WO2022252898A1 - 不同存储协议下的数据交互方法、装置、设备及介质 - Google Patents

不同存储协议下的数据交互方法、装置、设备及介质 Download PDF

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Publication number
WO2022252898A1
WO2022252898A1 PCT/CN2022/090144 CN2022090144W WO2022252898A1 WO 2022252898 A1 WO2022252898 A1 WO 2022252898A1 CN 2022090144 W CN2022090144 W CN 2022090144W WO 2022252898 A1 WO2022252898 A1 WO 2022252898A1
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server
storage device
storage
protocol
upgraded
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PCT/CN2022/090144
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English (en)
French (fr)
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李美欣
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浪潮(北京)电子信息产业有限公司
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Priority to US18/270,212 priority Critical patent/US20240106901A1/en
Publication of WO2022252898A1 publication Critical patent/WO2022252898A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/26—Special purpose or proprietary protocols or architectures
    • 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 application relates to the field of computer technology, in particular to a data interaction method, device, device and medium under different storage protocols.
  • FC SAN A common application scenario for storage devices is FC SAN, that is, storage devices are connected to the FC network through FC links, and servers are also connected to the FC network through FC links.
  • the storage device provides block storage space to the server.
  • the interaction between the server and the storage device follows the SCSI protocol, and the FC link carries the SCSI protocol.
  • the industry standard has introduced NVMe over FC technology, which enables servers and storage devices to interact in accordance with the NVMe protocol instead of the SCSI protocol.
  • the server can directly use NVMe over FC technology to connect to the storage device, but for the existing storage device, if the SCSI protocol is used to interact with the server and the server switches to NVMe over FC technology, then the storage device also needs to be switched to NVMe over FC technology interacts with the server.
  • the server when interacting with the SCSI protocol, the server writes data into the storage device through the SCSI protocol.
  • the data When switching to the NVME protocol for interaction, the data must be copied from the storage device through the SCSI protocol, and then written to the data through NVMe over FC. It will take a lot of time to enter the new storage space. And if the original storage device is no longer used, it will also cause a waste of assets.
  • the purpose of this application is to provide a data interaction method, device, device and storage medium under different storage protocols, which can smoothly migrate SCSI storage to NVME storage, thereby improving storage resource utilization.
  • the specific plan is as follows:
  • the first aspect of the present application provides a data interaction method under different storage protocols, including:
  • the preset block data space is remapped to the server in the form of a namespace, so that the server and the upgraded storage device perform data interaction based on the NVME protocol.
  • the establishing a connection relationship between the server and the upgraded storage device based on the NVME protocol includes:
  • a connection relationship is established between the server and the upgraded storage device by using an optical fiber card for data transmission based on the NVME protocol.
  • the remapping the preset block data space to the server in the form of a namespace includes:
  • the server and the upgraded storage device perform data interaction based on the NVME protocol, including:
  • the data request is parsed based on the upgraded NVME protocol parsing function of the storage device, so as to perform data interaction according to the parsed data request.
  • the method before releasing the volume mapping relationship between the server and the upgraded preset block data space of the storage device based on the SCSI protocol, the method further includes:
  • the server is controlled to stop reading operations on the data volume of the preset block data space.
  • the data interaction methods under different storage protocols further include:
  • the data interaction methods under different storage protocols further include:
  • the second aspect of the present application provides a data interaction device under different storage protocols, including:
  • An acquisition module configured to acquire a storage protocol switching instruction, and upgrade the storage device based on the storage protocol switching instruction, so as to obtain the upgraded storage device capable of data interaction with the server based on the NVME protocol;
  • a connection module configured to release the volume mapping relationship between the server and the upgraded preset block data space of the storage device based on the SCSI protocol, and connect the server and the upgraded storage device based on the NVME protocol. Establish a connection relationship between storage devices;
  • a mapping module configured to remap the preset block data space to the server in the form of a namespace, so that the server and the upgraded storage device perform data interaction based on the NVME protocol.
  • the third aspect of the present application provides an electronic device, the electronic device includes a processor and a memory; wherein the memory is used to store a computer program, and the computer program is loaded and executed by the processor to realize the aforementioned different storage The data interaction method under the protocol.
  • the fourth aspect of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are loaded and executed by a processor, the aforementioned different storage protocols can be implemented.
  • the following data interaction methods are used to implement the computer-executable instructions.
