CN111831619A - GPFS-based online data migration method and device - Google Patents

GPFS-based online data migration method and device Download PDF

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Publication number
CN111831619A
CN111831619A CN202010692440.3A CN202010692440A CN111831619A CN 111831619 A CN111831619 A CN 111831619A CN 202010692440 A CN202010692440 A CN 202010692440A CN 111831619 A CN111831619 A CN 111831619A
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gpfs
disk
nsd
module
data migration
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周立明
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Inspur Power Commercial Systems Co Ltd
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Inspur Power Commercial Systems Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/18—File system types
    • G06F16/185—Hierarchical storage management [HSM] systems, e.g. file migration or policies thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G06F16/178—Techniques for file synchronisation in file systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/18—File system types
    • G06F16/1847—File system types specifically adapted to static storage, e.g. adapted to flash memory or SSD
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
    • G06F3/0647—Migration mechanisms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device
    • G06F3/0674—Disk device
    • G06F3/0676—Magnetic disk device

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Hardware Redundancy (AREA)

Abstract

The invention discloses an online data migration method and device based on a GPFS (general purpose configuration file), wherein the method comprises the following steps: s1, adding the nodes corresponding to the all-in-one machine with the installed GPFS into the GPFS cluster; s2, editing and adding the file of the nsd disk, and making the failgroup of the nsd disk be 4; s3, adding the nsd disk to the GPFS cluster; s4, adding the nsd disk to a preset YXCACHE file system; and S5, synchronizing the data of the nsd disk and the failgroup4 disk corresponding to the all-in-one machine. Under the condition of installing and using the GPFS, the GPFS is added into a GPFS cluster for data synchronization, shutdown is not needed, data migration in a data isolated island of the client all-in-one machine can be realized on line, the risk of a server and a built-in storage bottleneck of the client all-in-one machine is reduced, the expansibility and the continuity of client services are improved, and the shutdown time of the client services is greatly reduced.

