KR20020076028A - Method of Operating with Web Hard using CDN(Content Delivery Network) - Google Patents

Abstract

PURPOSE: A web-hard operation and management method using CDN(Content Delivery Network) is provided to transmit/receive data to/from a conventional web storage device on Internet using a cache server of CDN. CONSTITUTION: A conventional global web storage system(510) is positioned at the Internet network. A local web storage system(500) is located at a cache server(210) provided by a CDNSP(CDN Service Provider). An ISP(Internet Service Provider) subscriber or a local network user can determine whether the data stores to the global web storage system(510) or the local web storage system(500) according to kinds and characteristics of data. That is, the data for holding in common with the same ISP subscribers or local network users is stored to the local web storage system(500) and the data for holding in common with all Internet users is stored to the global web storage system(510).

Description

Method of Operating and Web Hard using CDN (Content Delivery Network)

The present invention provides a method for transmitting and receiving data using a cache server of a CDN on an existing web storage device on the Internet, and a web storage device mounted directly on a cache server of a CDN, and then transmitting and receiving data to the web storage device. The present invention relates to a method of replicating data from a web storage device mounted directly on a CDN's cache server to a web storage device on another cache server. It is divided into storage systems, ISPs or routers, ISP subscribers and local network users, and provides high-speed data backup and management method through CDN's cache server according to the location and topology of web storage devices on CDN.

The Internet was developed to prevent the spread of some of the physical network losses in the 1960s, through the ARPANET, which connected four hosts in the United States, and to the National Science Foundation's supercomputer-to-computer communications. In this development, the Internet has a relatively small effect on the entire network system even if new nodes are added or deleted during operation, and it enables various heterogeneous data communication. Due to this feature, the Internet is a network connecting a host and a host, and is separating the network component of the Internet into a server providing an Internet service and a client receiving the service. This client server system has the advantage that it is easy to maintain and manage and reduce compatibility problems because the server handles all the tasks related to the operation. However, when a large number of users connect, The same serious problem is included.

FIG. 1 is a simple block diagram of a general method of connecting a computer to the Internet, connecting to a content provider 100, and receiving various services from the CP 100.

Representative methods of connecting a computer to the Internet include a method of connecting an Internet service provider (ISP) 120, which is developed to connect an offline personal computer to the Internet, and a local area network of a company, a school, a public office, or a research institution. There is a method using a dedicated Internet line used to connect a network to the Internet.

Among the methods of accessing the Internet using the ISP (120), representative methods that are commercially available include a method using a modem and a public switched telephone network (PSTN) network, a method using an integrated services digital network (ISDN), There is a method of connecting to the Internet using an Asymmetric Digital Subscriber Line (ADSL), and a method of using a cable modem. In addition, a consumer DSL (CDSL), a high bit-rate DSL (HDSL), and an IDSL are used. There are various methods such as (ISDN DSL), Rate-Adaptive DSL (RADSL), Symmetric DSL (SDSL), Unidirectional DSL (UDSL), and Very High Data Rate DSL (VDSL).

To access the Internet by using a modem and a PSTN network, a voice-based public telephone network including a commercial network of a telecommunications company and a state-owned network is used by using a modem installed in a personal computer and a modem installed in an Internet provider system of an ISP company. How to access the internet. Modem is a device that converts an analog signal into a digital signal, and converts a digital signal into an analog signal, the characteristic of the Internet connection method using a modem is that it communicates using the voice signal area of the PSTN network.

The method of accessing the Internet using ISDN is a method of integrating and transmitting analog data such as voice and digital data together through the same network, and the CCITT / ITU (Comite Consultatif Internationale de Telegraphique et Telephonique or Consultative Committee) Using the on International Telephone and Telegraphy / International Telecommunications Union standard, an ISDN adapter is installed in an Internet-providing system for personal computers and ISPs, and provides Internet digital data communications with voice signal telephony services using a single telephone line. .

Accessing the Internet using ADSL is the first commercially available DSL (Digital Subscriber Line) technology.It is a method of connecting analog data and digital data to the same network using an ISP company and one telephone line like ISDN. Since the bandwidth for transmitting digital signals is higher than the analog bandwidth, and the download bandwidth is higher than the upload bandwidth and the download bandwidth, it is an internet access method developed for downward-oriented Internet services such as video on demand (VOD) services.

