JP4394608B2 - Storage system, computer, storage device, access control setting method and program - Google Patents

Description

  The present invention is composed of a storage device and a plurality of computers connected to the storage device via a network. When the storage device is accessed from a computer, the storage device has an access control table and access For storage systems that perform access control on logical disks based on the host bus adapter port world wide name provided by the original computer, especially when the host bus adapter is failed and replaced, the access control table is updated. The present invention relates to an access control setting technique that can be reliably and easily performed.

  Conventionally, a plurality of computers and storage apparatuses are connected via a network, and the storage apparatuses are shared by the plurality of computers (see, for example, Patent Documents 1, 2, and 3).

  In Patent Document 1, an access control table in which a correspondence relationship between a world wide name of each computer and a logical disk permitted to be accessed by the computer is provided on the storage device, and the world wide notified from the computer. A technique for controlling access from a computer to a logical disk based on a name and the access control table is described. As the world wide name notified from the computer to the storage device, the world wide name assigned to the port of the host bus adapter is used.

Patent Documents 2 and 3 relate to a countermeasure technique when a failure occurs in a computer in a storage system in which a plurality of computers are connected to a storage device via a network. Patent Document 2 describes a virtual communication path. If there is a computer with the presence notification being interrupted and the presence notification has been interrupted, the application program that was running on that computer is given priority over the application programs that are operating normally. It describes the technology to be executed on the most popular computer. Patent Document 3 discloses a first channel control unit that receives a data input / output request (file access request) by file designation and a block designation data input / output request (block access request) on the storage device. When the first channel control unit exchanges a heartbeat message with each computer via the LAN and detects a computer in which the heartbeat message has stopped, the second channel control unit On the other hand, a technique for instructing to restrict a block access request from a computer in which the heartbeat message is interrupted is described.
JP 2003-30053 A JP 2002-259355 A JP 2004-362146 A

  According to the conventional technique described in Patent Document 1 described above, a logical disk dedicated to the computer is assigned to each computer connected to the storage apparatus. It is possible to prevent the occurrence of a situation where the computer is destroyed.

  By the way, as described above, the world wide name given to the port of the host bus adapter provided in the computer is used as the world wide name notified from the computer to the storage apparatus. For this reason, when a host bus adapter fails and is replaced with a new host bus adapter, the world wide name in the access control table of the storage device must be updated to the world wide name of the host bus adapter port after replacement. Conventionally, maintenance personnel manually update the access control table. That is, the maintenance personnel manually enter the relevant world wide name in the access control table based on the new world wide name recognized by looking at the label attached to the host bus adapter after the replacement. I was trying to update to a new world wide name. As described above, conventionally, the access control table is manually updated, so that there is a possibility that an update error or forgetting of update may occur and a burden is imposed on maintenance personnel. As described in Patent Documents 2 and 3, various countermeasures have been proposed in the event of a failure in the storage system, but the countermeasures in the event of a failure in the host bus adapter are described. There is nothing to do.

(Object of invention)
Therefore, an object of the present invention is to ensure that the contents of the access control table of the storage device are adapted to the host bus adapter after the failure replacement without burdening maintenance personnel when the host bus adapter is replaced by a failure. It is to be able to update.

The first storage system according to the present invention is:
In a storage system in which multiple computers are connected to a storage device via a network,
Each computer is
A host bus adapter having a port connected to the network;
The other party's world wide name storage unit storing the world wide name assigned to the port of the host bus adapter of another computer;
The world wide name of the port possessed by the host bus adapter is acquired from the host bus adapter that has been fault-replaced in another computer, and is stored in the acquired world wide name and the counterpart world wide name storage unit. Access control setting means for transmitting a setting request including a world wide name to the storage device,
The storage device is
Multiple logical disks, each with a logical disk number,
An access control table in which the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk;
When a setting request is sent from the computer, there is provided setting means for updating a corresponding world wide name in the access control table in accordance with the setting request.

The second storage system according to the present invention is the first storage system,
The access control setting means is
A world wide name acquisition means for acquiring a world wide name of a port of the host bus adapter from a host bus adapter provided in another computer at a predetermined timing;
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name stored in the opponent world wide name storage unit in the computer;
If the comparison means does not match, the setting request including the world wide name acquired by the world wide name acquisition means and the world wide name stored in the opponent world wide name storage unit is sent to the storage device. And a setting request means for transmitting.

