WO2013107169A1 - 一种独立磁盘冗余阵列raid控制器及系统 - Google Patents

一种独立磁盘冗余阵列raid控制器及系统 Download PDF

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Publication number
WO2013107169A1
WO2013107169A1 PCT/CN2012/078925 CN2012078925W WO2013107169A1 WO 2013107169 A1 WO2013107169 A1 WO 2013107169A1 CN 2012078925 W CN2012078925 W CN 2012078925W WO 2013107169 A1 WO2013107169 A1 WO 2013107169A1
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Prior art keywords
host
hard disk
interface
processing core
control pin
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PCT/CN2012/078925
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English (en)
French (fr)
Inventor
李延松
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华为技术有限公司
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Priority to US13/715,534 priority Critical patent/US8543763B2/en
Publication of WO2013107169A1 publication Critical patent/WO2013107169A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0625—Power saving in storage systems
    • 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
    • G06F1/325—Power saving in peripheral device
    • G06F1/3268—Power saving in hard disk drive
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
    • G06F3/0658—Controller construction arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0683—Plurality of storage devices
    • G06F3/0689—Disk arrays, e.g. RAID, JBOD
    • 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a redundant array RAID controller and system for independent disks. Background technique
  • the storage medium commonly used in Internet servers and storage arrays is a hard disk, such as a mechanical hard disk, but the mechanical hard disk has a high failure rate and low performance. Therefore, the mechanical hard disk often uses RAID (Redundant Array of Independent Disks). Redundant array) mode, that is, the host controls the read and write operations of multiple hard disks through the communication of the RAID controller.
  • RAID Redundant Array of Independent Disks
  • the full-load power consumption of all hard disks can account for more than 20% of the total power consumption of the entire server or disk array, while the power consumption of the hard disk sleeps is low, such as a 2.5-inch mechanical hard disk read of a certain model.
  • the write power is 3.5 watts - 4.6 watts, and the sleep power consumption is only 1 watt.
  • the host puts the hard disk into a sleep state when the service is idle, which can significantly reduce the power consumption of the single device and the room heat dissipation system.
  • the RAID controller periodically scans the hard disk and performs some fault detection operations, for example, 3 minutes apart. This makes the hard disk wake up abnormally shortly after entering the sleep state even when the service is idle, which reduces energy saving. effect.
  • An aspect of the present invention provides a redundant array RAID controller for an independent disk, including: a host interface, a processing core, and a storage interface;
  • the processing core is connected to the host through the host interface, and configured to communicate with the host through the host interface;
  • the processing core is connected to the at least one hard disk through the storage interface, and configured to communicate with the at least one hard disk through the storage interface;
  • the RAID controller includes a suspend control pin, the suspend control pin is coupled to a control signal in the host and the processing core; and when the suspend control pin is at a first level, Processing the kernel to suspend program execution, when the pause control pin is at a second level, for causing the processing core to resume program execution from a previously suspended location; the processing core is configured to: when the hard disk is in a sleep state Receiving a first level sent by the host to the pause control pin by using the control signal, suspending operation of a program in the processing core according to a first level received by the pause control pin, thereby Suspending access to the hard disk;
  • the processing core is further configured to: when the host receives a service request, receive a second level that is sent by the host to the pause control pin by using the control signal, and receive according to the pause control pin Execution of the second level recovery procedure;
  • the processing core is further configured to: receive, by the host interface, a service request sent by the host, and send a received service request to the hard disk by using the storage interface, thereby waking up the hard disk and performing a service request Operation.
  • Another aspect of the present invention provides a control system including a host, a redundant array of independent disks, a RAID controller, and at least one hard disk;
  • the RAID controller includes a host interface, a processing core, and a storage interface;
  • the processing core is connected to the host through the host interface, and configured to communicate with the host through the host interface;
  • the processing core is connected to the at least one hard disk through the storage interface, and configured to communicate with the at least one hard disk through the storage interface;
  • the RAID controller includes a suspend control pin, the suspend control pin is coupled to a control signal in the host and the processing core; and when the suspend control pin is at a first level, Processing the kernel to suspend program execution, when the pause control pin is at a second level, for causing the processing core to resume program execution from a previously suspended location; the processing core is configured to: when the hard disk is in a sleep state Receiving a first level sent by the host to the pause control pin by using the control signal, suspending operation of a program in the processing core according to a first level received by the pause control pin, thereby Suspending access to the hard disk;
  • the processing core is further configured to: when the host receives a service request, receive a second level that is sent by the host to the pause control pin by using the control signal, and receive according to the pause control pin Execution of the second level recovery procedure;
  • the processing core is further configured to receive, by using the host interface, a service request sent by the host, and by using the The storage interface sends the received service request to the hard disk, thereby waking up the hard disk and performing an operation corresponding to the service request.
  • the suspend control pin of the RAID controller is connected to the control signal and the processing core in the host, and when the hard disk is in the sleep state, the processing core receives the host to send by using the control signal.
  • the processing core Up to a first level of the suspend control pin, suspending operation of a program in the processing core according to a first level received by the suspend control pin, thereby suspending access to the hard disk,
  • the hard disk is maintained in a sleep state without being awakened by an abnormality, and the energy saving effect is improved compared with the prior art.
  • FIG. 1 is a schematic diagram of an embodiment of a redundant array RAID controller for an independent disk according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of an embodiment of a control system according to Embodiment 3 of the present invention. detailed description
  • Embodiments of the present invention provide a redundant array RAID controller and system for independent disks.
