CN111475111A - A RAID group pairing method and device for avoiding destruction of hard disk data - Google Patents

Abstract

The invention discloses a RAID group pairing method and device for avoiding damage to hard disk data, wherein when a hard disk to be paired which is subjected to RAID is inserted into a server, whether the hard disk which is not subjected to RAID exists in the hard disks connected with a server RAID card is judged; if not, giving out a disk dropping warning of the hard disks to be paired, and judging whether unpaired hard disks exist in the hard disks connected with the RAID card of the server; and if so, giving an unpaired hard disk alarm. According to the invention, the condition that the hard disks to be paired are blindly paired to other unpaired hard disks to cause data damage is avoided, and the worker can judge the reason for the disk dropping of the hard disks to be paired according to the related warning.

Description

A RAID group pairing method and device for avoiding destruction of hard disk data

technical field

The invention relates to the field of hard disk RAID pairing, in particular to a RAID group pairing method and device for avoiding the destruction of hard disk data.

Background technique

In order to expand the storage capacity, improve the read and write speed of the server hard disk and enhance the fault tolerance of the hard disk, several hard disks are usually formed into different RAID (Redundant Array of Independent Disks) arrays, that is, redundant array of independent disks.

RAID technology supports automatic fault detection, data reconstruction of hard disk bad sectors, non-stop hard disk backup, non-stop hard disk replacement and online expansion, etc., which greatly guarantees the stable operation of the server. However, there are also some uncontrollable aspects of this technology in the process of use. For example, when rebuilding the data of the bad sectors of the hard disk, if the single hard disk A inserted has a RAID 1, and the other hard disk B of the server also happens to do RAID 1 and lack of an expected paired hard disk, then uncertainty will arise at this time, whether the data of hard disk A is reconstructed to hard disk B, or the data of hard disk B is reconstructed to hard disk A, it may be damaged. data on one of the disks.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a RAID group pairing method and device for avoiding the destruction of hard disk data, giving relevant warnings, avoiding direct pairing, and protecting data from being destroyed.

The technical scheme of the present invention is: a RAID group pairing method for avoiding destruction of hard disk data, comprising the following steps:

When a RAID-ready hard disk is inserted into the server to be paired, determine whether there are hard disks without RAID in the hard disks connected to the server's RAID card;

If it does not exist, it will give a warning that the hard disk to be paired is dropped, and determine whether there is an unpaired hard disk among the hard disks connected to the server RAID card;

If it exists, it will give an unpaired hard disk warning.

Further, the method also includes:

If there is a hard disk that has not been RAIDed in the hard disks connected to the server RAID card, the hard disk that has not been RAIDed will be used as the target hard disk;

Determine whether there is a matching hard disk in the target hard disk with the same model as the hard disk to be paired, and the capacity is not less than that of the hard disk to be paired;

If it exists, select any matchable hard drive to pair with the to-be-paired hard drive, and rebuild the data on the to-be-paired hard drive to the matchable hard drive;

If it does not exist, it will give a warning that the hard disk to be paired is dropped, and determine whether there is an unpaired hard disk among the hard disks connected to the server RAID card that have been RAIDed;

If it exists, it will give an unpaired hard disk warning.

Further, the warning of the disk loss of the hard disk to be paired refers to lighting up the relevant indicator lights of the hard disk to be paired.

Further, the unpaired hard disk warning refers to causing the unpaired hard disk to light up a relevant indicator light.

The technical solution of the present invention also includes a RAID group pairing device that avoids destroying hard disk data, including:

RAID hard disk judgment module: When a hard disk that has been paired with RAID is inserted into the server, it can judge whether there is a hard disk without RAID among the hard disks connected to the RAID card of the server;

Disk drop warning module for paired hard disk: When there is no hard disk that has not been RAIDed in the hard disk connected to the server RAID card, it will give a disk drop warning for the hard disk to be paired;

Unpaired hard disk judging module: When the paired hard disk is lost, it determines whether there is an unpaired hard disk among the hard disks connected to the server RAID card that have been RAIDed;

Unpaired hard disk warning module: When there are unpaired hard disks in the RAID-ready hard disks connected to the server RAID card, an unpaired hard disk warning is given.

Further, the device also includes:

Matchable hard disk search module: determine whether there is a matching hard disk in the target hard disk with the same model as the hard disk to be paired, and the capacity is not smaller than the hard disk to be paired; the target hard disk refers to the hard disk connected to the server RAID card that has not been RAIDed;

Pairing reconstruction module: If there is a matching hard disk in the target hard disk with the same model as the hard disk to be paired, and the capacity is not smaller than that of the hard disk to be paired, select any matching hard disk to pair with the hard disk to be paired, and rebuild the data on the hard disk to be paired to This can be matched on the hard disk.