Description

GPFS-based online data migration method and device
Technical Field
The invention relates to the technical field of storage data storage migration, in particular to a GPFS (general purpose file system) -based online data migration method and device.
Background
For historical reasons, a client service system is deployed on an all-in-one machine (Pure application server), and with the operation of the system, the capacity and performance of a storage space of the all-in-one machine become bottlenecks.
The storage of the existing all-in-one machine cannot be in butt joint with the external storage, so that the data cannot be copied by using a storage copying mode. At present, some systems in the service system gradually have the risk of becoming a data island because of being very important, and customers urgently need to migrate the service system out of the all-in-one machine.
Therefore, how to migrate data in the all-in-one machine without stopping the service is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a GPFS-based online data migration method and device, which do not need to stop service, realize online data migration and reduce data migration cost.
In order to solve the above technical problem, an embodiment of the present invention provides an online data migration method based on a GPFS, including:
s1, adding the nodes corresponding to the all-in-one machine with the installed GPFS into the GPFS cluster;
s2, editing and adding the file of the nsd disk, and making the failgroup of the nsd disk be 4;
s3, adding the nsd disk to the GPFS cluster;
s4, adding the nsd disk to a preset YXCACHE file system;
and S5, synchronizing the data of the nsd disk and the failgroup4 disk corresponding to the all-in-one machine.
Wherein, after the S5, the method further comprises:
and S6, deleting the nsd disk corresponding to the all-in-one machine from the YXCACHE file system.
Wherein, after the S6, the method further comprises:
s7, modifying the configuration of the YXCACHE file system.
Wherein the type of the NSD disk is common NSD or tiebreaker disk.
Wherein, the number of all-in-one machine is one or more.
In addition, an embodiment of the present invention further provides an online data migration apparatus based on a GPFS, which is characterized by including:
the node adding module is used for adding the node corresponding to the all-in-one machine with the installed GPFS into the GPFS cluster;
the creating module is connected with the node adding module and used for starting creating work, editing files for adding the nsd disk, setting the failgroup of the nsd disk to be 4, then adding the nsd disk into the GPFS cluster, and adding the nsd disk into a preset YXCACHE file system;
and the synchronization module is connected with the creation module and used for starting synchronization operation and synchronizing data of the nsd disk and the failgroup4 disk corresponding to the all-in-one machine.
The system comprises a node adding module, a creating module and a synchronization module, wherein the node adding module is used for adding a node corresponding to the all-in-one machine into the GPFS cluster, sending a first trigger signal to the creating module, starting creating work according to the first trigger signal, sending a second trigger signal to the synchronization module by the trigger signal module after the creating work is finished, and starting the synchronization operation by the synchronization module according to the second trigger signal.
The integrated machine also comprises a deleting module connected with the synchronizing module and used for executing deleting operation after the synchronizing module completes the synchronizing operation and deleting the corresponding nsd disk stored in the YXCACHE file system in the integrated machine.
The file system also comprises a configuration information modification module connected with the deletion module, and the configuration information modification module is used for modifying the configuration of the YXCACHE file system after the deletion module completes the deletion operation.
Wherein the type of the NSD disk is common NSD or tiebreaker disk.
Compared with the prior art, the GPFS-based online data migration method and device provided by the embodiment of the invention have the following advantages:
the GPFS-based online data migration method and device provided by the embodiment of the invention are added into a GPFS cluster for data synchronization under the condition of installation and use of the GPFS, do not need shutdown, can realize data migration in a client all-in-one machine data isolated island online, reduce the risk of a client all-in-one machine server and a built-in storage bottleneck, improve the expansibility and continuity of client services and greatly reduce the shutdown time of the client services.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a GPFS-based online data migration method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart illustrating steps of a GPFS-based online data migration method according to another embodiment of the present invention;
fig. 3 is a flowchart illustrating steps of an embodiment of a GPFS-based online data migration apparatus according to the present invention;
fig. 4 is a schematic structural diagram of another embodiment of a GPFS-based online data migration apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram illustrating an embodiment of a GPFS-based online data migration method according to the present invention; fig. 2 is a schematic flowchart illustrating steps of a GPFS-based online data migration method according to another embodiment of the present invention; fig. 3 is a flowchart illustrating steps of an embodiment of a GPFS-based online data migration apparatus according to the present invention; fig. 4 is a schematic structural diagram of another embodiment of a GPFS-based online data migration apparatus according to an embodiment of the present invention.
In a specific embodiment, the GPFS-based online data migration method includes:
s1, adding the nodes corresponding to the all-in-one machine with the installed GPFS into the GPFS cluster;
s2, editing and adding the file of the nsd disk, and making the failgroup of the nsd disk be 4;
s3, adding the nsd disk to the GPFS cluster;
s4, adding the nsd disk to a preset YXCACHE file system;
and S5, synchronizing the data of the nsd disk and the failgroup4 disk corresponding to the all-in-one machine.
Under the condition of installing and using the GPFS, the GPFS is added into a GPFS cluster for data synchronization, shutdown is not needed, data migration in a data isolated island of the client all-in-one machine can be realized on line, the risk of a server and a built-in storage bottleneck of the client all-in-one machine is reduced, the expansibility and the continuity of client services are improved, and the shutdown time of the client services is greatly reduced.
