CN104461791B - Information processing method and device - Google Patents

Abstract

The present invention provides an information processing method and processing device. The method includes: when detecting that there is a faulty member disk in a hard disk group, starting hot spare disk reconstruction, and restoring the data in the faulty member disk to In the associated hot spare disk associated with the faulty member disk; when it is detected that the associated hot spare disk is pulled out from the hot spare disk slot, an incremental data bitmap is created; when it is detected that the associated hot spare disk When the spare disk is inserted into the member disk slot, the associated hot spare disk is identified as a member disk; according to the incremental data bitmap, the incremental data is reconstructed into the member disk, wherein the The incremental data bitmap is used to record the time when the associated hot spare disk is pulled out from the hot spare disk slot until the associated hot spare disk is inserted into the member disk slot. Between moments, the storage location of the incremental data written by the host to the failed member disk.

Description

An information processing method and processing device

technical field

The present invention relates to the field of electronic technology, in particular to an information processing method and a processing device.

Background technique

In the prior art, a certain number of hard disks are grouped into RAID groups (English: Redundant Array of Independent Disks; Chinese: Redundant Array of Independent Hard Disks), and various RAID algorithms are used to improve data redundancy and read and write performance, so as to protect data and to optimize performance. When a hard disk in a RAID group fails, the data on the hard disk of the faulty member cannot be read or written, and the state of the RAID group changes from normal to degraded. At this time, the data can be restored to the hot spare disk through the RAID algorithm to restore the data The process is called refactoring. Among them, the hot spare disk is a hard disk configured in the RAID group to replace the hard disk of a failed member in time. After the reconstruction is started, the occupied hot spare disk becomes the dedicated hard disk of the RAID group. If a spare hard disk is used to replace a failed member disk in the RAID group, after the reconstruction is complete, the data will be copied from the hot spare disk to the spare disk. This data copy process is called copyback. The hot spare disk will be released by the RAID group after the copyback is complete, and each RAID group in a system consisting of multiple RAID groups is shared.

The prior art provides three reconfiguration methods: hot spare disk reconfiguration, in-place reconfiguration, and disk replacement reconfiguration. Hot spare disk reconstruction is the most basic reconstruction method. When a member disk in a RAID group fails, restore the data of the failed member hard disk to the hot spare disk through the RAID algorithm. The hot spare disk is occupied by the RAID group and temporarily replaces it. The function of the faulty member disk. After the failed member disk is replaced with a spare disk, start copyback to release the hot spare disk. In-place reconstruction first replaces the failed member disk in the RAID group with a spare disk, and then directly reconstructs the data to the spare hard disk. Disk replacement and reconstruction restore the data of the failed member hard disk in the RAID group to the hot spare disk through the RAID algorithm. The hot spare disk is occupied by the RAID group and becomes a member disk of the RAID group after the reconstruction is completed.

However, once the reconstruction of the hot spare disk is started, the copyback cannot be started until the reconstruction is completed. During the period of reconstruction and copyback, the RAID group will continue to occupy the hot spare disk, reducing the reliability of the entire array system. If a hard disk failure occurs in another RAID group in the system, a suitable hot spare disk may not be found to restore data. In-place reconstruction requires manual intervention to replace the failed member disk with a spare disk before starting the in-place reconstruction. Before the spare disk is inserted into the slot of the faulty member disk, the RAID group remains degraded, and the performance and reliability of the host services carried by it are greatly reduced. The slots of member disks will be automatically changed in the background after disk replacement and reconstruction, which is not applicable to the situation where the physical location planning of member disks in a RAID group is fixed.

Therefore, in the prior art, there is no fault handling solution that can restore the performance and reliability of the hard disk group as soon as possible without changing the physical locations of the member disks of the RAID group.

Contents of the invention

The embodiment of the present invention provides an information processing method and a processing device, and provides a fault handling scheme that can restore the performance and reliability of the hard disk group as soon as possible without changing the physical location of the member disks of the RAID group, and realizes While changing the physical location of the member disks of the RAID group, the performance and reliability of the hard disk group can be restored as soon as possible by reducing the occupied time of the hot spare disk.

The first aspect of the embodiments of the present invention provides an information processing method, the method including:

When it is detected that there is a faulty member disk that has failed in the hard disk group, start hot spare disk reconstruction, and restore the data in the faulty member disk to the associated hot spare disk associated with the faulty member disk, wherein the The associated hot spare disk is located in the slot of the hot spare disk, and the failed member disk is located in the slot of the member disk;

When it is detected that the associated hot spare disk is pulled out from the hot spare disk slot, an incremental data bitmap is created;

When detecting that the associated hot spare disk is inserted into the member disk slot, identifying the associated hot spare disk as a member disk;

According to the incremental data bitmap, the incremental data is reconstructed into the member disk, wherein the incremental data bitmap is used for recording from the associated hot spare disk from the hot spare disk slot The storage location of the incremental data written by the host to the failed member disk between the time of unplugging and the time when the associated hot spare disk is inserted into the slot of the member disk.

With reference to the first aspect, in a first possible implementation manner, after the incremental data is restored to the member disk, the method further includes:

determining the reconstruction progress of the reconstruction of the hot spare disk, the reconstruction progress representing the ratio of the data volume in the associated hot spare disk to the data volume in the faulty member disk at the moment of unplugging;

If the reconstruction progress indicates that only part of the data in the faulty member disk has been reconstructed into the associated hot spare disk, reconstruct the remaining data in the faulty member disk except for the part of data into the associated hot spare disk. The above member disk.