Further, when the to-be-paired hard disk drop warning module gives a to-be-paired hard disk drop warning, it means to turn on the relevant indicator lights of the to-be-paired hard disk.

Further, the unpaired hard disk judging module giving an unpaired hard disk warning means that the unpaired hard disk lights up a relevant indicator light.

The present invention provides a RAID group pairing method and device for avoiding damage to hard disk data. When inserting a hard disk to be paired with RAID, if it is judged that all hard disks connected to the server RAID card are RAID, the paired hard disk will not be paired. , to give a warning that the hard drive to be paired is dropped, to avoid blindly pairing the hard drive to be paired to other unpaired hard drives, resulting in data damage. In addition, when the to-be-paired hard disk is dropped, it is judged that there are hard disks connected to the server RAID card that have been RAIDed but not paired, and an unpaired hard disk warning will be given, which can also remind staff to deal with the unpaired hard disk to avoid The hard disk to be paired is paired with the unpaired hard disk, which damages the data of both. And the staff can judge the reason for the drop of the hard disk to be paired according to the relevant warnings.

Description of drawings

FIG. 1 is a schematic flowchart of a method according to a specific embodiment of the present invention.

FIG. 2 is a schematic block diagram of the structure of the second embodiment of the present invention.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific examples. The following examples are to explain the present invention, but the present invention is not limited to the following embodiments.

Example 1

As shown in FIG. 1 , the present embodiment provides a RAID group pairing method for avoiding the damage of hard disk data in the case that both disks have RAID groups, and avoids the problem of data damage on the two hard disks, including the following steps:

S1, when a hard disk to be paired with RAID is inserted into the server, determine whether there is a hard disk without RAID in the hard disks connected to the RAID card of the server;

It should be noted that it can monitor whether the hard disk to be paired with RAID has been inserted. When the hard disk to be paired with RAID has been inserted, in order to perform pairing, the model and capacity of the hard disk to be paired can be obtained after insertion.

S2, if it does not exist, it will give a warning that the hard disk to be paired is dropped, and determine whether there is an unpaired hard disk among the hard disks connected to the server RAID card;

It should be noted that, check whether there are unpaired hard disks among the hard disks connected to the server RAID card that have been RAIDed. In this step, because the hard disks connected to the server RAID card have been RAIDed, all hard disks are found to be paired hard disks.

S3, if it exists, it will give an unpaired hard disk warning.

To realize pairing, this embodiment further includes the following steps:

S4, if there is a hard disk without RAID in the hard disk connected to the server RAID card, the hard disk without RAID is used as the target hard disk;

S5, determine whether there is a matching hard disk in the target hard disk with the same model as the hard disk to be paired, and the capacity is not less than that of the hard disk to be paired;

S6, if it exists, select any matching hard disk to be paired with the to-be-paired hard disk, and reconstruct the data on the to-be-paired hard disk to the matched hard disk;

S7, if it does not exist, it will give a warning that the hard disk to be paired is dropped, and judge whether there is an unpaired hard disk among the hard disks connected to the server RAID card that have been RAIDed;

S8, if it exists, it will give an unpaired hard disk warning.

It should be noted that the above steps S7 and S8, namely step S5, return to step S2 when it is determined that the target hard disk does not have a matching hard disk with the same model as the hard disk to be paired and the capacity is not smaller than that of the hard disk to be paired.

In this embodiment, the warning of the disk loss of the hard disk to be paired means that the related indicator lights of the hard disk to be paired are turned on. The unpaired hard disk warning refers to the related indicator lights of the unpaired hard disk. If the unpaired hard disk lights up a white indicator, it means that it is RAID but not paired.

Embodiment 2

As shown in FIG. 2 , this embodiment provides a RAID group pairing device that avoids destroying hard disk data, including:

RAID hard disk judgment module 1: When a hard disk to be paired with RAID is inserted into the server, determine whether there is a hard disk without RAID in the hard disks connected to the RAID card of the server;

Disk drop warning module 2 of the paired hard disk: When there is no hard disk that has not been RAIDed in the hard disks connected to the server RAID card, it will give a disk drop warning of the hard disk to be paired;

Unpaired hard disk determination module 3: When the paired hard disk is dropped, determine whether there is an unpaired hard disk among the hard disks connected to the server RAID card that have been RAIDed;

Unpaired hard disk warning module 4: When there is an unpaired hard disk in the RAID-ready hard disk connected to the server RAID card, an unpaired hard disk warning is given;

Matching hard disk search module 5: Determine whether there is a matching hard disk in the target hard disk with the same model as the hard disk to be paired, and the capacity is not less than that of the hard disk to be paired; the target hard disk refers to the hard disk connected to the server RAID card without RAID;

Pairing reconstruction module 6: If there is a matching hard disk in the target hard disk with the same model as the hard disk to be paired and the capacity is not smaller than that of the hard disk to be paired, select any compatible hard disk to pair with the hard disk to be paired, and rebuild the data on the hard disk to be paired to the compatible hard drive.