  • the storage protocol switching instruction is obtained first, and the storage device is upgraded based on the storage protocol switching instruction to obtain the upgraded storage device capable of data interaction with the server based on the NVME protocol; then the server is released A volume mapping relationship constructed based on the SCSI protocol between the preset block data space of the upgraded storage device, and establishing a connection relationship between the server and the upgraded storage device based on the NVME protocol; finally The preset block data space is remapped to the server in the form of a namespace, so that the server and the upgraded storage device perform data interaction based on the NVME protocol.
  • This application upgrades the storage device based on the obtained storage protocol switching instruction, and on this basis, removes the volume mapping relationship between the server and the storage device's preset block data space based on the SCSI protocol, and based on the NVME protocol, the server and the storage device Establish a connection relationship between them, and then remap the preset block data space to the server in the form of a namespace.
  • the above steps can smoothly migrate SCSI storage to NVME storage and improve storage resource utilization.
  • Fig. 1 is a flow chart of a data interaction method under different storage protocols provided by the present application
  • Fig. 2 is a schematic diagram of a FC SAN application scenario provided by the present application
  • FIG. 3 is a schematic diagram of functional modules of an upgraded storage device provided by the present application.
  • FIG. 4 is a schematic structural diagram of a data interaction device under different storage protocols provided by the present application.
  • FIG. 5 is a structural diagram of a data interaction electronic device under different storage protocols provided by the present application.
  • FIG. 6 is a structural diagram of a computer-readable storage medium provided by the present application.
  • the server when interacting with the SCSI protocol, the server writes data into the storage device through the SCSI protocol.
  • the data When switching to the NVME protocol for interaction, the data must be copied from the storage device through the SCSI protocol, and then through NVMe over FC It will take a lot of time to write data into the new storage space, and if the original storage device is no longer used, it will also cause a waste of assets.
  • the embodiment of the present application provides a data interaction scheme under different storage protocols, upgrades the storage device based on the obtained storage protocol switching instruction, and releases the preset block data space between the server and the storage device on this basis
  • the volume mapping relationship built based on the SCSI protocol and the connection relationship between the server and the storage device are established based on the NVME protocol, and then the preset block data space is remapped to the server in the form of a namespace.
  • the above steps can smoothly migrate SCSI storage To NVME storage, improve storage resource utilization.
  • FIG. 1 is a flow chart of a data interaction method under different storage protocols provided by an embodiment of the present application.
  • the data interaction methods under the different storage protocols include:
  • S11 Obtain a storage protocol switching instruction, and upgrade the storage device based on the storage protocol switching instruction, so as to obtain the upgraded storage device capable of data interaction with the server based on the NVME protocol.
  • the storage protocol switching instruction is first obtained, and then the storage device is upgraded based on the storage protocol switching instruction, so as to obtain the upgraded storage device capable of data interaction with the server based on the NVME protocol.
  • the storage switching instruction is a trigger instruction that represents the interaction between the server and the storage device from using the SCSI protocol to using the NVME protocol.
  • the framework interacts using the SCSI protocol.
  • the storage device presents the block data space to the server in the form of a volume, and the server reads and writes data into the volume, and performs interaction according to the SCSI protocol.
  • the storage device When switching between the server and the storage device to use the NVME protocol for interaction, the storage device needs to be upgraded, and the upgraded storage device can perform data interaction with the server based on the NVME protocol.
  • the upgraded storage device has a host management function, a block data space management function, a protocol analysis function, etc., as shown in FIG. 3 .
  • the host management function identifies the server according to the connection FC port information of the server and the universal unique identification code (UUID) of the server, selects a block data space according to the needs of the business, maps it to the server, and maps the mapping relationship in the Recorded in the host management function module.
  • UUID universal unique identification code
  • the block data space management function records the address, size, and other relevant information of the block data space to ensure that user data can be safely stored in the block data space.
  • the purpose of the protocol analysis function is to interact with the server, accurately understand and analyze the request sent by the server, and store user data in the correct block data space.
  • the block data space is separated from the protocol analysis, mainly including the protocol analysis function and the block data space management function. There is no coupling between them.
  • the protocol analysis function can correctly understand the server's request and respond according to the agreed protocol. Correctly save to the corresponding block data space according to the information in the host management function.
  • the volume mapping relationship between the data spaces is based on the SCSI protocol
  • the connection relationship between the server and the upgraded storage device is established based on the NVME protocol.
