CN111475104A - Storage device data online migration method, system, terminal and storage medium - Google Patents
Storage device data online migration method, system, terminal and storage medium Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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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
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
Abstract
The invention provides a method, a system, a terminal and a storage medium for online migration of storage equipment data, wherein the method comprises the following steps: backing up the back-end storage data of the operating system to be migrated; unbinding the volume of the operating system to be migrated from the original storage equipment by setting an FC port of the original storage equipment and mapping the volume of the operating system to be migrated to target storage equipment; mapping the volume migrated to the target storage device to an operating system of the target storage device by scanning for external storage; transferring the multipath software of the operating system to be migrated and configuring the operating system of the target storage device; and migrating the backup data from the original storage equipment to the target storage equipment. The invention can realize the online migration of data among the storage devices, can realize the non-downtime in the data migration process, and can not cause the data loss.
Description
Technical Field
The invention relates to the technical field of storage management, in particular to a method, a system, a terminal and a storage medium for online migration of storage equipment data.
Background
The risk involved in data migration is very high, especially for old storage, such as old storage more than 10 years ago, performance is poor, stability is poor, and capacity expansion is poor, storage more than 10 years ago is FC 1G 2G, disks are all 400G and 200G, and the number of supportable hard disks is not more than 500 at most. While the upper layer applications all use Oracle rac or Mysql cluster applications. Therefore, the capacity of the old data center needs to be expanded, new storage needs to be used, and the deployment application of the new storage needs to seamlessly migrate the data in the old storage device to the new storage, so that careful deployment and analysis are needed for migration work, any fault and downtime in migration are prevented, any fault and downtime in migration need to be processed in time, and data loss is prevented.
Disclosure of Invention
In view of the foregoing defects in the prior art, the present invention provides a method, a system, a terminal and a storage medium for online migration of data of a storage device, so as to solve the above technical problems.
In a first aspect, the present invention provides a method for online migrating data in a storage device, including:
backing up the back-end storage data of the operating system to be migrated;
unbinding the volume of the operating system to be migrated from the original storage equipment by setting an FC port of the original storage equipment and mapping the volume of the operating system to be migrated to target storage equipment;
mapping the volume migrated to the target storage device to an operating system of the target storage device by scanning for external storage;
transferring the multipath software of the operating system to be migrated and configuring the operating system of the target storage device;
and migrating the backup data from the original storage equipment to the target storage equipment.
Further, the unbinding the volume of the operating system to be migrated from the original storage device and mapping the volume of the operating system to be migrated to the target storage device by setting an FC port of the original storage device includes:
setting an FC port of a target storage device and an FC port of an original storage device in the same ZONE at a switch end;
unbinding the volume of the operating system to be migrated from the original storage device;
and mapping and binding the volume to the FC port of the target storage device by modifying the FC port parameter of the original storage device according to the FC port information of the target storage device.
Further, the mapping the volume migrated to the target storage device to the operating system of the target storage device by scanning the foreign storage includes:
establishing a corresponding host operating system of the target storage device, and setting the attribute of the host operating system;
controlling an operating system of a target storage device to scan for external storage;
mapping the scanned volume to the operating system.
Further, the transferring the multipath software of the operating system to be migrated and configuring the operating system of the target storage device includes:
unloading multipath software of the original storage equipment;
installing multipath software in an operating system of a target storage device;
an operating system of the target storage device is configured.
In a second aspect, the present invention provides a storage device data online migration system, including:
the data backup unit is configured to backup the back-end storage data of the operating system to be migrated;
the port setting unit is configured to unbind the volume of the operating system to be migrated from the original storage device and map the volume of the operating system to be migrated to the target storage device by setting an FC port of the original storage device;
a storage scanning unit configured to map the volume migrated to the target storage device to an operating system of the target storage device by scanning for external storage;
the software setting unit is used for transferring the multipath software of the operating system to be migrated and configuring the operating system of the target storage device;
and the data migration unit is configured to migrate the backup data from the original storage device to the target storage device.
Further, the port setting unit includes:
the ZONE setting module is configured to set the FC port of the target storage device and the FC port of the original storage device in the same ZONE at a switch end;
the port unbinding module is configured to unbind the volume of the operating system to be migrated from the original storage device;
and the target binding module is configured to map and bind the volume to the FC port of the target storage device by modifying the FC port parameter of the original storage device according to the FC port information of the target storage device.
