CN112732183A - Access method, device and equipment of heterogeneous system storage equipment and storage medium - Google Patents
Access method, device and equipment of heterogeneous system storage equipment and storage medium Download PDFInfo
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- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
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- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
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Abstract
The invention provides an access method, an access device, equipment and a storage medium of heterogeneous system storage equipment. The non-real-time system creates logic storage equipment of each real-time system on common physical storage equipment for each real-time system according to the configuration file; the configuration file comprises configuration parameters defining a logic storage device of each real-time system in the heterogeneous system; and each real-time system acquires the information of the logic storage equipment created for the non-real-time system, and accesses the logic storage equipment of the non-real-time system according to the information. The method, the device, the equipment and the storage medium of the invention realize that the storage spaces of the real-time systems in the heterogeneous system are not overlapped and not influenced mutually, and save the hardware cost.
Description
Technical Field
The present invention relates to the technical field of storage device management of computer operating systems, and in particular, to a method, an apparatus, a device, and a storage medium for accessing a storage device of a heterogeneous system.
Background
Heterogeneous systems have been gradually applied to the field of embedded and real-time operating systems, a storage device of a current heterogeneous system generally adopts a strategy that each system independently configures one physical storage device, and when more and more systems are available in the heterogeneous system, the technology has two disadvantages:
1) the hardware cost is increased while the storage resources are wasted by each system;
2) when the number of running systems is large enough, the hardware cannot meet the requirement, for example, 100 systems are run on a 100-core processor unit, and if 1 hard disk is configured for each system, 100 hard disks need to be configured, which is very difficult to implement on hardware.
Disclosure of Invention
In view of this, embodiments of the present invention provide an access method and an access device for a storage device of a heterogeneous system, which create dedicated logical storage devices with mutually non-overlapping spaces in a same physical storage device for each real-time system of the heterogeneous system, so that the real-time systems of the heterogeneous system share the same physical storage device and read and write of the logical storage devices are not affected by each other, thereby saving hardware cost.
In a first aspect, an embodiment of the present invention provides an access method for a storage device of a heterogeneous system, where the heterogeneous system includes a real-time system and a non-real-time system, and the non-real-time system creates a logical storage device of each real-time system on a common physical storage device for each real-time system according to a configuration file; the configuration file comprises configuration parameters defining a logic storage device of each real-time system in the heterogeneous system; and each real-time system acquires the information of the logic storage equipment created for the non-real-time system, and accesses the logic storage equipment of the non-real-time system according to the information.
Therefore, exclusive logic storage equipment is established for each real-time system of the heterogeneous system on the shared physical storage equipment, the storage space of each real-time system is not overlapped and not influenced, and the hardware cost is saved.
In a possible implementation manner of an access method for a heterogeneous system storage device, the configuration file specifically includes: configuring a script file and an equipment information file for acquiring configured logic storage equipment information by the real-time system; and the configuration script file comprises configuration parameters of logic storage equipment of each real-time system in the defined heterogeneous system.
The configuration script file is used for the non-real-time system to create the logic storage device of each real-time system, and the device information file is used for each real-time system to acquire the logic storage device information thereof, so that the information of the logic storage device acquired by the real-time system and the non-real-time system is kept consistent.
In a possible implementation manner of the method for accessing a storage device of a heterogeneous system, the creating, by the non-real-time system, a logical storage device of each real-time system on a common physical storage device for each real-time system according to a configuration file includes: the non-real-time system runs the configuration script file, creates logic storage equipment of each real-time system on common physical storage equipment for each real-time system according to configuration parameters, and stores the equipment information file to a specified memory address; each real-time system acquires the logic storage device information created for the non-real-time system, and the method comprises the following steps: and each implementation system acquires the equipment information file on the memory address and acquires the logic storage equipment information according to the equipment information file.
Therefore, each real-time system acquires the equipment information file from the memory of the designated address, so that the configuration parameters are consistent when the non-real-time system configures the logic storage equipment of each real-time system.