  • a connection relationship between the server and the upgraded storage device may be established by using an optical fiber card for data transmission based on the NVME protocol.
  • the fiber card mentioned is an FC card that supports NVMe over FC. If the FC card does not support it, the FC card needs to be replaced.
  • the FC card that supports NVMe over FC can distinguish the protocol type and submit it to the corresponding protocol analysis function module.
  • volume read operations Specifically, after the storage device is upgraded, stop the server from reading and writing volumes through SCSI, operate the host management function on the storage device, and release the block data space that was originally mapped to the server in the form of a volume.
  • the mapping relationship is only to release the volume mapping relationship, and the user data in the block data space remains unchanged. Then let the server establish a connection with the upgraded storage device through the NVMe protocol.
  • S13 Remap the preset block data space to the server in the form of a namespace, so that the server and the upgraded storage device perform data interaction based on the NVME protocol.
  • the preset block data space is remapped to the server in the form of a namespace (namespace), so that the server and the upgraded storage device perform data interaction based on the NVME protocol.
  • the host management function module controls whether to allow the server to connect, and records information about connecting to the server.
  • the process of remapping the preset block data space to the server in the form of a namespace is to first obtain the UUID of the server, and then judge the server and the preset according to the UUID. Whether the block data spaces match, if yes, re-map the preset block data space to the server in the form of a namespace. That is to say, the block data space originally mapped to the specific server is remapped to the server in the form of namespace, and the information is recorded in the host management function module.
  • the server performs data interaction with the upgraded storage device based on the NVME protocol.
  • the server interacts with the upgraded storage device through the NVMe protocol, and reads and writes user data on the storage device.
  • the optical fiber card can be used to filter out the data request based on the NVME protocol sent by the server, and then the data request can be analyzed based on the upgraded NVME protocol analysis function of the storage device , so as to perform data interaction according to the analyzed data request, wherein the NVMe protocol analysis function module processes the request of the server.
  • the interaction between the server and the storage device is upgraded from the SCSI protocol to the NVMe protocol, which can smoothly migrate user data, avoid particularly time-consuming large-scale data copying and writing processes, and protect user storage device assets.
  • the method of smoothly migrating SCSI storage to NVMe storage is upgraded from the SCSI protocol to the NVMe protocol, which can smoothly migrate user data, avoid particularly time-consuming large-scale data copying and writing processes, and protect user storage device assets.
  • the volume mapping relationship and the remapped mapping relationship can be further stored in the storage device, and at the same time, the preset block data Space information is recorded.
  • the mapping information record can be recorded in the host management function module, and the host management function module can manage the server connection information and correctly identify the server, and can manage the direct mapping relationship between the block data space and the server.
  • the host management function module of the storage device after upgrading in this embodiment ensures the correctness of the mapping relationship, and the protocol analysis module ensures that the server request is correctly understood, and the user data to be saved after analysis can be written into the block data In the space, and when the server reads user data, it can respond to the server according to the NVMe protocol and correctly transmit the data to the server.
  • SCSI storage can be smoothly migrated to NVMe storage, which solves the problem of consuming a lot of time for copying data, and can continue to use the original storage device assets, saving costs for users.
  • the storage protocol switching instruction is obtained first, and the storage device is upgraded based on the storage protocol switching instruction to obtain the upgraded storage device capable of data interaction with the server based on the NVME protocol;
  • a volume mapping relationship constructed based on the SCSI protocol between the server and the preset block data space of the upgraded storage device, and establish a connection relationship between the server and the upgraded storage device based on the NVME protocol ;
  • the preset block data space is remapped to the server in the form of a namespace, so that the server and the upgraded storage device perform data interaction based on the NVME protocol.
  • the embodiment of the present application upgrades the storage device based on the obtained storage protocol switching instruction, and on this basis, releases the volume mapping relationship between the server and the preset block data space of the storage device based on the SCSI protocol, and based on the NVME protocol between the server and the storage device. Establish a connection relationship between storage devices, and then remap the preset block data space to the server in the form of a namespace.
  • the above steps can smoothly migrate SCSI storage to NVME storage and improve storage resource utilization.