Further, the storage scan unit includes:
the host establishing module is used for configuring a corresponding host operating system for establishing the target storage equipment and setting the attribute of the host operating system;
a storage scanning module configured to control an operating system of a target storage device to scan for external storage;
a mapping setup module configured to map the scanned volume to the operating system.
Further, the software setting unit includes:
the software unloading module is configured for unloading multipath software of the original storage equipment;
the software installation module is configured for installing multipath software on an operating system of the target storage device;
a system configuration module configured to configure an operating system of the target storage device.
In a third aspect, a terminal is provided, including:
a processor, a memory, wherein,
the memory is used for storing a computer program which,
the processor is used for calling and running the computer program from the memory so as to make the terminal execute the method of the terminal.
In a fourth aspect, a computer storage medium is provided having stored therein instructions that, when executed on a computer, cause the computer to perform the method of the above aspects.
The beneficial effect of the invention is that,
according to the storage device data online migration method, the system, the terminal and the storage medium, the data to be migrated are backed up firstly, then the mapping relation between the volume and the storage device is changed, the multipath software is changed, the operating system of the target storage device is configured, and then the backed-up data is migrated to the target storage device. The invention can realize the online migration of data among the storage devices, can realize the non-downtime in the data migration process, and can not cause the data loss.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method of one embodiment of the invention.
FIG. 2 is a schematic block diagram of a system of one embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1 is a schematic flow diagram of a method of one embodiment of the invention. The execution subject in fig. 1 may be a storage device data online migration system.
As shown in fig. 1, the method 100 includes:
In order to facilitate understanding of the present invention, the principle of the online migration method of the storage device data of the present invention is combined with the online migration process of the storage device data in the embodiment to further describe the online migration method of the storage device data provided by the present invention.
Specifically, the storage device data online migration method includes:
and S1, backing up the back-end storage data of the operating system to be migrated.
The preparation work is well done, which comprises planning VSAN on a switch in advance according to requirements, forming a VSAN planning table, counting the names of system hosts to be migrated, port numbers of HBA cards, VSAN and Zone (Zone functions are similar to V L AN functions on Ethernet switches), which are information of devices (hosts and storage) connected in SAN networks, logically dividing the devices into different areas, so that the devices in different areas cannot be accessed directly by FC networks, thereby realizing mutual isolation between the devices in the networks, forming a detailed planning table, counting FC port numbers (FC, Fibre Channel, mesh Channel technology, which is originally applied to SAN (storage area network) at the end of old storage devices, wherein AN FC interface is in a standard form of optical fiber butt joint, forming other common types of ST, SC, L C, MTRJ FC, and the like in 1988, developing the earliest is used for improving the transmission bandwidth of protocols, and efficiently retransmitting data of the side of the protocol, forming a VSAN planning table, and counting all the information of the devices (hosts and storage) at the end of the SAN (storage area network), and forming a temporary storage network operation table, wherein the old storage devices are in a temporary storage environment, and the VSAN management table is used for obtaining a large-scale service migration.
And backing up data to be stored at the back end of a system (such as a windows host) migrated from an original storage device (an old storage device, which is close to the service life and needs to be replaced), and confirming the complete backup of the data and the integrity and consistency of the backed-up data.
S2, unbinding the volume of the operating system to be migrated from the original storage device by setting an FC port of the original storage device, and mapping the volume of the operating system to be migrated to the target storage device.
And dividing the FC port of the corresponding new storage device (target storage device) into the same Zone of the operating system host which finishes data backup at the switch end. The old storage equipment terminal unbinds the volume bound to the original host; (no operation can be performed from the upper application side); modifying parameters of FC ports of the old storage equipment end; creating a host at the new storage equipment end, and setting host attributes; the old storage device remaps the unbound volume to the new storage port and binds (such as Mapping and masking); the new storage equipment terminal takes over the external volume of the old storage equipment (in an Import form); and the new storage equipment terminal remaps the volume of the old storage equipment terminal after taking over to the operating system of the new storage equipment.
And S3, mapping the volume migrated to the target storage device to the operating system of the target storage device by scanning the external storage.
Scanning external storage is carried out at the upper host application system end, and the result is as follows: the volume information mapped by the new storage device end is not found, and the result is two: normally discovering volume information mapped by a new storage device end; in the case of result one: searching a reason; and a second result is a normal condition, and the verification work is as follows: the volume of the old storage device end which is taken over by the new storage device is remapped to the upper host system, the volume is completely a capacity volume rather than an empty volume, and the volume cannot be mapped unless the volume is originally an empty volume. And verifying and recording the number, the total capacity and the actual usage of the volume after the volume is taken over by the new storage device.
