CN104899113A - Cloud data backup system - Google Patents
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- CN104899113A CN104899113A CN201410077510.9A CN201410077510A CN104899113A CN 104899113 A CN104899113 A CN 104899113A CN 201410077510 A CN201410077510 A CN 201410077510A CN 104899113 A CN104899113 A CN 104899113A
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Abstract
The invention relates to a data backup system, in particular o a cloud data backup system. The cloud data backup system comprises a cloud computing server and a cloud data backup server, wherein the cloud data backup server is a VTL (Virtual Tape Library); the VTL consists of a plurality of disk arrays based on RAID (Redundant Array of Independent Disks) protection, and a distributed file storage system is formed; the VTL adopts a multi-controller parallel architecture, and realizes the on-line dynamic horizontal expansion of controllers; and the system performance is exponentially improved along with the increase of the controllers. The VTL used by the data backup system uses the multi-controller parallel architecture, and the distributed file storage system is used as a memory at the back end. Through a parallel technology, the on-line dynamic horizontal expansion of the controllers is realized, and the system performance is exponentially improved along with the controller increase; the dynamic horizontal expansion of the capacity is enabled through the back end distributed memory; during the capacity expansion, the inside I/O (input/output) speed is greatly accelerated, so that a qualitative leap of the integral performance of the VTL is achieved.
Description
Technical field
The present invention relates to a kind of data backup system, especially relate to a kind of cloud data backup system.
Background technology
Virtual, cloud computing, the greatly fast development of data technique change the application model of conventional I T, and along with cloud lands, more users concentrate on the places such as cloud application, cloud computing, cloud storage sight, and gradually have ignored the data protection under cloud environment.When user is when disposing cloud computing; due to cloud computing data calculating and store all carry out on cloud platform; the data in high in the clouds are by even more important; the reason of removing data-privacy and network attack, the data backup of complicated system architecture, the applied environment of the thin terminal of multi-user, virtualized application model, huge memory device, magnanimity is also for the data protection in high in the clouds brings new challenge.
In October, 2009, Microsoft Sidekick cellular service fault, made user cannot access Affiliates List, schedule and other personal information.These data are all stored on the responsible server of Microsoft.And after one week, owing to not backuping to data, Microsoft expresses possibility and makes user data lose completely, cause the self-examination of industry for cloud computing data security thus.
2011 03 month, Google's Gmail mailbox broke down, and Google confirms subsequently, and this Fault Estimation causes 150,000 user mails, label and associated person information to be lost.
On August 7th, 2012 is damaged due to machine room physical server disk, causes the customer data of grand cloud main frame to be lost at this point.Grand cloud suggestion user, " in order to avoid your windfall loss, please outside grand cloud main frame, also carries out data backup.”
The loss of data accident of cloud platform emerges in an endless stream, and each lesson tells people that data security can not be ignored, especially in today of cloud application popularization.The commerce services pattern such as enterprise's cloud dish, net dish, data center's trustship is covered the sky and the earth arrival, data center is not only the film of hundreds of GB on NAS, and being more user kernel data, these data corruption, loss will bring huge reputation to lose to cloud service provider.
The prerequisite of cloud service accelerated development depends on data, if data are dangerous, so cloud computing just really to become dimly discernible cloud.In recent years due to the high speed development of cloud computing, Internet of Things, huge data volume proposed a lot of challenges to conventional backup, and the data security in cloud epoch is faced with unprecedented challenge.
At present backup on the market mainly adopts mechanical type tape library to back up, Problems existing primarily of: security is low, and failure rate is high, recover slowly after corrupted data, backup storage system collaborative is lower, when the backup facing mass data, there is the situations such as inquiry difficulty.The maximum problem of traditional data salvo is that release time is long; relatively larger date restoring once needs the time of several days; and on cloud platform, after increasing frequent online interaction business has disapproved and gone wrong, several days time could run well.In addition, the standby time at night that mostly is that traditional data protection adopts does data backup, once go wrong, then what recover will be the data of the previous day, and the data that the same day, business produced may face whole loss, and this is insufferable for online interaction business.User is more and more higher for the requirement of RPO and RTO, to some online service needed recover ageing be minute level even second level, and state when recovering also needs to maintain fault former second or a few minutes, a kind of challenge newly beyond doubt of same conventional backup.