With reference to the first aspect, in a second possible implementation manner, when it is detected that the associated hot spare disk is inserted into the slot of the member disk, identifying the associated hot spare disk as a member disk, specifically for:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is the associated hot spare disk;

If yes, identify the associated hot spare disk as a member disk.

With reference to the first aspect, the first possible implementation and the second possible implementation, in the third possible implementation, after the associated hot spare disk is identified as a member disk, the method Also includes:

When it is detected that the spare disk is inserted into the slot of the hot spare disk, the spare disk is set as the hot spare disk.

With reference to the first aspect, in a fourth possible implementation manner, when it is detected that the associated hot spare disk is inserted into the slot of the member disk, identifying the associated hot spare disk as a member disk, specifically for:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is a spare disk;

If yes, start copyback, and copy the data in the failed member disk to the spare disk;

In the process of copying back, the positions of the spare part disk and the associated hot spare disk are exchanged, the associated hot spare disk is inserted into the member disk slot, and the spare part disk is inserted into the Hot spare disk slot;

Identify the associated hot spare disk as a member disk.

With reference to the fourth possible implementation manner, in a fifth possible implementation manner, after identifying the associated hot spare disk as a member disk, the method further includes:

Set the spare part disk as a hot spare disk.

With reference to the first aspect, the first possible implementation to the fifth possible implementation, in the sixth possible implementation, when it is detected that the associated hot spare disk is inserted into the member disk slot When the bit is set, identify the associated hot spare disk as a member disk, specifically:

judging whether the associated hot spare disk is inserted into the member disk slot within a predetermined time from the moment of pulling out;

If yes, the associated hot spare disk is identified as a member disk, wherein the predetermined time is an effective disk replacement time set by the hard disk group.

The second aspect of the embodiment of the present invention provides a processing device, the processing device includes:

The hot spare disk reconstruction module is used to start the reconstruction of the hot spare disk when detecting that there is a faulty member disk in the hard disk group, and restore the data in the faulty member disk to the data associated with the faulty member disk. In the associated hot spare disk, wherein the associated hot spare disk is located in a slot of the hot spare disk, and the failed member disk is located in the slot of the member disk;

A bitmap creation module, configured to create an incremental data bitmap when it is detected that the associated hot spare disk is pulled out from the hot spare disk slot;

A processing module, configured to identify the associated hot spare disk as a member disk when detecting that the associated hot spare disk is inserted into the slot of the member disk;

An incremental data reconstruction module, configured to reconstruct incremental data into the member disk according to the incremental data bitmap, wherein the incremental data bitmap is used to record from the associated hot spare disk From the time when the hot spare disk slot is pulled out to the insertion time when the associated hot spare disk is inserted into the member disk slot, the host writes to the failed member disk The storage location of incremental data.

With reference to the second aspect, in a first possible implementation manner, the processing device further includes:

A reconstruction progress determination module, configured to determine the reconstruction progress of the hot spare disk reconstruction after the incremental data is restored to the member disk, the reconstruction progress indicates that at the pulling time, The ratio of the amount of data in the associated hot spare disk to the amount of data in the faulty member disk;

a reconstruction module, configured to, if the reconstruction progress indicates that only part of the data in the faulty member disk has been reconstructed into the associated hot spare disk, The remaining data is reconstructed to the member disk.

With reference to the second aspect, in a second possible implementation manner, the processing module is specifically configured to:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is the associated hot spare disk;

If yes, identify the associated hot spare disk as a member disk.

With reference to the second aspect, the first possible implementation manner, and the second possible implementation manner, in a third possible implementation manner, the processing device further includes:

The first hot spare disk setting unit is configured to set the spare disk after the associated hot spare disk is identified as a member disk and when it is detected that the spare disk is inserted into the hot spare disk slot It is a hot spare disk.

With reference to the second aspect, in a fourth possible implementation manner, the processing module is specifically configured to:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is a spare disk;

If yes, start copyback, and copy the data in the failed member disk to the spare disk;

In the process of copying back, the positions of the spare part disk and the associated hot spare disk are exchanged, the associated hot spare disk is inserted into the member disk slot, and the spare part disk is inserted into the Hot spare disk slot;

Identify the associated hot spare disk as a member disk.

With reference to the fourth possible implementation manner, in a fifth possible implementation manner, the processing device further includes:

The second hot spare disk setting module is configured to set the spare disk as a hot spare disk after the associated hot spare disk is identified as a member disk.

With reference to the second aspect, the first possible implementation to the fifth possible implementation, in a sixth possible implementation, the processing module is specifically configured to:

judging whether the associated hot spare disk is inserted into the member disk slot within a predetermined time from the moment of pulling out;

If yes, the associated hot spare disk is identified as a member disk, wherein the predetermined time is an effective disk replacement time set by the hard disk group.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

In the embodiment of the present invention, when it is detected that there is a faulty member disk in the hard disk group, reconstruction of the hot spare disk is started; then when it is detected that the associated hot spare disk is inserted into the member disk slot of the faulty member disk, all The associated hot spare disk is identified as a member disk, and finally the incremental data is reconstructed to the identified member disk according to the incremental data bitmap, where the incremental data bitmap is used to record that the associated hot spare disk is unplugged During this period, the storage location of the incremental data written by the host to the failed member disk.

