CN107402849B - A method of backup and recovery based on K-UX system - Google Patents

Abstract

The invention discloses a backup and recovery method based on a K-UX system, which comprises the following steps: step 1, connecting a hard disk externally on a server as a backup disk, and backing up a K-UX system of the server to the backup disk by adopting dd and tar; step 2, thoroughly destroying the K-UX system; and 3, restoring the K-UX system through dd and tar. By adopting a mode of combining dd and tar for backing up the K-UX system, the compressed backup space can be considered, the reliability of system recovery can be improved, the maintenance efficiency of the system is improved, and the maintenance cost is reduced.

Description

A method of backup and recovery based on K-UX system

technical field

The invention relates to the technical field of cloud computing data processing, in particular to a backup and recovery method based on a K-UX system.

Background technique

In the era of "Internet +", the server is the support of data analysis, and its reliable and stable operation is a strong guarantee for the stable operation of each enterprise it serves. However, due to various uncertain factors, such as power failure, human error, etc., it always leads to data loss on the server. Therefore, server system backup and recovery technology has become the top priority in this field.

At present, high-end fault-tolerant servers are selling well in the industry. Although there are many technologies for data backup and recovery, the backup and recovery of server K-UX systems are relatively rare. Corresponding backup and recovery systems are urgently needed to ensure that such servers can be more Reliable operation, reducing losses caused by various possible unstable factors.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a backup and recovery method based on the K-UX system, which can quickly restore the system, improve the maintenance efficiency of the system and reduce the maintenance cost.

In order to solve the above-mentioned technical problems, an embodiment of the present invention provides a K-UX system-based backup and recovery method, including:

Step 1, an external hard disk is used as a backup disk on the server, and dd and tar are used to back up the K-UX system of the server to the backup disk;

Step 2, completely destroy the K-UX system;

Step 3, restore the K-UX system through dd and tar;

The step 1 includes:

An external hard disk is used as a backup disk on the server, and the backup disk is divided into a first area and a second area;

Utilize dd to copy the bootstrap efi file of the K-UX system of the server to the first area of the backup disk;

Adopt tar to compress the root partition file of the K-UX system of the server and copy it to the second area of the backup disk;

The step 2 includes:

unmounting the backup disk from the server;

Using rm, the K-UX system of the server is incapacitated and irreparably damaged.

Wherein, the step 3 includes:

connecting a second storage with a second system installed to the server;

Start the server, and mount the damaged system disk and the backup disk on the second system;

Use dd to copy the bootstrap efi file backed up in the first area of the backup disk to an area of the damaged system disk;

Use tar to decompress the root partition file of the second area on the backup disk to the second area of the damaged system disk.

Wherein, after the step 3, it also includes:

Step 4: Record and output the dd copy, tar compression and decompression, and rm deletion of the K-UX system as log records.

Wherein, after described step 4, also comprise: judge whether there is the operation instruction that dd copy, tar compression and decompression or rm delete to described K-UX system;

If so, verify the operation instruction, and execute the operation instruction after the verification is passed.

Wherein, the second memory is a U disk or a hard disk.

Wherein, the storage space of the U disk is 8G~16G.

Compared with the prior art, the method for backup and recovery based on the K-UX system provided by the embodiment of the present invention has the following advantages:

The method for backup and recovery based on the K-UX system provided by the embodiment of the present invention includes:

Step 1, an external hard disk is used as a backup disk on the server, and dd and tar are used to back up the K-UX system of the server to the backup disk;

Step 2, completely destroy the K-UX system;

Step 3, restore the K-UX system through dd and tar.

The method for backup and recovery based on the K-UX system, by using the combination of dd and tar to back up the K-UX system, can not only compress the backup space, but also improve the reliability of the system recovery and improve the system reliability. Maintenance efficiency reduces maintenance costs.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic flowchart of steps of a specific implementation of a method for backup and recovery based on a K-UX system provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of steps of another specific implementation of a method for backup and recovery based on a K-UX system provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIGS. 1 to 2. FIG. 1 is a schematic flowchart of steps of a specific implementation of a K-UX system-based backup and recovery method provided by an embodiment of the present invention; A schematic flowchart of steps of another specific implementation manner of a method for backup and recovery of a UX system.

In a specific embodiment, the method for backup and recovery based on the K-UX system includes:

Step 1, an external hard disk is used as a backup disk on the server, and dd and tar are used to back up the K-UX system of the server to the backup disk;

Step 2, completely destroy the K-UX system;

Step 3, restore the K-UX system through dd and tar.

By using the combination of dd and tar to back up the K-UX system, it can not only compress the backup space, but also improve the reliability of system recovery, improve the maintenance efficiency of the system, and reduce maintenance costs.

In order to further improve the efficiency of system backup, in one embodiment of the present invention, the boot boot efi file in the system disk and the file in the root partition (including data) are backed up to two areas of the backup disk, namely, The step 1 includes:

An external hard disk is used as a backup disk on the server, and the backup disk is divided into a first area and a second area;

Utilize dd to copy the bootstrap efi file of the K-UX system of the server to the first area of the backup disk;

Use tar to compress and copy the root partition file of the K-UX system of the server to the second area of the backup disk.

By partitioning the backup disk, the boot boot efi file and the root partition file are copied to the designated area of the backup disk, so that the two can be performed at the same time due to the different operation areas during the operation process, which greatly improves the backup efficiency. The time required for backup is reduced, and the maintenance efficiency of the system is improved.

