JP5505380B2 - Relay device and relay method - Google Patents

Description

  The present invention relates to a network device connection apparatus and a network device connection method for performing connection settings between network devices using device identification information for uniquely identifying network devices, and particularly necessary when replacing network devices due to a failure or the like. The present invention relates to a relay apparatus and a relay method that can reduce the setting change of the device identification information and reduce the labor for the setting change work.

  Conventionally, in a SAN (Storage Area Network), since a plurality of servers and a plurality of storages are connected to a single network, security settings for restricting access between the servers and the storage are performed. For this security setting, a WWN (World Wide Name) preset in advance for each FC (Fibre Channel) port of each FC network device such as a server, storage, or FC switch is used. The WWN includes a WWNN (World Wide Node Name) for identifying a device and a WWPN (World Wide Port Name) for identifying an FC port.

  For example, in an FC switch that relays a server and storage, a setting called zoning is performed. This zoning setting uses WWN to divide the HBA (Host Bus Adapter) FC port of the server and the FC port of the storage into a group called a zone and restrict access beyond the zone.

  In the server, a setting called target binding is performed. The target binding setting is a setting for defining the storage target ID and the storage WWN in association with each other and mapping the SCSI protocol to the FC protocol.

  In the storage, a setting called host affinity is performed. The host affinity is a setting in which the server's HBA and storage are defined in association with each other WWN, and access from a server having an undefined WWN is rejected.

  By the way, usually, a large number of FC network devices are connected to the SAN. For this reason, when performing the above-described security setting, it is necessary to set an enormous number of WWNs in each FC network device, which requires a great deal of labor. This is not limited to the initial construction, and the same applies to the case where some FC network devices are replaced for reasons such as failure. In this case, it is necessary to change the WWN setting for all FC network devices related to the FC network device to be replaced, which also requires a great deal of labor.

  In the SAN construction work including such security settings, a great deal of labor and time is a problem, and various techniques have been devised to reduce these. For example, in Patent Document 1, device information of FC network devices that constitute a SAN is input in advance, and a virtual network configuration image created based on the information is displayed on the screen to visually confirm the information. However, an apparatus that can easily design a SAN is disclosed.

International Publication No. 03/085894

  However, even in the above-described conventional technique, it is necessary to change the settings of all the related FC network devices in the end, and there is a problem that there is a limit in reducing labor and time.

  In one aspect, there is provided a relay device and a relay method that can reduce the labor required for setting change by eliminating the need to change the setting of device identification information that is required when replacing network devices due to a failure or the like. The purpose is to do.

  The disclosed apparatus is a relay apparatus that relays communication between information processing apparatuses. When a second information processing apparatus is connected instead of the first information processing apparatus, the disclosed apparatus is connected to the first information processing apparatus. When an access request is received from a device identification information control unit that associates the set device identification information with the second information processing device and an upper device, the device identification information is associated with the device identification information included in the access request. And a communication control unit that transmits the access request to the second information processing apparatus.

  Further, in the disclosed device, the device identification information control unit causes the first information processing device to operate when the first information processing device has an abnormality and the second information processing device is connected to a relay device. The apparatus identification information set for the apparatus is associated with the second information processing apparatus.

  Further, the present invention provides a relay method for a relay device that relays communication between information processing devices, wherein the relay device is connected to a second information processing device instead of the first information processing device. When the device identification information set for the first information processing device is associated with the second information processing device and an access request is received from a host device, the device identification information included in the access request Each process of transmitting the access request is executed on the second information processing apparatus associated with the second information processing apparatus.

  In the disclosed technology, when data is received from the currently connected network device, the device identification information used in the connection setting is associated with the device identification information of the currently connected network device. Based on the device management information, the device identification information set in the received data is converted to the device identification information used in the connection setting, while the data is transmitted to the currently connected network device, Based on the connected device management information, the device identification information set in the data to be transmitted is converted to the device identification information of the currently connected network device, and the data is transmitted. It is possible to eliminate the need to change the settings for device identification information that is required when replacing devices. An effect that it is possible to reduce the effort.