In order to access the Internet using a cable modem, a personal computer is connected to a cable TV line using a cable modem, which is connected to a cable modem termination system (CMTS) of a cable broadcasting company, ISP, using a coaxial cable. To provide services. The CMTS of a cable station is a device that converts cable modem data into Internet packet data, routing for local data in the cable system, filtering to protect cable operators from unwanted hacking, and traffic shaping to ensure subscriber quality of service. Provides features including

In addition to the methods described above, accessing the Internet using an ISP 120 such as CDSL, HDSL, IDSL, RADSL, SDSL, UDSL, and VDSL differs only in transmission speed, transmission method, distance limit, and application field. It is a method of Internet access based on DSL technology.

The method of accessing the Internet using a dedicated Internet line is to connect a local area network (LAN), which is a computer that has been assigned a fixed IP address, to a separate network using the same transmission protocol. A router 130, which is a device, or a switch, which is a network device that selects a path or a circuit for transmitting unit data to a next destination, is connected to the Internet, which is a wide area network (WAN). Way.

In the above-described Internet access method, the ISP provider's Internet providing system or router 130 or switch to the CP 100 through the Internet is called Middle-Mile (110). Alternatively, the router 130 or the switch may be referred to as last-mill 140.

In general, the transmission delay in Last-Mile 140 refers to system expansion, traffic management, and the number of simultaneous users connected to a line when ISP is connected to the Internet using ISP 120. It can be solved by limiting, and even when connecting to the Internet using a dedicated Internet line can be solved relatively easily through system expansion of the router 130 or the switch. However, transmission delay in the Middle-Mile 110 is almost impossible to solve only by system expansion of an ISP company or a router 130 or a switch due to the characteristics of the Internet.

The most representative cause of transmission delay in Middle-Mile 110 is due to structural limitations in the network design of the Internet. As described above, the Internet is designed to go through many nodes in connection between hosts that are geographically close to each other, so that some physical network loss does not reach the whole. The size and scope of the world is expanding indefinitely beyond control. Therefore, the data packet of the Internet is missed while passing through a number of nodes, retransmission occurs frequently, which is recognized as the biggest cause of the transmission delay in the Middle-Mile (110).

The transmission delay problem in the Middle-Mile (110) has already been raised for a long time, and many studies have already been made and some of them have been put into practical use. Representative solutions for current transmission delay solutions include caching, load balancing, and traffic management, as well as server upgrades or expansions. Through the Internet Data Center (IDC), which distributes data, methods to minimize the burden on the server are being used. However, the above-mentioned solutions are not fundamental solutions of transmission delays due to missing data packets and retransmissions, and have the disadvantage of excessive effort or additional investment compared to the effects.

2 is a simple block diagram in which a CDN cache server 210, a content provider 100, an ISP 120 or a router 130, and Internet users using the CDN are connected.

The CDN cache server 210 is a server system that is strategically installed in a specific local area network such as an Internet network, a LAN, and a MAN (Metropolitan Area Network) operated by a CDNSP (CDN Service Provider) 200. The CDNSP 200 is a CDN service provider that efficiently manages a cache server network installed in a local network as described above. The CDNSP 200 uses a cache server 210 to establish a middle-mile between a content provider 100 and an Internet user. Minimize).

The CP 100 is a web server on the Internet that provides content to Internet users. When a content transmission request is received from the Internet user, the CP 100 refers to the CDNSP 200 and the Middle-Mile 110 with the corresponding Internet user. The content is replicated to the cache server 210 which is the minimum, and a substantial task of allowing the Internet user to receive the content from the cache server 210 is performed.

The ISP 120 or router 130 provides an edge space for installing the cache server 210 and connects the CDN to Internet users existing on the subscriber or local network of the ISP 120. Act as a gateway. Accordingly, subscribers using the same ISP 120 in the same region and users of the same region network are provided with the CDN service through the same cache server 210.

Internet users who receive content through the CDN connect to the CDN through a web browser without the use of special plug-in programs or software, and the Internet user can receive high-level content with little transmission delay.

3 is a simple block diagram of a web storage device using a web storage system 300 on the Internet as a personal storage device.