In the present invention, in the process of system backup and recovery, the original system needs to be damaged and cleared so that it does not affect the normal operation of the new system and can reduce the utilization efficiency of storage space. Therefore, in an implementation of the present invention In an example, the step 2 includes:

unmounting the backup disk from the server;

Use rm to completely destroy the K-UX system.

By unloading the backup disk from the server first, it avoids possible damage to the backup system in the backup disk when rm is used to completely damage the K-UX system subsequently, so that the original K-UX system can be directly damaged. The -UX system executes all deletion instructions without having to select a region, which improves the reliability of the backup system.

However, after the K-UX system is backed up and destroyed, the system needs to be restored. In order to improve the flexibility and security of the operation, in an embodiment of the present invention, the step 3 includes:

connecting a second storage with a second system installed to the server;

Start the server, and mount the damaged second system and the backup disk on the second system;

Use dd to copy the bootstrap efi file backed up in the first area of the backup disk to an area of the damaged system disk;

Use tar to decompress the root partition file of the second area on the backup disk to the second area of the damaged system disk.

By operating independently with the second memory on which the second system is installed, the flexibility of system recovery can be improved. The second system here uses dd to copy the bootstrap efi file backed up in the first area of the backup disk to the first area of the damaged system disk by hanging the damaged system disk and the backup disk. ; Use tar to decompress the root partition file of the second area on the backup disk to the second area of the damaged system disk, so that the recovery of the K-UX system can be realized.

It should be pointed out that K1 in the present invention is a high-end fault-tolerant server of Inspur, K-UX Inspur is a self-developed Linux operating system, dd is a replication technology under the K-UX system, and tar is a K-UX system. -The compression command under the UX system, rm is a delete command under the K-UX system.

The method for backup and recovery based on the K-UX system in the present invention is not only applicable to the Linux operating system, but also to the backup and recovery of other systems.

And in order to further realize the detection of operational errors that may occur in the backup and recovery of the system and improve the high efficiency of system maintenance, after the step 3, it also includes:

Step 4: Record and output the dd copy, tar compression and decompression, and rm deletion of the K-UX system as log records.

By recording and outputting the instructions received by the K-UX system during the whole process of system backup and recovery, when a new system failure occurs, the cause of the failure can be quickly located and the reliability of system recovery is improved.

And in order to further improve the security of the backup and recovery of the system, after the step 4, also include: judging whether there is an operation instruction to the dd copy, tar compression and decompression or rm deletion of the K-UX system;

If so, verify the operation instruction, and execute the operation instruction after the verification is passed.

In the process of system backup and recovery, the verification of instructions is carried out, and it is clear that the operator with this authority is backing up the system instead of illegal operations by other personnel, which can reduce the possibility of system data loss and ensure the security of system data. sex.

The second storage is a U disk or the hard disk.

In order to further improve the flexibility of system recovery, the second memory is a U disk, and the storage space of the U disk is 8G~16G. Of course, the space of the U disk here refers to the actual usable space, and its storage space can be reasonably selected according to the total amount of data of the startup file and the root partition. Using U disk for system recovery is that the U disk system operates independently, which improves the flexibility and safety of the operation.

To sum up, the method for backup and recovery based on the K-UX system provided by the embodiment of the present invention, by using the combination of dd and tar to back up the K-UX system, can not only compress the backup space, but also improve the system recovery Yes, reliability improves the maintenance efficiency of the system and reduces maintenance costs.

The method for backup and recovery based on the K-UX system provided by the present invention has been described in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (6)

1. A method for backup and recovery based on a K-UX system is characterized by comprising the following steps:

step 1, connecting a hard disk externally on a server as a backup disk, and backing up a K-UX system of the server to the backup disk by adopting dd and tar;

step 2, thoroughly destroying the K-UX system;

step 3, restoring the K-UX system through dd and tar;

the step 1 comprises the following steps:

externally connecting a hard disk on the server as a backup disk, and dividing the backup disk into a first area and a second area;

copying a boot efi file of a K-UX system of the server to a first area of the backup disc by dd;

compressing a root partition file of a K-UX system of the server by adopting tar and copying the root partition file to a second area of the backup disc;

the step 2 comprises the following steps:

uninstalling the backup disc from the server;

and (4) adopting rm to damage the K-UX system of the server, wherein the K-UX system is disabled and cannot be self-repaired.

2. The method for K-UX system based backup and recovery according to claim 1, wherein the step 3 includes:

connecting a second storage with a second system installed with the server;

starting the server, and mounting the damaged system disk and the backup disk on the second system;

copying the boot efi file backed up on the first area of the backup disc to an area of the system disc that is damaged using dd;

and decompressing the root partition file of the second area on the backup disc to the damaged second area of the system disc by adopting tar.

3. The method for K-UX system based backup and recovery according to claim 2, further comprising, after step 3:

and 4, taking dd copying, tar compressing and decompressing and rm deleting of the K-UX system as log records and outputting the log records.

4. The method for the backup and recovery based on the K-UX system of claim 3, wherein after the step 4, the method further comprises the steps of judging whether operation instructions of dd copying, tar compressing and decompressing or rm deleting to the K-UX system occur;

and if so, verifying the operation instruction, and executing the operation instruction after the verification is passed.

5. The method for K-UX system based backup and recovery according to claim 4, wherein the second storage is a usb disk or a hard disk.

6. The method for backup and recovery based on K-UX system of claim 5, wherein the storage space of the U disk is 8G ~ 16G.

Images