In a possible implementation manner of the access method for the heterogeneous system storage device, the configuration script file further includes: a logical storage device mount path; the device information file includes: the IP address of the non-real-time system and the mounting path of the logic storage equipment; after the non-real-time system creates the logic storage device of each real-time system on the common physical storage device for each real-time system according to the configuration parameters, the method further comprises the following steps: mounting the created logic storage equipment of each real-time system to the logic storage equipment mounting path; each real-time system acquires the logic storage device information according to the device information file, and the method comprises the following steps: and each real-time system communicates with the non-real-time system according to the IP address of the non-real-time system, and mounts the directory of the logic storage equipment to the local according to the mounting path of the logic storage equipment.
Therefore, the real-time system accurately accesses the logic storage device based on the IP address of the non-real-time system and the mounting path of the logic storage device.
In one possible implementation manner of the access method of the heterogeneous system storage device, the real-time system accesses the logic storage device of the real-time system by using a protocol agreed with a non-real-time system.
Therefore, each real-time system uses the agreed protocol, so as to accurately access the logic storage device.
In a possible implementation manner of the access method for the heterogeneous system storage device, the non-real-time system obtains the configuration file configured on the integrated development environment side.
Therefore, the configuration file is configured on the integrated development environment side, the correctness of the configuration file is ensured, and the risk of configuration errors is reduced.
In a possible implementation manner of the method for accessing the storage device of the heterogeneous system, the configuration parameter includes a size of a storage space required by each real-time system; the non-real-time system creates a logic storage device of each real-time system on a common physical storage device for each real-time system according to the configuration file, and the method comprises the following steps: the non-real-time system acquires the size of the storage space required by each real-time system according to the configuration file, and creates a logic storage device with a corresponding size.
Therefore, the logical storage device of each real-time system is created according to the size of the storage space required by each real-time system, so that the storage requirements of each real-time system are met on the limited physical storage device.
In a second aspect, an embodiment of the present invention provides an access apparatus for a storage device of a heterogeneous system, where the heterogeneous system includes a real-time system and a non-real-time system, and includes a first control module, configured to control the non-real-time system to create, on a common physical storage device, a logical storage device of each real-time system for each real-time system according to a configuration file; the configuration file comprises configuration parameters defining a logic storage device of each real-time system in the heterogeneous system; the second control module is used for controlling each real-time system to acquire the logic storage equipment information of the real-time system; and the logic storage access module is used for accessing the logic storage equipment of each real-time system according to the logic storage equipment information of each real-time system.
Therefore, exclusive logic storage equipment is established for each real-time system of the heterogeneous system on the shared physical storage equipment, the storage space of each real-time system is not overlapped and not influenced, and the hardware cost is saved.
In a possible implementation manner of an access apparatus of a heterogeneous system storage device, the configuration file specifically includes: configuring a script file and an equipment information file for acquiring configured logic storage equipment information by the real-time system; and the configuration script file comprises configuration parameters of logic storage equipment of each real-time system in the defined heterogeneous system.
The configuration script file is used for the non-real-time system to create the logic storage device of each real-time system, and the device information file is used for each real-time system to acquire the logic storage device information thereof, so that the information of the logic storage device acquired by the real-time system and the non-real-time system is kept consistent.
In a possible implementation manner of an access apparatus of a heterogeneous system storage device, the first control module includes: the configuration file importing module is used for importing the configuration file and storing the equipment information file to a specified memory address; the logic storage creating module is used for the non-real-time system to run the configuration script file and create logic storage equipment of each real-time system on common physical storage equipment for each real-time system according to configuration parameters; and the second control module comprises an equipment information acquisition module used for acquiring the equipment information file on the memory address by each implementation system and acquiring the logic storage equipment information based on the equipment information file.
Therefore, each real-time system acquires the configuration parameters from the memory of the designated address, so that the configuration parameters are consistent with those of the non-real-time system when the non-real-time system configures the logical volume of each real-time system.
In a possible implementation manner of an access apparatus of a heterogeneous system storage device, the configuration script file further includes: a logical storage device mount path; the device information file includes: the IP address of the non-real-time system and the mounting path of the logic storage equipment; the logic storage creating module is further used for mounting the created logic storage devices of the real-time systems to the logic storage device mounting path; the logic storage access module is also used for communicating with the non-real-time system by each real-time system according to the IP address of the non-real-time system; the device information obtaining module is further configured to mount the directory of the logical storage device to a local area according to the logical storage device mounting path.