  • FIG. 1 is a schematic diagram of an embodiment of a redundant array RAID controller for an independent disk according to Embodiment 1 of the present invention
  • the processing core is connected to the host through the host interface, and configured to communicate with the host through the host interface;
  • the processing core is connected to the at least one hard disk through the storage interface, and configured to communicate with the at least one hard disk through the storage interface;
  • the RAID controller includes a pause control pin 14, the pause control pin is connected to a control signal in the host and the processing core; when the pause control pin is at a first level, The processing core suspends program execution, and when the pause control pin is at a second level, is used to cause the processing core to resume from a previously suspended location Execution
  • the processing core is configured to receive, when the hard disk is in a sleep state, receive a first level sent by the host to the pause control pin by using the control signal, according to the first received by the pause control pin Leveling the operation of the program in the processing kernel to suspend access to the hard disk;
  • the processing core is further configured to: when the host receives a service request, receive a second level that is sent by the host to the pause control pin by using the control signal, and receive according to the pause control pin Execution of the second level recovery procedure;
  • the processing core is further configured to: receive, by the host interface, a service request sent by the host, and send a received service request to the hard disk by using the storage interface, thereby waking up the hard disk and performing a service request Operation.
  • the suspend control pin of the RAID controller is connected to the control signal and the processing core in the host.
  • the processing core receives the host to send the pause control through the control signal.
  • a first level of the pin suspending operation of the program in the processing core according to the first level received by the suspend control pin, thereby suspending access to the hard disk, maintaining the hard disk in a sleep state , without being awakened by an abnormality, compared with the prior art, the energy saving effect is improved.
  • the RAID controller in this embodiment may be located in a circuit system designed by the user according to the RAID controller chip. Specifically, the user designs the circuit after purchasing the RAID controller chip, and then the BIOS provided by the manufacturer (Basic) The Input Output System, the application programming interface, and the self-developed application are combined to form a complete circuit system; alternatively, the RAID controller in this embodiment can be located on a RAID controller card purchased directly from the manufacturer. The application is then developed based on the application programming interface provided by the manufacturer.
  • the RAID controller includes: a host interface, a processing core, and a storage interface;
  • the processing core is connected to the host through the host interface, and is configured to communicate with the host through the host interface.
  • the host interface is a PCIE (Peripheral Component Interconnect Express) Interface
  • the processing core is connected to the at least one mechanical hard disk through the storage interface, and is configured to communicate with the at least one mechanical hard disk through the storage interface.
  • the storage interface is SAS (Serial Attached SCSI (Small Computer System) Interface, small computer system interface), serial connection SCSI interface, or STAT (Serial Advanced Technology Attachment) interface;
  • the RAID controller includes a suspend control pin, the suspend control pin is coupled to a control signal in the host and the processing core; and when the suspend control pin is at a first level, Processing the kernel to suspend program execution, when the suspend control pin is at a second level, for causing the processing core to resume program execution from where it was previously suspended;
  • the suspend control pin includes: suspending the halt pin Or stop the clock stpclk pin (the signal pin type is different depending on the chip type), but it is not limited to this, as long as the RAID controller suspends operation when the suspend control pin is valid, it can be fast when the suspend control pin is invalid.
  • the suspend control pins that respond
  • the processing core is configured to receive, when the hard disk is in a sleep state, receive a first level sent by the host to the pause control pin by using the control signal, according to the first received by the pause control pin Leveling the operation of the program in the processing kernel to suspend access to the mechanical hard disk;
  • the host first sets the mechanical hard disk to a sleep state. Specifically, the host sends a standby (standby) command in the ATA (Advanced Technology Attachment) command set to the RAID controller, where the RAID controller will The standby command is sent to the mechanical hard disk to put the mechanical hard disk into a sleep state.
  • the mechanical hard disk is in the standby state, the motor of the hard disk stops and the head is unloaded, but its interface circuit is still active and can be woken up at any time after receiving the ATA command.
  • the host determines whether the mechanical hard disk is in a sleep state.
  • the host can also confirm whether the mechanical hard disk is in a sleep state for more precise purposes. Specifically, the host sends a check power mode in the ATA command set. Mode) command information to the RAID controller; the RAID controller sends the check power mode command information to the mechanical hard disk; the mechanical hard disk receives the check power mode command, according to the check power mode command Generating a response value to the RAID controller; the RAID controller sends the response value to the host, and the host determines, according to the response value, whether the mechanical hard disk is in a dormant state, specifically, The response value is 0x00, indicating that the mechanical hard disk is in a sleep state, and when the response value is not 0x00, indicating that the mechanical hard disk is not in a sleep state, the host is required to send a standby command to the mechanical hard disk, so that the The mechanical hard disk is in a sleep state.
  • the response value is 0x00, indicating that the mechanical hard disk is in a sleep state, and when the response value is
  • the response value may also be 0x80, OxFF, and 0x40.
  • the response value When the response value is 0x80, the mechanical hard disk is in an idle state, and when the response value is OxFF, the mechanical hard disk is in an active state or an idle state, when the response value is 0x40.
  • the host When the mechanical hard disk is in a sleep state, the host sends a first level to a pause control pin of the RAID controller by a control signal, and the RAID controller receives a first level according to a pause control pin. Pause the process The operation of the program in the kernel, thereby suspending access to the hard disk.
  • the processing core of the RAID controller mostly adopts the PowerPC series.
  • the processing core provides a dedicated debugging interface, that is, a halt pin, which can externally connect the debugger and control the software. Execution of the code, in this embodiment, the halt pin is connected to the control signal in the host and the processing core.
  • the processing core When the halt pin is active, that is, when the halt pin is at the first level, the processing core enters a "debug pause state", and the processing core temporarily stops fetching and executing instructions, but the processing core clock is still running. Corresponding to the processing kernel being frozen; when the halt bow is invalid, that is, when the halt bow is at the second level, the processing core continues to run from where it was previously suspended, restoring fetching instructions and executing instructions.
