CN107608633B - Storage management method and related device for storage equipment - Google Patents
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Abstract
The invention discloses a storage management method and a related device of a storage device, wherein the method comprises the following steps: reading configuration information stored in a metadata area of the storage equipment in the online process of the storage equipment, and judging whether the read disk array information of the storage equipment exists in a configuration file of a system or not, wherein the storage equipment is internally divided into the metadata area for storing the configuration information of the storage equipment; and if not, the storage equipment is online by a third party entity to manage the storage equipment. The storage management method and the related device of the storage equipment store the configuration information of the storage equipment in the metadata area of the storage equipment, and the storage equipment can be online and stored and managed according to the configuration information stored in the metadata area of the storage equipment when the storage equipment is online in the system, so that the defects in the prior art are overcome. The invention also discloses a computer readable storage medium.
Description
Technical Field
The present invention relates to the field of storage technologies, and in particular, to a storage management method for a storage device and a related apparatus. The invention also relates to a computer-readable storage medium.
Background
In the current information age, data is an important resource, so that ensuring that data stored by customers is not lost is the most fundamental requirement for storage devices produced by storage vendors.
For a storage device such as a hard disk, if the storage device has a controller failure, a system disk is damaged, or configuration information is deleted by mistake, even if data stored in the storage device is still intact, the data cannot be accessed normally because the required configuration information cannot be acquired.
Disclosure of Invention
The invention aims to provide a storage management method and a storage management device of a storage device, which realize the management of the storage device by using a third party to provide an upper line and overcome the defects in the prior art. The invention also provides a computer readable storage medium.
In order to achieve the purpose, the invention provides the following technical scheme:
a storage management method for a storage device, comprising:
reading configuration information stored in a metadata area of a storage device in an online process of the storage device, and judging whether the read disk array information of the storage device exists in a configuration file of a system, wherein the storage device is internally divided into the metadata area for storing the configuration information of the storage device;
and if not, the storage equipment is online by a third party entity, and the storage equipment is managed.
Optionally, bringing the storage device online as a third party entity includes:
the disk array of the storage device is brought online;
after the disk array of the storage equipment is successfully online, the storage pool to which the disk array belongs is online;
and after the line is successfully established in the storage pool of the storage device, establishing a line of the logic unit to which the storage pool belongs.
Optionally, bringing the disk array of the storage device online comprises:
and checking whether the disk array name of the storage equipment conflicts with the existing disk array name of the system, and if so, changing the disk array name of the storage equipment.
Optionally, the online of the storage pool of the storage device comprises:
checking whether the name of the storage pool of the storage device conflicts with the name of the storage pool already contained in the system, and if so, changing the name of the storage pool of the storage device;
bringing the logical unit of the storage device online comprises:
and checking whether the name of the logic unit of the storage equipment conflicts with the name of the logic unit contained in the system, and if so, changing the name of the logic unit of the storage equipment.
Optionally, after the disk array of the storage device is successfully online, if the disk array of the storage device can normally read and write data, displaying original information of the disk array and the logic unit corresponding to the storage device according to the configuration information read from the metadata area of the storage device.
A storage device storage management apparatus, comprising:
the reading module is used for reading configuration information stored in a metadata area of the storage device in the online process of the storage device and judging whether the read disk array information of the storage device exists in a configuration file of a system or not, wherein the metadata area for storing the configuration information of the storage device is divided in the storage device;
and the online module is used for online managing the storage equipment by using a third party entity if the read disk array information of the storage equipment does not exist in the configuration file of the system.
Optionally, the online module is specifically configured to:
the disk array of the storage device is brought online;
after the disk array of the storage equipment is successfully online, the storage pool to which the disk array belongs is online;
and after the line is successfully established in the storage pool of the storage device, establishing a line of the logic unit to which the storage pool belongs.