  In addition, since the disclosed technology is configured to acquire the device identification information of the connected network device and register it in the connected device management information storage unit when the network device is connected, the connected device management information is automatically Therefore, it is possible to reduce the labor for setting change.

  In addition, since the disclosed technology is configured to change the association of the device identification information of the connected device management information based on an instruction from the user, a new connection can be made even when a network device is replaced due to a failure or the like. By associating device identification information that has been connected to the connected network device, it is possible to continue to use the device identification information that is used in the network device connection settings. It is possible to eliminate the need to change the setting of the device identification information required when performing the operation, and as a result, it is possible to reduce the labor required to change the setting.

  In addition, since the disclosed technology is configured to use WWN (World Wide Name) for device identification information that uniquely identifies a network device, even when a storage or a server is replaced due to a failure or the like in a SAN, It is possible to eliminate the need to change various settings using WWNN and WWPN, such as zoning settings to be set and target binding settings to be set on the server, reducing the labor required for setting changes. There is an effect that can be.

It is a figure for demonstrating the concept of the FC switch which concerns on a present Example. It is a functional block diagram which shows the structure of the FC switch which concerns on a present Example. It is a figure which shows an example of a connection apparatus management list. It is a figure for demonstrating the update of the connection apparatus management list | wrist by registration of apparatus information, apparatus invalidation processing, and mapping change processing. It is a flowchart which shows the process sequence of a management list registration process part. It is a flowchart which shows the process sequence of the apparatus invalidation process by a management list change process part. It is a flowchart which shows the process sequence of the mapping change process by a management list change process part. It is a flowchart which shows the process sequence of a WWN conversion process part. It is a flowchart which shows the process sequence of the WWN conversion process shown in FIG.

  Exemplary embodiments of a relay device and a relay method according to the present invention will be described below in detail with reference to the accompanying drawings. In this embodiment, the case where the present invention is applied to an FC switch will be mainly described. In this embodiment, a case where WWPN is used for target binding setting and zoning setting will be described.

  First, the concept of the FC switch according to the present embodiment will be described. FIG. 1 is an explanatory diagram for explaining the concept of the FC switch according to the present embodiment. The figure shows a SAN composed of a server 10, a storage 20, and an FC switch 100.

  In the “state 1” shown in the figure, the FC switch 100 is connected so as to relay between the server 10 and the storage 20, and specifically, the FC port 1 of the FC switch 100 and the server 10 HBA FC ports (FC port not shown) are connected, and FC port 2 of the FC switch 100 and FC port (FC port not shown) of CA (Channel Adapter) 1 of the storage 20 are connected. It is connected.

  In addition, a unique WWPN is set for each of the HBA FC port of the server 10 and the CA1 FC port of the storage 20, and “WWPN0” is assigned to the HBA FC port of the server 10 and the CA1 of the storage 20 “WWPN1” is set for each FC port.

  The server 10 uses the WWPN to identify information for the OS to identify the CA1 FC port so that the connection between the HBA FC port of the server 10 and the CA1 FC port of the storage 20 is permitted. Target binding setting in which “TARGET1” and “WWPN1” are associated with each other is performed, and in the FC switch 100, the HBA of the server 10 and the CA1 of the storage 20 belong to the same zone. Zoning setting in which “WWPN0” and “WWPN1” are associated with each other is performed.

  Here, the FC switch 100 includes the WWPN of the currently connected FC network device and the connection setting performed at the time of SAN construction in case the FC network device connected to the FC switch 100 is replaced. The connected device management list in which the WWPN used in is associated is stored. For example, if the “state 1” shown in the figure is a state where the FC network device has not yet been replaced, the WWPN of the currently connected FC network device and the connection made at the time of SAN construction Since it is the same as the WWPN used in the settings, “WWPN0”, which is the WWPN of the HBA FC port of the server 10 connected to the FC port 1, is stored in association with “WWPN0”. “WWPN1” is stored in association with “WWPN1” which is the WWPN of the FC port of the CA1 of the storage 20 connected to the port 2.