S4, transferring the multipath software of the operating system to be migrated and configuring the operating system of the target storage device.
The method comprises the steps that multi-path software corresponding to a host system of an old storage device by an upper-layer host application (such as Powpath and UltraPath software is loaded into L inux operating system in the form of kernel modules and is registered as a virtual device in the operating system), the multi-path software can enable an application server and the storage system to communicate in an optimal path, the unloading is ensured to be successful, and the multi-path software is generally restarted.
And S5, migrating the backup data from the original storage device to the target storage device.
And starting data migration work at the new storage end, and when the data migration is completed, performing the work of completing the data migration at the new storage equipment end, wherein the upper-layer application corresponding to the new storage equipment is normally available, the data is complete, and the migration is successful.
In the process of step S4 or step S5, a task problem occurs, and the backup data is immediately restored, and the restoration method is as follows:
the method comprises the steps of unloading multipath software of a new storage device, unbinding the volume to the new storage device at an old storage device end, modifying FC port parameters bound at the old storage device end, rebinding the unbound volume to an upper application system at the old storage device end, installing multipath software (such as popup) of the old storage device in the upper application system, and starting the upper application system.
As shown in fig. 2, the system 200 includes:
the data backup unit 210 is configured to backup the back-end storage data of the operating system to be migrated;
a port setting unit 220, configured to unbind the volume of the operating system to be migrated from the original storage device and map the volume of the operating system to be migrated to a target storage device by setting an FC port of the original storage device;
a storage scanning unit 230 configured to map the volume migrated to the target storage device to an operating system of the target storage device by scanning for external storage;
a software setting unit 240 configured to transfer the multipath software of the operating system to be migrated and configure the operating system of the target storage device;
and a data migration unit 250 configured to migrate the backup data from the original storage device to the target storage device.
Optionally, as an embodiment of the present invention, the port setting unit includes:
the ZONE setting module is configured to set the FC port of the target storage device and the FC port of the original storage device in the same ZONE at a switch end;
the port unbinding module is configured to unbind the volume of the operating system to be migrated from the original storage device;
and the target binding module is configured to map and bind the volume to the FC port of the target storage device by modifying the FC port parameter of the original storage device according to the FC port information of the target storage device.
Optionally, as an embodiment of the present invention, the storage scanning unit includes:
the host establishing module is used for configuring a corresponding host operating system for establishing the target storage equipment and setting the attribute of the host operating system;
a storage scanning module configured to control an operating system of a target storage device to scan for external storage;
a mapping setup module configured to map the scanned volume to the operating system.
Optionally, as an embodiment of the present invention, the software setting unit includes:
the software unloading module is configured for unloading multipath software of the original storage equipment;
the software installation module is configured for installing multipath software on an operating system of the target storage device;
a system configuration module configured to configure an operating system of the target storage device.
Fig. 3 is a schematic structural diagram of a terminal system 300 according to an embodiment of the present invention, where the terminal system 300 may be used to execute the method for migrating data of a storage device according to the embodiment of the present invention online.
The terminal system 300 may include: a processor 310, a memory 320, and a communication unit 330. The components communicate via one or more buses, and those skilled in the art will appreciate that the architecture of the servers shown in the figures is not intended to be limiting, and may be a bus architecture, a star architecture, a combination of more or less components than those shown, or a different arrangement of components.
The memory 320 may be used for storing instructions executed by the processor 310, and the memory 320 may be implemented by any type of volatile or non-volatile storage terminal or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The executable instructions in memory 320, when executed by processor 310, enable terminal 300 to perform some or all of the steps in the method embodiments described below.
The processor 310 is a control center of the storage terminal, connects various parts of the entire electronic terminal using various interfaces and lines, and performs various functions of the electronic terminal and/or processes data by operating or executing software programs and/or modules stored in the memory 320 and calling data stored in the memory. The processor may be composed of an Integrated Circuit (IC), for example, a single packaged IC, or a plurality of packaged ICs connected with the same or different functions. For example, the processor 310 may include only a Central Processing Unit (CPU). In the embodiment of the present invention, the CPU may be a single operation core, or may include multiple operation cores.
A communication unit 330, configured to establish a communication channel so that the storage terminal can communicate with other terminals. And receiving user data sent by other terminals or sending the user data to other terminals.