Since the associated hot spare disk is inserted into the slot of the failed member disk, it is recognized as a member disk and replaces the work of the failed member disk, so the physical location of the member disk in the disk group remains unchanged. In addition, since the incremental data bitmap records the storage location of the incremental data written by the host to the failed member disk during the period when the associated hot spare disk is pulled out, after the associated hot spare disk is recognized as a member disk, only It only needs to reconstruct the incremental data to the identified member disks, and the amount of incremental data is small, so the time occupied by the hot spare disk can be reduced, and the performance and reliability of the disk group can be restored as soon as possible.

Description of drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the present invention or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those skilled in the art can also obtain other drawings according to these drawings without paying creative efforts.

FIG. 1 is a schematic diagram of a hard disk group to which an information processing method provided by an embodiment of the present invention is applicable;

FIG. 2 is a flowchart of an information processing method provided by an embodiment of the present invention;

3A-3C are schematic diagrams of the first implementation of the information processing method in the embodiment of the present invention;

4A-4B are schematic diagrams of a second implementation of the information processing method in the embodiment of the present invention;

5A-5B are schematic diagrams of a third implementation manner of an information processing method in an embodiment of the present invention;

FIG. 6 is a block diagram of a processing device provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a hardware structure of an electronic device provided by an embodiment of the present invention.

detailed description

The embodiment of the present invention provides an information processing method, which provides a fault handling scheme that can restore the performance and reliability of the hard disk group as soon as possible without changing the physical location of the member disks of the RAID group, and realizes At the same time, the performance and reliability of the hard disk group can be restored as soon as possible by reducing the occupied time of the hot spare disk.

In the embodiment of the present invention, when it is detected that there is a faulty member disk in the hard disk group, reconstruction of the hot spare disk is started; then when it is detected that the associated hot spare disk is inserted into the member disk slot of the faulty member disk, all The associated hot spare disk is identified as a member disk, and finally the incremental data is reconstructed to the identified member disk according to the incremental data bitmap, where the incremental data bitmap is used to record that the associated hot spare disk is unplugged During this period, the storage location of the incremental data written by the host to the failed member disk.

Since the associated hot spare disk is inserted into the slot of the failed member disk, it is recognized as a member disk and replaces the work of the failed member disk, so the physical location of the member disk in the disk group remains unchanged. In addition, since the incremental data bitmap records the storage location of the incremental data written by the host to the failed member disk during the period when the associated hot spare disk is pulled out, after the associated hot spare disk is recognized as a member disk, only It only needs to reconstruct the incremental data to the identified member disks, and the amount of incremental data is small, so the time occupied by the hot spare disk can be reduced, and the performance and reliability of the disk group can be restored as soon as possible.

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

The embodiment of the present invention provides a kind of information processing method, is suitable for RAID group (English: Redundant Array of Independent Disks; Chinese: Independent Hard Disk Redundant Array), RAID group is to form by grouping a certain number of hard disks, each in the RAID group Hard disks are called member disks, and various RAID algorithms can be used between member disks to improve data redundancy and read/write performance, so as to protect data and optimize performance.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a RAID applicable to an information processing method provided by an embodiment of the present invention. In Figure 1, the RAID group has three member disks: member disk 0, member disk 1, and member disk 2. If any of the three member disks fails, the data in the remaining two member disks can be used to restore the data in the failed member disk through the RAID algorithm. The level of the RAID group is RAID 5.

Please refer to FIG. 2 , which is a flowchart of an information processing method provided by an embodiment of the present invention. The methods include:

Step 21: When it is detected that there is a faulty member disk that has failed in the hard disk group, start hot spare disk reconstruction, and restore the data in the faulty member disk to the associated hot spare disk associated with the faulty member disk, Wherein, the associated hot spare disk is located in the slot of the hot spare disk, and the failed member disk is located in the slot of the member disk;

Step 22: When it is detected that the associated hot spare disk is pulled out from the slot of the hot spare disk, create an incremental data bitmap;

Step 23: When detecting that the associated hot spare disk is inserted into the slot of the member disk, identifying the associated hot spare disk as a member disk;

Step 24: Reconstruct incremental data into the member disk according to the incremental data bitmap, wherein the incremental data bitmap is used to record data from the associated hot spare disk from the hot spare disk The storage location of the incremental data written by the host to the failed member disk between the time when the slot is pulled out and the time when the associated hot spare disk is inserted into the slot of the member disk .

Generally speaking, after a member disk in the disk group fails, the disk group will automatically start the reconstruction of the hot spare disk, find a suitable hot spare disk, and restore the data in the failed member disk to the hot spare disk. The hot spare disk of the recovered data is called the associated hot spare disk of the failed member disk. The solutions provided by the embodiments of the present invention are not only applicable to magnetic disks, but also applicable to solid-state hard disks such as SSDs.

Still referring to Figure 1, assuming that member disk 1 in the disk group fails, the disk group will automatically start hot spare disk reconstruction, and recover the data in the failed member disk 1 through member disk 0 and member disk 2 to Hot spare disk 3. Hot spare disk 3 is called the associated hot spare disk of failed member disk 1.

In the embodiment of the present invention, the hard disk group will recognize the associated hot spare disk as a member disk. In order not to change the physical location of the member disk, you need to remove the associated hot spare disk from the hot spare disk slot, and then insert it into the member disk slot of the faulty member disk. In this way, the data recovery is completed without changing the physical location of the member disks of the disk group.