Therefore, the real-time system accurately accesses the exclusive logic storage device based on the IP address and the logic storage device mounting path of the non-real-time system.
In a possible implementation manner of the access apparatus for the heterogeneous system storage device, the first control module further includes an access protocol first configuration module, configured to configure a protocol agreed by a non-real-time system, and configured to accept each real-time system to access the logical storage device thereof; the second control module also comprises an access protocol second configuration module which is used for configuring the agreed protocol by each real-time system so as to access the logic storage device of the real-time system.
And each real-time system configures an access protocol agreed by the non-real-time system, so that the logic storage equipment is accurately accessed.
In a possible implementation manner of the access apparatus for a heterogeneous system storage device, the configuration file importing module is further configured to obtain, by a non-real-time system, the configuration file configured on the integrated development environment side.
Therefore, the configuration file is configured on the integrated development environment side, the correctness of the configuration file is ensured, and the risk of configuration errors is reduced.
In a possible implementation manner of the access device of the heterogeneous system storage device, the configuration parameter includes a size of a storage space required by each real-time system; the logic storage creating module is further used for the non-real-time system to obtain the size of the storage space required by each real-time system according to the configuration file and creating logic storage equipment with corresponding size.
Therefore, the logical storage device of each real-time system is created according to the size of the storage space required by each real-time system, so that the storage requirements of each real-time system are met on the limited physical storage device.
In a third aspect, embodiments of the invention provide a computing device comprising,
a bus;
a communication interface connected to the bus;
at least one processor coupled to the bus; and
at least one memory coupled to the bus and storing program instructions that, when executed by the at least one processor, cause the at least one processor to perform any of the embodiments of the first aspect of the present invention.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which program instructions are stored, where the program instructions, when executed by a computer, cause the computer to execute any one of the embodiments of the first aspect.
Drawings
Fig. 1A is a schematic diagram of a heterogeneous system structure according to an embodiment of the present invention;
fig. 1B is a schematic structural diagram of a shared storage device of a heterogeneous system according to an embodiment of the present invention;
fig. 2A is a schematic flowchart of a first embodiment of an access method for a storage device of a heterogeneous system according to the present invention;
fig. 2B is a flowchart illustrating a second embodiment of an access method for a storage device of a heterogeneous system according to the present invention;
fig. 3A is a schematic structural diagram of a first embodiment of an access apparatus of a storage device of a heterogeneous system according to the present invention;
fig. 3B is a schematic structural diagram of a second embodiment of an access apparatus for implementing a storage device of a heterogeneous system according to the present invention;
fig. 4 is a schematic structural diagram of a computing device according to an embodiment of the present invention.
Detailed Description
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.
In the following description, references to the terms "first \ second \ third, etc." or module a, module B, module C, etc. are used solely to distinguish between similar objects or different embodiments and are not intended to imply a particular ordering with respect to the objects, it being understood that where permissible any particular ordering or sequence may be interchanged to enable embodiments of the invention described herein to be practiced otherwise than as shown or described herein.
In the following description, reference to reference numerals indicating steps, such as S110, S120 … …, etc., does not necessarily indicate that the steps are performed in this order, and the order of the preceding and following steps may be interchanged or performed simultaneously, where permissible.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to be limiting of the invention.
Before further detailed description of the embodiments of the present invention, terms and expressions in the embodiments of the present invention and their corresponding uses, functions, and so on in the present invention are described, and the terms and expressions in the embodiments of the present invention are applicable to the following explanations.
1. The heterogeneous system refers to a computer system composed of a plurality of different types of computing platforms or application systems, and the heterogeneous system refers to a computer system composed of a plurality of non-real-time systems and a plurality of real-time systems.
2. Logical Volume (lv), a virtual disk formed by Logical disks. Several disk partitions or block devices are organized to form a large volume group which cannot be directly used and only needs to be divided into logical volumes lv to be used, and the lv can be formatted into different file systems and can be directly used after being mounted.
3. Network File System NFS (network File System)，The UNIX or Linux presentation layer protocol (presentation layer protocol) developed by SUN corporation enables users to access files elsewhere on the network as if they were using their own computer.
Fig. 1A shows an operating environment of an embodiment of the present invention, i.e., a structural diagram of a heterogeneous system.
