KR101867583B1 - Data movement service delivery system and method on the san network environment - Google Patents

Abstract

A system and method for providing a data movement service in a SAN network environment, the system comprising: a host including at least one initiator port; a fiber channel (FC) switch including a plurality of switch ports; A target port of the disk array and a switch port of the FC switch, wherein the target port of the disk array and the switch port of the FC switch are provided in a SAN network environment that provides a data movement service in a SAN network environment including a disk array including a target port A data movement service provider for performing a data movement service through an FC port of the data movement service provider; A memory for storing data moved through the data movement service provider; And a processor communicating over the SAN network to control operation of the data movement service provider and memory and to transmit and receive information associated with data stored in the disk array. Therefore, the present invention can provide a data movement service such as copying, backup, copying, and moving data to a volume of another disk array without service interruption without changing the configuration of the host, FC switch, and disk array.

Description

TECHNICAL FIELD [0001] The present invention relates to a data movement service providing system and a data movement service method in a SAN network environment,

The present invention relates to a system and method for providing a data movement service in a SAN network environment, and more particularly to a system and method for providing a data movement service in a SAN network environment capable of providing a data movement service without service interruption, And more particularly, to a data movement service providing system and method therefor.

In general, data disk arrays and data management technologies continue to grow in importance and importance of the rapid growth of the Internet and the effective management of data storage capacity and stored data in a cloud computing environment.

Disk array systems use various types of devices to store current data, including HDDs, SSDs, tapes, Redundant Arrays Independent Disks (RAIDs), SANs (Fiber Channel based Storage Area Networks)

The SAN network is a special purpose high-speed network that manages stored data by connecting different types of data storage devices together with related data servers for large-scale network users by constructing a separate LAN (Local Area Network) or a network.

In addition to being shared by all users with different types of storage devices connected together, the SAN network can back up data, restore data and permanently store data, retrieve data, and transfer data from one storage device to another The advantage is that it can be moved.

Most enterprise disk array systems require data management service technology in addition to the existing disk arrays for additional work and performance. At this time, data management service technology is necessary for using functions such as data copying between disk arrays, data backup, data replication, and data movement.

1 is a diagram illustrating a configuration of a general SAN network system.

Referring to FIG. 1, a SAN network system is composed of a plurality of systems 10, a disk array 20, and a SAN network 30.

The system 10 is connected to the SAN network 30 and communicates with the disk array 20 via the SAN network 30. Disk array 20 receives a request to store data from system 10 and stores the requested data. In addition, the disk array 20 receives a request to access stored data at the request of another system, and provides the requested data access function.

At this time, the disk array 20 authenticates whether the user is permitted to access the data when performing the data access function, and is connected to the SAN network 30 when the user authentication is normally completed. The SAN network 30 may be a Fiber Channel based SAN or an ISCSI based network.

A SAN network system is an implementation of networking by inserting an FC switch into a channel connection between a server and a disk array. It can connect to multiple disk arrays from one connection port of the server through an FC switch, The flexibility to connect multiple servers to the server.

Therefore, in SAN network system, SAN management software is needed separately for data copy and data movement between different kinds of storage, and it is very inefficient to create a driver suitable for SAN management software. .

That is, in order to use the data movement function in the SAN network system, a system or server-specific driver is installed to obtain IO commands from the disk array. However, in the SAN network system, after installing a driver for moving data to a host such as a system or a server, an unknown error may occur in the host, and the performance may be degraded due to such an error.

In order to provide the data movement service in the conventional SAN network environment, the system downtime which interrupts the operation of the components such as the server, the FC switch and the disk array, the change of the FC switch, and the change of the disk array Therefore, there is a problem that configuration change and system are affected.

Korean Patent No. 10-1442321 entitled "Network System Having Initiator Subordinate Communication" Korean Patent No. 10-1444846 "Storage Area Network Monitoring System"

The present invention relates to a SAN network capable of providing a data movement service without interruption of service without changing a constituent element of a SAN network through a data movement system located in a path between a target port of a disk array and a switch port of an FC switch, The present invention provides a system and method for providing a data movement service in an environment.