A third storage system according to the present invention is the second storage system,
The predetermined timing is when the own computer is started or when a maintenance command is input.

The fourth storage system according to the present invention is the second storage system,
Each of the computers includes an update switch operated by maintenance personnel,
When the update switch is operated, the world wide name obtaining unit has a configuration for obtaining a world wide name of a port included in the host bus adapter from a host bus adapter provided in another computer. To do.

The fifth storage system according to the present invention is:
In a storage system in which multiple computers are connected to a storage device via a network,
Each computer is
A host bus adapter having a port connected to the network;
A world wide name acquisition means for acquiring a world wide name of a port possessed by the host bus adapter from a host bus adapter provided in another computer at regular intervals;
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name acquired last time;
If the comparison means does not match, the world wide name acquisition means comprises a setting request means for sending a setting request including the world wide name acquired this time and the world wide name acquired last time to the storage device,
The storage device is
Multiple logical disks, each with a logical disk number,
An access control table in which the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk;
When a setting request is sent from the computer, there is provided setting means for updating a corresponding world wide name in the access control table in accordance with the setting request.

A first computer according to the present invention includes:
A computer connected to a storage device via a network,
A host bus adapter having a port connected to the network;
A partner world wide name storage unit storing a world wide name assigned to a port of a host bus adapter of another computer connected to the storage device via the network;
The world wide name of the port possessed by the host bus adapter is acquired from the host bus adapter that has been fault-replaced in another computer, and is stored in the acquired world wide name and the counterpart world wide name storage unit. Access control setting means for transmitting a setting request including a world wide name to the storage device.

A second computer according to the present invention is the first computer,
The access control setting means is
A world wide name acquisition means for acquiring a world wide name of a port of the host bus adapter from a host bus adapter provided in another computer at a predetermined timing;
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name stored in the opponent world wide name storage unit in the computer;
If the comparison means does not match, the setting request including the world wide name acquired by the world wide name acquisition means and the world wide name stored in the opponent world wide name storage unit is sent to the storage device. And a setting request means for transmitting.

A third computer according to the present invention is the second computer,
The predetermined timing is when the own computer is started or when a maintenance command is input.

A fourth computer according to the present invention is the second computer,
It has an update switch operated by maintenance personnel,
When the update switch is operated, the world wide name obtaining unit has a configuration for obtaining a world wide name of a port included in the host bus adapter from a host bus adapter provided in another computer. To do.

A fifth computer according to the present invention includes:
A computer connected to a storage device via a network,
A host bus adapter having a port connected to the network;
A world wide name for acquiring a world wide name of a port of the host bus adapter from a host bus adapter of another computer connected to the storage device via the network at regular intervals. Acquisition means;
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name acquired last time;
In the case where the comparison means does not match, the world wide name acquisition means comprises a setting request means for sending a setting request including the world wide name acquired this time and the world wide name acquired last time to the storage device. Features.

The storage apparatus according to the present invention is
A storage device to which a plurality of computers are connected via a network,
Multiple logical disks, each with a logical disk number,
An access control table in which the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk;
When a setting request including the world wide name assigned to the host bus adapter port before failure replacement and the world wide name assigned to the host bus adapter port after failure replacement is sent from the computer, And setting means for updating a corresponding world wide name in the access control table in accordance with the setting request.

A first access control setting method according to the present invention includes:
An access control setting method in a storage system in which a plurality of computers are connected to a storage device via a network,
The computer is
A world wide name acquisition step of acquiring a world wide name of a port of the host bus adapter from a host bus adapter provided in another computer at a predetermined timing;
A comparison step of comparing the world wide name acquired in the world wide name acquisition step with the world wide name stored in the opponent world wide name storage unit in the own computer;
If there is a comparison mismatch in the comparison step, a setting request including the world wide name acquired in the world wide name acquisition step and the world wide name stored in the opponent world wide name storage unit is sent to the storage device. Execute the setting request step to send,
The storage device is
When a setting request is sent from the computer, the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk. A setting step of updating a corresponding world wide name in the access control table in accordance with the setting request.