Illustratively, the heterogeneous system illustrated in fig. 1 includes 4 processor cores (Core0, Core1, Core2, Core3), wherein Core0 and Core1 support non-real-Time operating systems Window and Linux running through a Linux + KVM (Kernel-based Virtual Machine) Virtual Machine operating environment, and Core2 and Core3 support a real-Time operating system rtos (real Time Operation system) running through an Intewell (industrial internet operating system of tokyo east science and technology ltd).
Fig. 1B illustrates a schematic structural diagram of a shared storage device of a heterogeneous system according to an embodiment of the present invention.
Illustratively, hda0(hard drive A0), hda1, hda2 represent three hard disks, which form a hard disk array, and an entire column of real hard disks may contain any number of hard disks, and the available space of these hard disks is mapped to logical volumes lv through MAP mapping and accessed through an access protocol of a file system, such as NFS protocol.
The invention provides an access method of a heterogeneous system storage device, wherein the heterogeneous system comprises a real-time system and a non-real-time system, and the method comprises the following steps:
firstly, the non-real-time system creates logic storage equipment of each real-time system on common physical storage equipment for each real-time system according to a configuration file; the configuration file comprises configuration parameters defining a logic storage device of each real-time system in the heterogeneous system;
then, each real-time system acquires the information of the logic storage device created for the non-real-time system, and accesses the logic storage device according to the information.
By the method and the device, the exclusive logic storage devices with mutually non-overlapping spaces can be established in the same physical storage device for each real-time system of the heterogeneous system, so that the real-time systems of the heterogeneous system share the same physical storage device, the reading and writing of the logic storage devices are not influenced mutually, and the hardware cost is saved. The present invention will be described in detail with reference to the following examples.
In some embodiments, the configuration file specifically includes: configuring a script file and an equipment information file for acquiring configured logic storage equipment information by the real-time system; and the configuration script file comprises configuration parameters of logic storage equipment of each real-time system in the defined heterogeneous system. The configuration script file is used for the non-real-time system to create the logic storage device of each real-time system, and the device information file is used for each real-time system to acquire the logic storage device information, so that the information of the logic storage devices acquired by the real-time system and the non-real-time system is kept consistent.
In some embodiments, the non-real-time system creating a logical storage device of each real-time system on a common physical storage device for each real-time system according to a configuration file, comprising: the non-real-time system runs the configuration script file, creates logic storage equipment of each real-time system on common physical storage equipment for each real-time system according to configuration parameters, and stores the equipment information file to a specified memory address;
each real-time system acquires the logic storage device information created for the non-real-time system, and the method comprises the following steps: and each implementation system acquires the equipment information file on the memory address and acquires the logic storage equipment information according to the equipment information file.
In some embodiments, the configuration script file further comprises: a logical storage device mount path; the device information file includes: the IP address of the non-real-time system and the mounting path of the logic storage equipment;
after the non-real-time system creates the logic storage device of each real-time system on the common physical storage device for each real-time system according to the configuration parameters, the method further comprises the following steps: mounting the created logic storage equipment of each real-time system to the logic storage equipment mounting path;
each real-time system acquires the logic storage device information according to the device information file, and the method comprises the following steps: and each real-time system communicates with the non-real-time system according to the IP address of the non-real-time system, and mounts the directory of the logic storage equipment to the local according to the mounting path of the logic storage equipment. The real-time system can accurately access the logic storage device based on the IP address of the non-real-time system and the mounting path of the logic storage device.
In some embodiments, the real-time system accesses its logical storage device using a protocol agreed upon with non-real-time systems. Each real-time system uses the agreed protocol, so that the logical storage device of each real-time system is accurately accessed.
In some embodiments, the non-real-time system obtains the configuration file of an integrated development environment-side configuration. The configuration file is configured on the integrated development environment side, so that the correctness of the configuration file is ensured, and the risk of configuration errors is reduced.
In some embodiments, the configuration parameters include a size of storage space required for each real-time system; the non-real-time system creates a logic storage device of each real-time system on a common physical storage device for each real-time system according to the configuration file, and the method comprises the following steps: the non-real-time system acquires the size of the storage space required by each real-time system according to the configuration file, and creates a logic storage device with a corresponding size.