  • This embodiment can utilize this feature of the halt pin to avoid abnormal wake-up when the mechanical hard disk is in a sleep state, and to ensure a fast response when the service arrives.
  • the processing core of the RAID controller can provide a stpclk pin, for example, the x86 processor can provide a stpclk pin
  • the RAID controller in this embodiment can also control the stpclk pin and the host and the control signal.
  • the processing core is connected, and the RAID controller may suspend operation of the program in the processing core according to a first level received by the stpclk pin, suspend operation, and maintain the mechanical hard disk in a sleep state.
  • the stpclk pin is a pause clock pin, which is mainly used to reduce power consumption and achieve energy saving or over temperature protection.
  • the processing core will stop at the next instruction, clear the internal pipeline and write buffer, then close the internal clock, and finally enter the stop grant state;
  • the processing core returns to the normal working state, and the instruction fetch and the execution instruction are resumed. Therefore, this embodiment can utilize the feature of the stpclk bow I to suspend the operation of the RAID controller, avoid abnormal wake-up when the mechanical hard disk is in the sleep state, and ensure fast response when the service arrives.
  • the host interface of the RAID controller still works normally, that is, the host can still detect the existence of the RAID controller, thus avoiding the adverse effect on the host software.
  • the processing core is further configured to: when the host receives a service request, receive a second level that is sent by the host to the pause control pin by using the control signal, and receive according to the pause control pin Execution of the second level recovery procedure;
  • the processing core is further configured to: receive, by the host interface, a service request sent by the host, and send a received service request to the hard disk by using the storage interface, thereby waking up the hard disk and performing a service request Operation.
  • the host when the service comes, the host requests to access the mechanical hard disk, the host sends a second level to the pause control pin of the RAID controller by using the control signal; the RAID controller According to the suspension Control pin receives the execution of the second level recovery procedure.
  • the processing core receives, by using the host interface, a hard disk access request sent by the host to be converted into a read/write operation that can be recognized by the mechanical hard disk, that is, an ATA command, and sends the ATA command to the storage interface through the storage interface.
  • the hard disk wakes up the mechanical hard disk in a sleep state; wherein the process of waking up is transparent to the host, and the host does not need to care about how the hard disk is awakened.
  • the hard disk without changing the RAID controller software (including the application programming interface and the BIOS), the hard disk can be prevented from being abnormally awakened after entering the sleep state, thereby ensuring the energy saving effect.
  • the hard disk in this embodiment is not limited to a mechanical hard disk, and may be another hard disk such as a solid state hard disk.
  • a solid state drive is a hard disk made of a flash memory chip. It does not have a rotating disk and a magnetic head like a mechanical hard disk, so reliability, performance, power consumption, and environmental adaptability are better, but the cost is high. It also supports the ATA command set, including commands to check power status and enter standby, and this distinction between it and the mechanical hard disk is transparent to the host.
  • the user may request the manufacturer to reserve the halt pin or the stpclk pin of the RAID controller from a connector on the RAID controller card.
  • the pin is led out, and the user connects it to the host part to implement the host to control the suspend operation and resume operation of the RAID controller through the halt signal or the stpclk signal.
  • the suspend control pin of the RAID controller is connected to the control signal and the processing core in the host.
  • the processing core receives the host to send the pause control through the control signal.
  • a first level of the pin suspending operation of the program in the processing core according to the first level received by the suspend control pin, thereby suspending access to the hard disk, maintaining the hard disk in a sleep state
  • the RAID controller periodically scans the hard disk and performs some fault detection operations during the running process, so that the hard disk is abnormally awakened, so compared with the prior art. In other words, the embodiment improves the energy saving effect.
  • the embodiment does not rely on the manufacturer to modify the software, and the workload is small and the cost is low; the hard disk can exit the sleep state in time and respond to the service access in time.
  • Example 3
  • FIG. 2 is a schematic structural diagram of an embodiment of a control system according to Embodiment 3 of the present invention.
  • the control system includes: a host 10, a RAID controller 20, and a hard disk 30.
  • the RAID controller 20 includes a host interface, a processing core, and a storage interface.
  • the processing core is connected to the host 10 through the host interface, and configured to communicate with the host 10 through the host interface;
  • the processing core is connected to the at least one hard disk 30 through the storage interface, and configured to communicate with the at least one hard disk 30 through the storage interface;
  • the RAID controller 20 includes a pause control pin, and the pause control pin is connected to a control signal in the host 10 and the processing core; when the pause control pin is at a first level, The processing core suspends program execution, and when the pause control pin is at a second level, is used to cause the processing core to resume program execution from a previously suspended location;
  • the processing core is configured to receive, when the hard disk 30 is in a sleep state, receive a first level sent by the host 10 to the pause control pin by using the control signal, and receive according to the pause control pin.
  • the first level suspends operation of the program in the processing kernel, thereby suspending access to the hard disk 30;
  • the processing core is further configured to: when the host 10 receives a service request, receive a second level that is sent by the host 10 to the pause control pin by using the control signal, according to the pause control pin. Execution of the received second level recovery procedure;
  • the processing core is further configured to receive a service request sent by the host 10 by using the host interface, and send a received service request to the hard disk 30 through the storage interface, thereby waking up the hard disk 30 and executing The operation corresponding to the business request.
  • the host interface of the RAID controller is an external device interconnecting a fast channel PCIE interface;
  • the storage interface of the RAID controller is a serial connection small computer system interface SAS interface, or a serial advanced technology attachment STAT interface.
  • the suspend control pin of the RAID controller includes: a halt halt pin or a stop clock stpclk pin.
  • the hard disk in this embodiment includes a mechanical hard disk or a solid state hard disk.
  • the suspend control pin of the RAID controller is connected to the control signal and the processing core in the host.