The web storage device is used together with a storage device mounted on a personal computer in a storage space on the Internet. After the mass storage system 300 is established on the Internet, the storage of an ISP subscriber or a local network user connected to the Internet is stored. To use it as a device. Web storage is similar to the File Transfer Protocol (FTP), which transfers and stores data from a personal computer to a storage space on the Internet from the system side, but in terms of the user interface it is used as an internal storage device of a personal computer. The characteristics of the web storage device are that data is divided into private data and public data, and the shared data is accessible to other Internet users.

The web storage device can be accessed using a web browser according to the user's access method, using software plugged into the web browser, using software that can access the web storage device, and using a folder and file browsing tool such as Explorer. And the like.

When accessing a web storage device using a web browser, an operating system role such as uploading, downloading, copying, changing, moving, deleting, and creating a folder can be accessed using only the web browser. This type of web storage device uses a scripting language or CGI (Common Gateway Interface) to access the server-side operating system, which makes data less usable and has security weaknesses. The advantage is that you can easily access Web storage devices from your computer.

When accessing a web storage device using a plug-in, after downloading the plug-in software provided by the web storage service provider, the web storage device is accessed through the plug-in and the web browser. The availability of data is much more diverse than using a web browser, but it can be a bit inconvenient to use on a shared computer because it requires a plug-in from a web storage service provider.

When accessing a web storage device using independent software, the web storage device is accessed without a web browser by using independent software provided by a web storage service provider. In this case, since the user accesses through the software optimized for the web storage device, it is superior in terms of data use than any of the above-described approaches, and all tasks are optimized, but there is inconvenience of having to install the software.

When accessing using a personal computer browsing tool such as an explorer, the web storage method allows a web storage device to be used in the same manner as a personal storage device. Web storage users can access web storage devices in a way that is similar to how they access a personal computer's storage device, making them easy to use, concise, and able to access web storage devices without a web browser or independent software. There is this.

However, the biggest drawback of all the web storage devices described above is that high-capacity data is transmitted and the number of concurrent users often increases explosively. In some cases, data is often lost during data upload and download, and may not be recovered.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method of transmitting and receiving data using a cache server of a CDN to an existing web storage device on the Internet, and a web storage device mounted directly on a cache server of a CDN. Then, the present invention provides a method of transmitting and receiving data to a corresponding web storage device, and a method of copying data from a web storage device mounted directly to a cache server of a CDN to a web storage device of another cache server.

It is also an object of the present invention to divide the network components participating in the web storage device into a cache server, a web storage system, an ISP or a router provided by the CDNSP, and an ISP subscriber and a local network user. And a high speed data backup and management method through a CDN cache server according to its phase.

1 is a block diagram of a general method of receiving various services from a content provider (CP).

2 is a block diagram in which a CDN (Content Delivery Network) and an Internet user using the CDN are connected.

3 is a simple block diagram of a web storage device using a web storage system on the internet as a personal storage device.

4 is a block diagram of a case of accessing a web storage system on an existing Internet through a cache server provided by a CDNSP (CDN Service Provider).

5 is a block diagram of a case where a web storage system is directly mounted on a cache server according to the present invention.

FIG. 6 is a block diagram of data replication or transmission between local web storage systems mounted in a cache server.

7 is an exemplary diagram illustrating a process of inputting network information of a corresponding Internet user in a member registration process of a web storage system.

8 is a flowchart illustrating a process of uploading data to a wide area web storage system using a CDN cache server.

9 is a flowchart illustrating a process of uploading data to a local web storage system using a cache server of a CDN.

10 is a flowchart illustrating a process of copying a job to another local web storage system while uploading data to the local web storage system.

<Description of main parts of drawing>

120: ISP (Internet Service Provider) 130: Router

210: cache server 500: Local Web Storage System

510: Global Web Storage System

The present invention provides a method for transmitting and receiving data using a cache server of a CDN on an existing web storage device on the Internet, and a web storage device mounted directly on a cache server of a CDN, and then transmitting and receiving data to the web storage device. The present invention relates to a method of replicating data from a web storage device mounted directly on a CDN's cache server to a web storage device on another cache server. It is divided into storage systems, ISPs or routers, ISP subscribers and local network users, and provides a high speed data backup and management method through the CDN's cache server according to the location and topology of web storage devices on the CDN.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following examples are one of various methods for most appropriately explaining the present invention, and the present invention is not limited to the following examples.

