KR102139475B1 - Apparatus for storage duplication and building method thereof - Google Patents

Abstract

The present invention relates to a storage redundancy system and a method of constructing the system, wherein the storage redundancy apparatus according to an embodiment of the present invention is a storage redundancy apparatus applied to a SAN network environment in which a host and a storage are connected by a switch. The communication interface unit connected to the dummy port, and the port of the host and the port of the storage are zoned using the port information of the host and the port information of the storage, respectively identified by spoofing after connection, and the matched port recognized by zoning It may include a control unit that processes data stored in the storage based on the information.
According to the storage redundancy system of the present invention and the method of constructing the system, for example, when constructing a storage redundancy system that provides a heterogeneous environment, service interruption will not be required, and even in the case of a data movement system without configuration change, a data movement service is provided There is an advantage of ensuring continuous IO because there is no need to switch physical cables for this purpose.

Description

Storage redundancy device and its construction method {APPARATUS FOR STORAGE DUPLICATION AND BUILDING METHOD THEREOF}

The present invention relates to a storage redundancy device and a method of constructing the same, and more particularly, when configuring a storage redundancy system for data management services, continuous input/output without switching FC (Fiber Channel) cables based on a virtual SAN network It relates to a storage redundancy device that guarantees (IO) and a method of constructing the device.

The rapid transition to big data, Internet of Things (IoT), cloud, artificial intelligence, VR/AR (Virtual Reality/Augmented Reality), and 5G environment causes data explosion, which is totally dependent on IT technology and services. Companies are also increasing the importance of backup and disaster recovery for critical data such as storage redundancy technology. In addition, IT service disruption and data loss due to storage failure can have a fatal effect on corporate reliability and business continuity.

This importance comes from lessons that in many cases experienced data loss due to storage failure and severe loss due to service interruption in many cases. Storage redundancy service provides data protection and service continuity is a'choice' for computational operation. This is not a'essential' matter. In the case of the existing backup and disaster recovery technology, there is a risk of service interruption and data loss as well as long periods of time and cost, such as short data weeks or months for data migration for storage redundancy or replacement.

Patent No. 10-1442321, which is a prior art for solving the above problems, introduces a “network system having initiator subnetwork communication”, and specifically, an Ethernet Fiber Channel Over Ethernet (FCoE) initiator system generating an FCoE data packet by a first host network device in the (initiatorsystem), and the method further comprises the step of generating an FCoE data packet by a first host network device in the FCoE initiator system, for the FCoE data packet. area network) designating a target Fiber Channel (FC) storage device in a target system, wherein the method further comprises, by an Ethernet component gateway in the FCoE initiator system, the FCoE data packet. The method further comprises converting the FCIP data packet, the method further comprising transmitting the FCIP data packet to the SAN target system through an IP data path by the Ethernet component gateway, In addition, the method further comprises receiving, by a SAN component gateway in the SAN target system, the FCIP data packet, wherein the method extracts, by the SAN component gateway, a SAN data packet from the FCIP data packet, and And providing the SAN data packet extracted in this way, wherein the method comprises transmitting, by the SAN component gateway, the extracted SAN data packet to the target FC storage device.

However, most of the storage redundancy services, such as the prior art, support a redundancy function between products of the same vendor, and products supporting redundancy of some heterogeneous storages require down time when the server is stopped when redundancy is set. Since the installation of a separate agent is required because the non-disruptive redundancy technology that guarantees continuous input/output (IO) is not used, additional resource resources are occupied when installing the agent, causing performance degradation. That is, a storage redundancy system that provides a heterogeneous environment requires service interruption, and a data movement system without a configuration change could not guarantee continuous IO by switching and configuring a physical cable to provide a data movement service.

Therefore, in order to use the redundancy service of an existing storage system, an installation method that guarantees continuous IO in SAN components such as a host server, a storage area network (SAN) switch, and storage is essential.

Korean Patent Registration No. 10-1442321 (2014.09.12.) Korean Registered Patent No. 10-1444846 (2014.09.19.)