Optionally, the system further includes a display management module, configured to display original information on the disk array and the logic unit corresponding to the storage device according to configuration information read from the metadata area of the storage device if the disk array of the storage device can read and write data normally after the disk array of the storage device is successfully online.
A storage device storage management apparatus, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the storage device storage management method as described above when executing the computer program.
A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a storage management method as described above.
According to the technical scheme, in the storage device storage management method and the related device, in the on-line process of the storage device, the configuration information stored in the metadata area of the storage device is read, whether the read disk array information of the storage device exists in the configuration file of the system is judged, and the metadata area for storing the configuration information of the storage device is divided in the storage device; and if not, the storage equipment is online by a third party entity to manage the storage equipment.
The storage management method and the related device of the storage equipment store the configuration information of the storage equipment in the metadata area of the storage equipment, and the storage equipment can be online and managed according to the configuration information stored in the metadata area of the storage equipment when the storage equipment is online in the system. When the conditions that the system disk of the storage device is damaged or the configuration information is deleted and the like are met, the storage device can be managed on the system by a third party, so that the defects in the prior art are overcome.
The present invention also provides a computer-readable storage medium on which a computer program stored is capable of achieving the technical effects as described above when executed.
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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a storage management method of a storage device according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a system IO stack in an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a process of bringing a storage device online as a third party entity according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a storage management apparatus for a storage device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another storage management apparatus for a storage device 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.
Referring to fig. 1, a storage management method of a storage device according to an embodiment of the present invention includes:
s10: in the online process of the storage device, reading configuration information stored in a metadata area of the storage device, and judging whether the read disk array information of the storage device exists in a configuration file of a system, wherein the storage device is divided into metadata areas for storing the configuration information of the storage device.
In the method, a metadata area for storing the configuration information of the storage device is divided in the storage device, and the configuration information of the storage device is stored in the metadata area.
Specifically, referring to fig. 2, in the method, the IO stack of the system includes, from top to bottom, a logic unit layer 22, a disk array layer 21, and a driver layer 20, where a storage pool layer 23 runs through the three layers.
Accordingly, the configuration information of the storage device includes a drive configuration file, a disk array configuration file, a storage pool configuration file, and a logical unit configuration file.
Exemplary, among others, the drive profile includes: unique drive identifiers (UUIDs), IDs, manufacturers, types (e.g., SAS, SATA, or SSD), capacities, unique identifiers for a home array of Disks (RAID), etc.
The configuration file of the disk array comprises: the unique identification code of the disk array, ID, name, type, capacity, creation time, number of owned hard disks and unique identification code of each hard disk, stripe size, unique identification code of the home storage pool, information of the logical units contained, etc.
The configuration file for the storage pool includes: unique identification of the storage pool, ID, name, capacity, creation time, owned disk array, and unique identification of the logical unit, etc.
The configuration file of the logic unit comprises: the unique identification code of the logical unit, ID, name, type, capacity, creation time, unique identification code of the attached disk array and the capacity allocated on that disk array, unique identification code of the attached storage pool, etc.
These configuration information for the storage device is stored in the metadata area of the storage device and is redundant with the corresponding configuration files stored in the system disk. After the storage device is inserted into a system to be online, scanning a metadata area of the storage device in the online process of the storage device in the system, and reading configuration information stored in the metadata area of the storage device. According to the read disk array information of the storage device, whether the same disk array information exists or not is checked in the configuration file of the system. If yes, the system is indicated to contain the configuration file of the storage device, and the storage device can be directly subjected to storage management, data access and the like in the system.
If not, the flow proceeds to step S11,
s11: and the storage equipment is on-line by a third party entity, and the storage equipment is managed.
And according to the configuration information read from the storage device, creating a corresponding object for the storage device in a system memory.
The method specifically comprises the following steps:
s110: and the disk array of the storage device is put on line.