In the prior art, after the spare disk is inserted into the member disk slot of the faulty member disk, the data in the hot spare disk needs to be copied to the spare disk. longer. In the embodiment of the present invention, in order to ensure that after the associated hot spare disk is inserted into the member disk slot of the faulty member disk, only the data written by the host to the faulty member disk during the period when the associated hot spare disk is pulled out can be restored. When it is detected that the associated hot spare disk is pulled out from the hot spare disk slot, an incremental data bitmap is created. The incremental data bitmap records the time when the associated hot spare disk is removed from the hot spare disk slot and the time when the associated hot spare disk is inserted into the member disk slot of the faulty member disk. The location of the incremental data written to the member disk.

When detecting that the associated hot spare disk is inserted into the slot of the failed member disk, the disk group recognizes the associated hot spare disk as a member disk of the disk group, and restores incremental data to the identified member disk. Specifically, the incremental data can be recovered through the RAID algorithm by using the data in the non-faulty member disks and the incremental data bitmap.

In the embodiment of the present invention, according to the insertion time when the associated hot spare disk is detected to be inserted into the member slot disk of the failed member disk, the data recovery status of the hard disk group has the following three specific implementation modes.

The first implementation mode: when it is detected that the associated hot spare disk is inserted into the member slot disk of the failed member disk, the disk group is in the process of rebuilding the hot spare disk, and the reconstruction of the hot spare disk has not been completed yet. That is to say, during the reconstruction process of the hot spare disk of the disk group, the associated hot spare disk is inserted into the member slot disk of the failed member disk.

In the first implementation manner, after performing step 24, the following steps may also be performed:

determining the reconstruction progress of the reconstruction of the hot spare disk, the reconstruction progress representing the ratio of the data volume in the associated hot spare disk to the data volume in the faulty member disk at the moment of unplugging;

If the reconstruction progress indicates that only part of the data in the faulty member disk has been reconstructed into the associated hot spare disk, reconstruct the remaining data in the faulty member disk except for the part of data into the associated hot spare disk. The above member disk.

For example, generally speaking, after a member disk in the disk group fails, the disk group will automatically start the reconstruction of the hot spare disk, find a suitable hot spare disk, and restore the data in the failed member disk to the hot spare disk. If the associated hot spare disk is pulled out of the hot spare disk slot during the reconstruction of the hot spare disk of the disk group, the reconstruction of the hot spare disk will be suspended, and only part of the data in the failed member disk Restore to the associated hot spare disk. When the associated hot spare disk is inserted into the slot of the failed member disk, the associated hot spare disk will be identified as a member disk, and then the remaining data in the failed member disk will be restored to the identified member disk. plate.

Please still refer to Figure 1. Assuming that member disk 1 in the disk group fails, the disk group will automatically start hot spare disk reconstruction, and use member disk 0 and member disk 2 to restore the faulty member disk 1 according to the RAID redundancy algorithm. The data in is restored to hot spare disk 3. Hot spare disk 3 is called the associated hot spare disk of failed member disk 1. During the reconstruction of the hot spare disk, if the hot spare disk 3 is pulled out from the slot of the hot spare disk, the reconstruction of the hot spare disk will be suspended, and only part of the data in the member disk 1 will be restored to the hot spare disk 3. 3A, only part of the data in the member disk 1 is restored to the hot spare disk 3, and the shaded part in FIG. 3A represents the partial data restored to the hot spare disk 3. When the hot spare disk 3 is inserted into the slot of the member disk 1, the hot spare disk 3 is identified as a member disk, and then the remaining data in the member disk 1 will be restored to the identified member disk.

When the hot spare disk 3 is pulled out from the hot spare disk slot, an incremental data bitmap will also be created. As shown in Figure 3B, during the period when the hot spare disk is pulled out, that is, from the moment when the hot spare disk 3 is pulled out from the hot spare disk slot, until the hot spare disk 3 is inserted into the member disk of member disk 1 Between slots, the data written by the host to member disk 1 is called incremental data. In FIG. 3B , the small squares in member disk 0 and member disk 2 represent incremental data. You can create storage locations for incremental data, known as incremental data bitmaps. The table in FIG. 3B is the incremental data bitmap.

When hot spare disk 3 is inserted into the slot of member disk 1, hot spare disk 3 is recognized as a member disk, and not only will the remaining data in member disk 1 be restored to the identified member disk, but also the additional Amount of data can be restored to the identified member disks. As shown in Figure 3C, the hot spare disk 3 is located in the slot of the member disk 1, not only restores the incremental data to the hot spare disk 3, but also restores the remaining data to the hot spare disk 3, in Figure 3C, the hot spare disk The unshaded part in the spare disk 3 represents the rest of the data.

The second implementation manner: when it is detected that the associated hot spare disk is inserted into the member slot disk of the faulty member disk, the disk group has completed reconstruction of the hot spare disk. That is to say, after the reconstruction of the hot spare disk in the disk group is completed, the associated hot spare disk is inserted into the member slot of the failed member disk.

In the second implementation manner, step 23 is specifically:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is the associated hot spare disk;

If yes, identify the associated hot spare disk as a member disk.