An object of the present invention is to provide a storage redundancy device that guarantees continuous IO without switching FC cables based on a virtual SAN network when configuring a storage redundancy system for data management services, and a method of constructing the same. .

According to a preferred embodiment of the present invention, as a redundant storage device applied to a storage area network (SAN) network environment in which a host and a storage are connected to each other by a switch, a dummy port of the switch ), and after the connection, zoning the port of the host and the port of the storage using port information of the host and port information of the storage, respectively identified by a spoofing operation ( zoning) and processing data stored in the storage based on the matched port information recognized by the zoning.

According to another embodiment of the present invention, the control unit is characterized by processing the stored data based on LUN (Logical Unit Number) information identified by communication with the storage.

According to another embodiment of the present invention, the communication interface unit includes a first spoof port and a second spoof port respectively connected to the first dummy port and the second dummy port of the switch by cables. .

According to another embodiment of the present invention, when the first spoof port and the first dummy port are connected by a first cable, the controller performs first spoofing on the storage to identify port information of the storage. Communication with the host is performed based on the identified port information, and when the second spoof port and the second dummy port are connected by a second cable, a second spoofing is performed on the host to identify port information of the host. It is characterized by giving.

According to another embodiment of the present invention, it is characterized in that the communication interface unit, the first cable and the second cable to connect the FC (Fiber Channle) cable.

According to another embodiment of the present invention, the storage redundancy device is characterized by configuring the storage and heterogeneous storage.

According to another embodiment of the present invention, a method for constructing a storage redundancy device applied to a SAN network environment in which a host and storage are connected by a switch, comprising: connecting a communication interface to a dummy port of the switch; And after the connection, the controller zons the port of the host and the port of the storage using the port information of the host and the port information of the storage respectively identified by the spoofing operation, and the matched recognition recognized by the zoning And processing data stored in the storage based on port information.

According to another embodiment of the present invention, the step of processing data is characterized by processing the stored data based on the LUN information identified by communication with the storage.

According to another embodiment of the present invention, the step of connecting is characterized in that the first dummy port and the second dummy port of the switch and the first spoofing port and the second spoofing port of the communication interface are respectively connected by cables. Is done.

According to another embodiment of the present invention, the step of processing data is performed by performing first spoofing on the storage when the first spoofing port and the first dummy port are connected by a first cable to obtain port information of the storage. Identifying and performing communication with a host based on the identified port information; And when the second spoofing port and the second dummy port are connected by a second cable, performing second spoofing on the host to identify port information of the host.

According to another embodiment of the present invention, the FC cable is used as the first cable and the second cable.

According to another embodiment of the present invention, the storage redundancy device is characterized by configuring the storage and heterogeneous storage.

On the other hand, since the description of the technology disclosed in this specification is merely an embodiment for structural or functional description, the scope of rights of the disclosed technology should not be interpreted as being limited by the embodiments described in the text. That is, since the embodiments can be variously changed and have various forms, it should be understood that the scope of rights of the disclosed technology includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the disclosed technology does not mean that a specific embodiment should include all or only such effects, the scope of the rights of the disclosed technology should not be understood as being limited thereto.

In addition, the meaning of the terms described in the present invention should be understood as follows. Terms such as “first” and “second” are for distinguishing one component from other components, and the scope of rights should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may be referred to as a first component.

Furthermore, when it is mentioned that a component is "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, it should be understood that no component exists. On the other hand, other expressions describing the relationship between the components, that is, “between” and “between” or “neighboring to” and “directly neighboring to” should be interpreted similarly.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as “comprises” or “having” refer to the features, numbers, steps, actions, components, parts or components described. It is to be understood that a combination is intended to indicate the existence, and does not preclude the existence or addition possibility of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

According to an embodiment of the present invention, for example, when constructing a storage redundancy system that provides a heterogeneous environment, service interruption will not be required, and even in the case of a data transfer system without configuration change, a physical cable is switched to provide data transfer service. There is no need to do this, which has the advantage of ensuring continuous IO.