Embodiments of the present invention provide a case in which a web storage system on a CDN is accessed at a high speed through a cache server and a web storage system is mounted directly on a cache server on a CDN. It deals with data replication through CDN from web storage system mounted on cache server to web storage system of other local area network as additional service.

4 is a simple block diagram of a case of accessing a web storage system 300 on the Internet through a cache server 210 provided by the CDNSP 200.

The CDNSP 200 installs a cache server 210 in a corresponding network by a strategic alliance with an ISP company or a local network, and the web storage system 300 operates a web storage device through the cache server 210. do. An ISP subscriber or a local network user accesses the web storage system 300 through the cache server 210 as follows.

When the ISP subscriber or the local network user requests the address of the web storage system 300 from the ISP of the ISP or the local network to access the web storage system 300, the DNS of the web storage system 300 is Instead of the address of the web storage system 300, the address of the cache server 210 connected to the ISP company or the local network is transferred.

Instead of the address of the web storage system 300, the ISP subscriber or the local network user who receives the address of the cache server 210 having the minimum of the web storage system 300 and the middle-mill (110) is the web storage system ( The data is transmitted to the cache server 210 to upload the data to the server 300, and the cache server 210 retransmits the data to the web hard disk of the web storage system 300.

In the above process, the ISP subscriber or the local network user cannot know whether the data is transmitted via the cache server 210 in the process of accessing the web storage system 300, and all processes are performed in the CDNSP 200, the ISP company, and the local network. This is done automatically by a strategic alliance between the network manager and the web storage system 300.

After transmitting the data to the web storage system 300, the management of the data can be made through the CDN in the same manner as described above, if there is little communication traffic required for data management, the existing Internet without going through the CDN It can also be accessed using a network.

The process of downloading data from the web storage system 300 is the same as the process of receiving content from the content provider 100 using the cache server 210 of the existing CDN, and uploading the data to the web storage system 300. Similarly, the ISP subscriber or local network user does not need to check whether he or she is receiving data through the cache server 210.

FIG. 5 is a simple block diagram of a case in which the web storage system 300 is directly mounted on the cache server 210. In the Internet, there is a conventional global web storage system 510, and CDNSP ( The cache server 210 provided by the 200 is equipped with a local web storage system 500.

In FIG. 5, an ISP subscriber or a local network user may determine whether to store the data in the wide area web storage system 510 or the local web storage system 500 according to the type and characteristics of the data. For example, if the data to be stored in the web storage system 300 is to be shared between the same ISP subscriber or the user of the local network, or the data is used personally within the local network, the local web storage system 500 And store for sharing with all Internet users, may be stored in the wide area web storage system 510.

A method of accessing the wide area web storage system 510 by an ISP subscriber or a local network user is similar to FIG. 4, and a method of accessing the local web storage system 500 is as follows.

When an ISP subscriber or a local network user requests the address of the local web storage system 500 from the DNS of the ISP or the local network in order to access the local web storage system 500, the ISP and the local DNS obtain the local web. It mounts the storage system 500 and transfers the address of the cache server 210.

The ISP subscriber or the local network user who receives the address of the cache server 210 instead of the address of the local web storage system 500 may upload the data to the cache server 210 to upload the data to the local web storage system 500. The cache server 210 stores the data in a web hard disk of the local web storage system 500.

In the above process of storing data to the local web storage system 500, the cache server 210 serves as a node between an ISP subscriber or a local network user and the local web storage system 500, and the data is stored in the local web storage system 500. ) Is stored in the wide-area web storage system 510. Also, the network topology of the local web storage system 500 is a large external storage device of the cache server 210 from the standpoint of the cache server 210. If the data stored in the cache server 210 is temporary with respect to time, the local web Data stored in the storage system 500 is permanently stored unless deleted by an ISP subscriber or a local network user.

FIG. 6 is a simple block diagram of a case of copying or transmitting data stored in a web hard from a local web storage system 500 mounted in the cache server 210 to another local web storage system 500.