  In such a SAN, for example, a failure has occurred in CA1 of the storage 20, so that the connection destination of the FC port 2 of the connection FC switch 100 is the CA1 connected to the disk 1, as shown in “state 2” in FIG. Is changed from the FC port (FC port not shown) to the CA2 FC port connected to the disk 2 (FC port not shown).

  Along with this connection destination change, a user (for example, a network administrator or the like) changes the connected device management list stored in the FC switch 100 from, for example, a SAN network management terminal or the like. For example, if the WWPN of the FC2 port of the CA2 of the storage 20 is “WWPN2”, the user sets the WWPN associated with “WWPN1” (WWPN of the FC port of CA1) in the connected device management list to “ Change from “WWPN1” to “WWPN2” (WWPN of the FC port of CA2).

  As a result, data can be transmitted and received between the server 10 and the storage 20 without changing the target binding setting of the server 10 and the zoning setting of the FC switch 100.

  For example, it is assumed that an access request (FC frame) for the FC port of CA1 of the storage 20 is transmitted from the server 10 in the “state 2” state shown in FIG. In the access request transmitted here, “WWPN1” which is the WWPN of the FC port of the CA1 of the storage 20 is set as the transmission destination. At this time, the FC switch 100 determines the WWPN included in the received access request based on the stored connected device management list, and the FC port of the CA 2 of the storage 20 connected to the FC switch 100 at this time. It is converted to “WWPN2” which is the WWPN. Then, the FC switch 100 transmits an access request after WWPN conversion to the storage 20.

  When the FC switch 100 receives an access response (FC packet) from the CA2 FC port of the storage 20, the FC switch 100 is the WWPN of the CA2 FC port of the storage 20 set as a transmission source in the access request. “WWPN2” is converted to “WWPN1” based on the connected device management list. Then, the FC switch 100 transmits an access response after WWPN conversion to the server 10 (the access response is not shown).

  As described above, when the FC switch 100 according to the present embodiment receives data from the currently connected FC network device, the device identification information used in the connection setting and the currently connected FC network Based on the connected device management list in which the WWPN of the device is associated, the WWPN set in the received data is converted to the WWPN used in the connection setting, while the data is transferred to the FC network device currently connected. In the case of transmission, the data is transmitted after converting the WWPN set in the data to be transmitted to the WWPN of the currently connected FC network device based on the connected device management information. It is possible to eliminate the need to change the WWPN settings required when replacing network devices. It is possible to reduce the effort required to work of constant change.

  Here, for convenience of explanation, only one or two FC ports are shown for the server 10, the storage 20 and the FC switch 100. However, the server 10, the storage 20 and the FC switch 100 include one or more FC ports. An FC port may be provided. Although only one server and one storage are shown here, a plurality of servers 10 and a plurality of storages may be connected to the FC switch 100.

Next, the configuration of the FC switch 100 according to the present embodiment will be described. FIG. 2 is a functional block diagram illustrating the configuration of the FC switch 100 according to the present embodiment. As shown in the figure, the FC switch 100 includes FC ports 110 _{1 to} 110 _n , a connected device management list 120, a management list registration processing unit 130, a management list change processing unit 140, and a WWN conversion processing unit 150. And have.

The FC ports 110 _{1 to} 110 _n are connection ports for connecting the server 10, the storage 20, and the like to the FC switch 100.

  The connected device management list 120 stores connected device management information in which device identification information of the FC network device connected at the time of connection setting is associated with device identification information of the FC network device currently connected. This is a storage unit. FIG. 3 is a diagram illustrating an example of the connected device management list 120. Specifically, as shown in the figure, the connected device management list 120 includes a serial number, a mapped number, WWN (WWNN and WWPN), device information (these WWN and device information together, Connected device management information associated with the device identification information) is stored.

  Here, the serial number is a serial number assigned to each WWPN of the FC network device. The mapped number is a number used in the WWN conversion processing by the WWN conversion processing unit 150 described later. The initial value is set to the same value as the serial number, and the FC network device is removed due to a failure or the like. Is set with a value (null value in the example shown in FIG. 3) indicating that the WWPN of the FC network device has been invalidated by device invalidation processing by the management list change processing unit 140 described later. When an invalid WWPN is assigned in the mapping change process by the management list change processing unit 140, the assigned WWPN serial number is set. The device information includes the vendor name, device name, and model name of the FC network device. The connected device management list 120 may be integrated in the name service DB.