Among the embodiments, a data movement service providing system in a SAN network environment includes a host including at least one initiator port, a Fiber Channel (FC) switch including a plurality of switch ports, at least one target port And a plurality of FC ports connected to a switch port of the FC switch, wherein the target port of the disk array is connected to a switch port of the FC switch, and the data movement service is provided in a SAN network environment providing a data movement service in a SAN network environment including a disk array A data movement service provider for performing a data movement service through the network; A memory for storing data moved through the data movement service provider; And a processor that communicates over the SAN network to control operation of the data movement service provider and memory and to transmit and receive information associated with data stored in the disk array.

The FC switch being a switch manager for controlling operations of functional components executed by a combination of hardware, software, software and hardware in the FC switch; And a memory for storing control data of the functional components.

The memory includes an SNS table storing identifier information allocated to each port including the initiator port, the switch port, and the target port, and port connection information between the ports.

And the host and the disk array have access rights to the SNS table stored in the memory of the FC switch.

Wherein an initiator port of the host and a target port of the disk array transmit an FC login request to the FC switch for connection with a switch port of the FC switch, And reflects the port connection information to record the identifier information of the switch port to which the FC switch is connected, and reflects the port disconnection information in which the FC switch is disconnected from the initiator port or the target port.

Wherein the processor identifies a volume of the disk array accessible using the identifier information of the initiator port of the host, communicates with the FC switch using the identifier information of the target port, Intercepts an IO command for transferring the command to the disk array, transfers all commands transmitted and received between the disk array, the FC switch, and the host, transmits an identifier designation command including the determined identifier information to the disk array, Characterized in that volume information identifying a volume of a possible disk array is received from the disk array.

The data movement service provider accesses the volume N of the disk array using the identifier information of the initiator port of the host, copies the data stored in the volume N to another volume, And records and manages the storage location of the data.

The data movement service provider monitors statistical information related to the IO command by monitoring I / O commands for data movement to / from the volume of the disk array, and monitors traffic sent to and received from the volume.

Among the embodiments, a method for providing a data movement service in a SAN network environment includes a host including at least one initiator port, a fiber channel (FC) switch including a plurality of switch ports, A method of providing a data movement service in a SAN network environment that provides a data movement service in a SAN network environment including a disk array including a disk array including a disk array, To the target port of the disk array, and requesting the FC switch to register for the FC login based on the identifier information of the target port, the upstream FC port of the data movement system; b) registering the upstream FC port using the identifier information of the target port according to a registration request of the upstream FC port; c) receiving, from the initiator port of the host interlocked with the target port, registration information including its own identifier information and identifier information of a switch port associated with the initiator port; d) the FC switch transmits registration information for an initiator port of a zoned host to the target port to the data movement system, and the data movement system uses the identifier information of the target port to transmit the registration information Confirming the identifier information of the initiator port through the initiator port; And e) the data movement system identifies the initiator port identifier information accessible based on the identifier information of the target port, communicates with the disk array based on the identifier information of the initiator port, And providing a data movement service related to the identified data.

Wherein the FC switch stores an SNS table storing identifier information and port connection information allocated to each port including the initiator port, the switch port, and the target port, and the host and the disk array have access rights to the SNS table .

Wherein the upstream FC port of the data movement system registers all the initiator ports of a host that is zoned with the target port and the initiator port of the host transmits the registration information to the initiator port Is registered in the downstream FC port.

In the step b), the data movement system performs a standard procedure for registering the identifier information of the initiator port zoned with the target port in the downstream FC port, and the initiator port, which is accessible from the disk array, The volume identification information of the disk array is extracted using the identifier information of the disk array.

The disk array stores GUIDs (Global Unique Identifiers) for identifying a plurality of volumes constituting the disk array, and accesses the volume by the initiator port of the host.