5, data of an ISP subscriber or a local network user is separately stored in the local web storage system 500 and the wide area web storage system 510. At this time, the data stored in the wide area web storage system 510 can be accessed from anywhere on the Internet, and in the case of using the cache server 210 of the CDN according to the present invention, Transmission delays are avoided, allowing for very high speed communication. However, the data stored in the local web storage system 500 can be accessed by the ISP subscriber or the local network user and can be quickly accessed between the same network, but need to be shared or transmitted between other ISP subscribers or the local network user. If this is requested, high speed communication by the CDN is difficult. Accordingly, FIG. 6 provides a method of replicating and transmitting data of the web storage system 500 between different local area networks by using the cache server 210 network provided by the CDNSP 200.

Data replication and transfer between different local web storage systems 500 occurs automatically during the data upload process of the ISP subscriber or local network user, or once to the local web storage system 500 of the ISP subscriber or local network user. After saving the data, it can be generated at the request of the user.

The process of data replication and transfer to the different local web storage systems 500 while uploading data from the personal computer to the corresponding local web storage systems 500 for the different local web storage systems 500 is as follows. .

When an ISP subscriber or a local network user requests the address of the local web storage system 500 from the DNS of the ISP or the local network in order to access the local web storage system 500, the ISP and the local DNS obtain the local web. It mounts the storage system 500 and delivers the address of the corresponding local cache server 210.

The ISP subscriber or the local network user who received the address of the cache server 210 instead of the address of the local web storage system 500 uploads the data to the cache server 210 to upload the data to the local web storage system 500. When transmitting the data, the cache server 210 transmits the data to another local cache server 210 to be stored at the same time to store this data on the web hard of the local web storage system 500. This process is caused by the synchronization of the cache server 210 and the web storage system 500. If a copy, move, delete, and change of the data occurs in a specific local web storage system 500, the other local web The storage system 500 is also treated the same through the cache server 210 of the CDN.

In FIG. 6, the data already stored in the local web storage system 500 is copied or stored to another local web storage system 500 at the request of an ISP subscriber or a local network user who wants to use the data. It occurs at the same time as the address of the cache server 210 to be transmitted is input, and the copying and copying process is the same as the above-described process.

7 illustrates a case in which a local web storage system 500 is provided to ISP subscribers and local network users as shown in FIGS. 5 and 6, data replication and transmission to another local web storage system 500 at the same time as data upload is performed. In order to automatically generate, it is an exemplary diagram for a process of inputting the network information of the Internet user in the registration process of the web storage system 500.

In order for ISP subscribers and users of the local network to upload data to the local web storage system 500 and to simultaneously replicate and transmit data to other local web storage systems 500, some local web storage system 500 data must be transferred. In order to decide whether to replicate or transmit, the information of the network mainly used by the ISP subscriber and the local network user is needed.

In FIG. 7, the ISP subscriber and the local network user input the information on the Internet network mainly used by the member of the web storage system 500, and upload data from the network information input during the membership registration process. Even if downloaded or downloaded, the data can be provided from the local web storage system 500. For example, if you are working at a company and store it in your local web storage system 500 for the rest of your work at home, this data is stored in the web storage system 500 of the local network your company is using and at home. Since it is also stored in the web storage system 500 of the ISP company to use, the user of the web storage system 500 can be provided with a high-speed web storage service at home and at the same time. Of course, the above process may be stored in the wide area web storage system 510 without using the local web storage system 500, but may be stored in the local web storage system 500, and stored in another local web storage system 500. After automatically copying the data, using the data provides the only way for the user to ensure that the access speed is as fast as reading the data from inside the personal computer.

8 is a flowchart illustrating a process of uploading data to a wide area web storage system 510 using a cache server 210 of a CDN.

When the ISP subscriber and the local network user request the address of the wide web storage system 510 from the ISP and the local network's DNS in order to access the wide web storage system 510 (S100), the local DNS is the wide web storage system. A request is made to forward the address of the web storage system S510 to the DNS of step 510 (S105).

DNS requesting the address of the web storage system (S510) forwards the cache server 210 address of the region instead of the address of the wide area web storage system 510 to the local DNS requesting the address, and the regional DNS is the ISP subscriber and the region. The network server informs the cache server 210 address (S110).