For example, generally speaking, after a member disk in the disk group fails, the disk group will automatically start the reconstruction of the hot spare disk, find a suitable hot spare disk, and restore the data in the failed member disk to the hot spare disk. If the associated hot spare disk is pulled out of the hot spare disk slot during the reconstruction of the hot spare disk of the disk group, the reconstruction of the hot spare disk will be suspended, and only part of the data in the failed member disk Restore to the associated hot spare disk. When the associated hot spare disk is inserted into the slot of the failed member disk, the associated hot spare disk will be identified as a member disk, and then the remaining data in the failed member disk will be restored to the identified member disk. plate.

Still referring to Figure 1, assuming that member disk 1 in the disk group fails, the disk group will automatically start hot spare disk reconstruction, and recover the data in the failed member disk 1 through member disk 0 and member disk 2 to Hot spare disk 3. Hot spare disk 3 is called the associated hot spare disk of failed member disk 1. After the reconstruction of the hot spare disk is completed, all data in member disk 1 is restored to hot spare disk 3, as shown in Figure 4A, all data in member disk 1 is restored to hot spare disk 3, and the shaded part is used in Figure 4A Indicates the data restored to hot spare disk 3. When the hot spare disk 3 is inserted into the slot of the member disk 1, the hot spare disk 3 is identified as a member disk, and only incremental data needs to be restored to the identified member disk.

When hot spare disk 3 is inserted into the slot of member disk 1, hot spare disk 3 is recognized as a member disk. Since the reconstruction of the hot spare disk has been completed, it is only necessary to restore the incremental data to the identified member disk . As shown in Figure 4B, the hot spare disk 3 is located in the slot of the member disk 1, and only the incremental data needs to be restored to the hot spare disk 3. In Figure 4B, the shaded part of the hot spare disk 3 represents the member disk 1 All data in .

In the above two implementation manners, after identifying the associated hot spare disk as a member disk, the method further includes: when detecting that the spare disk is inserted into the slot of the hot spare disk, The spare disk is set as a hot spare disk.

Specifically, after the associated hot spare disk is identified as a member disk, the spare disk can be inserted into the hot spare disk slot of the associated hot spare disk, and the spare disk becomes a hot spare disk. For example: after hot spare disk 3 is inserted into the slot of member disk 1, hot spare disk 3 is identified as a member disk, at this time, the spare disk can be inserted into the hot spare disk slot of hot spare disk 3, and the spare disk It becomes a hot spare disk.

The third implementation manner: when it is detected that the associated hot spare disk is inserted into the member slot disk of the faulty member disk, the hard disk group is copying back. That is to say, during the copyback process of the disk group, the associated hot spare disk is inserted into the member slot disk of the failed member disk.

In the third implementation manner, step 23 is specifically:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is a spare disk;

If yes, start copyback, and copy the data in the failed member disk to the spare disk;

In the process of copying back, the positions of the spare part disk and the associated hot spare disk are exchanged, the associated hot spare disk is inserted into the member disk slot, and the spare part disk is inserted into the Hot spare disk slot;

Identify the associated hot spare disk as a member disk.

In a third implementation manner, after the associated hot spare disk is identified as a member disk, the method further includes: setting the spare disk as a hot spare disk.

For example, generally speaking, after a member disk in the disk group fails, the disk group will automatically start the reconstruction of the hot spare disk, find a suitable hot spare disk, and restore the data in the failed member disk to the hot spare disk. After the reconstruction of the hot spare disk is completed, if the spare disk is inserted into the member disk slot of the faulty member disk, the disk group will automatically start recopying, and restore the data in the hot spare disk to the spare disk. Because the data in the hot spare disk is the data in the failed member disk, the data volume is large, and copying back takes a long time. Therefore, the associated hot spare disk and the spare disk can be exchanged, and the associated hot spare disk can be inserted into the member disk slot of the faulty member disk, and the spare disk can be inserted into the hot spare disk slot of the associated hot spare disk. In this way, The data in the failed member disk has already been stored in the associated hot spare disk inserted into the member disk of the failed member disk, and only the incremental data, that is, the data written by the host to the failed member disk when the associated hot spare disk is pulled out, is required. The data can be restored to the associated hot spare disk. At the same time, since the spare part disk is inserted into the slot associated with the hot spare disk, the spare part disk can be set as a hot spare disk.

Still referring to Figure 1, assuming that member disk 1 in the disk group fails, the disk group will automatically start hot spare disk reconstruction, and recover the data in the failed member disk 1 through member disk 0 and member disk 2 to Hot spare disk 3. Hot spare disk 3 is called the associated hot spare disk of failed member disk 1. After the reconstruction of the hot spare disk is completed, all the data in the member disk 1 is restored to the hot spare disk 3, as shown in Figure 5A, all the data in the member disk 1 is restored to the hot spare disk 3, and the shaded part is used in Figure 5A Indicates the data restored to hot spare disk 3. When the spare disk 4 is inserted into the slot of the member disk 1, the hard disk group will automatically start recopying, and copy the data in the hot spare disk 3 to the spare disk 4. Data copied to the spare disk 4 is indicated by a black portion in FIG. 5A.

During the recopying process, the hot spare disk 3 and the spare disk 4 are swapped, the hot spare disk 3 is inserted into the slot of the member disk 1, and the spare disk 1 is inserted into the hot spare disk slot of the hot spare disk 3, When the hot spare disk 3 is inserted into the slot of the member disk 1, the hot spare disk 3 is identified as a member disk, and only incremental data needs to be restored to the identified member disk.