Wherein the data movement system includes: requesting an identifier designation command for identifying the volume of the disk array and volume information accessible to the disk array based on the identifier information of the initiator port; And the disk array receiving the identifier designation command and transmitting volume information accessible by each initiator port to the data movement system based on the identifier information of the initiator port.

Wherein the step e) comprises: transmitting a volume identification command to the volume to determine whether the data movement system duplicates volume information received from the disk array; Wherein the volume receiving the volume identification command comprises: transmitting a GUID (Global Unique Identifiers) designation message to the data movement system; And the data movement system includes registering the volume information if the volume information is not duplicated through the GUID designation message.

Wherein the data movement system comprises: determining identifier information of an initiator port of the host connected to the FC switch; Identifying a volume of an accessible disk array using the identifier information of the initiator port; And providing a data movement service including data copy, data backup, data replication and data movement for the volume of the identified disk array.

On the other hand, the description of the technology disclosed herein is merely an example for structural or functional explanation, and the scope of the right of the disclosed technology should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the disclosed technology should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the disclosed technology should not be construed as being limited thereby, as it does not mean that a particular embodiment must include all such effects or merely include such effects.

Also, the meaning of the terms described in the present invention should be understood as follows. The terms " first ", " second ", and the like are intended to distinguish one element from another, and the scope of the right 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.

Further, when an element is referred to as being "connected" to another element, it should be understood that other elements may also be present in the middle, although it may be directly connected to the other element. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions describing the relationship between components, such as "between", "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include " or " have " are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

A system and method for providing data movement service in a SAN network environment according to the present invention includes: copying, backing up, copying, and moving data to a volume of another disk array without changing the configuration of a host, FC switch, And the like can be provided.

1 is a diagram illustrating a configuration of a general SAN network system.
2 is a diagram illustrating a data movement service providing system in a SAN network environment according to an embodiment of the present invention.
3 is a diagram illustrating a configuration of a Fiber Channel based SAN network.
4 is a view for explaining a configuration of a host which is a part of the components of Fig.
Fig. 5 is a view for explaining a configuration of a disk array which is a part of Fig. 2; Fig.
Fig. 6 is a view for explaining a configuration of an FC switch which is a component of Fig. 2. Fig.
7 is a view for explaining a configuration of a data movement system which is a part of Fig.
8 is a diagram for explaining a state in which a data movement system is removed in a SAN network environment.
9 is a flowchart illustrating a method of providing a data movement service in a SAN network environment according to an embodiment of the present invention.
10 is a diagram for explaining a data movement service provision process of the data movement system.

FIG. 2 is a diagram illustrating a data movement service providing system in a SAN network environment according to an embodiment of the present invention, and FIG. 3 is a diagram illustrating a configuration of a Fiber Channel based SAN network.

2 and 3, the SAN network environment includes a host 100 including at least one initiator port S-1, S-2, a plurality of switch ports F-1, F-2, F- And a disk array 300 including at least one or more target ports D-1 and D-2. The disk array 300 includes a fiber channel (FC)

The Fiber Channel-based SAN network environment includes a host 100 such as a system or a server, a disk array 300, and an FC switch 200.

The host 100 is connected to the FC switch 200 using a physical FC cable and the disk array 300 is also connected to the FC switch 200 using a physical FC cable.

SAN networks can be point-to-point topologies, arbitrated loop topologies, switched fabric topologies, and so on. The components that make up this SAN network environment include FC ports in the HBA card.

The Host Bus Adapter (HBA) card allows interfacing between the host 100 and the disk array 300 through a direct connection with the disk array or a connection via the FC switch in a SAN network environment.

The initiator ports of the host 100 may be S-1 and S-2 and the target ports of the disk array 300 may be D-1 and D-2. The switch ports can be configured as F-1, F-2, F-3, and F-4.

The data moving system 400 includes an upstream FC port A-1 and a downstream FC port A-2 via the HBA card and is connected to the disk via the FC ports A-1 and A- F-2, F-3, and F-4 of the FC switch 200 and the target ports D-1 and D-2 of the array 300, respectively.