1 is a diagram illustrating a SAN system according to an embodiment of the present invention.
FIG. 2 is a view showing a storage redundancy device connected to the switch of FIG. 1.
FIG. 3 is a view showing a modification of the storage redundancy device of FIG. 2.
4 is a diagram illustrating another modified example of the storage duplexing device of FIG. 2.
5 is a flowchart illustrating a driving process of a storage redundancy device according to an embodiment of the present invention.
6 is a view showing a storage redundancy device in a SAN environment according to an embodiment of the present invention.
7 is a flow diagram for identifying storage LUNs.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a diagram illustrating a SAN system according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating a storage redundancy device connected to the switch of FIG. 1.

1 and 2, the storage redundancy systems 90 and 130 under a SAN environment according to an embodiment of the present invention include hosts 101 and 102, switches 110, storage 120, and a story redundancy device. Some or all of 130.

Here, "including some or all" means that some components, such as the switch 110, are omitted so that the systems 90, 130 are configured, or some components, such as the switch 110, are connected to the hosts 101, 102. It means that it can be integrated into other components, such as being configured, and is described as including everything in order to help the understanding of the invention.

The hosts 101 and 102 are, for example, servers, and perform operations for storing and managing data in the storage 120 via the switch 110. Accordingly, although the hosts 101 and 102 are not separately shown, they are connected to the switch 110 or connected to a communication network through a separate switch to communicate with servers of various companies, through which the data management operations of the companies can be performed. I can. Here, the "data management operation" may include, for example, data backup, data restoration and permanent storage, data retrieval, and the like. From a company's point of view, it can be said that the SAN network functions as a cloud network. The above communication network to which the hosts 101 and 102 are connected may be an external communication network, and may include a wired/wireless communication network operated by a main communication company.

The hosts 101 and 102 may be connected to the switch 110 by, for example, an FC cable. The connection portion connected by the FC cable may be referred to as a connection port, and corresponds to a communication interface portion. Since the connection port is a physical layer and does not define a communication protocol of an upper layer, it will be able to support a plurality of communication protocols starting with, for example, TCP/IP. Various communication methods according to the communication protocol may be used, but usually one line is in charge of control communication and the other is in charge of data transmission. However, since both control communication and data transmission may be possible through one line, the embodiment of the present invention will not be particularly limited to any one form.

The hosts 101 and 102 process data input from the outside and store it in the storage 120 via the switch 110. Since the storage 120 corresponds to a data storage, it is necessary to classify and store a category when storing data, and for this purpose, it can be seen that the hosts 101 and 102 usually use address information in the storage. The address information, for example, will include information about where the storage location of the related data and how much data is stored. Here, the size of data may be referred to as a volume. In other words, a volume is a range from where to where data is stored. Of course, with respect to data storage information of the storage 120, it may be stored and managed in a separate storage space in the storage 120.

The switch 110 includes an FC switch or a SAN switch. The hosts 101 and 102 and the storage 120 are connected to each other, and the storage duplication device 130 of FIG. 2 is connected. The storage redundancy device 130 is a second storage configured separately from the storage 120, and may be the same or may be a heterogeneous storage. The switch 110 includes a plurality of connection parts connected to the hosts 101 and 102 and the storage 120, that is, connection ports. A first port unit (S-1 to S-6) for configuring the SAN system and a second port unit 111 for connecting the storage redundancy device 130 may be included. Here, the second port unit 111 may be referred to as a dummy port because it is an extra port. The first port units S-1 to S-6 used when configuring the SAN system perform an operation for recognizing or identifying connection ports with each other when constructing the SAN system. In other words, it is to set the path to process the data. This process will be essential to avoid data collisions.

The switch 110 of FIG. 1 shows a form of a virtual switch. The storage network may include a host server, a storage system, a SAN switch, etc. in a real environment, wherein the SAN switch includes ports S-1 to S-8 as the switch 110 of FIG. 1. Each port may be referred to as a switch port for convenience, but S-7 and S-8 may be referred to as a first dummy port and a second dummy port. Ports H-1 and H-2 of the host 101 are connected to ports S-1 and S-2 of the switch, respectively. Ports H-3 and H-4 of the host 102 are connected to ports S-3 and S-4 of the switch 110, respectively. Port S-5 of the switch 110 is connected to port T-1 of the storage (or storage system) 120. Port S-6 of the switch 110 is connected to port T-2 of the storage 120. In FIG. 1, ports S-7 and S-8 of the switch 110 are redundant ports, that is, dummy ports. The switch 110 may be applied to a virtual switch. The virtual switch provides the ability to identify one or more virtual switches within the switch.