The ISP subscriber and the local network user who have received the cache server 210 address of the region instead of the wide web storage system 510 address request uploading data to the cache server 210 (S115), and the cache server ( The 210 checks whether there is free storage space with respect to the wide web storage system 510, and if there is free space, permits data upload (S120). However, if there is no free space (S125), a user message is output and the corresponding operation is terminated (S130).

When data is uploaded to the cache server 210 from the ISP subscriber and the local network user (S135), the cache server 210 transmits the data to the wide area web storage system 510 through the CDN (S140), and the wide area web. The storage system 510 stores the data in the web hard.

The web storage system 510 checks whether the data transmission is completed through the CDN, and if the data transmission is terminated (S145), the job for the job is terminated by the cache server 210 on the CDN (S155). However, if the data upload is not finished (S150), the ISP subscriber and the local network user through the cache server 210 of the CDN (S135), the operation of storing the web storage system 510 (S140) is repeated do.

9 is a flowchart illustrating a process of uploading data to a local web storage system 500 mounted in the cache server 210 of the CDN.

When the ISP subscriber and the local network user request the DNS of the local web storage system 500 from the ISP and the DNS of the local network in order to access the local web storage system 500 (S100), the local DNS is the CDNSP (200). By () informs the cache server 210 address installed in the region (S105).

The ISP subscriber and the local network user who receives the cache server 210 address instead of the local web storage system 500 address request to upload data to the corresponding cache server 210 (S110), and the cache server 210 After checking whether there is free storage space for the local web storage system 500, if there is free space (S115), data upload is allowed (S130). However, if there is no free space (S120), a user message is output and the corresponding operation is terminated (S125).

When data is uploaded from the ISP subscriber and the local network user to the cache server 210 (S130), the cache server 210 transmits the data to the local web storage system 500, and the local web storage system 500 The data is stored in the web hard (S135).

The local web storage system 500 checks whether the data transmission is completed through the cache server 210, and if the data transmission is terminated (S140), the local web storage system 500 terminates the operation for the corresponding job in the cache server 210 (S150). . However, if not reversed (S145), the operation is repeated until the operation is terminated.

FIG. 10 is a flowchart illustrating a process of copying a job to another local web storage system 500 while uploading data to the local web storage system 500.

ISP subscribers and local area network users store data to the local web storage system 500 and replicate the data to other local web storage systems 500. Receives the address of the cache server 210 through the process.

When the ISP subscriber and the local network user who received the cache server 210 address request data upload to the corresponding cache server 210 (S110), the cache server 210 uploads the data by referring to the web storage system 500. Decide if you want to duplicate If it is not necessary to replicate (S120), the cache server 210 outputs a non-replicating warning message to the ISP subscriber and the local network user and terminates the operation (S125). However, if the data to be uploaded must be replicated (S115), the cache server 210 secures a path with the cache server 210 of the other local web storage system 500 through the CDN network information (S130), and another region to be replicated. The free space of the web storage system 500 is searched for (S135).

If there is free space for all the local web storage system 500 to be replicated (S140), the cache server 210 allows data upload from the ISP subscriber and the local network user (S155), on the contrary, there is no free space. If not (S145), and outputs a non-replicating warning message and terminates the operation (S150).

When data is uploaded from the ISP subscriber and the local network user to the cache server 210 (S155), the cache server 210 stores the data in the local web storage system 500 (S160) and is secured by the CDN. The corresponding data is replicated to another local cache server 210 through the path (S165).

The above process is repeated until data transmission and replication from the ISP subscriber and the local network user to all the local web storage systems 500 are terminated, and when the transmission is terminated (S170), the session information for the data is stored in all cache servers. End (S180).

According to the present invention, a method of transmitting and receiving data using a cache server of a CDN in an existing web storage device and a web storage device mounted directly on a cache server of a CDN, and then transmitting and receiving data to the web storage device. In the case of the explosive increase of high capacity data transmission or simultaneous access by providing a method, the biggest disadvantage of all existing web storage devices is the transmission delay in uploading and downloading data or in some cases uploading and downloading data. There is an advantage that it is easy to overcome the loss of data is not recovered.

