CN107590030A - A kind of method, apparatus and system of data recording on tape backup - Google Patents

Abstract

The invention discloses a tape data backup method, comprising: receiving data to be backed up; backing up the data to a local tape; backing up the data on the local tape to a storage device in a different place through a remote server superior. In the present invention, by backing up a copy of data on the local and remote devices, on the basis of ensuring that the backup data can be quickly obtained locally, the security of the data is improved, and the risk of huge losses due to data loss is reduced. The device and system for tape data backup provided by the present invention have the above beneficial effects.

Description

Method, device and system for tape data backup

technical field

The invention relates to the field of data storage, in particular to a tape data backup method, device and system.

Background technique

Key business data in information systems is one of the most important assets of users. The reliability, integrity and security of data are related to the viability and competitiveness of important industries and enterprises. When the computer system suffers from data disasters such as natural disasters, computer crimes, viruses or operating errors, it is very important to have a backup data.

At present, the backup of data is basically to back up the data from the client to the local server, because the backup data and the original data are located in the same area, and the problem of simultaneous damage is prone to occur.

Contents of the invention

The object of the present invention is to provide a method for tape data backup, which solves the problem that the backup data and original data of the tape data are easily damaged at the same time, and improves the security of the backup data.

Another object of the present invention is to provide a tape data backup device and system.

In order to solve the above technical problems, the present invention provides a method for tape data backup, comprising:

receiving the data to be backed up; backing up the data to a local tape; backing up the data on the local tape to an off-site storage device through an off-site server.

Wherein, said backing up said data to a local tape comprises:

Detect the local tape that is not full of data in the local tape library, and use the local tape that is not full of data as the local tape that currently backs up the data. When the local tape is full of data, the local tape that is full of data will be The local tape is closed.

Wherein, the said backing up the data to the off-site storage device through the off-site server includes:

Detecting a local tape that is full within a first preset time period in the tape library, and backing up data in the full local tape to an off-site storage device.

Wherein, the backup of the data in the full local tape to the off-site storage device includes:

Within the second preset time period, back up the full data in the local tape to the off-site storage device.

Wherein, the said backing up the data to the off-site storage device through the off-site server includes:

The data is backed up to an off-site storage device through the DPS server based on the DPS software.

The present invention also provides a device for tape data backup, including:

The receiving module is used to receive the data to be backed up;

The local backup module is used for backing up the data on the local tape;

The off-site backup module is used to back up the data to the off-site storage device through the off-site server.

Wherein, the local backup module is specifically configured to detect a local tape that is not full of data in the local tape library, and use the local tape that is not full of data as the local tape that currently backs up the data until the local tape is written full data.

Wherein, the off-site backup module is specifically configured to detect a full local tape in the tape library, and back up data in the full local tape to an off-site storage device.

Wherein, the off-site backup module is specifically configured to detect a full local tape in the tape library within a predetermined time period.

The present invention also provides a system for tape data backup, including:

A local DPS client, a local DPS server, a local tape, an off-site DPS server, and an off-site storage device; wherein, the local DPS client is connected to the local DPS server for sending to the local DPS server Data to be backed up; the local DPS server is connected to the local tape, and is connected to the off-site DPS server through the network, for receiving the data to be backed up, and backing up the data to the local tape; The local DPS server is connected to the off-site DPS server through the network, and the data is backed up to the off-site storage device through the off-site DPS server, wherein the off-site server is related to the off-site storage device connect.

A method for tape data backup provided by the present invention, one copy of data is backed up locally and one copy at a different place, and the local backup data is generally stored in the same area as the original data, for example, stored on a device in the same network area, or stored on a device that is physically closer. For data stored in an area, if a natural disaster or a computer virus occurs, the local data and the original data are easily damaged or lost at the same time. For off-site backup data, remote data transmission is more difficult than local data transmission because the off-site devices and local devices that store off-site backup data need to be connected through a remote network. Therefore, there are two copies of backup data at the same time. When the local device needs to obtain relevant data, it can be obtained directly from the local storage device conveniently and quickly. When the local data is damaged or lost, it can be restored through the off-site backup data. Therefore, the method provided by the present invention ensures the security of the data on the basis of ensuring the convenient use of the data, and greatly reduces the risk of loss of important data of various companies or countries.