In the specific implementation, in this step, it is first checked whether the disk array name of the storage device conflicts with the existing disk array name of the system, and if so, the disk array name of the storage device is changed. Therefore, the method of the embodiment can automatically check whether the disk array name conflict exists in the online process of the storage device, and automatically solve the problem of the name conflict.
For example, in one processing mode, when it is checked that the disk array name of the storage device conflicts with the name of the existing disk array of the system, the disk array name of the storage device may be added with a confllict suffix.
In addition, in a preferred embodiment, after the disk array of the storage device is successfully online, if the disk array of the storage device can normally read and write data, the disk array and the logic unit corresponding to the storage device display original information according to the configuration information read from the metadata area of the storage device.
The state of the storage device may be a normal state, a defective state or a fault state, where the normal state refers to that the disk array can read and write data normally, and faults such as a bad disk and a disk drop do not occur; the defect state means that the disk array is damaged or a hard disk is missed, but data can be read and written normally; the failure state refers to that the disk array is damaged or two or more hard disks are missed, and data cannot be read and written normally at the moment. For a third-party storage device, when the storage device is online, the storage device is added into a storage pool named Unkown by a system, the storage pool belongs to disk arrays which are sequentially named Unkown-1, Unkown-2 and …, and the logical unit names on the storage device are sequentially named Unkown-1, Unkown-2 and …, so that data reading and writing are inconvenient. Therefore, in the method, if the disk array of the online storage device can read and write data normally, the disk array and the logic unit corresponding to the storage device can display the original name according to the configuration information read from the metadata area of the storage device, and the state of the storage device can be correspondingly displayed at the same time.
S111: and after the disk array of the storage equipment is successfully online, the storage pool to which the disk array belongs is online.
Preferably, in this step, when the storage pool to which the disk array of the storage device belongs is online, it is first checked whether the name of the storage pool of the storage device conflicts with the name of the storage pool already included in the system, and if yes, the name of the storage pool of the storage device is changed. Therefore, the method of the embodiment can automatically check whether the storage pool name conflict exists in the online process of the storage device and automatically solve the name conflict problem.
S112: and after the line is successfully established in the storage pool of the storage device, establishing a line of the logic unit to which the storage pool belongs.
Preferably, in the process of online the logical unit to which the storage device pool belongs, it is first checked whether the logical unit name of the storage device conflicts with the name of the logical unit already included in the system, and if yes, the logical unit name of the storage device is changed. Therefore, the method of the embodiment can automatically check whether the name conflict of the logical unit exists in the online process of the storage device and automatically solve the problem of the name conflict.
It can be seen that, in the storage management method for the storage device according to this embodiment, the configuration information of the storage device itself is stored in the metadata area of the storage device, and when the storage device is online in the system, the storage device can be online according to the configuration information stored in the metadata area of the storage device, and storage management is performed on the storage device. When the conditions that the system disk of the storage device is damaged or the configuration information is deleted and the like are met, the storage device can be managed on the system by a third party, so that the defects in the prior art are overcome.
In addition, the storage management method of the storage equipment can also be applied to hard disk roaming, a data disk or a hot spare disk can be unplugged from the system A, and read data can be inserted into the system B. Based on the method, remote data copying can be realized, if large-capacity data is copied remotely, a large amount of time is consumed for transmission through a network, and the network transmission load is increased. Based on the method, the data can be copied to the local hard disk firstly, then the hard disk is inserted in a different place, and a third party is online, so that the problem of remotely copying the large-capacity data can be solved. The competitiveness of the stored product is improved.
Correspondingly, referring to fig. 4, an embodiment of the present invention further provides a storage device storage management apparatus, including:
the reading module 30 is configured to, in an online process of a storage device, read configuration information stored in a metadata area of the storage device, and determine whether the read disk array information of the storage device exists in a configuration file of a system, where the storage device is divided into metadata areas for storing configuration information of the storage device;
the online module 31 is configured to, if the read disk array information of the storage device does not exist in the configuration file of the system, bring the storage device online as a third party entity, and manage the storage device.