The storage redundancy device 130 according to an embodiment of the present invention is connected to ports S-8 and S-9 of the switch 110 through first and second spoof ports 131 and 132, respectively, as shown in FIG. 2. . The first and second spoof ports 131 and 132 are named because they are used to perform a spoofing operation when configuring a storage redundancy system to ensure continuous IO. "Spoofing" refers to an access act that bypasses access control by accessing the system as an authorized user or masquerading as an authorized address on the network. Spoofing masquerades as someone else's identity for intentional behavior and uses media access control (MAC) addresses, Internet Protocol (IP) addresses, ports, and email (email) addresses. For example, it is typical to randomly compose a website to induce general users to visit, obtain the user's system authority using the structured combination of TCP/IP, an Internet protocol, and then extract information or steal an authorized IP to log in. to be. As described above, when each spoofing port 131 or 132 is connected to the switch 110, the storage redundancy device 130 checks which path is connected between the hosts 101 and 102 and the storage 120 through a spoofing operation. It can be seen that. In addition, continuous IO is guaranteed by using the verification path information.

For the above operation, as shown in FIG. 2, the storage duplication device 130 includes the FC port information spoofing process 200, the data management service 210, the path emulation process 220, the memory 230, and the redirection process 240. ) May include some or all of them. Of course, this configuration may be configured by hardware (H/W), software (S/W), or a combination thereof.

The FC port information spoofing process 200 controls FC port information of the hosts 101 and 102 and port information of the storage 120. The FC port information spoofing process 200 is composed of ports M-1 and M-2 that exchange the port information of the hosts 101 and 102 and the port information of the storage 120 to convert WWPN (WorldWide Port Name). Here, the ports M-1 and M-2 correspond to the first spoof port 131 and the second spoof port 132 according to an embodiment of the present invention.

The path emulation process 220 performs various actions to mimic a communication path between two devices. The path emulation process 220 checks the existing path between the host 101 and 102 and the first storage 120 or storage device and creates a corresponding replicated path between the host 101 and 102 and the new storage device. The path emulation process 220 may check information applied to other aspects of the initial path. The path emulation process 220 may apply the same environment to the new path based on the environment of the existing path. That is, it mimics the first path. The path emulation process 220 may apply the same environment by copying the first path to the new path. The path emulation process 220 may store information defining a relationship between an existing path and a new path in the memory 230.

The path emulation process 220 discovers the environment of the communication path using the general details of SCSI (Small Computer Systerm Interface) reservation. The current specification of'Persistent Reservation' confirms the use of the following commands: READ FULL STATUS command or READ KEYS command. And, depending on which commands, such as READ RESERVATION command, are supported by the storage system, for example, the storage 120, the state of the communication path is defined by information in the key, reservation state, and full status. For certain forms, these mixed modes of operation can be used to obtain complete information of the communication path.

The redirection process 240 resets existing communications to the existing equipment to the new route via the existing route. Redirection process 240 may access information showing new paths, each corresponding to a number of first paths. Mapping information is stored in the memory 230. Here, the operation of resetting a new path may be referred to as zoning according to an embodiment of the present invention. However, embodiments of the present invention will not be particularly limited to the concept or use of such terms.

By configuring the SAN network by connecting the storage redundancy device 130 to the switch 110 in the above-described manner, a storage redundancy system may be inserted or built while maintaining continuous IO.

3 is a view showing a modification of the storage duplication device of FIG. 2.

3, the storage redundancy device 130' according to another embodiment of the present invention may include some or all of the communication interface unit 300 and the storage redundancy service processing unit 310, wherein " "Including part or all" has the same meaning as above.