The device and system for tape data backup provided by the present invention have the above beneficial effects.

Description of drawings

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

Fig. 1 is the flowchart of the method for tape data backup that the embodiment of the present invention provides;

Fig. 2 is the flowchart of the method for tape data backup provided by another embodiment of the present invention;

Fig. 3 is a structural block diagram of an apparatus for tape data backup provided by an embodiment of the present invention.

detailed description

The core of the present invention is to provide a tape data backup method, which improves data security and reduces the risk of heavy losses due to data loss on the basis of ensuring that data can be quickly obtained through local storage devices. Another core of the present invention is to provide a tape data backup device and system.

In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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 invention.

The flowchart of the method for tape data backup provided by the embodiment of the present invention is shown in Figure 1, and the method may include:

Step S101: Receive data to be backed up.

Step S102: Backup the data to a local tape.

Step S103: Back up the data on the local tape to the off-site storage device through the off-site server.

It should be noted that the data to be backed up received in step S101 is generally sent to the server by the client that stores the original data, and the server backs up the data to a tape connected to the server, and then the server backs up the data Back up to a remote off-site storage device, which can also be a magnetic tape.

In the actual application process, if only the original data is backed up locally, due to the short distance between the client storing the original data and the local server of the local backup data, or in the same network environment, if an earthquake, fire, etc. In the event of a disaster, the original data and local backup data are likely to be lost at the same time. If they are invaded by viruses, since the client and server are located in the same network environment, they are likely to be harmed by viruses at the same time, resulting in the loss of all data. However, if you only back up data in a remote location, due to the high network requirements for remote data backup, if the network condition is not good, it is likely to cause data backup failure, and when performing remote data backup, it will also affect other devices using the network . And if the original data is lost, it takes longer to obtain data from off-site storage devices than from local disks. Therefore, in the present invention, the data is now backed up locally, and then backed up in a different place. When only the original data is lost, the data can be obtained directly from the local. The local backup data is backed up in another place. Therefore, the method for backing up data provided by the present invention improves data security on the basis of ensuring fast data acquisition.

In addition, the sequence of steps S102 and S103 may not be limited, but for remote storage of data in different places, the time spent is generally longer and the network requirements are higher. Unexpected conditions during the backup process lead to The possibility of backup failure is also relatively high, and it is relatively easy to store backup data locally, and it takes less time to back up data on the local storage device. Backup data fails, thereby causing data loss on the server side. A more preferred implementation is to perform local backup first and then perform remote backup.

Based on the foregoing embodiments, in another specific embodiment of the present invention, backing up data to a local tape may specifically include:

Detect the local tape that is not full of data in the local tape library, and use the local tape that is not full of data as the local tape that currently backs up the data. When the local tape is full of data, the local tape that is full of data will be The local tape is closed.

It should be noted that the local tape library generally includes multiple local tapes. When data needs to be written, the data can be written to a local tape that is not full for data backup. When a local tape is full, the When the local tape is closed, it is no longer allowed to write data into the local tape, avoiding the erasure of the original data, and ensuring the security of the data in the local tape.

In addition, if the data has not been written yet and the local tapes in the local tape library are full and closed, you can add new local tapes to the local tape library to expand the storage space of the tape library.

Based on the above-mentioned embodiment, considering that if the data is backed up in the off-site storage device immediately after each time the data is backed up in the local tape, for each local tape, it is undoubtedly necessary to back up the data frequently in the off-site for many times, and because the off-site Backup data has relatively high requirements on the network, and frequent remote backup of data will inevitably affect the use of the network by other devices, thereby reducing the performance of the network. Therefore, in another specific embodiment of the present invention, the data The specific process of backing up to an off-site storage device through an off-site server may include:

Detecting a local tape that is full within a first preset time period in the tape library, and backing up data in the full local tape to an off-site storage device.