Therefore, the data transmitted / received between the disk array 300 and the host 100 is transmitted through the FC cable in the SAN network environment, and the communication uses the Fiber Channel Protocol (FCP). The host 100, the FC switch 200, and the disk array 300 can transmit SCSI commands over the SAN network

FIG. 4 is a view for explaining the configuration of a host which is a part of FIG. 2, FIG. 5 is a view for explaining the configuration of a disk array which is a part of FIG. 2, Fig. 2 is a diagram illustrating a configuration of a switch.

4, the host 100 includes an HBA card 130 including a service manager 110, a memory 120, and initiator ports S-1 and S-2.

The service manager 110 may be implemented as software or hardware as a functional component and controls the operation of various components within the host and the memory 120 stores data related to the host 100. [

Referring to FIG. 5, the disk array 300 includes a disk array manager 310, a memory 320, and a volume manager 330.

The disk array manager 310 controls the operation and operation of various components of the disk array 300. The disk array manager 310 can be functionally implemented using various data storage techniques for data storage.

The memory 320 may be configured in various forms for storing data in the disk array 300. The disk array 300 also executes target ports D-1 and D-2 in a plurality of HBA cards. The disk array manager 310 and the target ports D-1 and D-2 may be implemented as subsystems of the disk array controller.

Disk arrays typically provide disk array managers, memory, volume managers, and target ports, but they can also be implemented as subsystems or subsystems of disk array controllers.

The data stored in the disk array 300 is composed of a logical unit number (LUN), and is used in the same meaning as the volume.

The volume manager 330 is configured with a plurality of volumes, and data distributed to multiple devices can be stored in each volume.

Referring to FIG. 5, the FC switch 200 includes a switch manager 210 and a memory 220.

The switch manager 210 is a functional component that controls the operation of various components within the FC switch 200 and is implemented by a combination of software, hardware, software, and hardware.

The memory 220 stores control data of various components in the FC switch 200.

The switch ports of the FC switch 200 may be configured of F-1, F-2, F-3, and F-4. The switch administrator can send and receive I / O commands directly from the F-1 switch port to the F-3 switch port.

7 is a view for explaining a configuration of a data movement system which is a part of Fig.

Referring to FIG. 7, data movement system 400 includes data movement service provider 410, memory 420, and processor 430.

The data movement service provider 410 is composed of FC ports A-1 and A-2 for data movement and is inserted between the switch port of the FC switch 200 and the target port of the disk array 300. [

The memory 420 stores data that is moved through the data movement service provider 410.

The processor 430 communicates over the SAN network to control the operation of the data movement service provider 410 and the memory 420 and to send and receive information related to the data stored in the disk array 300.

When the FC port of the data movement system 400 is connected to the FC switch 200 in the SAN network environment, FC login and registration procedures are performed together with the switch port of the FC switch 200.

At this time, the FC port and the switch port are assigned a unique identifier called WWPN (World Wide Port Number) by the manufacturer of the device, and each WWPN can be made up of predetermined 64-bit numbers. Therefore, the initiator port of the host 100 and the target port of the disk array 300 have a unique WWPN for each port, and the FC switch 200 can access the SNS table 230) is used.

Table 1 is the SNS table, and the SNS table stores the identifier information of the switch port of the FC switch 200 related to the WWPN of the initiator port and the target port.

That is, in the SNS table, the identifier information (WWPN-1) of the S-1 initiator port is connected to the F-1 switch port of the FC switch 200, the F-2 switch port is connected to WWPN- 3 The switch port is connected to WWPN-3, and the F-4 switch port shows port connection information connected to WWPN-4F.