The communication interface 300 may include, for example, a plurality of spoofing ports for connecting to the dummy port 111 configured in the switch 110 of FIG. 1 as a communication module. The number can be symmetrical with each other. In other words, when the dummy ports 111 of the switch 110 are four, the plurality of spoofing ports becomes four. However, in the embodiment of the present invention will not be specifically limited to the number. The plurality of spoofing ports are respectively connected to the dummy ports 111 by, for example, FC cables.

Accordingly, it can be seen that the communication interface 300 communicates with the switch 110. For example, when the first spoofing port 131 is connected, the host 120 is controlled under the control of the storage redundancy service processing unit 310 based on port information identified by accessing the storage 120 and performing first spoofing on the storage 120. 101, 102). Of course, the identification operation may be performed by the storage redundancy service processing unit 310.

In addition, when the second spoofing port 132 is connected to the dummy port 111, the communication interface unit 300 performs a second spoofing on the hosts 101 and 102 under the control of the storage redundancy service processing unit 310 The second port information of (101, 102) may be acquired and provided to the storage redundancy service processing unit 310.

When the storage redundancy service processing unit 310 connects the spoofing ports 131 and 132 to the switch 110 through the communication interface unit 300, port information of the storage 120 and the hosts 101 and 102 by the spoofing operation is performed. And sequentially, and using the identified port information, it is possible to find a matching relationship with each other based on the switch 110. Then, data stored in the storage 120 is processed according to the matching relationship. Of course, in this connection, the storage redundancy service processing unit 310 may check the volume information of the data from the storage 120 and process the data.

Of course, since the storage redundancy service processing unit 310 may use a new relationship, for example, by resetting the path after finding the matching relationship, the embodiment of the present invention will not be specifically limited to any one type.

4 is a view showing another modification of the storage redundancy device of FIG. 2.

4, the storage redundancy device 130 ″ according to another embodiment of the present invention includes a communication interface unit 400, a control unit 410, a storage redundancy service execution unit 420, and a storage unit ( 430).

Here, "including some or all" means that some components, such as the storage unit 430, are omitted to form the storage redundancy device 130'' or the storage unit 430 or the storage redundancy service execution unit 420. It means that some components, such as being able to be integrated with other components such as the control unit 410, etc., are included to help the understanding of the invention.

When comparing the storage redundancy device 130 ″ of FIG. 4 with the storage redundancy device 130 ′ of FIG. 3, the storage redundancy service processing unit 310 of FIG. 3 executes the control unit 410 and the storage redundancy service of FIG. 4. It can be seen that there is a difference in that it can be configured by being dualized into the part 420 or further ternized into the storage part 430. Accordingly, the control unit 410 is only in charge of the control operation, and the storage redundancy service execution unit 420 is only to execute the redundancy service operation of the storage.

For example, the control unit 410 is responsible for overall control operations of the communication interface unit 400, the storage redundancy service execution unit 420, and the storage unit 430 constituting the storage redundancy device 130 ″ of FIG. 4. For example, when the FC cable is connected to the switch 110 of FIG. 1 through the communication interface unit 400, the first spoofing operation is performed by notifying the storage redundancy service execution unit 420. Of course, the data processed in this process may be temporarily stored in the storage unit 430 and then provided to the storage redundancy service execution unit 420 again. Also, the storage redundancy service execution unit 420 may be controlled to perform the second spoofing operation.

On the other hand, the storage redundancy service execution unit 420 checks the volume information of the data in the storage 120 of FIG. 1, and processes the data based on the spoofing operation and the path reset operation under the control of the control unit 410. You will be able to perform various actions. For example, when there is an inflow of new data, the controller 410 may request the storage of the storage redundancy device 130 ″ to be stored in the storage unit 430. As described above, since the storage redundancy service execution unit 420 can perform various operations previously mentioned above, it is intended to be replaced with the contents of the corresponding part.

Other than that, the communication interface unit 400 of FIG. 4, the control unit 410, the storage redundancy service execution unit 420, and the storage unit 430 are related to the storage redundancy device 130 of FIG. 1, and the communication of FIG. Since the contents of the interface unit 300 and the storage redundancy service processing unit 310 are not significantly different, the contents will be substituted.