  • the embodiment of the present application also discloses a data interaction device under different storage protocols correspondingly, including:
  • the acquisition module 11 is configured to acquire a storage protocol switching instruction, and upgrade the storage device based on the storage protocol switching instruction, so as to obtain the upgraded storage device capable of data interaction with the server based on the NVME protocol;
  • the connection module 12 is configured to release the volume mapping relationship between the server and the upgraded preset block data space of the storage device based on the SCSI protocol, and based on the NVME protocol between the server and the upgraded storage device. Establish a connection relationship between the storage devices;
  • the mapping module 13 is configured to remap the preset block data space to the server in the form of a namespace, so that the server and the upgraded storage device perform data interaction based on the NVME protocol.
  • the storage protocol switching instruction is obtained first, and the storage device is upgraded based on the storage protocol switching instruction to obtain the upgraded storage device capable of data interaction with the server based on the NVME protocol;
  • a volume mapping relationship constructed based on the SCSI protocol between the server and the preset block data space of the upgraded storage device, and establish a connection relationship between the server and the upgraded storage device based on the NVME protocol ;
  • the preset block data space is remapped to the server in the form of a namespace, so that the server and the upgraded storage device perform data interaction based on the NVME protocol.
  • the embodiment of the present application upgrades the storage device based on the obtained storage protocol switching instruction, and on this basis, releases the volume mapping relationship between the server and the preset block data space of the storage device based on the SCSI protocol, and based on the NVME protocol between the server and the storage device. Establish a connection relationship between storage devices, and then remap the preset block data space to the server in the form of a namespace.
  • the above steps can smoothly migrate SCSI storage to NVME storage and improve storage resource utilization.
  • connection module 12 is specifically configured to use an optical fiber card for data transmission based on the NVME protocol to establish a connection relationship between the server and the upgraded storage device.
  • mapping module 13 specifically includes:
  • a matching unit configured to obtain the UUID of the server, and judge whether the server matches the preset block data space according to the UUID, and if so, set the preset block data space to remap to said server in the form of a namespace;
  • An interaction unit configured to use the optical fiber card to filter out the data request based on the NVME protocol sent by the server, and analyze the data request based on the upgraded NVME protocol analysis function of the storage device, so as to The parsed data request performs data interaction.
  • the data interaction device under the different storage protocols further includes:
  • a storage module configured to store the volume mapping relationship and the remapped mapping relationship in the storage device, and record the information of the preset block data space.
  • Fig. 5 is a structural diagram of an electronic device 20 according to an exemplary embodiment, and the content in the diagram should not be regarded as any limitation on the application scope of the present application.
  • FIG. 5 is a schematic structural diagram of an electronic device 20 provided in an embodiment of the present application.
  • the electronic device 20 may specifically include: at least one processor 21 , at least one memory 22 , a power supply 23 , a communication interface 24 , an input/output interface 25 and a communication bus 26 .
  • the memory 22 is used to store a computer program, and the computer program is loaded and executed by the processor 21 to implement relevant steps in the data interaction method under different storage protocols disclosed in any of the foregoing embodiments.
  • the power supply 23 is used to provide working voltage for each hardware device on the electronic device 20;
  • the communication interface 24 can create a data transmission channel between the electronic device 20 and external devices, and the communication protocol it follows is applicable Any communication protocol in the technical solution of the present application is not specifically limited here;
  • the input and output interface 25 is used to obtain external input data or output data to the external, and its specific interface type can be selected according to specific application needs, here Not specifically limited.
  • the memory 22, as a resource storage carrier can be a read-only memory, random access memory, magnetic disk or optical disk, etc., and the resources stored thereon can include the operating system 221, computer programs 222 and data 223, etc., and the storage method can be short-term storage or permanent storage.
  • the operating system 221 is used to manage and control each hardware device and computer program 222 on the electronic device 20, so as to realize the operation and processing of the massive data 223 in the memory 22 by the processor 21, which can be Windows Server, Netware, Unix, Linux, etc.
  • the computer program 222 that can be used to complete the data interaction method under different storage protocols performed by the electronic device 20 disclosed in any of the above-mentioned embodiments, it can further include a computer program that can be used to complete other specific tasks .
  • the data 223 may include the mapping relationship collected by the electronic device 20 .
  • FIG. 6 is a structural diagram of a computer-readable storage medium provided by the present application, as shown in FIG. 6.
  • the embodiment of the present application also discloses a computer-readable storage medium 60.
  • Computer-executable instructions 610 are stored in 60, and when the computer-executable instructions 610 are loaded and executed by a processor, the steps of the data interaction method under different storage protocols disclosed in any of the foregoing embodiments are implemented.