In the invention, because the data migration is carried out, the data migration is not carried out by adopting a data copying mode, but a data synchronization mode is adopted to synchronize the data in the all-in-one machine into a memory outside the all-in-one machine. However, the purpose of data migration is not only to migrate the data in the original all-in-one machine without losing the data, but also to release the original storage space, so that the data storage can be continued.
The present invention does not limit the storage space releasing manner, and in order to implement the storage space releasing, data deletion may be directly performed in the all-in-one machine, but this manner is cumbersome, and there is corresponding information in the file system, so in an embodiment, after the S5, the method further includes:
and S6, deleting the nsd disk corresponding to the all-in-one machine from the YXCACHE file system.
After the information synchronization is completed and the nsd disk corresponding to the unified machine is deleted from the YXCACHE file system, an object corresponding to the configuration information in the file system is changed, but the configuration is unclear, and for convenience of management, after the S6, the method further includes:
s7, modifying the configuration of the YXCACHE file system.
The type of the NSD disk is not limited in the invention, and the type of the NSD disk is common NSD or tiebreaker disk or other NSD disks.
In addition, in the invention, because data migration is carried out from the all-in-one machine, and in a computer room, the work of carrying out data migration on a plurality of all-in-one machines simultaneously may exist, the number of the all-in-one machines is one or more.
That is, data migration can be performed only on one all-in-one machine at a time, and data migration can also be performed on a plurality of all-in-one machines at the same time.
The GPFS can realize NSD synchronous copy and redundancy of 2 failure groups in a failure groups mode.
In an embodiment, only 2 all-in-one machines are used for storage, corresponding failure groups1/2, if data need to be sent to an external SAN for storage, newly stored luns can be configured according to the size of the existing luns, added to the GPFS cluster NSDlist, configured to the failure groups4, and added to a file system. After confirming that all configurations are completed, the synchronization function is started. The data copying is completed through the Ethernet, and the disk of failure groups1/2 can be released from the file system after the copying is confirmed to be completed. Therefore, the GPFS storage is migrated to the external SVC storage (SVC virtual environment) from the Pure Application Server through the GPFS
Specifically, the method comprises the following steps:
1. adding the two nodes with the installed GPFS into the GPFS cluster;
2. looking up YXCACHE file system information;
among them, the YXCACHE file system is composed of hdisk1 and hdisk2 of GPFS _ SERVER 1.
3. Editing a file for adding an nsd disk, wherein the failed groups of the two newly added disks are 4;
4. adding an nsd disk to the GPFS cluster;
5. looking up the nsd disk, wherein the two last free disks are newly added nsd for replacing YXCACHE;
6. adding the newly added disk to the YXCACHE file system;
7. checking whether the disk is added into a YXCACHE file system or not, and finding that two disks with fail group of 4 appear;
8. deleting nsd with fail group of 1 from a YXCACHE file system;
9. manually synchronizing the data of the fail group2 and the fail group4 disks;
10. looking over the nsd again to determine whether the new disk is added into the YXCACHE file system and whether the original replaced disk becomes free disk;
11. deleting the replaced free disk;
12. replacing the disk with the fail group of 2, deleting nsd from the file system, wherein only operation is added, and the output result is the same as the previous deletion operation;
13. modifying the attribute of the file system, changing the data copy number to 1, checking the attribute of the file system, confirming that the red marking attribute is changed to 1, and after the operation of the two next file systems which are moved downwards is the same, because only one fail group remains in the disk storing the data, the configuration of the file system needs to be modified, manually modifying the nsd file of the new disk, and changing the fail group to-1;
14. and modifying the fail group attribute of the file system by using the modified file system, and viewing the modified attribute, wherein the fail group is-1 except for the storage description information of which the fail group is 3.
Through the above operations, all data of the YXCACHE file system are stored in YXCACHE _ nsd4_1 and YXCACHE _ nsd4_2, and the disk is hung on GPFS _ SERVER 1.
In addition, an embodiment of the present invention further provides an online data migration apparatus based on a GPFS, including:
the node adding module 10 is used for adding the node corresponding to the all-in-one machine with the GPFS installed into the GPFS cluster;
a creating module 20 connected to the node adding module 10, configured to start a creating work, edit a file for adding an nsd disk, and make the nsid disk failgroup be 4, then add the nsd disk to the GPFS cluster, and add the nsd disk to a preset YXCACHE file system;
and the synchronization module 30 is connected with the creation module 20 and is used for starting synchronization operation and synchronizing data of the nsd disk and the failgroup4 disk corresponding to the all-in-one machine.
Since the GPFS-based online data migration device is a device corresponding to the GPFS-based online data migration method, the GPFS-based online data migration device has the same beneficial effects, and details of the GPFS-based online data migration device are not described herein.
In order to improve data migration efficiency and reduce workload of manual operations, in an embodiment, the GPFS-based online data migration apparatus further includes a trigger signal module 40 connected to the node adding module 10, the creating module 20, and the synchronization module 30, and is configured to send a first trigger signal to the creating module 20 after the node adding module 10 adds a node corresponding to the all-in-one machine into the GPFS cluster, start the creating operation according to the first trigger signal, after the creating operation is completed, send a second trigger signal to the synchronization module 30 by the trigger signal module 40, and start the synchronization operation by the synchronization module 30 according to the second trigger signal.