This SNS table is stored in the memory 220 of the FC switch 200 and the host 100 and the disk array 300 can access the SNS table of the FC switch 200. [

When the initiator port of the host 100 and the target port of the disk array 300 are respectively connected to the switch ports of the FC switch 200, the initiator port and the target port are connected to the FC switch 200, And sends the request. The SNS table performs information update to reflect the port connection information to record the port requested to be registered and the identifier information (WWPN) of the switch port of the FC switch 200 corresponding thereto.

If the initiator port or the target port is disconnected from the FC switch 200, the SNS table updates the information to reflect the port disconnection information.

8 is a diagram for explaining a state in which a data movement system is removed in a SAN network environment.

Referring to FIG. 8, the data movement system 400 is disconnected between the F-4 switch port of the FC switch 200 and the D-2 target port of the disk array 300. At this time, the host 100 is configured as a multi-path function, so that when at least one initiator port is maintained in connection with the switch port of the FC switch 200, data of the volume serviced by the disk array 300 The flow is not interrupted.

The service manager 110 of the host 100 detects the disconnection state and determines that the S-2 initiator port can not communicate with the disk array 300. [ The service manager 110 may use the multipath capability to use the IO command for Volume-1 redirecting from the S-2 initiator port to the S-1 initiator port, and the other It is possible to continue communication with the disk array 300 through the path.

2, the A-1 FC port of the data movement system 400 is connected to the F-4 switch port of the FC switch 200 and the A-2 FC port of the data movement system 400 is connected to the F- D-2 is connected to the target port.

The data movement system 400 communicates with the SAN network to obtain information related to the data stored in the disk array 300. The identifier information (WWPN) of the target port of the disk array 300 can be identified by the A-2 FC port located in the path between the target port of the disk array 300 and the switch port of the FC switch 200. When the D-2 target port of the disk array 300 is connected to the A-2 FC port of the data movement system 400, the D-2 target port tries to connect to register the data movement system 400.

The D-2 target port transmits a registration request composed of the identifier information of the D-2 target port to complete the FC login to the data movement system 400. That is, the data movement system 400 receives the identifier information of the target port of the disk array 300 when the disk array 300 is initially connected to the disk array 300, Obtains the identifier information of the port, and uses the FC switch 200 for FC login and registration.

The data movement system 400 receives registration information for registering an initiator port from the host 100 connected to the FC switch 200. This registration information is stored in the downstream FC port A -2).

The data movement system 400 uses the identifier information of the target port to obtain the identifier information of the initiator port of the host 100 while communicating with the disk array 300. [ And communicates with the disk array 300 using the identifier information (WWPN) of the initiator port and receives volume information accessible from the initiator port of the host 100 from the disk array 300.

At this time, the volume identification information identifying the data or the volume is stored in the disk array 300, and the volume can be accessed by the initiator port of the host 100.

In this way, the data movement system 400 confirms the identifier information of the target port of the disk array 300 and the identification information of each initiator port of the host 100, the volume information of all the disk arrays 300 assigned to each initiator port of the zoning host can be checked.

9 is a flowchart illustrating a method of providing a data movement service in a SAN network environment according to an embodiment of the present invention.

9, a method of providing a data movement service in a SAN network environment includes the steps of: (1) determining whether the upstream FC port (A-1) of the data movement system is connected to the FC switch 200 The FC login or registration procedure is carried out (S11)

At this time, the A-1 FC port uses the identifier information of the D-2 target port, and acquires the identifier information through the SNS table stored in the FC switch 200.

The data movement system 400 requests the FC switch 200 to register for the A-1 FC port using the identifier information of the D-2 target port, and the FC switch 200 transmits the identifier information of the D- And registers the A-1 FC port in step S12.

The data movement system 400 receives registration information related to the initiator port of the host 100 connected to the D-2 target port from each initiator port. (S13) At this time, the registration information is the identifier of the initiator port Information, and identifier information of the switch port connected to the initiator port.

When the A-1 FC port registers all the initiator ports of the host 100 that are zoned with the D-2 target port to the FC switch 200 using the identifier information of the D-2 target port as A-1 FC Register in the port.