Because the logical storage device can be created according to the size of the storage space required by each real-time system, the storage requirements of each real-time system can be met on the limited physical storage device.
Embodiments of an access method for a heterogeneous system storage device according to an embodiment of the present invention are described below with reference to fig. 1A to fig. 2B.
First embodiment of access method for heterogeneous system storage device
Fig. 2A shows a flowchart of a first embodiment of a method for accessing a storage device of a heterogeneous system, where the flowchart includes the following steps:
The configuration file comprises a configuration script file and a device information file, wherein the configuration script file comprises a configuration script which defines configuration parameters of the logic storage device of each real-time system, such as the size of each logic storage device and the mounting path of each logic storage device. The device information file defines device information of the logical storage device of each real-time system in the heterogeneous system, such as the size and mounting path of the logical storage device and the IP address of the non-real-time system.
The configuration file is created in a mode of being created based on an external computer or being created by a heterogeneous system.
Specifically, the non-real-time system acquires the size of a storage space required by each real-time system according to a configuration file, and creates a logic storage device with a corresponding size; and mounting the created logic storage equipment of each real-time system to the logic storage equipment mounting path.
Wherein the logical storage device comprises a logical partition and a logical volume lv.
And step 1030, each real-time system acquires the equipment information of each logic storage equipment.
The real-time systems acquire the device information of the logic storage devices in a mode agreed by the non-real-time systems, wherein the agreed mode comprises a memory with a shared agreed address or intersystem communication.
And each real-time system mounts the directory of the logic storage equipment to the local according to the mounting path in the logic storage equipment information.
Specifically, each real-time system communicates with the non-real-time system according to the IP address of the non-real-time system in the device information of the logical storage device, and each real-time system accesses the logical storage device based on the requirement, and determines whether the allocation space is exceeded or not according to the size of the logical storage device in the device information of the logical storage device when writing data to the logical storage device.
The access protocol of the real-time system is not limited, and includes NFS protocol and smb (server Message block) protocol.
In summary, in an embodiment of a method for accessing a storage device of a heterogeneous system, a dedicated logical storage device is created for each real-time system of the heterogeneous system on a shared physical storage device, so that storage spaces of each real-time system are not overlapped and not affected, and hardware cost is saved.
Second embodiment of access method for heterogeneous system storage device
Fig. 2B shows a flowchart of a second method for accessing a storage device of a heterogeneous system, where the second method is the optimal embodiment of the first method when the non-real-time system is a Linux system, and the exclusive logical storage device created by the Linux for each real-time system is a logical volume lv and is accessed using an NFS protocol. The process comprises the following steps:
Wherein, a configuration file is created in an integrated Development environment ide (integrated Development environment) of the heterogeneous system, the configuration file comprises a configuration script file and a device information file, the configuration script file comprises a configuration script, and the configuration script file defines configuration parameters of the logic volume lv of each real-time system, such as the size and the mounting path of each logic volume lv, and is used for creating the logic volume lv for each real-time system in the Linux of the non-real-time system. The device information file defines device information of a logical volume lv of each real-time system in the heterogeneous system, such as the size of the logical volume lv, a mount path, and an IP address of the non-real-time system.
Therefore, the configuration script file is quickly generated by utilizing the development environment of the IDE, and the configuration script is ensured to be correct.
The Linux in the non-real-time system acquires the configuration script file from the imported configuration file, and the configuration script file is used for creating the logic volume lv for each real-time system in the Linux of the non-real-time system. And acquiring the equipment information file from the imported configuration file, and storing the equipment information file in the appointed address of the memory of the computer, so that the real-time system can conveniently acquire the equipment information of each logical volume lv, wherein the appointed address is a known address of each real-time system.
And the device information file is imported into the memory at the appointed address, so that the real-time system can conveniently acquire the device information of each logical volume lv, and each real-time system can correctly access the logical volume lv.
And the Linux in the non-real-time system uses the configuration script in the configuration file to create a dedicated logical volume lv of each real-time system.
Wherein the step of creating a dedicated logical volume lv for each real-time system comprises:
(1) generating volume group VG (volume group) from part or all of the available space of the physical hard disk array shown in FIG. 1B
(2) And based on the size parameter of the logical volume in the configuration parameters, creating a dedicated logical volume lv of each real-time system in the volume group VG.