It can be seen that, in the storage device storage management apparatus of this embodiment, in the process of online storage of a storage device, configuration information stored in a metadata area of the storage device is read, and it is determined whether the read disk array information of the storage device exists in a configuration file of a system, and the storage device is divided into metadata areas for storing configuration information of the storage device; and if not, the storage equipment is online by a third party entity to manage the storage equipment.
The storage management device of the storage device of this embodiment stores its own configuration information in the metadata area of the storage device, and when the storage device is online in the system, the storage device can be online according to the configuration information stored in the metadata area, and the storage management is performed on the storage device. When the conditions that the system disk of the storage device is damaged or the configuration information is deleted and the like are met, the storage device can be managed on the system by a third party, so that the defects in the prior art are overcome.
In this embodiment, the online module 31 is specifically configured to:
the disk array of the storage device is brought online;
after the disk array of the storage equipment is successfully online, the storage pool to which the disk array belongs is online;
and after the line is successfully established in the storage pool of the storage device, establishing a line of the logic unit to which the storage pool belongs.
Preferably, in the process that the online module 31 brings the disk array of the storage device online, it is first checked whether the disk array name of the storage device conflicts with the existing disk array name of the system, and if yes, the disk array name of the storage device is changed. Therefore, the device of the embodiment can automatically check whether the disk array name conflict exists in the online process of the storage equipment and automatically solve the problem of the name conflict.
Preferably, when the online module 31 online the storage pool to which the disk array of the storage device belongs, it first checks whether the storage pool name of the storage device conflicts with the name of the storage pool already included in the system, and if so, changes the storage pool name of the storage device. Therefore, the device of the embodiment can automatically check whether the storage pool name conflict exists in the online process of the storage equipment and automatically solve the name conflict problem.
Preferably, the online module 31 checks whether the name of the logical unit of the storage device conflicts with the name of the logical unit already included in the system during the process of online the logical unit belonging to the storage pool of the storage device, and if yes, changes the name of the logical unit of the storage device. Therefore, the device of the embodiment can automatically check whether the name conflict of the logical unit exists in the online process of the storage equipment and automatically solve the problem of the name conflict.
In addition, in an embodiment, the apparatus further includes a display management module, configured to, after the disk array of the storage device is successfully online, if the disk array of the storage device can normally read and write data, display original information on the disk array and the logic unit corresponding to the storage device according to configuration information read from the metadata area of the storage device.
After the disk array of the storage device is successfully online, if the disk array can normally read and write data, the original names of the disk array and the logic unit corresponding to the storage device are displayed according to the configuration information read from the metadata area of the storage device, and the state of the storage device can be correspondingly displayed, so that the storage management, the data reading and writing and the like of the storage device are facilitated.
Accordingly, referring to fig. 5, another embodiment of the present invention further provides a storage device storage management apparatus, including:
a memory 40 for storing a computer program;
a processor 41 for implementing the steps of the storage management method of the storage device as described above when executing the computer program.
In the storage management apparatus for a storage device provided in this embodiment, in the process of bringing the storage device online, configuration information stored in a metadata area of the storage device is read, and it is determined whether the read disk array information of the storage device exists in a configuration file of a system, where the metadata area for storing configuration information of the storage device is divided in the storage device; and if not, the storage equipment is online by a third party entity to manage the storage equipment.
In the storage management apparatus for a storage device according to this embodiment, when the storage device is online in a system, the storage device may be online according to configuration information stored in a metadata area of the storage device, and storage management is performed on the storage device. When the conditions that the system disk of the storage device is damaged or the configuration information is deleted and the like are met, the storage device can be managed on the system by a third party, so that the defects in the prior art are overcome.
Yet another embodiment of the present invention further provides a computer-readable storage medium, having a computer program stored thereon, where the computer program, when executed by a processor, implements the steps of the storage management method for a storage device as described above.