Therefore, the S-2 initiator port registers with the downstream FC port A-2 of the data movement system 400 and registers with the A-1 FC port identifying the WWPN with the A-1 FC port, I.e., its own identifier information and identifier information of the F-2 switch port.

The data movement system receives the registration information and verifies WWPN information of the initiator port of the host 100. (S14) In other words, the processor 430 of the data movement system 400 receives the WWPN information of the S- 2 is the WWPN-2.

In the same manner, the data movement system 400 confirms the WWPN of each initiator port of the host 100 that is being zoned with the D-2 target port of the disk array 300.

At this time, the data movement system 400 can receive the registration information from the initiator port that does not include the WWPN information of the initiator port, and the registration information includes a switch port for identifying the switch port connected to the initiator port As shown in FIG.

The data movement system 400 searches for the identifier information capable of accessing the SNS table stored in the FC switch 200 and refers to the SNS table using the retrieved identifier information so that the identifier information of the F-2 switch port is WWPN-2 .

The FC switch 200 accesses the SNS table and provides the data movement system 400 with the identifier information of the initiator port of the host 100 that is being zoned with the D-2 target port.

The data movement system 400 checks the volume information of the disk array associated with the initiator port based on the identifier information of the initiator port (S15)

At this time, the processor 430 of the data movement system 400 uses the standard procedure to add the identifier information of the initiator port that is zoned with the D-2 target port to the A-2 FC port, WWPN-2, which is the identifier information of the S-2 initiator port.

After the data movement system 400 adds the identifier information of the initiator port to the A-2 FC port, the data movement system 400 can obtain the volume identification information using the identifier information of each initiator port accessible from the disk array 300.

In order to obtain the identifier information of the initiator port associated with the A-2 FC port of the data movement system 400, the processor 430 determines whether the initiator port identified in the disk array 300 To the disk array 300, volume request information that can be accessed using the identifier designation command designating the identifier information and the identifier information of the initiator port. At this time, the process can send the REPORT LUN command according to the SCSI command standard.

The disk array 300 receives the identifier designation command and transmits corresponding volume information to the data movement system 400 using the identifier information of the initiator port corresponding thereto.

If the disk array 300 transmits volume information (volume-1? WWPN-2) indicating identification information (WWPN-2) of the initiator port accessing volume-1 to the data movement system 400.

The data movement system 400 checks how many volumes of the specific volume of the disk array 300 can access the identification information of the various initiator ports and volume information that can be accessed by the identifier information of the new initiator port is also stored in the disk array 300. [ Lt; / RTI > Thus, the data movement system can receive and analyze volume information from the disk array that represents more storage volumes than is actually present.

The data movement system 400 transmits a volume identification command to a corresponding volume for extracting GUIDs (Global Unique Identifiers) associated with the volume to check whether the volume information received from the disk array 300 is duplicated.

The volume receiving the volume identification command transmits a GUID designation message to the data movement system 400, and the data movement system 400 determines whether to register the volume based on the received GUID.

In this way, the data movement system 400 can check the identifier information of the initiator port of the host 100 that is being zoned with the target port of the disk array 300, and can access the identifier using the identifier information of the initiator port The volumes in the disk array 300 may be identified, which may be used to identify multiple WWPNs.

Accordingly, the data movement system 400 provides a data movement service of the data stored in the disk array 300. [ The data movement service includes data copying, data backup, data replication, and data movement from the volume of the disk array or from the host 100 to another device. In addition, the volume (or data) of the disk array 300 identified by the data movement system and the volume (or data) used in the host 100 may be transmitted to the user using the interface.

When the new data is stored in the volume of the disk array 300 by the host 100, the storage is completed and data copying proceeds for data accuracy. While copying data, the data movement system 400 continuously records and manages the location of the data stored in the volume to track the data being changed.

The data movement system 400 keeps a track of new data stored in the volume and keeps up-to-date data by copying new data in the next copy with reference to the record indicating the location of the new data after the first data copy is completed.