  Returning to FIG. 2, when the FC network device is connected to the FC switch 100, the management list registration processing unit 130 acquires device identification information of the connected FC network device and registers it in the connected device management list 120. It is a processing unit.

  Specifically, when the FC network device is connected to the FC switch 100 when the SAN is constructed or the FC network device is added, the management list registration processing unit 130 receives device identification information (WWN) from the connected FC network device. And device information), and a serial number and a mapped number are added and registered in the connected device management list 120. At this time, a serial number following the last serial number registered at that time is set as the serial number, and the same number as the serial number is set as the mapped number.

  In this way, when the FC network device is connected, the management list registration processing unit 130 acquires the device identification information of the connected FC network device and registers it in the connected device management list 120, thereby connecting device management. It is possible to automatically generate the list 120, and it is possible to reduce labor for setting change.

  The processing procedure of the management list registration processing unit 130 will be described later with reference to FIG.

  The management list change processing unit 140 is a processing unit that invalidates device identification information (device invalidation processing) and changes association of device identification information (mapping change processing) based on a user instruction. The management list change processing unit 140 has an interface with a means for acquiring input from a user such as a management terminal connected to an operation panel or a management network, a management terminal connected to a SAN, and the like. In response to an instruction from the user, processing related to changing the device identification information registered in the connected device management list 120 is performed.

  Specifically, when the management list change processing unit 140 is instructed by the user to invalidate the device identification information, the management list change processing unit 140 updates the connected device management list 120 based on the serial number designated by the user at that time. The device identification information (WWN and device information) corresponding to the serial number is acquired by referring to the information.

  Then, the management list change processing unit 140 checks whether the information of the FC network device that matches the acquired device identification information exists in the name service information held by the FC switch 100 and does not exist. If it is determined that the FC network device of the device identification information is not connected to the FC switch 100, the device identification information is invalidated. As the name service information used here, device information (including device identification information) of all FC network devices connected to the FC switch 100 is set. When the FC network device connected to 100 is changed, it is updated as needed according to the latest state.

  That is, the management list change processing unit 140 sets the mapped number to null for the connected device management information corresponding to the serial number specified by the user among the connected device management information stored in the connected device management list 120. Set the value.

  Here, when the management list change processing unit 140 removes the FC network device due to a failure or the like by invalidating the device identification information of the FC network device removed from the SAN based on an instruction from the user. The device identification information of the FC network device can be assigned to the newly connected FC network device.

  On the other hand, when the management list change processing unit 140 is instructed by the user to invalidate the device identification information, the management list change processing unit 140 performs the device identification based on the serial number of the device identification information of the change source designated by the user at that time. Information with matching WWNN, matching with vendor name, matching with device name, or matching with model name is extracted from connected device management information stored in connected device management list 120 Then, the user is notified as a candidate of the device identification information of the change destination.

  Here, the management list change processing unit 140 stores the device identification information candidates associated with the FC network device newly connected to the network based on the instruction from the user, stored in the connected device management list 120. By extracting from the device management information and notifying the user, when the user changes the association of the device identification information, the FC network suitable for the change destination from among many FC network devices connected to the SAN The effort to search for equipment can be reduced.

  When the user designates the device identification information of the change destination from the notified device identification information, the management list change processing unit 140 refers to the connected device management information stored in the connected device management list 120 and changes the device identification information. The mapped number corresponding to the previous device identification information is a null value, and the connected device management information with the serial number corresponding to the changed device identification information as the mapped number is not registered in the connected device management list 120. Is confirmed, it is determined that the device identification information can be mapped as a change destination, and the mapping of the device identification information designated as the change source is changed.

  That is, the management list change processing unit 140 applies the connection device management information corresponding to the change source device identification information designated by the user among the connection device management information stored in the connection device management list 120. The serial number of the device identification information of the change destination that has been determined that mapping is possible is set in the mapped number.