Meanwhile, as a modified example of the storage redundancy device 130 ″ of FIG. 4, the control unit 410 of FIG. 4 is formed in a one-chip form, and may include a CPU and a memory therein. The CPU may include a control circuit, an operation unit (ALU), an instruction analysis unit, a registry, etc., and the memory may include RAM. The control circuit is responsible for the control function, the operation unit is responsible for the operation of bit information, and the instruction analysis unit processes the machine language to recognize the instruction. The registry is involved in data storage. As a result of the above configuration, the CPU can rapidly increase the data processing speed by copying the program stored in the storage redundancy service execution unit 420 and loading it into the memory when the storage redundancy device 130'' is initially driven, and then executing it. have.

5 is a flowchart illustrating a process of driving a storage redundancy device according to an embodiment of the present invention.

Referring to FIG. 5 together with FIGS. 1 and 2 for convenience of description, the storage redundancy device 130 according to an embodiment of the present invention is a dummy port of a switch 110 connected to the hosts 101, 102 and the storage 120 Connect to (111) (S500). For example, the spoofing ports 131 and 132 of the storage redundancy device 130 may be connected to the dummy ports 111.

Subsequently, the storage redundancy device 130 connects to the dummy port 111 and identifies the port information of the hosts 101 and 102 and the storage 120 by a spoofing operation, respectively, and uses the identified port information to host ( The ports of 101 and 102 are zoned, and the data stored in the storage 130 is processed based on the (matched) port information by zoning (S510).

In this process, for example, the storage redundancy device 130 may check the data volume information of the storage 130 and perform operations such as backing up and copying data based on this.

In addition, the storage duplication device 130 may allow access to a new storage according to relationship setting information between the existing storage 120 and the new storage so that data can be backed up or copied.

In addition, since the storage redundancy device 130 can perform various operations in conjunction with a SAN system, other details will be replaced by the previous contents.

6 is a diagram illustrating a storage redundancy device in a SAN environment according to an embodiment of the present invention, and FIG. 7 is a flowchart for identifying a storage LUN. 6 and 7, it is assumed that the server and the SAN switch are constructed as in the real environment.

6 and 7, as in step S700 of FIG. 7, the storage redundancy system 130 ′ of FIG. 6 has a first (or first) spoofing port M-1. And the second (or second) spoofing port (M-2) is connected to the SAN switch 610, the first port (H-1) and the second port (H-2) of the host server 601 It connects to the storage 620 having the first storage port (T-1) and the second storage port (T-2). Here, the first host server port (H-1) is connected to the SAN switch 610 and the first storage port (T-1) is connected to the SAN switch 610. The storage redundancy system 130' is connected to the SAN switch 610. In FIG. 6, the storage redundancy system 130' includes ports M-1 and M-2. Port M-1 is connected to port S-7 of the SAN switch 610. Port M-2 is connected to port S-9 of the SAN switch 610.

In addition, as in step S710 of FIG. 7, the storage redundancy system 130 ′ of FIG. 6 has a third (or third) spoofing port M-3. In addition, the fourth (or fourth) spoofing port M-4 is connected to the SAN switch 610 to connect the host server 602 to the storage 620. The host server H-3 port is connected to the SAN switch 610, and the second storage port T-2 is connected to the SAN switch 610. The second spoofing port M-2 is connected to the SAN switch 610. The storage redundancy system 130' includes ports M-3 and M-4. Port M-3 is connected to port S-8 of the SAN switch 610. Port M-4 is connected to port S-10 of the SAN switch 610.

The same WWPN in the SAN switch 610 cannot be provided to more than one port in the same switch. However, a host WWPN is required to find the storage volumes. This is because the storage LUN is assigned a unique host WWPN of the same client host by a LUN masking process. In a deployment configuration using the SAN switch 610, the host servers 601 and 602 have some initiators connected to the SAN switch 610. In order to prevent WWPNs from colliding and at the same time use the function for discovering storage volumes, the WWPNs of initiators connected to the SAN switch 610 are stored in the storage redundancy system 130'. Spoofing ports (M-1 to M) -4) This is to enable host server requesters to discover storage LUNs without additional operations and procedures.