Specifically, in order to reduce the number of off-site backup data, the data on the local tape can be backed up off-site after the local tape is filled with data. However, if each local tape is full of data quickly, frequent off-site backups are still required. data. For this reason, a certain time period can be set, and the local tape library is queried at regular intervals, and if there is a full local tape, the data in the local tape is stored off-site. Considering that the full local tapes in the local tape library include local tapes that have not been backed up in other places, there may also be local tapes that have been backed up in another place. In order to avoid repeated backups, you can only query whether there are local tapes that are scheduled If it is full within the time period, the predetermined time period is generally set as the time period from the last time the full local tape was queried to the current moment.

Based on the above-mentioned embodiments, considering that backup data in different places has higher requirements on the network, for the peak hours of using bandwidth, if the backup is performed in different places, the backup will often fail or seriously affect the use of the network by other devices. For this reason, in the present invention In another specific embodiment of , backing up the data in the full local tape to the off-site storage device may specifically include:

Within the second preset time period, back up the full data in the local tape to the off-site storage device.

It should be noted that the second preset time period is generally set in a time period when the network bandwidth is not busy. For example, the network broadband is basically not used during the period between 0:00 and 2:00 in the morning every day, so this time period can be set as the second time period. For the preset time period, the corresponding first preset time period can be from zero o'clock every day to zero o'clock the next day, and within the fixed second preset time period, the full local tape is queried before off-site backup. But this is not the only way of implementation. For example, it can also be queried every two hours to see if there is a local tape that is full within two hours from the current time. If so, record the local tape, and at midnight Then perform remote backup.

Based on any of the above embodiments, in another specific embodiment of the present invention, backing up the data to the off-site storage device through the off-site server may specifically include:

The data is backed up to an off-site storage device through the DPS server based on the DPS software.

It should be noted that, since the data stored in the local disk may be related to each other, after off-site backup, the data backed up on the off-site storage device must not lose the contact information between the local tape data, otherwise The data stored in different places also loses the use value of the data itself. For this reason, in the present invention, data can be backed up in different places based on DPS software, which can effectively ensure the integrity of the data backed up in different places.

Based on any of the above-mentioned embodiments, a flow chart of a method for tape data backup provided in another embodiment of the present invention is shown in Figure 2, the method may include:

Step S201: Receive the data to be backed up sent by the DPS client.

Step S202: Detect whether there is a local tape not full of data in the local tape library, if yes, go to step S203, if not, go to step S204.

Step S203: adding a new local tape to the local tape library.

Step S204: Write data to the local disk that is not full.

Step S205: Determine whether the local disk is full after writing data, if yes, go to step S206, if not, go to step S207.

Step S206: Shutting down the local disk full of data.

Step S207: Determine whether there is a local disk that is full within the first preset time period, if yes, go to step S208, if not, go to step S201.

Step S208: Backing up the full data in the local disk to the off-site storage device within the second preset time period.

The following is an introduction to the tape data backup device provided by the embodiment of the present invention. The tape data backup device described below and the tape data backup method described above can be referred to in correspondence.

Fig. 3 is the structural block diagram of the device of tape data backup that the embodiment of the present invention provides, and the device of referring to Fig. 3 tape data backup can comprise:

A receiving module 100, configured to receive data to be backed up;

The local backup module 200 is used for backing up the data on the local tape;

The off-site backup module 300 is configured to back up the data to an off-site storage device through an off-site server.

Optionally, the local backup module 200 is specifically configured to detect a local tape that is not full of data in the local tape library, and use the local tape that is not full of data as the local tape that currently backs up the data until the The local tape is full of data.

Optionally, the off-site backup module 300 is specifically configured to detect a full local tape in the tape library, and back up data in the full local tape to an off-site storage device.