10 is a diagram for explaining a data movement service provision process of the data movement system.

10, the data movement system 400 confirms the identifier information of the initiator port of the host connected to the FC switch. (S21) The S-2 initiator connected to the F-2 switch port of the FC switch 200 The identifier information of the port is WWPN-2.

The data movement system 400 confirms the volume information of the accessible disk array 300 using the identifier information of the initiator port (S22). That is, the data movement system accesses the volume-1 of the disk array 300 2 to identify possible WWPN-2, and transmits to the disk array 300 an identifier designation command specifying the identifier information of the initiator port of the host 100. [ At this time, the identifier designation command is transmitted to the disk array 300 instead of the IO command for data movement. At this time, the IO command permits the data movement service to execute a specific action.

The data movement system 400 provides a data movement service for the volume of the identified disk array (S23)

As shown in FIG. 7, the data movement service provider 410 accesses volume-1 and copies the volume-1 data to another volume.

Before copying the data, the data movement service provider 410 of the data movement system 400 instructs the processor 430 to intercept all data write commands and sequentially copies the volume's data from start to finish. New data that is changed while the copy is being performed may be stored in a portion of the volume where the copy is completed.

For the latest copy data, the data movement service provider 410 records the total location of the new data stored in the volume and copies the location where the new data is stored in the next copy after the first copy is complete.

The data movement service provider 410 may monitor the IO commands to be transmitted and received to and from specific volumes held in the disk array and may generate statistics related to IO commands.

The data movement service provider 410 may monitor traffic to and from a particular disk array volume.

As such, the data movement system 400 may provide data movement services between a new disk array or a different disk array in an existing disk array among a plurality of enterprise-level disk arrays. In the SAN network environment, the data moving system 400 can be inserted and used without interrupting the operation of the disk array or the components of the SAN network.

In addition, the data movement system 400 is very useful for additionally using data copying, data replication, and data movement functions to the volume of a disk array or other disk array.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: Host 200: FC switch
300: Disk array 400: Data movement system
410: data movement service provider 420: memory
430: Processor

Claims (16)