In addition, by providing a method of replicating data from a web storage device mounted directly on the CDN's cacher server to another cache server's web storage device, ultra-fast data backup and backup can be performed through the CDN cache server in each region when the client's location changes It has the advantage of providing a management method.

The present invention provides the client with a faster web hard use and management method through the above advantages, there is an effect that allows the operator of the web hard to easily overcome the cause of server overload.

Claims (4)

A cache server, a web hard (or web storage system), an internet service provider (ISP) and a router provided by a content delivery network service provider (CDNSP) on the Internet, and one or more of the ISP affiliate clients (or local area networks) using the web hard. Network client), characterized in that the configuration, Requesting the webhard's address from the ISP subscription client (or local network client) to the DNS of the webhard via the DNS of the ISP and the local network; Transmitting a cache server address of a region of the ISP subscription client (or a local network client) from the web hard DNS, which is requested for the web hard address, to the ISP and the DNS of the local network instead of the web hard address; Transmitting the cache server address to the ISP subscribing client (or local network client) from the ISP having received the cache server address of the ISP subscribing client (or local network client) and the local network's DNS; Requesting data upload from the ISP affiliate client (or local network client) receiving the cache server address to the cache server; And transmitting and storing the data uploaded to the cache server to the web hard disk through a CDN. Web hard operation and management method using a CDN (Content Delivery Network) to provide a high-speed data backup and management method through the above steps. A cache server provided by a content delivery network service provider (CDNSP) on the Internet, a local web hard disk (or local web storage system) mounted on the cache server, an internet service provider (ISP) and a router, and one using the local web hard disk. It is characterized in that it is configured to include the above ISP subscription client (or local network client), Requesting an address of the local web hard from the ISP subscribing client (or local network client) to the DNS of the ISP and the local network; Transmitting the cache server address to the ISP subscribing client (or local network client) from the ISP and the local network's DNS which have received the address of the local web hard; Requesting data upload from the ISP affiliate client (or local network client) receiving the cache server address to the cache server; And transmitting and storing the data uploaded to the cache server to the local web hard drive. Web hard operation and management method using a CDN (Content Delivery Network) to provide a high-speed data backup and management method through the above steps. Cache server, web hard (or web storage system) provided by a content delivery network service provider (CDNSP) on the Internet, local web hard (or local web storage system), internet service provider (ISP), and router mounted on the cache server. And one or more ISP subscription clients (or local network clients) using the local web hard, When the data to be stored in the web hard from the ISP subscription client (or local network client) is data for the purpose of sharing on all the Internet, Requesting the webhard's address from the ISP subscription client (or local network client) to the DNS of the webhard via the DNS of the ISP and the local network; Transmitting a cache server address of a region of the ISP subscription client (or a local network client) from the web hard DNS, which is requested for the web hard address, to the ISP and the DNS of the local network instead of the web hard address; Transmitting the cache server address to the ISP subscribing client (or local network client) from the ISP having received the cache server address of the ISP subscribing client (or local network client) and the local network DNS; Requesting data upload from the ISP affiliate client (or local network client) receiving the cache server address to the cache server; And transmitting and storing the data uploaded to the cache server to the web hard disk through a CDN. If the data to be stored in the web hard from the ISP subscription client (or local network client) is intended to be used only in the local network, Requesting an address of the local web hard from the ISP subscribing client (or local network client) to the DNS of the ISP and the local network; Transmitting the cache server address to the ISP subscribing client (or local network client) from the ISP and the local network's DNS which have received the address of the local web hard; Requesting data upload from the ISP affiliate client (or local network client) receiving the cache server address to the cache server; And transmitting and storing the data uploaded to the cache server to the local web hard drive. As in each case, data of the ISP subscription client (or local network network client) may be separately stored in the web hard disk and the local web hard disk, and the CDN (Content Delivery) provides a high speed data backup and management method through the processes. Web hard operation and management method using Network). The method according to claim 2 or 3, wherein the data of the ISP affiliate client (or local network client) is simultaneously stored in two or more different local web hard disks. Determining data replication uploaded from the cache server when a data upload request is made from the ISP subscription client (or a local network client) receiving the cache server address to the cache server; Securing a path with a cache server of another local web hard via CDN network information from the cache server; And And replicating the data to another local cache server through a path secured by the CDN and transmitting the data to the other local cache server.