  Here, the management list change processing unit 140 associates the invalid device identification information with the FC network device newly connected to the network based on an instruction from the user. It is possible to reuse the device identification information of the removed FC network device, eliminating the need to change the device identification information setting required when replacing the FC network device, and reducing the effort required to change the setting. Can be reduced.

  As described above, the management list change processing unit 140 changes the association of the device identification information of the connected device management information stored in the connected device management list 120 based on an instruction from the user, so that a failure or the like occurs. Even when the FC network device is replaced, the device identification information used in the connection setting of the FC network device is continued by associating the newly connected FC network device with the device identification information that has been connected so far. This makes it possible to eliminate the need to change the setting of device identification information that is required when replacing FC network devices due to a failure or the like. can do.

  The processing procedure of device invalidation processing and mapping change processing by the management list change processing unit 140 will be described later with reference to FIGS.

  Here, a specific example of the connected device management list 120 updated by the device information registration by the management list registration processing unit 130 and the device invalidation processing and mapping processing by the management list change processing unit 140 will be described using a specific example. explain. FIG. 4 is a diagram for explaining the update of the connected device management list 120 by device information registration, device invalidation processing, and mapping processing.

  For example, as shown in “state 1” shown in FIG. 4, the connected device management list 120 includes serial number “0”, mapped number “0”, WWNN “WWNN0”, WWPN “WWPN0”, and device information. Connected device management information “vendor name 0, device name 0, model name 0”, serial number “1”, mapped number “1”, WWNN “WWNN1”, WWPN “WWPN1”, device information Assume that connected device management information of “vendor name 1, device name 1, model name 1” is registered.

  Here, since a failure has occurred in the FC network device whose WWPN is “WWPN1”, the WWNN is “WWNN1”, the WWPN is “WWPN2”, and the device information is “vendor name 0, device name 0, model name 0” Is connected to the FC switch 100. Then, the management list registration processing unit 130 newly adds the serial number “2”, the mapped number “2”, and the WWNN “in” to the connected device management list 120 as “status 2” shown in FIG. The connected device management information with “WWNN1”, WWPN “WWPN2”, and device information “vendor name 2, device name 2, model name 2” is registered.

  Then, it is assumed that a device invalidation process is performed on the failed “WWPN1” FC network device by the user. Then, the management list change processing unit 140 applies the mapped device management information of the FC network device of “WWPN1” registered in the connected device management list 120 as shown in “state 3” in FIG. A null value is set for the number.

  Further, mapping is performed by the user to change the WWPN (change source) of the FC network device newly connected by WWPN “WWPN2” to “WWPN1” that is the WWPN (change destination) of the failed FC network device. Assume that a change process has been performed. Then, the management list change processing unit 140 sets the mapped number to the connected device management information whose WWPN registered in the connected device management list 120 is “WWPN2” as shown in “state 4” in FIG. , “1” which is the serial number of the connected device management information whose WWPN is “WWPN1” is set.

  As described above, when the replacement of the FC network device occurs, by changing the correspondence of the device identification information registered in the connected device management list 120 based on the user's instruction, the connection is made until then. The device identification information of the FC network device can be handled as the identification information of the newly connected FC network device, and the setting change performed using the device identification information can be made unnecessary.

  Returning to FIG. 2, when the WWN conversion processing unit 150 transmits / receives data to / from the FC network device connected to the FC switch 100, the WWN conversion processing unit 150 is based on the connected device management information stored in the connected device management list 120. The WWN (WWNN and WWPN) included in the data to be transmitted / received is converted into the WWN used for connection setting, and then the data is transmitted / received.

  Specifically, the WWN conversion processing unit 150 is set to the FC frame to be transmitted / received among the connected device management information stored in the connected device management list 120 when the FC switch 100 transmits / receives the FC frame. Connected device management information that matches WWN (WWNN and WWPN) is acquired.

  If the serial number and mapped number of the acquired connected device management information are the same, the WWN conversion processing unit 150 does not convert the WWN of the FC frame, and the serial number and mapped number are the same. If not, it is confirmed whether or not the mapped number of the connected device management information is a null value.