A data movement service is provided in a SAN network environment including a host including at least one initiator port, a Fiber Channel (FC) switch including a plurality of switch ports, and a disk array including at least one target port A data movement service providing system in a SAN network environment,
A data movement service provider for performing a data movement service through a plurality of FC ports connected to a target port of the disk array and a switch port of the FC switch;
A memory for storing data moved through the data movement service provider; And
And a processor for communicating over the SAN network to control operation of the data movement service provider and the memory and to transmit and receive information related to data stored in the disk array. .
The method according to claim 1,
The FC switch
A switch manager for controlling operations of functional components executed by a combination of hardware, software, software and hardware in the FC switch; And
And a memory for storing control data of the functional components.
3. The method of claim 2,
The memory
And an SNS table for storing identifier information allocated to each port including the initiator port, the switch port, and the target port, and port connection information between the ports.
The method of claim 3,
Wherein the host and the disk array have access rights to the SNS table stored in the memory of the FC switch.
The method of claim 3,
Wherein an initiator port of the host and a target port of the disk array transmit an FC login request to the FC switch for connection with a switch port of the FC switch,
The SNS table reflects the port connection information to record the port for the FC login request and the identifier information of the corresponding switch port. The SNS table reflects port connection information of the FC switch, the initiator port, The data movement service providing system in the SAN network environment.
[Claim 6 is abandoned due to the registration fee.] The method according to claim 1,
The processor comprising:
Identifying a volume of the disk array accessible using the identifier information of the initiator port of the host, communicating with the FC switch using the identifier information of the target port, and issuing an IO command for data movement from the disk array Intercepts all the commands transmitted and received between the disk array, the FC switch, and the host, transmits an identifier designation command including the identifier information of the initiator port to the disk array, And receives volume information identifying a volume of the disk array from the disk array.
[7] has been abandoned due to the registration fee. The method according to claim 1,
Wherein the data movement service provider comprises:
Accessing the volume-N of the disk array using the identifier information of the initiator port of the host, copying the data stored in the volume-N to another volume, recording the storage location of new data stored in the volume, Wherein the management server manages the data movement service in the SAN network environment.
[8] has been abandoned due to the registration fee. The method according to claim 1,
Wherein the data movement service provider comprises:
Monitoring the I / O commands for data movement to and from the volume of the disk array to generate statistical information related to the IO command, and monitoring traffic sent to and received from the volume. system.
[Claim 9 is abandoned upon payment of registration fee.] A data movement service is provided in a SAN network environment including a host including at least one initiator port, a Fiber Channel (FC) switch including a plurality of switch ports, and a disk array including at least one target port A method for providing a data movement service in a SAN network environment,
a) connect a downstream FC port of the data movement system providing the data movement service to a target port of the disk array, and transmit the upstream FC port of the data movement system to the target port based on the identifier information of the target port Requesting an FC switch to register for FC login;
b) registering the upstream FC port using the identifier information of the target port according to a registration request of the upstream FC port;
c) receiving, from the initiator port of the host interlocked with the target port, registration information including its own identifier information and identifier information of a switch port associated with the initiator port;
d) the FC switch transmits registration information for an initiator port of a zoned host to the target port to the data movement system, and the data movement system uses the identifier information of the target port to transmit the registration information Confirming the identifier information of the initiator port through the initiator port; And
e) The data movement system identifies the initiator port identifier information accessible based on the identifier information of the target port, and communicates with the disk array based on the identifier information of the initiator port to transmit data stored in the disk array And providing a data movement service related to the identified data. ≪ Desc / Clms Page number 20 >
[Claim 10 is abandoned upon payment of the registration fee.] 10. The method of claim 9,
The FC switch stores an SNS table storing identifier information and port connection information allocated to each port including the initiator port, the switch port, and the target port,
Wherein the host and the disk array have access rights to the SNS table.
[Claim 11 is abandoned upon payment of the registration fee.] 10. The method of claim 9,
The step b)
The upstream FC port of the data movement system registers all the initiator ports of the host being zoned with the target port,
Wherein the initiator port of the host registers the initiator port in the downstream FC port after transmitting the registration information.
[12] has been abandoned due to the registration fee. 12. The method of claim 11,
The step b)
The data movement system proceeds with a standard procedure for registering the identifier information of the initiator port zapped with the target port in the downstream FC port and using the identifier information of each initiator port accessible from the disk array And extracting volume identification information of the disk array.
[13] has been abandoned due to the registration fee. 10. The method of claim 9,
Wherein the disk array stores GUIDs (Global Unique Identifiers) for identifying a plurality of volumes constituting the disk array, and accesses the volume by the initiator port of the host. Delivery method.
[14] has been abandoned due to the registration fee. 10. The method of claim 9,
The step e)
Requesting an identifier designation instruction for identifying the volume of the disk array and volume information accessible from the disk array based on the identifier information of the initiator port;
Wherein the disk array receives the identifier designation command and transmits volume information accessible by each initiator port to the data movement system based on the identifier information of the initiator port. The method comprising the steps of:
[Claim 15 is abandoned upon payment of registration fee] 14. The method of claim 13,
The step e)
Transmitting a volume identification command to the volume to determine whether the data movement system duplicates volume information received from the disk array;
Wherein the volume receiving the volume identification command comprises: transmitting a GUID (Global Unique Identifiers) designation message to the data movement system; And
Wherein the data movement system includes registering the volume information if the volume information is not duplicated through the GUID designation message.
[Claim 16 is abandoned upon payment of registration fee.] 10. The method of claim 9,
The step e)
The data movement system comprising: determining identifier information of an initiator port of the host connected to the FC switch;
Identifying a volume of an accessible disk array using the identifier information of the initiator port; And
And providing a data movement service including data copy, data backup, data replication, and data movement to the volume of the identified disk array.

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