  • the processing core receives the host to send the pause control through the control signal.
  • a first level of the pin suspending operation of the program in the processing core according to the first level received by the suspend control pin, thereby suspending access to the hard disk, maintaining the hard disk in a sleep state , without being awakened by an abnormality, compared with the prior art, the energy saving effect is improved, and the service life of the hard disk is prolonged.
  • the embodiment does not rely on the manufacturer to modify the software, and the workload is small and the cost is low; the hard disk can exit the sleep state in time and respond to the service access in time.
  • the device type embodiment since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points are referred to A partial description of the method embodiment is sufficient.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明公开了一种独立磁盘冗余阵列RAID控制器及系统，属于通信技术领域。所述RAID控制器包括：主机接口、处理内核以及存储接口；RAID控制器包括暂停控制引脚，暂停控制引脚与主机中的控制信号及处理内核相连；当暂停控制引脚为第一电平时，用于使处理内核暂停程序执行，当暂停控制引脚为第二电平时，用于使处理内核从先前暂停的地方恢复程序执行；处理内核用于，当硬盘处于休眠状态时，接收主机通过控制信号发送到暂停控制引脚的第一电平，根据暂停控制引脚收到的第一电平暂停处理内核中的程序的运行，从而暂停对硬盘的访问。本发明提高了节能效果。

Description

说 明 书 一种独立磁盘冗余阵列 RAID控制器及系统
本申请要求于 2012年 1月 20日提交中国专利局、 申请号为 201210018858. 1、 发明名 称为 "一种独立磁盘冗余阵列 RAID控制器及系统" 的中国专利申请的优先权， 其全部内容 通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域， 特别涉及一种独立磁盘冗余阵列 RAID控制器及系统。 背景技术
随着互联网业务的快速发展， 网络承载、 处理和存储的数据量也在呈指数规律增长， 对存储系统的容量、 性能、 可用性提出了越来越高的要求。 在互联网服务器和存储阵列中 常用的存储介质是硬盘， 例如机械硬盘， 但是机械硬盘的故障率较高， 性能较低， 因此机 械硬盘在实际应用时常常采用 RAID (Redundant Array of Independent Disks, 独立磁盘冗余 阵列） 模式， 即主机通过 RAID控制器的通信来控制多个硬盘的读写操作。
由于硬盘的数量较多， 所有硬盘的满负荷功耗可以占到整个服务器或磁盘阵列总功耗 的 20%以上， 而硬盘休眠时的功耗较低， 例如某种型号的 2.5寸机械硬盘读写功耗为 3.5瓦 特 -4.6瓦特， 休眠功耗仅为 1瓦特。 现有技术中， 在业务空闲时主机将硬盘置于休眠状态， 这样可以显著降低单台设备及机房散热系统的功耗。
但是 RAID控制器在运行过程中会定期扫描硬盘并执行一些故障检测操作，例如间隔 3 分钟， 这样就使得即使在业务空闲时， 硬盘也会在进入休眠状态后不久就被异常唤醒， 降 低了节能效果。 发明内容
为了提高节能效果， 本发明各方面提供了一种独立磁盘冗余阵列 RAID控制器及系统。 所述技术方案如下：
本发明的一方面提供一种独立磁盘冗余阵列 RAID控制器， 包括： 主机接口、处理内核 以及存储接口；
所述处理内核通过所述主机接口与主机相连， 用于通过所述主机接口与所述主机进行 通信； 所述处理内核通过所述存储接口与至少一个硬盘相连， 用于通过所述存储接口与所述 至少一个硬盘进行通信；
所述 RAID控制器包括暂停控制引脚，所述暂停控制引脚与所述主机中的控制信号及所 述处理内核相连； 当所述暂停控制引脚为第一电平时， 用于使所述处理内核暂停程序执行， 当所述暂停控制引脚为第二电平时， 用于使所述处理内核从先前暂停的地方恢复程序执行; 所述处理内核用于， 当所述硬盘处于休眠状态时， 接收所述主机通过所述控制信号发 送到所述暂停控制引脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理 内核中的程序的运行， 从而暂停对所述硬盘的访问；
所述处理内核还用于， 当所述主机收到业务请求时， 接收所述主机通过所述控制信号 发送到所述暂停控制引脚的第二电平， 根据所述暂停控制引脚收到的第二电平恢复程序的 执行；
所述处理内核还用于， 通过所述主机接口接收所述主机发送的业务请求， 并通过所述 存储接口向所述硬盘发送接收到的业务请求， 从而唤醒所述硬盘并执行与业务请求对应的 操作。
本发明的另一方面提供一种控制系统，包括主机、独立磁盘冗余阵列 RAID控制器和至 少一个硬盘；
所述 RAID控制器包括主机接口、 处理内核以及存储接口；
所述处理内核通过所述主机接口与所述主机相连， 用于通过所述主机接口与所述主机 进行通信；
所述处理内核通过所述存储接口与所述至少一个硬盘相连， 用于通过所述存储接口与 所述至少一个硬盘进行通信；