  If the mapped number is not a null value, the WWN conversion processing unit 150 acquires from the connected device management list 120 connected device management information in which the number set in the mapped number matches the serial number. Then, the WWN of the acquired connected device management information is set in the FC frame, and transmission / reception is performed.

  On the other hand, when the mapped number is a null value, the WWN conversion processing unit 150 manages the connected device management information in which the number set in the serial number of the connected device management information matches the mapped number. Obtained from the list 120, sets the WWN of the obtained connected device management information in the FC frame, and performs transmission / reception.

  As described above, when the WWN conversion processing unit 150 transmits / receives data to / from the connected FC network device, the FC to be transmitted / received based on the connected device management information stored in the connected device management list 120. Since the WWN set in the frame is converted to the WWN used in the connection setting and then the data is transmitted and received, the setting change of the device identification information required when the FC network device is replaced due to a failure or the like Can be eliminated, and the labor required to change the setting can be reduced.

  The processing procedure of the WWN conversion process by the WWN conversion processing unit 150 will be described later with reference to FIGS. 8 and 9.

  Next, the processing procedure of the management list registration processing unit 130 will be described. FIG. 5 is a flowchart showing the processing procedure of the management list registration processing unit 130. As shown in the figure, when an FC network device is connected to the FC switch 100 (S101) when the SUN is constructed or when an FC network device is added, the management list registration processing unit 130 is connected to the FC network. Device identification information of the device is acquired (step S102).

  Then, the management list registration processing unit 130 checks whether or not a device that matches the acquired device identification information has already been registered in the connected device management list 120, and if it has not been registered (No in step S103). Then, the device identification information is registered in the connected device management list 120 (step S104).

  On the other hand, if a device that matches the acquired device identification information has already been registered in the connected device management list 120 (Yes in step S103), the management list registration processing unit 130 performs registration in the connected device management list 120. The process ends.

  Next, a processing procedure of device invalidation processing by the management list change processing unit 140 will be described. FIG. 6 is a flowchart illustrating a processing procedure of device invalidation processing by the management list change processing unit 140. As shown in the figure, when the serial number of the FC network device to be invalidated is designated by the user (step S201), the management list change processing unit 140 designates the FC network device corresponding to the designated serial number. The device identification information is acquired from the name service information held by the FC switch 100 (step S202).

  Here, if the device identification information of the FC network device does not exist in the name service information (step S203, Yes), the management list change processing unit 140 connects the connected device stored in the connected device management list 120. A null value is set to the mapped number for management information whose serial number matches the serial number designated by the user. As a result, the FC network device corresponding to the serial number designated by the user is invalidated (step S204).

  On the other hand, when the information on the FC network device exists in the name service information (No in step S203), the management list change processing unit 140 notifies the user that the FC network device cannot be invalidated. (Step S205).

  Next, a processing procedure for mapping change processing by the management list change processing unit 140 will be described. FIG. 7 is a flowchart showing a processing procedure of mapping change processing by the management list change processing unit 140. As shown in the figure, when the serial number of the source FC network device to be mapped is designated by the user (step S301), the management list change processing unit 140 changes the destination suitable for the FC network device. The device identification information of the FC network device is extracted from the connected device management list 120 and notified to the user (step S302).

  When the user designates the FC network device to be changed from the notified device identification information (step S303), the management list change processing unit 140 determines whether or not the FC network device can be mapped. If the mapping can be changed (step S304, Yes), the mapped number of the source FC network device is changed to the serial number of the destination FC network device (step S305).

  On the other hand, when the mapping change is not possible (No at Step S304), the management list change processing unit 140 notifies the user that the mapping change is impossible (Step S306).

  Next, the processing procedure of the WWN conversion processing unit 150 will be described. FIG. 8 is a flowchart showing the processing procedure of the WWN conversion processing unit 150. As shown in the figure, when the FC switch 100 transmits / receives an FC frame (step S401, Yes), the WWN conversion processing unit 150 determines whether WWN (WWNN and WWPN) is set in the transmitted / received FC frame. Is confirmed (step S402, Yes), the WWN conversion process is performed on the FC frame (step S403).