(3) Each logical volume lv is formatted as a defined file system, in this embodiment an NFS system.
(4) And creating a mounting path of each logical volume lv based on the mounting path in the configuration parameters, and mounting the corresponding logical volume lv on the mounting path.
Therefore, exclusive logic storage equipment, namely logic volume lv is established for each real-time system of the heterogeneous system on the shared physical storage equipment, so that the storage space of each real-time system is not overlapped and not influenced, and the hardware cost is saved. Meanwhile, compared with the capacity allocation of the logical partitions, the logical volume lv is flexible in capacity allocation, can be expanded on line, is named, and is low in later maintenance cost.
In this embodiment, the NFS access protocol is used, and each logical volume lv created by the Linux system already supports the NFS access protocol by default, so the step of configuring the access protocol for each logical volume lv created by the Linux system may be omitted.
Therefore, the NFS protocol provides a transparent file transmission mode, the transmission performance is good, the existing system is not changed, and the adaptation is easy. The non-real-time system and the real-time system use the NFS access protocol, so that the real-time system is directly adaptive to the NFS without modification, and high-performance data transmission is realized.
And each real-time system acquires the equipment information file from the memory of the computer appointed address, extracts the equipment information of the logic volume lv of the real-time system, and mounts the directory of the logic storage equipment to the local according to the mounting path.
Therefore, each real-time system acquires the equipment information file from the memory of the appointed address, so that the logical volume lv of the real-time system is correctly accessed.
In this embodiment, the logical volume lv is accessed based on the NFS access protocol, and the NFS access protocol is configured based on the IP address of the non-real-time system in the device information and the mount path of the logical volume lv.
Therefore, the NFS protocol provides a transparent file transmission mode, the transmission performance is good, the existing system is not changed, and the adaptation is easy. The real-time system uses the access protocol of the NFS, so that the real-time system is directly adaptive to the NFS without modification, and high-performance data transmission is realized.
And accessing the special logic volume lv of each real-time system by adopting an NFS protocol according to actual requirements based on the IP address of the non-real-time system in actual operation, and performing read-write operation on the special logic volume lv. When writing data to its logical volume lv, it is checked whether the written data amount is the total data amount after writing exceeding the space limit of the logical volume lv.
Therefore, each real-time system only accesses the exclusive logic storage device, namely the logic volume lv, on the shared physical storage device, so that the storage spaces of each real-time system are not overlapped and not influenced, and the hardware cost is saved.
In summary, in the second embodiment of the access method for the storage device of the heterogeneous system, on the shared physical storage device, the non-real-time system Linux creates a dedicated logical volume lv for each real-time system of the heterogeneous system, and each real-time system accesses the logical volume lv through the NFS protocol, so that the storage spaces of each real-time system are not overlapped and not affected each other, and the hardware cost is saved. Compared with the first access method embodiment of the heterogeneous system storage device, the preferred logical volume lv capacity management of the embodiment is flexible, is convenient for expansion, and has low maintenance cost, and the preferred adopted NFS supports various real-time systems, does not need to reform the current system again, and has good transmission performance.
An embodiment of an access apparatus for a heterogeneous system storage device according to the present invention is described below with reference to fig. 3A and 3B.
First embodiment of access device of heterogeneous system storage equipment
Fig. 3A is a schematic structural diagram of an embodiment of an access apparatus of a heterogeneous system storage device, which includes a configuration file acquiring module 2010, a first control module 2020, a second control module 2030, and a logical storage access module 2040.
A configuration file acquiring module 2010, configured to acquire a configuration file by the non-real-time system. Operation principle and advantages of the module are as follows, step 1010 in the first embodiment of the access method for the storage device of the same heterogeneous system is not described in detail here.
The first control module 2020 is used for the non-real-time system to create a logical storage device of each real-time system based on the configuration file. The operation principle and advantages of the module are as follows, step 1020 in the first embodiment of the access method for the storage device of the same heterogeneous system is not described in detail here.
The second control module 2030 is used for each real-time system to obtain the device information of each logical storage device. Operation principle and advantages of the module, step 1030 in the first embodiment of the access method for the storage device of the same heterogeneous system, are not described in detail here.