所述 RAID控制器包括暂停控制引脚，所述暂停控制引脚与所述主机中的控制信号及所 述处理内核相连； 当所述暂停控制引脚为第一电平时， 用于使所述处理内核暂停程序执行， 当所述暂停控制引脚为第二电平时， 用于使所述处理内核从先前暂停的地方恢复程序执行; 所述处理内核用于， 当所述硬盘处于休眠状态时， 接收所述主机通过所述控制信号发 送到所述暂停控制引脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理 内核中的程序的运行， 从而暂停对所述硬盘的访问；
所述处理内核还用于， 当所述主机收到业务请求时， 接收所述主机通过所述控制信号 发送到所述暂停控制引脚的第二电平， 根据所述暂停控制引脚收到的第二电平恢复程序的 执行；
所述处理内核还用于， 通过所述主机接口接收所述主机发送的业务请求， 并通过所述 存储接口向所述硬盘发送接收到的业务请求， 从而唤醒所述硬盘并执行与业务请求对应的 操作。
本发明各方面提供的技术方案中， RAID控制器的暂停控制引脚与主机中的控制信号及 处理内核相连， 当硬盘处于休眠状态时， 所述处理内核接收所述主机通过所述控制信号发 送到所述暂停控制引脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理 内核中的程序的运行， 从而暂停对所述硬盘的访问， 使所述硬盘维持在休眠状态， 而不被 异常唤醒， 相比较现有技术而言， 提高了节能效果。 附图说明
为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例描述中所需要使用的 附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一些实施例， 对于本 领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的 附图。
图 1是本发明实施例 1提供的一种独立磁盘冗余阵列 RAID控制器实施例的示意图； 图 2是本发明实施例 3提供的一种控制系统实施例的结构示意图。 具体实施方式
本发明实施例提供一种独立磁盘冗余阵列 RAID控制器及系统。
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明实施方式作 进一步地详细描述。
实施例 1
参考图 1， 图 1是本发明实施例 1提供的一种独立磁盘冗余阵列 RAID控制器实施例的 示意图； 所述独立磁盘冗余阵列 RAID控制器 100包括：
主机接口 11、 处理内核 12以及存储接口 13;
所述处理内核通过所述主机接口与主机相连， 用于通过所述主机接口与所述主机进行 通信；
所述处理内核通过所述存储接口与至少一个硬盘相连， 用于通过所述存储接口与所述 至少一个硬盘进行通信；
所述 RAID控制器包括暂停控制引脚 14， 所述暂停控制引脚与所述主机中的控制信号 及所述处理内核相连； 当所述暂停控制引脚为第一电平时， 用于使所述处理内核暂停程序 执行， 当所述暂停控制引脚为第二电平时， 用于使所述处理内核从先前暂停的地方恢复程 序执行；
所述处理内核用于， 当所述硬盘处于休眠状态时， 接收所述主机通过所述控制信号发 送到所述暂停控制引脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理 内核中的程序的运行， 从而暂停对所述硬盘的访问；
所述处理内核还用于， 当所述主机收到业务请求时， 接收所述主机通过所述控制信号 发送到所述暂停控制引脚的第二电平， 根据所述暂停控制引脚收到的第二电平恢复程序的 执行；
所述处理内核还用于， 通过所述主机接口接收所述主机发送的业务请求， 并通过所述 存储接口向所述硬盘发送接收到的业务请求， 从而唤醒所述硬盘并执行与业务请求对应的 操作。
本实施例中， RAID控制器的暂停控制引脚与主机中的控制信号及处理内核相连， 当硬 盘处于休眠状态时， 所述处理内核接收所述主机通过所述控制信号发送到所述暂停控制引 脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理内核中的程序的运行， 从而暂停对所述硬盘的访问， 使所述硬盘维持在休眠状态， 而不被异常唤醒， 相比较现有 技术而言， 提高了节能效果。 实施例 2
参考图 1，本实施例中的 RAID控制器可以位于用户根据 RAID控制器芯片自行设计的 电路系统中，具体地，用户在购买 RAID控制器芯片后自己设计电路，再将厂家提供的 BIOS (Basic Input Output System, 基本输入输出系统）、 应用编程接口和自行开发的应用程序结 合起来组成一个完整的电路系统；或者，本实施例中的 RAID控制器可以位于直接从厂家购 买的 RAID控制卡上， 然后基于厂家提供的应用编程接口开发应用程序。
为使本领域技术人员更清楚地了解本实施例， 下面以机械硬盘为例进行详细描述， 具 体地， 所述 RAID控制器包括： 主机接口、 处理内核以及存储接口；
所述处理内核通过所述主机接口与主机相连， 用于通过所述主机接口与所述主机进行 通信； 优选的， 所述主机接口为 PCIE (Peripheral Component Interconnect Express, 夕卜部设 备互连快速通道） 接口；
所述处理内核通过所述存储接口与至少一个机械硬盘相连， 用于通过所述存储接口与 所述至少一个机械硬盘进行通信； 优选的， 所述存储接口为 SAS(Serial Attached SCSI(Small Computer System Interface, 小型计算机系统接口）,串行连接 SCSI)接口， 或者 STAT ( Serial Advanced Technology Attachment, 串行先进技术附件） 接口； 所述 RAID控制器包括暂停控制引脚，所述暂停控制引脚与所述主机中的控制信号及所 述处理内核相连； 当所述暂停控制引脚为第一电平时， 用于使所述处理内核暂停程序执行， 当所述暂停控制引脚为第二电平时， 用于使所述处理内核从先前暂停的地方恢复程序执行； 优选的，所述暂停控制引脚包括：暂停 halt引脚或停止时钟 stpclk引脚（根据芯片类型不同， 信号引脚类型也不同）， 但并不局限于此， 只要 RAID控制器在暂停控制引脚有效时暂停运 行， 在暂停控制引脚无效时能快速响应且恢复运行的暂停控制引脚都在本发明实施例的保 护范围之内。