Summary of the invention
For overcoming the deficiencies in the prior art part, the invention provides a kind of cloud data backup system, low to solve the security that available data standby system exists, failure rate is high, recovers the problem such as slow after corrupted data.
The technical solution adopted in the present invention is: a kind of cloud data backup system, comprises cloud computing server and cloud data backup server, and wherein said cloud data backup server is VTL.
Described VTL is made up of multiple disk array protected based on RAID, forms distributed file storage system.
Described VTL adopts multi-controller parallel architecture, and achieve online dynamically extending transversely of controller, system performance increases with controller and increases progressively at double.
VTL (Virtual Tape Library, being called for short VTL) technology is the milestone in data backup field, this technology possesses that performance is high, failure rate is low, reliability are high, cost drops into the multinomial advantages such as low and operation cost is low, is subject to the favor of every profession and trade user.The concept of VTL is in fact very simple, and it is disk array hardware device in itself, but the form of but analog magnetic tape backup in software function.Therefore, for storage administrator, it is exactly a tape library, the same as management physical tape storehouse to its management.VTL mainly contains some advantage following:
1, relative to mechanical tape, VTL employs compatible tape backup management software and conventional backup flow process, and this makes the availability of equipment and the reliability of backup be significantly enhanced;
2, performance significantly improves, and can support the backup close to disk array limiting velocity and resume speed, and immunity virus, and data security is equal to common tape library;
3, resume work very easy, if desired data exists in the middle of VTL, then can not relate to any machine work, resume work just as the speed of Disk Backup;
4, VTL adopts the disk array based on RAID protection, thus the reliability of backup is improve some magnitudes compared with conventional tape backup.The MTBF(Mean interval of the magnetic disk media of enclosed construction itself) be generally more than 5 times of Open architecture tape-shaped medium's;
5, compatible good, FC, SCSI or iSCSI interfacing equipment of standard, compatible popular main process equipment and operating system;
6, practicality is good, consistent with existing tape library application mode, need not change the operating strategy of existing storage application software, protection customer investment;
7, VTL is electronic " mechanical arm " and " tape drive ", instead of mechanical hook-up that is exposed in mechanical tape storehouse, rapid wear, and the disk array based on RAID protection possesses degradation ability to work, and tool automatic alarm and online hot recovery capability.
As can be seen from above said content, VTL not only solves that conventional tape library maintenance load is high, backup crash rate is high and problem that Backup and Restore ability is not good, and have also been changed Disk Backup and easily to be deleted or by virus infections and to be not easy in SAN environment unified management and to optimize the inferior position used by mistake.
Beneficial effect: the VTL that the present invention adopts is owing to adopting multi-controller parallel architecture, and rear end adopts distributed file system as storage.By concurrent technique, achieve online dynamically extending transversely of controller, system performance increases with controller and increases progressively at double; And rear end distributed storage provides the dynamically extending transversely of capacity, and in capacity extension simultaneously, significantly promote inner I/O speed, thus make VTL overall performance obtain leaping of matter, efficiently solve the backup of magnanimity unstructured data and a recovery difficult problem, improve user at different levels to store and the resistance to overturning in each field such as safety, cloud computing architecture, large market demand and security in data, accelerate the paces that user profileization is built.
Embodiment
A kind of cloud data backup system, comprise cloud computing server and cloud data backup server, wherein said cloud data backup server is VTL.
Described VTL is made up of multiple disk array protected based on RAID, forms distributed file storage system.
Described VTL adopts multi-controller parallel architecture, and achieve online dynamically extending transversely of controller, system performance increases with controller and increases progressively at double.VTL aims at high-end enterprise's level customization, and based on multi-controller parallel architecture, rear end adopts distributed file system as storage.By concurrent technique, achieve online dynamically extending transversely of controller, though system performance controller increases and increases progressively at double; And rear end distributed storage provides the dynamically extending transversely of capacity, and in capacity extension simultaneously, significantly promote inner I/O speed, thus make VTL overall performance obtain leaping of matter.And at present this hot spot technology distributed being incorporated in VTL, speed aspect rises to GB/s level from original MB/s level, efficiently solves the backup of magnanimity unstructured data and a recovery difficult problem.