The logical storage access module 2040, which is used for each real-time system to access its own logical storage device, operates in the step 1040 in the first embodiment of the access method for the same heterogeneous system storage device, and is not described in detail here.
Second embodiment of access device of heterogeneous system storage equipment
The embodiment of the apparatus is a preferred embodiment of the apparatus embodiment, and is a Linux system, and fig. 3B shows a schematic structural diagram of the embodiment of the apparatus, which includes a profile creating module 2110, a first control module 2120, a second control module 2130, and a logical storage access module 2140.
The configuration file creating module 2110 is used for creating a configuration file by an IDE of the heterogeneous system. The operation principle and advantages of the module are the step 1110 in the embodiment of the access method of the same heterogeneous system storage device, which is not described in detail here.
The first control module 2120, which includes the following modules:
a configuration file importing module 21210, configured to import a configuration file for a non-real-time system of the heterogeneous system. Operation principle and advantages of the module, step 11210 in the embodiment of the access method of the same heterogeneous system storage device is not described in detail here.
A logical storage creation module 21220 for the non-real time systems of the heterogeneous systems to create a logical volume lv for each real time system. Operation principle and advantages of this module, step 11220 in the embodiment of the access method of the same heterogeneous system storage device will not be described in detail here.
And an access protocol first configuration module 21230, configured to configure, by the non-real-time system of the heterogeneous system, an access protocol for each logical volume lv. Operation principle and advantages of the module, step 11230 in the embodiment of the access method of the same heterogeneous system storage device, are not described in detail here.
The second control module 2130, which includes the following modules:
the device information obtaining module 21310 is configured to obtain, by each real-time system of the heterogeneous systems, device information of the logical volume lv of the real-time system. The operation principle and advantages of the module are not described in detail herein, and step 11310 in the embodiment of the access method of the same heterogeneous system storage device.
An access protocol second configuration module 21320 is configured to enable each real-time system of the heterogeneous systems to create an access protocol for accessing its logical volume lv. The operation principle and advantages of the module are not described in detail herein, and step 11320 in the embodiment of the access method of the same heterogeneous system storage device.
The logical storage access module 2140 is configured to enable each real-time system of the heterogeneous systems to access the logical volume lv thereof. Step 1140 in the embodiment of the access method for the same heterogeneous system storage device, which is not described in detail herein.
In summary, in an embodiment of the second access apparatus for a storage device of a heterogeneous system, on a shared physical storage device, the non-real-time system Linux creates a dedicated logical volume lv for each real-time system of the heterogeneous system, and each real-time system accesses the logical volume lv through the NFS protocol, so that storage spaces of each real-time system are not overlapped and not affected each other, and hardware cost is saved. Compared with the first embodiment of the access device of the heterogeneous system storage device, the logical storage device of this embodiment adopts the preferred logical volume lv scheme, the capacity management is flexible, the expansion is convenient, the maintenance cost is low, the access protocol of the logical volume lv adopts the preferred NFS protocol, the current system does not need to be reconstructed, and the transmission performance is good.
[ calculating device ]
The invention also provides a computing device, which is described in detail in the following fig. 4.
The computing device 400 includes a processor 410, a memory 420, a communication interface 430, and a bus 440.
It should be appreciated that the communication interface 430 in the computing device 400 shown in this figure may be used to communicate with other devices.
The processor 410 may be coupled to the memory 420. The memory 420 may be used to store the program codes and data. Therefore, the memory 420 may be a storage unit inside the processor 410, an external storage unit independent of the processor 410, or a component including a storage unit inside the processor 410 and an external storage unit independent of the processor 410.
Optionally, computing device 400 may also include a bus 440. The memory 420 and the communication interface 430 may be connected to the processor 410 through a bus 440. The bus 440 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 440 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one line is shown, but this does not represent only one bus or one type of bus.
It should be understood that, in the embodiment of the present invention, the processor 410 may adopt a Central Processing Unit (CPU). The processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. Or the processor 410 may employ one or more integrated circuits for executing related programs to implement the technical solutions provided by the embodiments of the present invention.