所述处理内核用于， 当所述硬盘处于休眠状态时， 接收所述主机通过所述控制信号发 送到所述暂停控制引脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理 内核中的程序的运行， 从而暂停对所述机械硬盘的访问；
本实施例中， 主机首先将机械硬盘设置为休眠状态， 具体地， 主机发送 ATA (Advanced Technology Attachment, 先进技术附件） 命令集中的 standby (待机） 命令至 RAID控制器， 所述 RAID控制器将所述 standby命令发送至机械硬盘， 使所述机械硬盘进入休眠状态。 所 述机械硬盘在 standby状态时， 硬盘的电机停转， 磁头卸载， 但是它的接口电路仍处于活动 状态， 可以随时在接收 ATA命令后被唤醒。
主机再判断所述机械硬盘是否处于休眠状态。
实际应用中， 主机在将所述机械硬盘设置为休眠状态后， 为了更加精确， 主机还可以 再次确认所述机械硬盘是否处于休眠状态， 具体为： 主机发送 ATA命令集中的 check power mode (检查电源模式）命令信息至所述 RAID控制器；所述 RAID控制器将所述 check power mode命令信息发送至所述机械硬盘； 所述机械硬盘接收所述 check power mode命令， 根据 所述 check power mode命令生成响应值发送至所述 RAID控制器；所述 RAID控制器将所述 响应值发送至所述主机， 所述主机根据所述响应值判断所述机械硬盘是否处于休眠状态， 具体为，当所述响应值为 0x00时表示所述机械硬盘正处于休眠状态，当所述响应值不是 0x00 时表示所述机械硬盘没有处于休眠状态， 需要所述主机发送 standby命令至所述机械硬盘， 使所述机械硬盘处于休眠状态。
其中， 所述响应值还可以为 0x80、 OxFF和 0x40， 当响应值为 0x80时表示机械硬盘处 于空闲状态， 当响应值为 OxFF时表示机械硬盘处于活动状态或空闲状态， 当响应值为 0x40 时表示电机正在停转过程中， 即机械硬盘正在进入休眠状态； 因此当响应值为 0x80、 OxFF 和 0x40时均表示机械硬盘没有处于休眠状态。
当所述机械硬盘处于休眠状态时， 所述主机通过控制信号发送第一电平至所述 RAID 控制器的暂停控制引脚，所述 RAID控制器根据暂停控制引脚收到的第一电平暂停所述处理 内核中的程序的运行， 从而暂停对所述硬盘的访问。
实际应用中， 所述 RAID控制器的处理内核多数采用 PowerPC系列， 对于此系列的处 理内核而言， 所述处理内核提供了一个专用的调试接口， 即 halt 引脚， 可以外接调试器并 控制软件代码的执行， 本实施例中， 将 halt 引脚与所述主机中的控制信号及所述处理内核 相连。
当所述 halt引脚有效时， 即所述 halt引脚为第一电平时， 所述处理内核进入 "调试暂 停状态"， 处理内核暂时停止取指令和执行指令， 但是处理内核的时钟还在运行， 相当于处 理内核被冻结了； 当所述 halt弓 无效时， 即所述 halt弓 为第二电平时， 所述处理内核 从此前暂停的地方继续运行， 恢复取指令和执行指令。 本实施例可以利用 halt 引脚的这个 特性来避免当机械硬盘处于休眠状态时被异常唤醒， 且能够保证在业务到来时又能快速响 应。
如果所述 RAID控制器的处理内核可以提供 stpclk引脚，例如 x86处理器可以提供 stpclk 引脚，本实施例中所述 RAID控制器也可以将 stpclk引脚与所述主机的控制信号及所述处理 内核相连，所述 RAID控制器可以根据 stpclk引脚收到的第一电平暂停所述处理内核中的程 序的运行， 暂停运行， 使所述机械硬盘维持在休眠状态。
其中所述 stpclk引脚为暂停时钟引脚， 主要用于降低功耗， 实现节能或过温保护的。 当 所述 stpclk引脚有效时， 如果没有其他外部中断， 处理内核就会停在下一条指令处， 同时清 除内部流水线和写缓冲区， 然后关闭内部时钟， 最后进入 stop grant (停止授权)状态； 当所述 stpclk引脚无效时， 处理内核恢复到正常工作状态， 恢复取指令和执行指令。 因此本实施例 可以利用 stpclk弓 I脚的这个特性来使 RAID控制器暂停运行，避免当机械硬盘处于休眠状态 时被异常唤醒， 且能够保证在业务到来时又能快速响应。
当处理内核暂停运行时， RAID控制器的主机接口仍然正常工作， 也就是说所述主机仍 然能检测到所述 RAID控制器的存在， 这样就避免了对主机软件的不利影响。
所述处理内核还用于， 当所述主机收到业务请求时， 接收所述主机通过所述控制信号 发送到所述暂停控制引脚的第二电平， 根据所述暂停控制引脚收到的第二电平恢复程序的 执行；
所述处理内核还用于， 通过所述主机接口接收所述主机发送的业务请求， 并通过所述 存储接口向所述硬盘发送接收到的业务请求， 从而唤醒所述硬盘并执行与业务请求对应的 操作。
本实施例中， 当业务到来， 所述主机请求访问所述机械硬盘时， 所述主机通过所述控 制信号发送第二电平至所述 RAID控制器的暂停控制引脚；所述 RAID控制器根据所述暂停 控制引脚收到的第二电平恢复程序的执行。 进一步地， 所述处理内核通过所述主机接口接 收所述主机发送的硬盘访问请求转换为所述机械硬盘能够识别的读写操作， 即 ATA命令， 通过所述存储接口将所述 ATA命令发送至所述硬盘， 将处于休眠状态中的机械硬盘唤醒； 其中这个唤醒的过程对于所述主机而言是透明的， 所述主机不需要关心硬盘是如何被唤醒 的。
本实施例在不改动 RAID控制器软件 （包括应用编程接口和 BIOS ) 的前提下， 就可以 使硬盘进入休眠状态后不会被异常唤醒， 保证了节能效果。
本实施例中的硬盘不局限于机械硬盘， 也可以为固态硬盘等其他硬盘。 固态硬盘是用 闪存芯片做的硬盘， 没有机械硬盘那样的旋转盘片和磁头， 因此可靠性、 性能、 功耗、 环 境适应性更好， 但成本很高。 它同样支持 ATA命令集， 包括检查电源状态和进入待机状态 等命令， 它与机械硬盘之间的这种区别对主机来说是透明的。