When hot spare disk 3 is inserted into the slot of member disk 1, hot spare disk 3 is recognized as a member disk. Since the reconstruction of the hot spare disk has been completed, it is only necessary to restore the incremental data to the identified member disk . As shown in Figure 5B, the hot spare disk 3 is located in the slot of the member disk 1, and only the incremental data needs to be restored to the hot spare disk 3. In Figure 5B, the shaded part of the hot spare disk 3 represents the member disk 1 All the data in , the spare disk 4 is located in the slot of the hot spare disk 3, and is set as the hot spare disk.

In the above three implementation manners, step 23 is specifically:

judging whether the associated hot spare disk is inserted into the member disk slot within a predetermined time from the moment of pulling out;

If yes, the associated hot spare disk is identified as a member disk, wherein the predetermined time is an effective disk replacement time set by the hard disk group.

Specifically, after the associated hot spare disk is pulled out, the associated hot spare disk will be identified as member disk. If it is not detected that the associated hot spare disk is inserted into the member disk slot of the failed member disk for a long time after the associated hot spare disk is pulled out, in order to prevent the disk group from degrading, a new hot spare disk will be searched for hot spare disk reconstruction . Prevent the disk group from waiting for the associated hot spare disk to be inserted into the member disk slot of the failed member disk.

The information processing method provided by the embodiment of the present invention inserts the associated hot spare disk of the faulty member disk into the member After the disk slot is set, it is recognized as a member disk and can immediately take over the work of the failed member disk. Compared with hot spare disk reconstruction, only the incremental data needs to be restored to the identified member disk, and there is no need to wait for the spare disk to be inserted into the member disk slot of the faulty member disk before copying back, saving copyback time. Compared with in-place reconstruction, there is no need to wait for the spare disk to be inserted into the member disk slot of the faulty member disk, and only need to insert the associated hot spare disk into the member disk slot of the faulty member disk, which reduces the time that the disk group is in the degraded state. Compared with disk replacement and reconstruction, the location and distribution of the member disks of the disk group are not changed, and the physical disk planning of customers is not affected. If the keyboard is inserted into the member disk slot of the faulty member disk by mistake, you can directly exchange the spare disk with the associated hot spare disk without waiting for the copyback to complete, and then restore the incremental data to the associated hot spare disk.

Based on the same inventive concept, an embodiment of the present invention further provides a processing device, please refer to FIG. 6 , which is a block diagram of the processing device provided by the embodiment of the present invention. For the meanings and specific implementations of the terms involved in the processing device shown in FIG. 6 , reference may be made to the aforementioned FIGS. 1 to 5 and related descriptions of the embodiments.

Please refer to FIG. 6, the information processing device 60 includes:

The hot spare disk reconstruction module 61 is used to start the reconstruction of the hot spare disk when it is detected that there is a failed member disk in the hard disk group, and restore the data in the failed member disk to the data associated with the failed member disk. In the associated hot spare disk, the associated hot spare disk is located in the slot of the hot spare disk, and the failed member disk is located in the slot of the member disk;

A bitmap creation module 62, configured to create an incremental data bitmap when it is detected that the associated hot spare disk is pulled out from the hot spare disk slot;

A processing module 63, configured to identify the associated hot spare disk as a member disk when it is detected that the associated hot spare disk is inserted into the slot of the member disk;

Incremental data reconstruction module 64, configured to reconstruct incremental data into the member disk according to the incremental data bitmap, wherein the incremental data bitmap is used to record from the associated hot standby Between the time when the disk is pulled out from the hot spare disk slot and the insertion time when the associated hot spare disk is inserted into the member disk slot, all data written by the host to the failed member disk The storage location of the incremental data mentioned above.

Optionally, the processing device 60 also includes:

A reconstruction progress determination module, configured to determine the reconstruction progress of the hot spare disk reconstruction after the incremental data is restored to the member disk, the reconstruction progress indicates that at the pulling time, The ratio of the amount of data in the associated hot spare disk to the amount of data in the faulty member disk;

a reconstruction module, configured to, if the reconstruction progress indicates that only part of the data in the faulty member disk has been reconstructed into the associated hot spare disk, The remaining data is reconstructed to the member disk.

Optionally, the processing module 63 is specifically configured to:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is the associated hot spare disk;

If yes, identify the associated hot spare disk as a member disk.

In combination with the above embodiments, the processing device further includes:

The first hot spare disk setting unit is configured to set the spare disk after the associated hot spare disk is identified as a member disk and when it is detected that the spare disk is inserted into the hot spare disk slot It is a hot spare disk.

Optionally, the processing module 63 is specifically configured to:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is a spare disk;

If yes, start copyback, and copy the data in the failed member disk to the spare disk;

In the process of copying back, the positions of the spare part disk and the associated hot spare disk are exchanged, the associated hot spare disk is inserted into the member disk slot, and the spare part disk is inserted into the Hot spare disk slot;

Identify the associated hot spare disk as a member disk.

Optionally, the processing device also includes:

The second hot spare disk setting module is configured to set the spare disk as a hot spare disk after the associated hot spare disk is identified as a member disk.

In combination with the above embodiments, the processing module 63 is specifically used for:

judging whether the associated hot spare disk is inserted into the member disk slot within a predetermined time from the moment of pulling out;

If yes, the associated hot spare disk is identified as a member disk, wherein the predetermined time is an effective disk replacement time set by the hard disk group.