When the computer program stored on the computer-readable storage medium is executed by the processor, the storage device can be brought online and managed according to the configuration information stored in the metadata area of the storage device when the storage device is brought online in the system. When the conditions that the system disk of the storage device is damaged or the configuration information is deleted and the like are met, the storage device can be managed on the system by a third party, so that the defects in the prior art are overcome.
In the above description of the embodiments, several technical terms involved are explained as follows:
strip: a disk array is composed of a group of hard disks, and an area which is formed by a plurality of hard disk blocks with continuous addresses and has a fixed size on each hard disk is defined as a strip.
A system disk: drive configuration information for the storage device, disk array configuration information, logical unit configuration information, storage pool configuration information, and the like.
Data disc: and the hard disk is used for storing user data and verification data in the disk array group.
The storage management method and the related apparatus for the storage device 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 (7)
1. A storage management method for a storage device, comprising:
reading configuration information stored in a metadata area of a storage device in an online process of the storage device, and judging whether the read disk array information of the storage device exists in a configuration file of a system, wherein the storage device is internally divided into the metadata area for storing the configuration information of the storage device;
if not, the storage equipment is online through a third party entity, and the storage equipment is managed;
bringing the storage device online as a third party entity comprises:
the disk array of the storage device is brought online;
after the disk array of the storage equipment is successfully online, the storage pool to which the disk array belongs is online;
after the storage pool of the storage device is successfully online, the logic unit to which the storage pool belongs is online;
bringing the disk array of the storage device online comprises: and checking whether the disk array name of the storage equipment conflicts with the existing disk array name of the system, and if so, changing the disk array name of the storage equipment.
2. The storage device storage management method of claim 1, wherein the uplinking the storage pool of storage devices comprises:
checking whether the name of the storage pool of the storage device conflicts with the name of the storage pool already contained in the system, and if so, changing the name of the storage pool of the storage device;
bringing the logical unit of the storage device online comprises:
and checking whether the name of the logic unit of the storage equipment conflicts with the name of the logic unit contained in the system, and if so, changing the name of the logic unit of the storage equipment.
3. The storage management method of the storage device according to any one of claims 1 to 2, wherein after the storage device is successfully online in the online state of the disk array of the storage device in a third party entity, if the disk array of the storage device can normally read and write data, the disk array and the logic unit corresponding to the storage device display original information according to configuration information read from a metadata area of the storage device.
4. A storage device storage management apparatus, comprising:
the reading module is used for reading configuration information stored in a metadata area of the storage device in the online process of the storage device and judging whether the read disk array information of the storage device exists in a configuration file of a system or not, wherein the metadata area for storing the configuration information of the storage device is divided in the storage device;
the online module is used for online the storage device by a third party entity and managing the storage device if the read disk array information of the storage device does not exist in a configuration file of a system;
the online module is specifically configured to:
the disk array of the storage device is brought online;
after the disk array of the storage equipment is successfully online, the storage pool to which the disk array belongs is online;
after the storage pool of the storage device is successfully online, the logic unit to which the storage pool belongs is online;
bringing the disk array of the storage device online comprises: and checking whether the disk array name of the storage equipment conflicts with the existing disk array name of the system, and if so, changing the disk array name of the storage equipment.
5. The storage management apparatus of claim 4, further comprising a display management module, configured to, after the storage device is successfully online in the online of the third party entity on the disk array of the storage device, if the disk array of the storage device can normally read and write data, display original information on the disk array and the logic unit of the corresponding storage device according to the configuration information read from the metadata area of the storage device.
6. A storage device storage management apparatus, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the storage management method of any one of claims 1 to 3 when executing said computer program.
7. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, carries out the steps of the storage device storage management method according to any one of claims 1 to 3.
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| CN110008064A (en) * | 2019-04-10 | 2019-07-12 | 苏州浪潮智能科技有限公司 | A kind of RAID restoration methods, device, equipment and medium |
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