本实施例中， 当所述 RAID控制器位于直接从厂家购买的 RAID控制卡上时，用户可以 要求厂家将 RAID控制器的 halt管脚或 stpclk管脚从 RAID控制卡上连接器的某个保留管脚 处引出来， 由用户将其与主机部分相连来实现主机通过 halt信号或 stpclk信号来控制 RAID 控制器的暂停运行和恢复运行操作。 这种方式虽然需要厂家参与修改设计， 但是相对于修 改软件来说风险和工作量都很小， 厂家更容易接受。
本实施例中， RAID控制器的暂停控制引脚与主机中的控制信号及处理内核相连， 当硬 盘处于休眠状态时， 所述处理内核接收所述主机通过所述控制信号发送到所述暂停控制引 脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理内核中的程序的运行， 从而暂停对所述硬盘的访问， 使所述硬盘维持在休眠状态， 而不被异常唤醒； 而现有技术 中当硬盘处于休眠状态时， RAID控制器在运行过程中会定期扫描硬盘并执行一些故障检测 操作， 使得硬盘被异常唤醒， 因此相比较现有技术而言， 本实施例提高了节能效果。
此外， 本实施例不依赖于厂商修改软件， 工作量小， 成本低； 硬盘能够及时退出休眠 状态， 及时响应业务的访问。 实施例 3
参考图 2， 图 2是本发明实施例 3提供的一种控制系统实施例的结构示意图， 所述控制 系统包括： 主机 10、 RAID控制器 20和硬盘 30。
所述 RAID控制器 20包括主机接口、 处理内核以及存储接口；
所述处理内核通过所述主机接口与所述主机 10相连， 用于通过所述主机接口与所述主 机 10进行通信； 所述处理内核通过所述存储接口与所述至少一个硬盘 30相连， 用于通过所述存储接口 与所述至少一个硬盘 30进行通信；
所述 RAID控制器 20包括暂停控制引脚，所述暂停控制引脚与所述主机 10中的控制信 号及所述处理内核相连； 当所述暂停控制引脚为第一电平时， 用于使所述处理内核暂停程 序执行， 当所述暂停控制引脚为第二电平时， 用于使所述处理内核从先前暂停的地方恢复 程序执行；
所述处理内核用于， 当所述硬盘 30处于休眠状态时， 接收所述主机 10通过所述控制 信号发送到所述暂停控制引脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所 述处理内核中的程序的运行， 从而暂停对所述硬盘 30的访问；
所述处理内核还用于， 当所述主机 10收到业务请求时， 接收所述主机 10通过所述控 制信号发送到所述暂停控制引脚的第二电平， 根据所述暂停控制引脚收到的第二电平恢复 程序的执行；
所述处理内核还用于， 通过所述主机接口接收所述主机 10发送的业务请求， 并通过所 述存储接口向所述硬盘 30发送接收到的业务请求， 从而唤醒所述硬盘 30并执行与业务请 求对应的操作。
优选的， 所述 RAID控制器的主机接口为外部设备互连快速通道 PCIE接口； 所述 RAID控制器的存储接口为串行连接小型计算机系统接口 SAS接口， 或者串行先 进技术附件 STAT接口。
优选的，所述 RAID控制器的暂停控制引脚包括：暂停 halt引脚或停止时钟 stpclk引脚。 本实施例中的硬盘包括机械硬盘或固态硬盘。
本实施例中， RAID控制器的暂停控制引脚与主机中的控制信号及处理内核相连， 当硬 盘处于休眠状态时， 所述处理内核接收所述主机通过所述控制信号发送到所述暂停控制引 脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理内核中的程序的运行， 从而暂停对所述硬盘的访问， 使所述硬盘维持在休眠状态， 而不被异常唤醒， 相比较现有 技术而言， 提高了节能效果， 延长了硬盘的使用寿命。
此外， 本实施例不依赖于厂商修改软件， 工作量小， 成本低； 硬盘能够及时退出休眠 状态， 及时响应业务的访问。 需要说明的是， 本说明书中的各个实施例均采用递进的方式描述， 每个实施例重点说 明的都是与其他实施例的不同之处， 各个实施例之间相同相似的部分互相参见即可。 对于 装置类实施例而言， 由于其与方法实施例基本相似， 所以描述的比较简单， 相关之处参见 方法实施例的部分说明即可。
需要说明的是， 在本文中， 诸如第一和第二等之类的关系术语仅仅用来将一个实体或 者操作与另一个实体或操作区分开来， 而不一定要求或者暗示这些实体或操作之间存在任 何这种实际的关系或者顺序。 而且， 术语 "包括"、 "包含"或者其任何其他变体意在涵盖 非排他性的包含， 从而使得包括一系列要素的过程、 方法、 物品或者设备不仅包括那些要 素， 而且还包括没有明确列出的其他要素， 或者是还包括为这种过程、 方法、 物品或者设 备所固有的要素。 在没有更多限制的情况下， 由语句 "包括一个…… " 限定的要素， 并不 排除在包括所述要素的过程、 方法、 物品或者设备中还存在另外的相同要素。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完 成， 也可以通过程序来指令相关的硬件完成， 所述的程序可以存储于一种计算机可读存储 介质中， 上述提到的存储介质可以是只读存储器， 磁盘或光盘等。
以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明的精神和原则 之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1、 一种独立磁盘冗余阵列 RAID控制器， 其特征在于， 包括： 主机接口、 处理内核以及 存储接口；
所述处理内核通过所述主机接口与主机相连， 用于通过所述主机接口与所述主机进行通 信；
所述处理内核通过所述存储接口与至少一个硬盘相连， 用于通过所述存储接口与所述至 少一个硬盘进行通信；
所述 RAID控制器包括暂停控制引脚， 所述暂停控制引脚与所述主机中的控制信号及所 述处理内核相连； 当所述暂停控制引脚为第一电平时， 用于使所述处理内核暂停程序执行， 当所述暂停控制引脚为第二电平时， 用于使所述处理内核从先前暂停的地方恢复程序执行； 所述处理内核用于， 当所述硬盘处于休眠状态时， 接收所述主机通过所述控制信号发送 到所述暂停控制引脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理内核 中的程序的运行， 从而暂停对所述硬盘的访问；