Through trigger signal module 40, to the node add module 10 establish module 20 and monitor and send first trigger signal, second trigger signal for establish the module, the work that high efficiency does not stop can be realized to the synchronization module, the complicated work that has avoided the work progress of artifical detection data migration in-process individual step and formed reduces intensity of work, reduces artifical control time simultaneously, has improved work efficiency.
Furthermore, since space needs to be released after data migration is completed, in order to further improve work efficiency, in an embodiment, the GPFS-based online data migration apparatus further includes a deleting module 50 connected to the synchronization module 30, and configured to execute a deleting operation to delete the corresponding nsd disk stored in the YXCACHE file system in the all-in-one machine after the synchronization module 30 completes the synchronization operation.
After the data synchronization is finished, the disk space is automatically released, so that the automation degree of data migration is improved, and the efficiency of data migration is improved.
Furthermore, since the configuration of the corresponding GPFS is actually changed after the operations such as data migration and disk release are completed, but is not reflected in the corresponding GPFS, and correspondingly, in order to complete the automatic modification of the automatic configuration information, in an embodiment, the GPFS-based online data migration apparatus further includes a configuration information modification module 60 connected to the deletion module 50, configured to modify the configuration of the YXCACHE file system after the deletion module 50 completes the deletion operation.
The configuration information modification module and the configuration information deletion module in the invention can be modules designed by workers according to a system in advance, automatically complete operation in the data migration process, or can also be modules designed by workers for setting key parameters to realize semi-automatic operation, and the invention is not limited to this.
The similarity of the NSD disk is not limited in the invention, and the type of the NSD disk is common NSD or tiebreaker disk, or other types.
The GPFS-based online data migration method and device realize the data island migration of the online all-in-one machine to an open platform, greatly improve the expansibility and continuity of customer services and reduce the operation and maintenance difficulty.
In summary, the GPFS-based online data migration method and apparatus provided in the embodiments of the present invention, when the GPFS is installed and used, add to the GPFS cluster to perform data synchronization, do not need to be shut down, can implement data migration in a data island of a client all-in-one machine online, reduce the risk of a server and a built-in storage bottleneck of the client all-in-one machine, improve the extensibility and continuity of a client service, and greatly reduce the downtime of the client service.
The GPFS-based online data migration method and apparatus provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. An online data migration method based on GPFS is characterized by comprising the following steps:
s1, adding the nodes corresponding to the all-in-one machine with the installed GPFS into the GPFS cluster;
s2, editing and adding the file of the nsd disk, and making the failgroup of the nsd disk be 4;
s3, adding the nsd disk to the GPFS cluster;
s4, adding the nsd disk to a preset YXCACHE file system;
and S5, synchronizing the data of the nsd disk and the failgroup4 disk corresponding to the all-in-one machine.
2. The GPFS-based online data migration method according to claim 1, further comprising, after S5:
and S6, deleting the nsd disk corresponding to the all-in-one machine from the YXCACHE file system.
3. The GPFS-based online data migration method according to claim 2, further comprising, after S6:
s7, modifying the configuration of the YXCACHE file system.
4. The GPFS-based online data migration method according to claim 3, wherein the type of the NSD disk is a normal NSD or a tiebreaker disk.
5. The GPFS-based online data migration method of claim 4, wherein the number of the all-in-one machines is one or more.
6. A GPFS-based online data migration device, comprising:
the node adding module is used for adding the node corresponding to the all-in-one machine with the installed GPFS into the GPFS cluster;
the creating module is connected with the node adding module and used for starting creating work, editing files for adding the nsd disk, setting the failgroup of the nsd disk to be 4, then adding the nsd disk into the GPFS cluster, and adding the nsd disk into a preset YXCACHE file system;
and the synchronization module is connected with the creation module and used for starting synchronization operation and synchronizing data of the nsd disk and the failgroup4 disk corresponding to the all-in-one machine.
7. The GPFS-based online data migration apparatus according to claim 6, further comprising a trigger signal module connected to the node adding module, the creating module, and the synchronization module, and configured to send a first trigger signal to the creating module after the node adding module adds the node corresponding to the all-in-one machine to the GPFS cluster, start the creating work according to the first trigger signal, and after the creating work is completed, the trigger signal module sends a second trigger signal to the synchronization module, and the synchronization module starts the synchronization operation according to the second trigger signal.
8. The GPFS-based online data migration apparatus according to claim 7, further comprising a deletion module connected to the synchronization module, configured to execute a deletion operation to delete the corresponding nsd disk stored in the YXCACHE file system in the all-in-one machine after the synchronization module completes the synchronization operation.
9. The GPFS-based online data migration apparatus according to claim 8, further comprising a configuration information modification module, coupled to the deletion module, for modifying, at the deletion module, the configuration of the YXCACHE file system after the deletion module completes a deletion operation.
10. The GPFS-based online data migration apparatus according to claim 9, wherein the type of the NSD disk is a normal NSD or a tiebreaker disk.
CN202010692440.3A 2020-07-17 2020-07-17 GPFS-based online data migration method and device Pending CN111831619A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110502489A (en) * 2019-08-29 2019-11-26 浪潮商用机器有限公司 A kind of GPFS storage replacement method, device and electronic equipment and storage medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110502489A (en) * 2019-08-29 2019-11-26 浪潮商用机器有限公司 A kind of GPFS storage replacement method, device and electronic equipment and storage medium

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