As in step S720 of FIG. 7, the first WWPN of the first initiator port (host server port) is added as the fourth spoof port (M-4) of the second storage redundancy system. 6, the WWPN of the host server port H-1 is added to the port M-4 of the storage redundancy system 130'.

As in step S730 of FIG. 7, the WWPN of the second initiator port is added to the second spoof port (M-2) of the storage redundancy system 130'. The WWPN of port H-2 of the host server 601 is added to port M-2 of the storage redundancy system 130'.

The WWPN of port H-3 of the second host server 602 is also added to port M-3 of the storage redundancy system 130' and the WWPN of port H-4 of the host server 602 is the storage redundancy system 130'. ) Is added to port M-4.

On the other hand, that all components constituting the embodiments of the present invention are described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, if it is within the scope of the present invention, all of the components may be selectively combined and operated. In addition, although all of the components can be implemented as one independent hardware, a program module that performs some or all functions combined in one or more hardware by selectively combining some or all of the components. It may be implemented as a computer program having The codes and code segments constituting the computer program may be easily deduced by those skilled in the art of the present invention. Such a computer program is stored in a computer-readable non-transitory computer readable media and read and executed by a computer, thereby implementing an embodiment of the present invention.

Here, the non-transitory readable recording medium means a medium that stores data semi-permanently and that can be read by a device, rather than a medium that stores data for a short time, such as registers, caches, and memory. . Specifically, the above-described programs may be stored and provided on a non-transitory readable recording medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and is generally used in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications may be made by those skilled in the art, and these modifications should not be individually understood from the technical idea or perspective of the present invention.

101, 102: host 110: switch
120, 620: storage 111, 111': dummy port
130, 130', 130'': storage redundancy unit
131: first spoofing port
132: second spoofing port 200: FC port information spoofing process
210: data management service 220: path emulation process
230: memory 240: redirection process
300, 400: communication interface unit 310: storage redundancy service processing unit
410: control unit 420: storage redundancy service execution unit
430: storage unit 601, 602: host server
610: SAN switch

Claims (4)

A storage redundancy device applied to a storage area network (SAN) network environment in which a host and storage are connected by a switch.
A communication interface unit connected to the dummy port of the switch; and a port and the storage of the host using port information of the host and port information of the storage respectively identified by a spoofing operation after connecting the communication interface unit to the dummy port. It comprises a control unit 410 for zoning the port, and processing the data stored in the storage based on the port information matched by the zoning,
The storage duplication device 130 includes an FC port information spoofing process 200, a data management service 210, a path emulation process 220, a memory 230 and a redirection process 240; and,
The communication interface 300 includes a first spoofing port 131 and a second spoofing port 132 connected to the first dummy port and the second dummy port of the switch by a cable,
The control unit 410 may be configured such that the first spoof port 131 and the first dummy port are connected by a first cable, or the second spoof port 132 and the second dummy port are connected by a second cable. time,
Access to the storage 120, perform first spoofing on the storage, identify the port information of the storage, and communicate with the host under the control of the storage redundancy service processing unit 310 based on the identified port information. Storage redundancy device and a method of constructing the device.
The method of claim 1,
The FC port information spoofing process 200 converts the WWPN by exchanging FC port information of the hosts 101 and 102 and port information of the storage 120,
The path emulation process 220 checks an existing path between the hosts 101 and 102 and the first storage 120 or storage device, and determines a duplicate path corresponding to the path between the hosts 101 and 102 and the new storage device. Created in,
And storing information defining a relationship between the existing path and the duplicated path in the memory 230 and a method of constructing the same.
◈ Claim 3 was abandoned upon payment of the set registration fee. The method of claim 1,
The redirection process 240 resets to a new path via communications to the existing equipment, but accesses information showing the new path corresponding to the first path, and stores the mapped information in the memory 230. Redundancy device and construction method of the device. delete

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