  • each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other.
  • the description is relatively simple, and for the related information, please refer to the description of the method part.

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Abstract

本申请公开了一种不同存储协议下的数据交互方法、装置、设备及介质，包括：获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。本申请能够将SCSI存储平滑迁移至NVME存储，从而提高存储资源利用率。

Description

不同存储协议下的数据交互方法、装置、设备及介质
本申请要求在2021年05月31日提交中国专利局、申请号为202110598734.4、发明名称为“不同存储协议下的数据交互方法、装置、设备及介质”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
本申请涉及计算机技术领域，特别涉及一种不同存储协议下的数据交互方法、装置、设备及介质。
背景技术
存储设备常用的应用场景为FC SAN，也就是存储设备通过FC链路连接到FC网络中，服务器也通过FC链路连接到FC网络中。存储设备向服务器提供块存储空间，传统的FC SAN应用中，服务器与存储设备之间遵照SCSI协议进行交互，FC链路承载SCSI协议。
随着近几年存储技术的发展，行业标准推出了NVMe over FC技术，使得服务器与存储设备之间可以遵照NVMe协议交互，而不再使用SCSI协议交互。在新建的数据中心，服务器可以直接使用NVMe over FC技术连接存储设备，但对于已有的存储设备，如果使用SCSI协议与服务器交互，服务器切换至NVMe over FC技术，那么存储设备也需要切换至NVMe over FC技术与服务器交互。然而，在利用SCSI协议交互时，服务器通过SCSI协议将数据写入存储设备中，在切换至NVME协议交互时，必须通过SCSI协议从存储设备中把数据拷贝出来，再通过NVMe over FC把数据写入到新的存储空间中，会耗费大量的时间。并且如果不再使用原有的存储设备也将造成资产的浪费。
因此，如何提供一种不同存储协议下的数据交互方法是本领域技术人员亟待解决的技术问题。
发明内容
有鉴于此，本申请的目的在于提供一种不同存储协议下的数据交互方法、装置、设备及存储介质，能够将SCSI存储平滑迁移至NVME存储，从而提高存储资源利用率。其具体方案如下：
本申请的第一方面提供了一种不同存储协议下的数据交互方法，包括：
获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；
解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；
将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。
可选的，所述基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系，包括：
利用基于所述NVME协议进行数据传输的光纤卡在所述服务器与升级后的所述存储设备之间建立连接关系。
可选的，所述将所述预设块数据空间以命名空间的形式重新映射至所述服务器，包括：
获取所述服务器的通用唯一识别码；
根据所述通用唯一识别码判断所述服务器与所述预设块数据空间是否匹配，如果是，则将所述预设块数据空间以命名空间的形式重新映射至所述服务器。
可选的，所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互，包括：
利用所述光纤卡筛选出所述服务器发送的基于所述NVME协议的数据请求；
基于升级后的所述存储设备的NVME协议解析功能对所述数据请求进行解析，以根据解析后的所述数据请求进行数据交互。
可选的，所述解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系之前，还包括：
控制所述服务器停止对预设块数据空间的数据卷的读取操作。
可选的，所述不同存储协议下的数据交互方法还包括：
将所述卷映射关系、重新映射后的映射关系存储至所述存储设备中。
可选的，所述不同存储协议下的数据交互方法还包括：
对所述预设块数据空间的信息进行记录。
本申请的第二方面提供了一种不同存储协议下的数据交互装置，包括：
获取模块，用于获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；
连接模块，用于解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；
映射模块，用于将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。
本申请的第三方面提供了一种电子设备，所述电子设备包括处理器和存储器；其中所述存储器用于存储计算机程序，所述计算机程序由所述处理器加载并执行以实现前述不同存储协议下的数据交互方法。
本申请的第四方面提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机可执行指令，所述计算机可执行指令被处理器加载并执行时，实现前述不同存储协议下的数据交互方法。