所述处理内核还用于， 当所述主机收到业务请求时， 接收所述主机通过所述控制信号发 送到所述暂停控制引脚的第二电平，根据所述暂停控制引脚收到的第二电平恢复程序的执行; 所述处理内核还用于， 通过所述主机接口接收所述主机发送的业务请求， 并通过所述存 储接口向所述硬盘发送接收到的业务请求，从而唤醒所述硬盘并执行与业务请求对应的操作。
2、 如权利要求 1所述的 RAID控制器， 其特征在于，
所述主机接口为外部设备互连快速通道 PCIE接口；
所述存储接口为串行连接小型计算机系统接口 SAS接口， 或者串行先进技术附件 STAT 接口。
3、 根据权利要求 1或 2所述 RAID控制器， 其特征在于， 所述暂停控制引脚包括： 暂停 halt引脚或停止时钟 stpclk引脚。
4、 一种控制系统， 其特征在于， 包括主机、 独立磁盘冗余阵列 RAID控制器和至少一个 硬盘；
所述 RAID控制器包括主机接口、 处理内核以及存储接口； 所述处理内核通过所述主机接口与所述主机相连， 用于通过所述主机接口与所述主机进 行通信；
所述处理内核通过所述存储接口与所述至少一个硬盘相连， 用于通过所述存储接口与所 述至少一个硬盘进行通信； 所述 RAID控制器包括暂停控制引脚， 所述暂停控制引脚与所述主机中的控制信号及所 述处理内核相连； 当所述暂停控制引脚为第一电平时， 用于使所述处理内核暂停程序执行， 当所述暂停控制引脚为第二电平时， 用于使所述处理内核从先前暂停的地方恢复程序执行； 所述处理内核用于， 当所述硬盘处于休眠状态时， 接收所述主机通过所述控制信号发送 到所述暂停控制引脚的第一电平， 根据所述暂停控制引脚收到的第一电平暂停所述处理内核 中的程序的运行， 从而暂停对所述硬盘的访问；
所述处理内核还用于， 当所述主机收到业务请求时， 接收所述主机通过所述控制信号发 送到所述暂停控制引脚的第二电平，根据所述暂停控制引脚收到的第二电平恢复程序的执行; 所述处理内核还用于， 通过所述主机接口接收所述主机发送的业务请求， 并通过所述存 储接口向所述硬盘发送接收到的业务请求，从而唤醒所述硬盘并执行与业务请求对应的操作。
5、 根据权利要求 4所述的系统， 其特征在于，
所述 RAID控制器的主机接口为外部设备互连快速通道 PCIE接口；
所述 RAID控制器的存储接口为串行连接小型计算机系统接口 SAS接口， 或者串行先进 技术附件 STAT接口。
6、 根据权利要求 4或 5所述的系统， 其特征在于， 所述 RAID控制器的暂停控制引脚包 括： 暂停 halt引脚或停止时钟 stpclk引脚。
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CN102880430B (zh) * 2012-09-18 2016-05-11 北京联创信安科技有限公司 一种独立冗余磁盘阵列的管理系统及方法
CN105721530A (zh) * 2014-12-05 2016-06-29 中国移动通信集团公司 一种raid卡、数据存储共享系统和方法
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884098A (en) * 1996-04-18 1999-03-16 Emc Corporation RAID controller system utilizing front end and back end caching systems including communication path connecting two caching systems and synchronizing allocation of blocks in caching systems
CN101354606A (zh) * 2008-09-08 2009-01-28 创新科存储技术（深圳）有限公司 一种磁盘阵列的能耗控制方法、系统及设备
CN101419497A (zh) * 2007-08-24 2009-04-29 威盛电子股份有限公司 数据传输速率调整方法以及计算机系统
CN101776983A (zh) * 2009-01-13 2010-07-14 中兴通讯股份有限公司 磁盘阵列中双控制器信息的同步方法、及磁盘阵列系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002006991A (ja) * 2000-06-16 2002-01-11 Toshiba Corp コンピュータシステム及び冷却ファンの回転数制御方法
US7174471B2 (en) * 2003-12-24 2007-02-06 Intel Corporation System and method for adjusting I/O processor frequency in response to determining that a power set point for a storage device has not been reached
CN101593082A (zh) * 2008-05-26 2009-12-02 联想(北京)有限公司 一种管理存储设备电源电路的装置、方法和计算机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884098A (en) * 1996-04-18 1999-03-16 Emc Corporation RAID controller system utilizing front end and back end caching systems including communication path connecting two caching systems and synchronizing allocation of blocks in caching systems
CN101419497A (zh) * 2007-08-24 2009-04-29 威盛电子股份有限公司 数据传输速率调整方法以及计算机系统
CN101354606A (zh) * 2008-09-08 2009-01-28 创新科存储技术（深圳）有限公司 一种磁盘阵列的能耗控制方法、系统及设备
CN101776983A (zh) * 2009-01-13 2010-07-14 中兴通讯股份有限公司 磁盘阵列中双控制器信息的同步方法、及磁盘阵列系统

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