Optionally, the remote backup module 300 is specifically configured to detect a full local tape in the tape library within a predetermined time period.

The tape data backup device of this embodiment is used to implement the aforementioned tape data backup method, so the specific implementation of the tape data backup device can be seen in the embodiment part of the **method above, for example, the receiving module 100, the local The backup module 200 and the off-site backup module 300 are respectively used to implement steps S101, S102 and S103 in the above-mentioned tape data backup method. Therefore, its specific implementation methods can refer to the descriptions of the corresponding parts of the embodiments, and will not be repeated here.

Embodiments of the present invention provide a system for tape data backup, which may include:

Local DPS client, local DPS server, local tape, remote DPS server and remote storage device;

Wherein, the local DPS client is connected to the local DPS server, and is used to send data to be backed up to the local DPS server;

The local DPS server is connected to the local tape, and is connected to the remote DPS server through the network, for receiving data to be backed up, and backing up the data to the local tape;

The local DPS server is connected to the off-site DPS server through the network, and the data is backed up to the off-site storage device through the off-site DPS server, wherein the off-site server and the off-site storage device connected.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related part, please refer to the description of the method part.

Professionals can further realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software or a combination of the two. In order to clearly illustrate the possible For interchangeability, in the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known storage medium.

The method and device for tape data backup provided by the present invention have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and 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, some improvements and modifications can 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 (10)

1. A kind of 1. method of data recording on tape backup, it is characterised in that including：

   Receive data to be backed up；

   By backuping on local tape for the data；

   The data on the local tape are backuped in the storage device of strange land by strange land service end.
2. 2. according to the method for claim 1, it is characterised in that described to wrap backuping on local tape for the data Include：

   The local tape for not writing full data in local tape library is detected, and not write the local tape of full data as currently The local tape of the data is backed up, when the local tape writes full data, is then closed the local tape for writing full data Close.
3. 3. according to the method for claim 2, it is characterised in that it is described the data are backuped to by strange land service end it is different Include in ground storage device：

   Detect and write full local tape in the tape library in the first preset time period, and will write in the full local tape Data backup in the storage device of strange land.
4. 4. according to the method for claim 3, it is characterised in that the data backup that will be write in the full local tape Include on to strange land storage device：

   In the second preset time period, the data write in the full local tape are backuped into strange land storage device.
5. 5. according to the method described in any one of Claims 1-4, it is characterised in that described to service the data by strange land End, which backups to strange land storage device, to be included：

   The data are backuped into strange land storage device based on DPS softwares by DPS service ends.
6. A kind of 6. device of data recording on tape backup, it is characterised in that including：

   Receiving module, for receiving data to be backed up；

   Local backup module, for the data to be backuped into local tape；

   Remote backup module, for the data to be backuped into strange land storage device by strange land service end.
7. 7. device according to claim 6, it is characterised in that the local backup module is specifically used for detecting local tape The local tape of full data is not write in storehouse, and not write the local tape of full data as the sheet of data described in current backup Ground tape, until the local tape writes full data.
8. 8. device according to claim 7, it is characterised in that the remote backup module is specifically used for detecting the tape Full local tape has been write in storehouse, and the data write in the full local tape have been backuped in the storage device of strange land.
9. 9. according to the method for claim 8, it is characterised in that the remote backup module was specifically used in the predetermined time In section, detect and full local tape has been write in the tape library.
10. A kind of 10. system of data recording on tape backup, it is characterised in that including：

    Local DPS clients, local DPS service ends, local tape, strange land DPS service ends and strange land storage device；

    Wherein, the local DPS clients are connected with the local DPS service ends, for being sent out to the local DPS service ends Send data to be backed up；

    The local DPS service ends are connected with the local tape, and are connected by network with strange land DPS service ends, use In receiving data to be backed up, by backuping on local tape for the data；

    The local DPS service ends are connected by network with the strange land DPS service ends, and the data are passed through into the strange land DPS service ends are backuped in the strange land storage device, wherein the strange land service end is connected with the strange land storage device.