本申请中，先获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；然后解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；最后将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。本申请基于获取到 的存储协议切换指令对存储设备进行升级，在此基础上解除服务器与存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系并基于NVME协议在服务器与存储设备之间建立连接关系，进而将预设块数据空间以命名空间的形式重新映射至服务器，上述步骤能够将SCSI存储平滑迁移至NVME存储，提高存储资源利用率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术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申请的实施例，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，还可以根据提供的附图获得其他的附图。
图1为本申请提供的一种不同存储协议下的数据交互方法流程图；
图2为本申请提供的一种FC SAN应用场景示意图；
图3为本申请提供的一种升级后的存储设备的功能模块示意图；
图4为本申请提供的一种不同存储协议下的数据交互装置结构示意图；
图5为本申请提供的一种不同存储协议下的数据交互电子设备结构图；
图6为本申请提供的一种计算机可读存储介质结构图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
现有技术中，在利用SCSI协议交互时，服务器通过SCSI协议将数据写入存储设备中，在切换至NVME协议交互时，必须通过SCSI协议从存储设备中把数据拷贝出来，再通过NVMe over FC把数据写入到新的存储空间中，会耗费大量的时间，并且如果不再使用原有的存储设备也将造成资产的浪费。针对上述技术缺陷，本申请实施例提供一种不同存储协议下的数据交互方案，基于获取到的存储协议切换指令对存储设备进行升级，在此基础上解除服务 器与存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系并基于NVME协议在服务器与存储设备之间建立连接关系，进而将预设块数据空间以命名空间的形式重新映射至服务器，上述步骤能够将SCSI存储平滑迁移至NVME存储，提高存储资源利用率。
图1为本申请实施例提供的一种不同存储协议下的数据交互方法流程图。参见图1所示，该不同存储协议下的数据交互方法包括：
S11：获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备。
本实施例中，首先获取存储协议切换指令，然后基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备。所述存储切换指令为表征所述服务器与所述存储设备之间从利用SCSI协议进行交互转换为利用NVME协议进行交互的触发指令，其中，所述服务器与所述存储设备可以按照图2所示架构利用SCSI协议进行交互。此时，所述存储设备将块数据空间以卷的形式呈现给所述服务器，所述服务器向卷中读写数据，遵照SCSI协议进行交互。
当所述服务器与所述存储设备之间切换至利用NVME协议交互时，需要对所述存储设备进行升级，升级后的所述存储设备能够基于NVME协议与所述服务器进行数据交互。升级后的所述存储设备具备主机管理功能、块数据空间管理功能、协议解析功能等，具体如图3所示。其中，所述主机管理功能根据服务器的连接FC端口信息以及服务器的通用唯一识别码(UUID)识别服务器，按照业务的需要，选择块数据空间，将其映射给服务器，并将映射关系在所述主机管理功能模块中进行记录。所述块数据空间管理功能记录着块数据空间的地址，大小，以及其他相关信息，确保用户数据能够安全的保存在块数据空间中。所述协议解析功能，目的是与服务器交互，能够准确理解和解析所述服务器发来的请求，并且把用户数据存放到正确的块数据空间中。另外，块数据空间与协议解析分离，主要包括协议解析功能和块数据空间管理功能，他们之间不耦合，协议解析功能能够正确理解服务器的请求，并按约定的协议回应，对于用户数据，能够根据主机管理功能中的信息正确保存 到对应的块数据空间。
S12：解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系。
本实施例中，在从利用SCSI协议进行交互转换为利用NVME协议进行交互时，也即平滑迁移SCSI存储到NVMe存储时，首先需要解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系。具体的，可以利用基于所述NVME协议进行数据传输的光纤卡在所述服务器与升级后的所述存储设备之间建立连接关系。所述光纤卡为支持NVMe over FC的FC卡，如果FC卡不支持，那么需要更换FC卡。支持NVMe over FC的FC卡能够区分协议类型，并递交到对应的所述协议解析功能模块。
不难理解，在解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系之前还需要进一步控制所述服务器停止对预设块数据空间的数据卷的读取操作。具体来说，在所述存储设备升级之后，停止所述服务器通过SCSI对卷的读写，在所述存储设备上操作主机管理功能，把原来以卷形式映射给所述服务器的块数据空间解除映射关系，仅是解除卷映射关系，块数据空间中的用户数据保持不变。继而让所述服务器通过NVMe协议与升级后的所述存储设备建立连接。
S13：将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。
