (en) | 2006-10-30 | 2008-07-01 | Raytheon Co | System and method for networking computer clusters |
US20080183880A1 (en) | 2007-01-30 | 2008-07-31 | Toshimichi Sasage | Power control method and system |
US7472179B2 (en) * | 2003-11-14 | 2008-12-30 | Hitachi, Ltd. | System management method for a data center |
US7573832B2 (en) * | 2004-11-05 | 2009-08-11 | Cisco Technology, Inc. | Method and apparatus for conveying link state information in a network |
US7664991B1 (en) * | 2002-12-17 | 2010-02-16 | Symantec Operating Corporation | System and method for distributed file system I/O recovery |
US20110161695A1 (en) * | 2009-01-21 | 2011-06-30 | Hitachi, Ltd. | Power-saving network management server, network system, and method of determining supply of power |
US8212396B2 (en) * | 2008-10-24 | 2012-07-03 | Shih-Chien Chiou | Apparatus power restart method in response to network connection status |
US20120226918A1 (en) * | 2011-03-02 | 2012-09-06 | Rallo Aaron J | Non-intrusive Power Management |
US8271632B2 (en) * | 2005-12-01 | 2012-09-18 | Hitachi, Ltd. | Remote access providing computer system and method for managing same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6055237A (en) * | 1997-03-03 | 2000-04-25 | Excel Switching Corporation | Telecommunications switching system with readily configurable supervisory control |
US20040001433A1 (en) * | 2001-07-18 | 2004-01-01 | Gram Charles Andrew | Interactive control of network devices |
US7447927B2 (en) * | 2005-08-23 | 2008-11-04 | Apple Inc. | Method and apparatus for waking up a sleeping system |
-
2011
- 2011-10-05 TW TW100136173A patent/TWI463831B/en active
- 2011-10-18 CN CN2011103154169A patent/CN103036699A/en active Pending
-
2012
- 2012-04-18 US US13/449,630 patent/US8819469B2/en not_active Ceased
-
2015
- 2015-04-14 US US14/686,458 patent/USRE46520E1/en active Active
Patent Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6859882B2 (en) * | 1990-06-01 | 2005-02-22 | Amphus, Inc. | System, method, and architecture for dynamic server power management and dynamic workload management for multi-server environment |
US6269288B1 (en) * | 1994-01-14 | 2001-07-31 | Sun Microsystems, Inc. | Smart switch |
US5696895A (en) * | 1995-05-19 | 1997-12-09 | Compaq Computer Corporation | Fault tolerant multiple network servers |
US6473865B1 (en) * | 1998-03-18 | 2002-10-29 | Kabushiki Kaisha Toshiba | Apparatus comprising clock control circuit, method of controlling clock signal and device using internal clock signal synchronized to external clock signal |
US6654896B1 (en) * | 2000-05-16 | 2003-11-25 | Hewlett-Packard Development Company, L.P. | Handling of multiple compliant and non-compliant wake-up sources in a computer system |
US7069317B1 (en) * | 2001-02-28 | 2006-06-27 | Oracle International Corporation | System and method for providing out-of-band notification of service changes |
US6968465B2 (en) * | 2002-06-24 | 2005-11-22 | Hewlett-Packard Development Company, L.P. | Multiple server in-rush current reduction |
US7664991B1 (en) * | 2002-12-17 | 2010-02-16 | Symantec Operating Corporation | System and method for distributed file system I/O recovery |
TW200509593A (en) | 2003-08-29 | 2005-03-01 | Arima Computer Corp | Apparatus and method for wakeup on LAN |
US7352289B1 (en) * | 2003-09-11 | 2008-04-01 | Sun Microsystems, Inc. | System and method for detecting the connection state of a network cable connector |
US7472179B2 (en) * | 2003-11-14 | 2008-12-30 | Hitachi, Ltd. | System management method for a data center |
US7380144B2 (en) * | 2004-03-30 | 2008-05-27 | Hewlett-Packard Development Company, L.P. | Enabling and disabling of powering-off of computer system |
US7573832B2 (en) * | 2004-11-05 | 2009-08-11 | Cisco Technology, Inc. | Method and apparatus for conveying link state information in a network |
TW200709609A (en) | 2005-08-29 | 2007-03-01 | Wistron Corp | Computer network system and related method for monitoring a server |
US8271632B2 (en) * | 2005-12-01 | 2012-09-18 | Hitachi, Ltd. | Remote access providing computer system and method for managing same |
TW200828887A (en) | 2006-10-30 | 2008-07-01 | Raytheon Co | System and method for networking computer clusters |
US20080183880A1 (en) | 2007-01-30 | 2008-07-31 | Toshimichi Sasage | Power control method and system |
US8212396B2 (en) * | 2008-10-24 | 2012-07-03 | Shih-Chien Chiou | Apparatus power restart method in response to network connection status |
US20110161695A1 (en) * | 2009-01-21 | 2011-06-30 | Hitachi, Ltd. | Power-saving network management server, network system, and method of determining supply of power |
CN102144374A (en) | 2009-01-21 | 2011-08-03 | 株式会社日立制作所 | Power-saving network management server, network system, and method of determining supply of power |
US20120226918A1 (en) * | 2011-03-02 | 2012-09-06 | Rallo Aaron J | Non-intrusive Power Management |
Non-Patent Citations (4)
Title |
---|
First Office Action mailed on Jan. 12, 2015 in Chinese Application No. 201110315416.9. |
Second Office Action mailed on Aug. 4, 2015 in Chinese Application No. 201110315416.9. |
Summary of First Office Action mailed on Jan. 12, 2015 in Chinese Application No. 201110315416.9. |
Summary of Second Office Action mailed on Aug. 4, 2015 in Chinese Application No. 201110315416.9. |
Also Published As
Publication number | Publication date |
---|---|
TWI463831B (en) | 2014-12-01 |
US8819469B2 (en) | 2014-08-26 |
TW201316721A (en) | 2013-04-16 |
CN103036699A (en) | 2013-04-10 |
US20130091371A1 (en) | 2013-04-11 |
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