  Next, the processing procedure of the WWN conversion process shown in FIG. 7 will be described. FIG. 9 is a flowchart showing a processing procedure of the WWN conversion process shown in FIG. As shown in the figure, in this WWN conversion process, the WWN conversion processing unit 150 first determines whether or not the connected device management information that matches the WWN set in the FC frame is registered in the connected device management list 120. Confirm.

  If the connected device management information that matches the WWN is registered (Yes in step S501), the WWN conversion processing unit 150 determines whether the serial number and the mapped number of the connected device management information are the same. If it is the same (No in step S502), the WWN conversion process is terminated.

  On the other hand, when the serial number and the mapped number are not the same (step S502, Yes), the WWN conversion processing unit 150 checks whether or not the mapped number of the connected device management information is a null value. If it is not a value (step S503, Yes), it is confirmed whether or not the serial number data that matches the mapped number of the connected device management information is registered in the connected device management list 120.

  If data having a serial number that matches the mapped number has been registered (step S504, Yes), the WWN conversion processing unit 150 sets the WWN of the data in the FC frame and performs transmission / reception (step S505). ).

  Returning to step S503, if the mapped number is a null value (No in step S503), the WWN conversion processing unit 150 determines that the data of the mapped number that matches the serial number of the connected device management information is connected device. Check whether it is registered in the management list.

  If the data of the mapped number that matches the serial number has been registered (step S506, Yes), the WWN conversion processing unit 150 sets the WWN of the data to the FC frame and performs transmission / reception (step S505). ).

  In step S501, if the connected device management information that matches the WWN set in the FC frame is not registered in the connected device management list 120, or if it matches the mapped number of the connected device management information in step S504. If the serial number data to be registered is not registered in the connected device management list 120, or the mapped number data that matches the serial number of the connected device management information is not registered in the connected device management list in step S506. In this case, the WWN conversion processing unit 150 determines that there is a contradiction in the mapping of the FC network device, and performs predetermined exception processing such as notifying the user that the WWN cannot be converted (step S507). .

  As described above, in this embodiment, the connected device management list 120 stores the connected device management information in which the WWN used in the connection setting is associated with the WWN of the FC network device that is currently connected, When the WWN conversion processing unit 150 receives data from the currently connected FC network device, a connection in which the WWN used in the connection setting is associated with the WWN of the currently connected FC network device When the WWN set in the received data is converted to the WWN used in the connection setting based on the device management list, the data is transmitted to the FC network device currently connected. Based on the management information, the WWN set in the data to be transmitted is changed to the W of the FC network device currently connected. Since the data is transmitted after being converted to N, it is possible to eliminate the need to change the setting of the device identification information required when replacing the FC network device due to a failure or the like. Such labor can be reduced.

  In this embodiment, since WWN (World Wide Name) is used as device identification information for uniquely identifying an FC network device, even when a storage or server is replaced due to a failure or the like in the SAN, the FC switch It is possible to eliminate the need to change the settings of various settings made using WWNN and WWPN, such as the zoning setting set for the server and the target binding setting set for the server, reducing the labor required for the setting change work. can do.

  In the present embodiment, the case of changing the CA connection of the storage 20 has been described. However, the present invention is not limited to this, and is connected to the FC switch 100, such as the HBA of the server 10, for example. The same applies to the case of changing the connection of another device.

  In this embodiment, the case where the present invention is applied to the FC switch has been described. However, the present invention is not limited to this, and can be similarly applied to storage. In this case, the WWN set for each of the CA and the module such as the array controller provided in the storage is converted.

(Appendix 1) A network device connection apparatus that performs connection settings between network devices using device identification information that uniquely identifies network devices,
Connected device management information storage means for storing connected device management information in which the device identification information used in the connection setting is associated with the device identification information of the network device currently connected;
When data is received from the currently connected network device, the device identification information set in the received data is set based on the connected device management information stored by the connected device management information storage means. Data receiving means for converting into device identification information used in
When transmitting data to the currently connected network device, based on the connected device management information stored by the connected device management information storage means, the device identification information set in the transmitted data is Data transmitting means for transmitting the data after converting the device identification information of the connected network device;
A network device connection device comprising:

(Additional remark 2) When the network apparatus was connected, the apparatus further provided with the connection apparatus management information registration means which acquires the apparatus identification information of the connected network apparatus, and registers it in the said connection apparatus management information storage means The network device connection device according to Supplementary Note 1.