本实施例中，将所述预设块数据空间以命名空间(namespace)的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。所述主机管理功能模块控制着是否允许所述服务器连接，并记录连接服务器的信息。将所述预设块数据空间以命名空间的形式重新映射至所述服务器的过程为首先获取所述服务器的通用唯一识别码，然后根据所述通用唯一识别码判断所述服务器与所述预设块数据空间是否匹配，如果是，则将所述预设块数据空间以命名空间的形式重新映射至所述服 务器。也即将原映射给此特定服务器的块数据空间，重新以namespace形式映射给服务器，并将信息记录在所述主机管理功能模块中。
可选的，所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。所述服务器与升级后的所述存储设备以NVMe协议交互，读写所述存储设备上的用户数据。基于上述步骤，本实施例可以利用所述光纤卡筛选出所述服务器发送的基于所述NVME协议的数据请求，然后基于升级后的所述存储设备的NVME协议解析功能对所述数据请求进行解析，以根据解析后的所述数据请求进行数据交互，其中，NVMe协议解析功能模块处理所述服务器的请求。FC SAN应用场景中，服务器与存储设备的交互从SCSI协议升级到NVMe协议，能够将用户数据平滑迁移，避免特别耗时的大规模数据拷出和写入过程，且能保护用户存储设备资产继续使用，实现平滑迁移SCSI存储到NVMe存储的方法。
另外，为了提高系统的容错率及配置恢复能力，本申请实施例中还可以进一步将所述卷映射关系、重新映射后的映射关系存储至所述存储设备中，同时对所述预设块数据空间的信息进行记录。其中，映射信息记录可以在主机管理功能模块中进行记录，所述主机管理功能模块能够管理服务器连接信息并正确识别服务器，能够管理块数据空间与服务器直接的映射关系。
本实施例中升级后的所述存储设备的主机管理功能模块确保了映射关系的正确性，协议解析模块确保了正确理解服务器请求，并能将解析后的待保存的用户数据写入到块数据空间中，以及在服务器读取用户数据时能够按照NVMe的协议约定回应服务器，并正确把数据传输到服务器。从而能将SCSI存储平滑迁移至NVMe存储，解决了拷贝数据耗费大量时间的问题，并且可以继续使用原有存储设备资产，为用户节约成本。
可见，本申请实施例先获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；然后解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；最后将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。本申请 实施例基于获取到的存储协议切换指令对存储设备进行升级，在此基础上解除服务器与存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系并基于NVME协议在服务器与存储设备之间建立连接关系，进而将预设块数据空间以命名空间的形式重新映射至服务器，上述步骤能够将SCSI存储平滑迁移至NVME存储，提高存储资源利用率。
参见图4所示，本申请实施例还相应公开了一种不同存储协议下的数据交互装置，包括：
获取模块11，用于获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；
连接模块12，用于解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；
映射模块13，用于将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。
可见，本申请实施例先获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；然后解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；最后将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。本申请实施例基于获取到的存储协议切换指令对存储设备进行升级，在此基础上解除服务器与存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系并基于NVME协议在服务器与存储设备之间建立连接关系，进而将预设块数据空间以命名空间的形式重新映射至服务器，上述步骤能够将SCSI存储平滑迁移至NVME存储，提高存储资源利用率。
在一些具体实施例中，所述连接模块12，具体用于利用基于所述NVME协议进行数据传输的光纤卡在所述服务器与升级后的所述存储设备之间建立连接关系。
在一些具体实施例中，所述映射模块13，具体包括：
匹配单元，用于获取所述服务器的通用唯一识别码，并根据所述通用唯一识别码判断所述服务器与所述预设块数据空间是否匹配，如果是，则将所述预设块数据空间以命名空间的形式重新映射至所述服务器；
交互单元，用于利用所述光纤卡筛选出所述服务器发送的基于所述NVME协议的数据请求，并基于升级后的所述存储设备的NVME协议解析功能对所述数据请求进行解析，以根据解析后的所述数据请求进行数据交互。
在一些具体实施例中，所述不同存储协议下的数据交互装置还包括：
存储模块，用于将所述卷映射关系、重新映射后的映射关系存储至所述存储设备中，以及对所述预设块数据空间的信息进行记录。
可选的，本申请实施例还提供了一种电子设备。图5是根据一示例性实施例示出的电子设备20结构图，图中的内容不能认为是对本申请的使用范围的任何限制。
图5为本申请实施例提供的一种电子设备20的结构示意图。该电子设备20，具体可以包括：至少一个处理器21、至少一个存储器22、电源23、通信接口24、输入输出接口25和通信总线26。其中，所述存储器22用于存储计算机程序，所述计算机程序由所述处理器21加载并执行，以实现前述任一实施例公开的不同存储协议下的数据交互方法中的相关步骤。