The various variations and specific examples of the information processing method in the aforementioned embodiments of Figures 1-5 are also applicable to the processing device of this embodiment, and those skilled in the art can clearly understand through the aforementioned detailed description of the information processing method The implementation method of the processing device in this embodiment is not described in detail here for the sake of brevity.

Based on the same inventive concept, an embodiment of the present invention further provides an electronic device, please refer to FIG. 7 , which is a schematic diagram of a hardware structure of the electronic device provided by an embodiment of the present invention. Electronic device 700 includes:

processor 71 , bus 70 and memory 72 .

Processor 71 is used for:

When it is detected that there is a faulty member disk that has failed in the hard disk group, start hot spare disk reconstruction, and restore the data in the faulty member disk to the associated hot spare disk associated with the faulty member disk, wherein the The associated hot spare disk is located in the slot of the hot spare disk, and the failed member disk is located in the slot of the member disk;

When it is detected that the associated hot spare disk is pulled out from the hot spare disk slot, an incremental data bitmap is created;

When detecting that the associated hot spare disk is inserted into the member disk slot, identifying the associated hot spare disk as a member disk;

According to the incremental data bitmap, the incremental data is reconstructed into the member disk, wherein the incremental data bitmap is used for recording from the associated hot spare disk from the slot of the hot spare disk The storage location of the incremental data written by the host to the failed member disk between the time of unplugging and the time when the associated hot spare disk is inserted into the slot of the member disk.

Optionally, the processor 71 is also used for:

After the incremental data is restored to the member disk, the reconstruction progress of the hot spare disk reconstruction is determined, and the reconstruction progress represents that at the time of pulling out, the associated hot spare disk The ratio of the amount of data to the amount of data in the faulty member disk;

If the reconstruction progress indicates that only part of the data in the faulty member disk has been reconstructed into the associated hot spare disk, reconstruct the remaining data in the faulty member disk except for the part of data into the associated hot spare disk. The above member disk.

Optionally, the processor 71 is specifically configured to:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is the associated hot spare disk;

If yes, identify the associated hot spare disk as a member disk.

Optionally, the processor 71 is used for:

After the associated hot spare disk is identified as a member disk, and when it is detected that the spare disk is inserted into the slot of the hot spare disk, the spare disk is set as a hot spare disk.

Optionally, the processor 71 is used for:

After detecting that the faulty member disk is pulled out from the member disk slot, determine whether the hard disk inserted into the member disk slot for the first time is a spare disk;

If yes, start copyback, and copy the data in the failed member disk to the spare disk;

In the process of copying back, the positions of the spare part disk and the associated hot spare disk are exchanged, the associated hot spare disk is inserted into the member disk slot, and the spare part disk is inserted into the Hot spare disk slot;

Identify the associated hot spare disk as a member disk.

Optionally, the processor 71 is used for:

After the associated hot spare disk is identified as a member disk, the spare disk is set as a hot spare disk.

Optionally, the processor 71 is used for:

judging whether the associated hot spare disk is inserted into the member disk slot within a predetermined time from the moment of pulling out;

If yes, the associated hot spare disk is identified as a member disk, wherein the predetermined time is an effective disk replacement time set by the hard disk group.

Wherein, in FIG. 7, the bus architecture (represented by bus 70), bus 70 may include any number of interconnected buses and bridges, and bus 70 will include one or more processors represented by processor 71 and memory 72. The various circuits of the memory are connected together. The bus 70 may also connect together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein.

The processor 71 is responsible for managing the bus 70 and general processing, while the memory 72 may be used to store data and execute codes used by the processor 71 when performing operations.

The electronic device 700 of this embodiment can implement various variations and specific examples of the information processing method in the foregoing embodiments in FIGS. 1 to 5 . Those skilled in the art can clearly understand the The implementation method of the electronic device in this embodiment is not described in detail here for the sake of brevity.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

While preferred embodiments of the present invention have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (14)

1. a kind of information processing method is it is characterised in that methods described includes:

When detect there is the fault member disk breaking down in hard disk groups when, start HotSpare disk reconstruct, by described fault member To in the association HotSpare disk associating with described fault member disk, wherein, described association HotSpare disk is located at heat to data recovery in disk In standby dish groove position, described fault member disk is located in member's dish groove position；

When detect described association HotSpare disk be pulled out from described hot standby dish groove position when, create incremental data bitmap；

When detect described association HotSpare disk be inserted into described member dish groove position when, by described association HotSpare disk be identified as member Disk；

According to described incremental data bitmap, incremental data is reconfigured in described member disk, wherein, described incremental data bitmap is used In record from described association HotSpare disk from described hot standby dish groove position be pulled out extract constantly to described association HotSpare disk inserted Enter between the insertion moment of described member's dish groove position, the storage of the described incremental data that main frame writes to described fault member disk Position.

2. the method for claim 1 it is characterised in that return in described member disk it described by incremental data Afterwards, methods described also includes:

Determine the reconstruct progress of described HotSpare disk reconstruct, described reconstruct progress be characterized in described in extract the moment, described association is hot standby Data volume in disk accounts for the ratio of the data volume in described fault member disk；

If described reconstruct progress characterizes only partial data in described fault member disk and has been reconfigured in described association HotSpare disk, The remaining data in addition to described partial data in described fault member disk is reconfigured in described member disk.