The memory 420 may include a read-only memory and a random access memory, and provides instructions and data to the processor 410. A portion of the processor 410 may also include non-volatile random access memory. For example, the processor 410 may also store information of the device type.
When the computing device 400 is running, the processor 410 executes the computer-executable instructions in the memory 420 to perform the operational steps of an embodiment of the method.
It should be understood that the computing device 400 according to the embodiment of the present invention may correspond to a corresponding main body for executing the method according to the embodiments of the present invention, and the above and other operations and/or functions of each module in the computing device 400 are respectively for implementing corresponding flows of each method of the embodiment, and are not described herein again for brevity.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. The storage medium includes various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
[ computational Medium ]
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, is configured to perform the operational steps of the method embodiments.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in more detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention.
Claims (10)
1. A method for accessing a storage device of a heterogeneous system, the heterogeneous system comprising a real-time system and a non-real-time system,
the non-real-time system creates logic storage equipment of each real-time system on common physical storage equipment for each real-time system according to the configuration file; the configuration file comprises configuration parameters defining a logic storage device of each real-time system in the heterogeneous system;
and each real-time system acquires the information of the logic storage equipment created for the non-real-time system, and accesses the logic storage equipment of the non-real-time system according to the information.
2. The method according to claim 1, wherein the configuration file specifically comprises: configuring a script file and an equipment information file for acquiring configured logic storage equipment information by the real-time system; and the configuration script file comprises configuration parameters of logic storage equipment of each real-time system in the defined heterogeneous system.
3. The method of claim 2, wherein the non-real-time system creates a logical storage device of each real-time system on a common physical storage device for each real-time system according to the configuration file, comprising:
the non-real-time system runs the configuration script file, creates logic storage equipment of each real-time system on common physical storage equipment for each real-time system according to configuration parameters, and stores the equipment information file to a specified memory address;
each real-time system acquires the logic storage device information created for the non-real-time system, and the method comprises the following steps:
and each implementation system acquires the equipment information file on the memory address and acquires the logic storage equipment information according to the equipment information file.
4. The method of claim 3, wherein the configuration script file further comprises: a logical storage device mount path; the device information file includes: the IP address of the non-real-time system and the mounting path of the logic storage equipment;
after the non-real-time system creates the logic storage device of each real-time system on the common physical storage device for each real-time system according to the configuration parameters, the method further comprises the following steps: mounting the created logic storage equipment of each real-time system to the logic storage equipment mounting path;
each real-time system acquires the logic storage device information according to the device information file, and the method comprises the following steps: and each real-time system communicates with the non-real-time system according to the IP address of the non-real-time system, and mounts the directory of the logic storage equipment to the local according to the mounting path of the logic storage equipment.
5. The method of any one of claims 1 to 4, wherein the real-time system accesses its logical storage device using a protocol agreed upon with non-real-time systems.
6. The method of any of claims 1 to 4, wherein the non-real-time system obtains the configuration file of an integrated development environment side configuration.
7. The method according to any one of claims 1 to 4, wherein the configuration parameters include a required storage space size for each real-time system;
the non-real-time system creates a logic storage device of each real-time system on a common physical storage device for each real-time system according to the configuration file, and the method comprises the following steps: the non-real-time system acquires the size of the storage space required by each real-time system according to the configuration file, and creates a logic storage device with a corresponding size.
8. An access device for a storage device of a heterogeneous system, the heterogeneous system comprising a real-time system and a non-real-time system,
the first control module is used for controlling the non-real-time system to establish logic storage equipment of each real-time system on common physical storage equipment for each real-time system according to the configuration file; the configuration file comprises configuration parameters defining a logic storage device of each real-time system in the heterogeneous system;
the second control module is used for controlling each real-time system to acquire the logic storage equipment information created for the non-real-time system;
and the logic storage access module is used for accessing the logic storage equipment of each real-time system according to the logic storage equipment information of each real-time system.
9. A computing device, comprising,
a bus;
a communication interface connected to the bus;
at least one processor coupled to the bus; and
at least one memory coupled to the bus and storing program instructions that, when executed by the at least one processor, cause the at least one processor to perform the method of any of claims 1 to 7.
10. A computer-readable storage medium having stored thereon program instructions, which, when executed by a computer, cause the computer to perform the method of any of claims 1 to 7.
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