(Additional remark 3) Based on the instruction | indication from a user, it further provided the connection apparatus management information change means which changes matching of the apparatus identification information of the connection apparatus management information memorize | stored by the said connection apparatus management information storage means. The network device connection device according to appendix 1 or 2, characterized in that

(Additional remark 4) The said connection apparatus management information change means invalidates the apparatus identification information of the network apparatus removed from the network based on the instruction | indication from a user, The network apparatus connection of Additional remark 3 characterized by the above-mentioned apparatus.

(Additional remark 5) The said connection apparatus management information change means matches the apparatus identification information invalidated with respect to the network apparatus newly connected to the network based on the instruction | indication from the said user, It is characterized by the above-mentioned. The network device connection apparatus according to appendix 4.

(Supplementary Note 6) The connected device management information changing means uses the connected device management information storage means to identify device identification information candidates to be associated with a network device newly connected to the network based on an instruction from the user. 6. The network device connection apparatus according to appendix 5, wherein the network device connection device is extracted from the stored connection device management information and notified to the user.

(Supplementary note 7) The network device connection apparatus according to any one of supplementary notes 1 to 6, wherein WWN (World Wide Name) is used as device identification information for uniquely identifying a network device.

(Supplementary note 8) A network device connection method for performing connection setting between network devices using device identification information for uniquely identifying network devices,
Based on connection device management information in which device identification information used in the connection setting is associated with device identification information of the currently connected network device when data is received from the currently connected network device. A data receiving step of converting the device identification information set in the received data into device identification information used in connection setting;
When transmitting data to the currently connected network device, based on the connected device management information, the device identification information set in the data to be transmitted is changed to the device identification information of the currently connected network device. A data transmission step of transmitting the data after conversion into
A network device connection method comprising:

  As described above, the relay device and the relay method according to the present invention are useful when setting connection between network devices using device identification information that uniquely identifies the network device, and in particular, the network device due to a failure or the like. This is suitable when it is desired to reduce the labor required for the setting change work required for the replacement.

10 server 20 storage 100 FC switch 110 _{1 to} 110 _n FC port 120 connected device management list 130 management list registration processing unit 140 management list change processing unit 150 WWN conversion processing unit

Claims (3)

In the relay device that relays communication between the server and storage,
When a second storage is connected instead of the first storage, device identification information set for each storage, allocation information assigned for each storage, and connection to the relay device for each storage Invalidating the mapped information corresponding to the first storage in the management list that stores the mapped information for acquiring the device identification information used in association with the second storage in the management list Change the mapped information corresponding to the allocation information corresponding to the first storage,
The apparatus identification information set to said first storage, said second storage to give corresponds management list change processing unit,
When the access request for the first storage is received from the server, the second storage associated with the device identification information of the first storage included in the access request with reference to the management list In contrast, a relay apparatus comprising: a communication control unit that transmits the access request. The management list change processing unit
When an abnormality occurs in the first storage and the second storage is connected instead of the first storage, the mapped information corresponding to the first storage in the management list is invalidated, Changing the mapped information corresponding to the second storage in the management list to the allocation information corresponding to the first storage;
Wherein said device identification information set for the first storage, the relay apparatus according to claim 1, characterized in that attached corresponds to the second storage. In the relay method of the relay device that relays communication between the server and the storage,
The relay device is
When a second storage is connected instead of the first storage, device identification information set for each storage, allocation information assigned for each storage, and connection to the relay device for each storage Invalidating the mapped information corresponding to the first storage in the management list that stores the mapped information for acquiring the device identification information used in association with the second storage in the management list Change the mapped information corresponding to the allocation information corresponding to the first storage,
The apparatus identification information set to said first storage, versus応付the second storage,
When the access request for the first storage is received from the server, the second storage associated with the device identification information of the first storage included in the access request with reference to the management list For the relay method, a process of transmitting the access request is executed.

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