It should be noted that when all the hard disks connected to the server RAID card have done RAID, the unpaired hard disk judgment module 3 searches for unpaired hard disks among all the hard disks connected to the server RAID card; , the unpaired hard disk determination module 3 searches for unpaired hard disks among the hard disks connected to the server RAID card for RAID.

The warning module 2 of the hard disk to be paired loses the disk to give the warning that the hard disk to be paired is dropped, that is, to turn on the relevant indicator lights of the hard disk to be paired. The unpaired hard disk warning module 4 gives an unpaired hard disk warning, which means that the unpaired hard disk lights up the relevant indicators. If the unpaired hard disk lights up a white indicator, it means that it has RAID but is not paired.

The above disclosure is only the preferred embodiment of the present invention, but the present invention is not limited thereto, any non-creative changes that can be conceived by those skilled in the art, and some improvements and modifications made without departing from the principles of the present invention , should fall within the protection scope of the present invention.

Claims (8)

1. A RAID group pairing method for avoiding damage to hard disk data is characterized by comprising the following steps:

when a hard disk to be paired which is subjected to RAID is inserted into the server, judging whether the hard disk which is not subjected to RAID exists in the hard disks connected with the RAID card of the server;

if not, giving out a disk dropping warning of the hard disks to be paired, and judging whether unpaired hard disks exist in the hard disks connected with the RAID card of the server;

and if so, giving an unpaired hard disk alarm.

2. The RAID group pairing method of avoiding corruption of hard disk data of claim 1, the method further comprising:

if the hard disk which is not subjected to RAID exists in the hard disks connected with the server RAID card, taking the hard disk which is not subjected to RAID as a target hard disk;

judging whether a matchable hard disk with the capacity not less than that of the hard disk to be matched exists in the target hard disk, wherein the model of the matchable hard disk is consistent with that of the hard disk to be matched;

if yes, selecting any one of the matchable hard disks to be matched with the hard disk to be matched, and reconstructing data on the hard disk to be matched onto the matchable hard disk;

if not, giving out a disk dropping warning of the hard disks to be paired, and judging whether unpaired hard disks exist in the hard disks which are connected with the RAID card of the server and are subjected to RAID;

and if so, giving an unpaired hard disk alarm.

3. RAID group pairing method avoiding corrupting hard disk data according to claim 1 or 2,

the warning of the disk dropping of the hard disks to be paired refers to lighting a related indicator lamp of the hard disks to be paired.

4. RAID group pairing method avoiding corrupting hard disk data according to claim 1 or 2,

unpaired hard disk warning means that an unpaired hard disk lights up a related indicator light.

5. A RAID group pairing apparatus for avoiding damage to hard disk data, comprising:

RAID hard disk judgment module: when a hard disk to be paired which is subjected to RAID is inserted into the server, judging whether the hard disk which is not subjected to RAID exists in the hard disks connected with the RAID card of the server;

the hard disk falling warning module to be paired: when no hard disk which is not subjected to RAID does not exist in the hard disks connected with the server RAID card, giving out a disk-dropping warning of the hard disk to be paired;

unpaired hard disk judgment module: when the paired hard disks are disqualified, judging whether unpaired hard disks exist in the hard disks connected with the RAID card of the server and subjected to RAID;

unpaired hard disk warning module: and when the hard disk connected with the RAID card of the server and used for RAID has an unpaired hard disk, giving an unpaired hard disk alarm.

6. A RAID group pairing apparatus for avoiding corruption of hard disk data according to claim 5 further comprising:

matchable hard disk search module: judging whether a matchable hard disk with the capacity not less than that of the hard disk to be matched exists in the target hard disk, wherein the model of the matchable hard disk is consistent with that of the hard disk to be matched; the target hard disk refers to a hard disk which is not subjected to RAID in the hard disks connected with the server RAID card;

a pairing reestablishment module: if the target hard disk has the matched hard disk which is consistent with the hard disk to be matched in model and the capacity of which is not less than that of the hard disk to be matched, selecting any matched hard disk to be matched with the hard disk to be matched, and reconstructing data on the hard disk to be matched to the matched hard disk.

7. A RAID group pairing apparatus according to claim 5 or 6 for avoiding corruption of hard disk data,

the hard disk dropping warning module to be paired gives a warning of dropping of the hard disk to be paired, namely, the hard disk to be paired lights up a related indicator lamp.

8. A RAID group pairing apparatus according to claim 5 or 6 for avoiding corruption of hard disk data,

the unpaired hard disk warning given by the unpaired hard disk judgment module is that the unpaired hard disk lights up a related indicator lamp.

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