The present invention also provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments provided by the present invention when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).
Therefore, the method and the device change the multipath software and configure the operating system of the target storage device by backing up the data to be migrated firstly, then changing the mapping relation between the volume and the storage device, and then migrating the backed-up data to the target storage device. The invention can realize the online migration of data among the storage devices, can realize that the data migration process is not down, and can not cause data loss.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied in the form of a software product, where the computer software product is stored in a storage medium, 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, and the like, and the storage medium can store program codes, and includes instructions for enabling a computer terminal (which may be a personal computer, a server, or a second terminal, a network terminal, and the like) to perform all or part of the steps of the method in the embodiments of the present invention.
The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.
In the embodiments provided in the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional 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, systems 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.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for online migration of data in a storage device is characterized by comprising the following steps:
backing up the back-end storage data of the operating system to be migrated;
unbinding the volume of the operating system to be migrated from the original storage equipment by setting an FC port of the original storage equipment and mapping the volume of the operating system to be migrated to target storage equipment;
mapping the volume migrated to the target storage device to an operating system of the target storage device by scanning for external storage;
transferring the multipath software of the operating system to be migrated and configuring the operating system of the target storage device;
and migrating the backup data from the original storage equipment to the target storage equipment.
2. The method according to claim 1, wherein the unbinding the volume of the operating system to be migrated from the original storage device and mapping the volume of the operating system to be migrated to the target storage device by setting an FC port of the original storage device comprises:
setting an FC port of a target storage device and an FC port of an original storage device in the same ZONE at a switch end;
unbinding the volume of the operating system to be migrated from the original storage device;
and mapping and binding the volume to the FC port of the target storage device by modifying the FC port parameter of the original storage device according to the FC port information of the target storage device.
3. The method of claim 1, wherein mapping the volume migrated to the target storage device to the operating system of the target storage device by scanning for foreign storage comprises:
establishing a corresponding host operating system of the target storage device, and setting the attribute of the host operating system;
controlling an operating system of a target storage device to scan for external storage;
mapping the scanned volume to the operating system.
4. The method of claim 1, wherein transferring multipath software of the operating system to be migrated and configuring the operating system of the target storage device comprises:
unloading multipath software of the original storage equipment;
installing multipath software in an operating system of a target storage device;
an operating system of the target storage device is configured.
5. A storage device data online migration system, comprising:
the data backup unit is configured to backup the back-end storage data of the operating system to be migrated;
the port setting unit is configured to unbind the volume of the operating system to be migrated from the original storage device and map the volume of the operating system to be migrated to the target storage device by setting an FC port of the original storage device;
a storage scanning unit configured to map the volume migrated to the target storage device to an operating system of the target storage device by scanning for external storage;
the software setting unit is used for transferring the multipath software of the operating system to be migrated and configuring the operating system of the target storage device;
and the data migration unit is configured to migrate the backup data from the original storage device to the target storage device.
6. The system according to claim 5, wherein the port setting unit includes:
the ZONE setting module is configured to set the FC port of the target storage device and the FC port of the original storage device in the same ZONE at a switch end;
the port unbinding module is configured to unbind the volume of the operating system to be migrated from the original storage device;
and the target binding module is configured to map and bind the volume to the FC port of the target storage device by modifying the FC port parameter of the original storage device according to the FC port information of the target storage device.
7. The system of claim 5, wherein the storage scanning unit comprises:
the host establishing module is used for configuring a corresponding host operating system for establishing the target storage equipment and setting the attribute of the host operating system;
a storage scanning module configured to control an operating system of a target storage device to scan for external storage;
a mapping setup module configured to map the scanned volume to the operating system.
8. The system of claim 5, wherein the software setup unit comprises:
the software unloading module is configured for unloading multipath software of the original storage equipment;
the software installation module is configured for installing multipath software on an operating system of the target storage device;
a system configuration module configured to configure an operating system of the target storage device.
9. A terminal, comprising:
a processor;
a memory for storing instructions for execution by the processor;
wherein the processor is configured to perform the method of any one of claims 1-4.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-4.
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| CN114301775A (en) * | 2021-12-31 | 2022-04-08 | 中国联合网络通信集团有限公司 | Inventory business nano-management method and device and computer readable storage medium |
| CN117389713A (en) * | 2023-12-13 | 2024-01-12 | 苏州元脑智能科技有限公司 | Storage system application service data migration method, device, equipment and medium |
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