Most VTL (VTL) solution can be classified into memory device in the market.Fundamentally, memory device is exactly a physical equipment, and internal disk storage is wherein virtualized into a tape library or one or more tape drive.For example this kind of virtual tape library equipment has the StorageTek equipment of Oracle and the VTL 5000M model of Hitachi's data system.
Memory device is used to have a lot of advantage.First, owing to using equipment simulating tape drive or tape library, this mode can support most backup softwares.The more important thing is, memory device can provide backup and recovery operation faster than physical tape drive usually, because disk belongs to Nonlincar memory equipment, and data are usually through repeating deletion action.Another advantage is that enterprise can save the expense on tape because memory device uses disk.
The greatest drawback using memory device to replace physics tape backup is that VTL solution may become a Single Point of Faliure.Avoiding to protect the Backup Data on the equipment of being stored in losing, being necessary Backup Data types-copy.Many enterprises can use the scheme being called as disk-to-disk-to-tape, and what in VTL, namely realize content repeats deletion, and copies to tape.The additional gain that this mode is brought is to allow enterprise by Replica placement to other website, and this is quite important, because the disk in memory device is normally irremovable.
In some cases, can also use redundant storage devices, if a device fails, on redundance unit, data trnascription still can be used.
The location of virtual unit is to provide the every income similar with memory device with lower price.Generally, virtual unit with one independently virtual machine sell, can be Vmware or Hyper-V.Buying virtual unit can remove the investment of physical hardware aspect from, and therefore this scheme saves cost.But, virtual unit uses the existing storage resources of virtual architecture, normally based on SAN framework.Some use-cases of virtual unit comprise the AWS storage gateway of Amazon and fly the NSS virtual unit of health.
For most of enterprise, the result of use of virtual unit is pretty good, but it still has two shortcomings.First be the resource that virtual unit takies in your server virtualization architecture.In some cases, storage space, internal memory, processor clock frequency and magnetic disc i/o are more suitable for production work load, but not backup.
Secondly, virtual unit is usually much lower than the processing power of physical equipment.Physical equipment generally can configure suitable memory capacity when buying, and needs progressively to increase along with enterprise stores.Such as, some virtual tape library equipments can hold the storage space of 4TB to 68TB.By contrast, the population size of virtual unit is limited to Hypervisor.In general, virtual unit can only support at most the storage of 5TB.
The present invention can realize the fast quick-recovery of minute level, and user without the need to waiting for very long release time as conventional backup software.Once there is storage hardware fault, store the situations such as data failure, rapid pipe connecting can be carried out by IDP, ensure client traffic system stable operation; Reply people misses the logic faults such as deletion for maloperation, directly can quickly recover to the state before a few minutes, for service trade provides high-grade Data Protection Scheme.Guest can be supported to back up and Off-host Backup etc.; can real-time tracing virtual machine position, ensure the accuracy to virtual machine backup, and simple to operate; support to dispose in virtual machine backup set, provide the data protection towards large-scale cloud computing center virtualized environment.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (3)
1. a cloud data backup system, comprises cloud computing server and cloud data backup server, it is characterized in that: described cloud data backup server is VTL.
2. a kind of cloud data backup system according to claim 1, is characterized in that: described VTL is made up of multiple disk array protected based on RAID, forms distributed file storage system.
3. a kind of cloud data backup system according to claim 1, is characterized in that: described VTL adopts multi-controller parallel architecture.
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| CN201410077510.9A CN104899113A (en) | 2014-03-05 | 2014-03-05 | Cloud data backup system |
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| CN201410077510.9A CN104899113A (en) | 2014-03-05 | 2014-03-05 | Cloud data backup system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015889A (en) * | 2017-04-12 | 2017-08-04 | 广州市品高软件股份有限公司 | A kind of implementation method of the multi-user virtual tape library based on cloud computing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015889A (en) * | 2017-04-12 | 2017-08-04 | 广州市品高软件股份有限公司 | A kind of implementation method of the multi-user virtual tape library based on cloud computing |
| CN107015889B (en) * | 2017-04-12 | 2019-11-22 | 广州市品高软件股份有限公司 | A kind of implementation method of the multi-user virtual tape library based on cloud computing |
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