3. the method for claim 1 it is characterised in that described when detect described association HotSpare disk be inserted into described During member dish groove position, described association HotSpare disk is identified as member disk, particularly as follows:

Detecting after described fault member disk extracts from described member's dish groove position, judging to insert for the first time on described member's dish groove position Whether the hard disk entering is described association HotSpare disk；

If it has, then described association HotSpare disk is identified as member disk.

4. the method as described in claim arbitrary in claim 1-3 is it is characterised in that identify described association HotSpare disk described After member disk, methods described also includes:

When spare part disk is detected and being inserted into described hot standby dish groove position, described spare part disk is set to HotSpare disk.

5. the method for claim 1 it is characterised in that described when detect described association HotSpare disk be inserted into described During member dish groove position, described association HotSpare disk is identified as member disk, particularly as follows:

Detecting after described fault member disk extracts from described member's dish groove position, judging to insert for the first time on described member's dish groove position Whether the hard disk entering is spare part disk；

If it has, then start back copying, by the data duplication in described fault member disk in described spare part disk；

During copying, exchange the position of described spare part disk and described association HotSpare disk at described go back to, by described association HotSpare disk It is inserted into described member's dish groove position, and described spare part disk is inserted into described hot standby dish groove position；

Described association HotSpare disk is identified as member disk.

6. method as claimed in claim 5 it is characterised in that described by described association HotSpare disk be identified as member disk it Afterwards, methods described also includes:

Described spare part disk is set to HotSpare disk.

7. the method as described in claim arbitrary in claim 1-3,5,6 is it is characterised in that described hot when described association is detected When standby disk is inserted into described member dish groove position, described association HotSpare disk is identified as member disk, particularly as follows:

Judge whether described association HotSpare disk is inserted into described member's dish groove within the scheduled time from described extracting constantly Position；

If it has, then described association HotSpare disk is identified as member disk, wherein, the described scheduled time is that described hard disk groups set Effectively change the disk time.

8. a kind of processing meanss are it is characterised in that described processing meanss include:

HotSpare disk reconstructed module, for when detect there is the fault member disk breaking down in hard disk groups when, start HotSpare disk Reconstruct, by the data recovery in described fault member disk in the association HotSpare disk associating with described fault member disk, wherein, institute State association HotSpare disk to be located in hot standby dish groove position, described fault member disk is located in member's dish groove position；

Bitmap creation module, for when detect described association HotSpare disk be pulled out from described hot standby dish groove position when, create increment Data bitmap；

Processing module, for when detect described association HotSpare disk be inserted into described member dish groove position when, will described association heat Standby disk is identified as member disk；

Incremental data reconstructed module, for according to described incremental data bitmap, incremental data being reconfigured in described member disk, its In, described incremental data bitmap be used for record from described association HotSpare disk from described hot standby dish groove position be pulled out extract constantly It is inserted between the insertion moment of described member's dish groove position to described association HotSpare disk, main frame writes to described fault member disk Described incremental data storage location.

9. processing meanss as claimed in claim 8 are it is characterised in that described processing meanss also include:

Reconstruct progress determining module, for described incremental data is returned in described member disk after, determine described hot standby Disk reconstruct reconstruct progress, described reconstruct progress be characterized in described in extract the moment, the data volume in described association HotSpare disk accounts for institute State the ratio of the data volume in fault member disk；

Reconstructed module, if characterize only partial data in described fault member disk for described reconstruct progress be reconfigured to described pass In connection HotSpare disk, then the remaining data in addition to described partial data in described fault member disk is reconfigured to described member disk In.

10. processing meanss as claimed in claim 8 it is characterised in that described processing module specifically for:

Detecting after described fault member disk extracts from described member's dish groove position, judging to insert for the first time on described member's dish groove position Whether the hard disk entering is described association HotSpare disk；

If it has, then described association HotSpare disk is identified as member disk.

11. processing meanss as described in claim arbitrary in claim 8-10 are it is characterised in that described processing meanss also include:

First HotSpare disk arranging unit, for described described association HotSpare disk is identified as member disk after, and when detecting When spare part disk is inserted into described hot standby dish groove position, described spare part disk is set to HotSpare disk.

12. processing meanss as claimed in claim 8 it is characterised in that described processing module specifically for:

Detecting after described fault member disk extracts from described member's dish groove position, judging to insert for the first time on described member's dish groove position Whether the hard disk entering is spare part disk；

If it has, then start back copying, by the data duplication in described fault member disk in described spare part disk；

During copying, exchange the position of described spare part disk and described association HotSpare disk at described go back to, by described association HotSpare disk It is inserted into described member's dish groove position, and described spare part disk is inserted into described hot standby dish groove position；

Described association HotSpare disk is identified as member disk.

13. processing meanss as claimed in claim 12 are it is characterised in that described processing meanss also include:

Second HotSpare disk setup module, for described by described association HotSpare disk be identified as member disk after, by described spare part Disk is set to HotSpare disk.

14. processing meanss as described in claim arbitrary in claim 8-10,12,13 are it is characterised in that described processing module has Body is used for:

Judge whether described association HotSpare disk is inserted into described member's dish groove within the scheduled time from described extracting constantly Position；

If it has, then described association HotSpare disk is identified as member disk, wherein, the described scheduled time is that described hard disk groups set Effectively change the disk time.