本实施例中，电源23用于为电子设备20上的各硬件设备提供工作电压；通信接口24能够为电子设备20创建与外界设备之间的数据传输通道，其所遵循的通信协议是能够适用于本申请技术方案的任意通信协议，在此不对其进行具体限定；输入输出接口25，用于获取外界输入数据或向外界输出数据，其具体的接口类型可以根据具体应用需要进行选取，在此不进行具体限定。
另外，存储器22作为资源存储的载体，可以是只读存储器、随机存储器、磁盘或者光盘等，其上所存储的资源可以包括操作系统221、计算机程序222及数据223等，存储方式可以是短暂存储或者永久存储。
其中，操作系统221用于管理与控制电子设备20上的各硬件设备以及计算机程序222，以实现处理器21对存储器22中海量数据223的运算与处理，其可以是Windows Server、Netware、Unix、Linux等。计算机程序222除了包括能够用于完成前述任一实施例公开的由电子设备20执行的不同存储协议下的数据交互方法的计算机程序之外，还可以进一步包括能够用于完成其他特定工作的计算机程序。数据223可以包括电子设备20收集到的映射关系。
图6为本申请提供的一种计算机可读存储介质结构图，参见图6所示，可选的，本申请实施例还公开了一种计算机可读存储介质60，所述计算机可读存储介质60中存储有计算机可执行指令610，所述计算机可执行指令610被处理器加载并执行时，实现前述任一实施例公开的不同存储协议下的数据交互方法步骤。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同或相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。
最后，还需要说明的是，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。
以上对本申请所提供的不同存储协议下的数据交互方法、装置、设备及存储介质进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施 方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (10)

  1. 一种不同存储协议下的数据交互方法，其特征在于，包括：
    获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；
    解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；
    将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。
  2. 根据权利要求1所述的不同存储协议下的数据交互方法，其特征在于，所述基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系，包括：
    利用基于所述NVME协议进行数据传输的光纤卡在所述服务器与升级后的所述存储设备之间建立连接关系。
  3. 根据权利要求1所述的不同存储协议下的数据交互方法，其特征在于，所述将所述预设块数据空间以命名空间的形式重新映射至所述服务器，包括：
    获取所述服务器的通用唯一识别码；
    根据所述通用唯一识别码判断所述服务器与所述预设块数据空间是否匹配，如果是，则将所述预设块数据空间以命名空间的形式重新映射至所述服务器。
  4. 根据权利要求2所述的不同存储协议下的数据交互方法，其特征在于，所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互，包括：
    利用所述光纤卡筛选出所述服务器发送的基于所述NVME协议的数据请求；
    基于升级后的所述存储设备的NVME协议解析功能对所述数据请求进行解析，以根据解析后的所述数据请求进行数据交互。
  5. 根据权利要求1所述的不同存储协议下的数据交互方法，其特征在于，所述解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系之前，还包括：
    控制所述服务器停止对预设块数据空间的数据卷的读取操作。
  6. 根据权利要求1至5任一项所述的不同存储协议下的数据交互方法，其特征在于，还包括：将所述卷映射关系、重新映射后的映射关系存储至所述存储设备中。
  7. 根据权利要求1至5任一项所述的不同存储协议下的数据交互方法，其特征在于，还包括：对所述预设块数据空间的信息进行记录。
  8. 一种不同存储协议下的数据交互装置，其特征在于，包括：
    获取模块，用于获取存储协议切换指令，并基于所述存储协议切换指令对存储设备进行升级，以得到能够基于NVME协议与服务器进行数据交互的升级后的所述存储设备；
    连接模块，用于解除所述服务器与升级后的所述存储设备的预设块数据空间之间基于SCSI协议构建的卷映射关系，并基于所述NVME协议在所述服务器与升级后的所述存储设备之间建立连接关系；
    映射模块，用于将所述预设块数据空间以命名空间的形式重新映射至所述服务器，以使所述服务器与升级后的所述存储设备基于所述NVME协议进行数据交互。
  9. 一种电子设备，其特征在于，所述电子设备包括处理器和存储器；其中所述存储器用于存储计算机程序，所述计算机程序由所述处理器加载并执行以实现如权利要求1至7任一项所述的不同存储协议下的数据交互方法。
  10. 一种计算机可读存储介质，其特征在于，用于存储计算机可执行指令，所述计算机可执行指令被处理器加载并执行时，实现如权利要求1至7任一项所述的不同存储协议下的数据交互方法。
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