A second access control setting method according to the present invention includes:
An access control setting method in a storage system in which a plurality of computers are connected to a storage device via a network,
Each computer is
A world wide name acquisition step of acquiring a world wide name of a port possessed by the host bus adapter from a host bus adapter provided in another computer at regular intervals;
A comparison step in which the world wide name acquisition step compares the world wide name acquired this time with the world wide name acquired last time;
If there is a comparison mismatch in the comparison step, a setting request step for transmitting a setting request including the world wide name acquired this time in the world wide name acquisition step and the world wide name acquired last time to the storage device is executed,
The storage device is
When a setting request is sent from the computer, the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk. A setting step of updating a corresponding world wide name in the access control table in accordance with the setting request.

The first program according to the present invention is:
A host bus adapter having a port connected to the network and a partner storing the world wide name assigned to the port of the host bus adapter of another computer connected to the storage device via the network A computer with a world wide name storage
The world wide name of the port possessed by the host bus adapter is acquired from the host bus adapter that has been fault-replaced in another computer, and is stored in the acquired world wide name and the counterpart world wide name storage unit. It is made to function as an access control setting means for transmitting a setting request including a world wide name to the storage apparatus.

The second program according to the present invention is the first program,
The access control setting means is
A world wide name acquisition means for acquiring a world wide name of a port of the host bus adapter from a host bus adapter provided in another computer at a predetermined timing;
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name stored in the opponent world wide name storage unit in the computer;
If the comparison means does not match, the setting request including the world wide name acquired by the world wide name acquisition means and the world wide name stored in the opponent world wide name storage unit is sent to the storage device. It includes a setting request means for transmitting.

The third program according to the present invention is:
A computer with a host bus adapter having a port connected to the network;
Obtaining a world wide name at a fixed time from the host bus adapter of another computer connected to the storage device via the network. means,
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name acquired last time;
When the comparison means does not match, the world wide name acquisition means functions as a setting request means for transmitting a setting request including the world wide name acquired this time and the world wide name acquired last time to the storage device. And

[Action]
The access control setting means in each computer acquires the world wide name of the port possessed by the host bus adapter from the host bus adapter that has been faulty replaced in another computer, and acquires the acquired world wide name and the partner world wide name. A setting request including the world wide name (world wide name before failure replacement) stored in the name storage unit is transmitted to the storage device.

  More specifically, the world wide name acquisition unit of each computer constituting the storage system obtains the world wide name of the port possessed by the host bus adapter from the host bus adapter provided in another computer at a predetermined timing. The obtaining means and the comparing means compare the world wide name obtained by the world wide name obtaining means with the world wide name stored in the opponent world wide name storage unit in the own computer. The other party's world wide name storage unit stores the world wide name assigned to the port of the host bus adapter of another computer acquired in the normal state. If there is a comparison mismatch, the setting request means sends a setting request including the world wide name acquired by the world wide name acquisition means and the world wide name stored in the opponent world wide name storage unit to the storage device. Send.

  When a setting request is sent from the computer, the setting means in the storage device updates the corresponding world wide name in the access control table according to the setting request.

  According to the present invention, when a host bus adapter is replaced with a fault, the contents of the access control table of the storage device are reliably updated to the one corresponding to the host bus adapter after the replacement without causing a burden on maintenance personnel. be able to. The reason is that each computer constituting the storage system obtains the world wide name of the port possessed by the host bus adapter from the host bus adapter that has been faulty replaced by another computer. This is because a setting request including the world wide name stored in the world wide name storage unit is transmitted to the storage device.

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

[Configuration of First Embodiment]
FIG. 1 is a block diagram showing a configuration example of a storage system according to a first embodiment of the present invention. Three computers 1-1 to 1-3 serving as NAS (Network Attatched Storage) heads and a storage device 2. In this embodiment, the number of computers constituting the NAS head is three. However, the number of computers is not limited to this as long as there are a plurality of computers. In the present embodiment, it is assumed that communication between the computers 1-1 to 1-3 and the storage apparatus 2 is performed according to the fiber channel protocol.

  Each of the computers 1-1 to 1-3 includes a counterpart world wide name (WWn) storage unit 11-1 to 11-3, access control setting means 12-1 to 12-3, and a host bus adapter (HBA) 13. -1 to 13-3, control means 14-1 to 14-3, and consoles 15-1 to 15-3.

  The HBAs 13-1 to 13-3 have ports 131-1 to 131-3, respectively, and WWn “00, 01, 10” is assigned to each of the ports 131-1 to 131-3. The HBAs 13-1 to 13-3 are provided with non-volatile memories in which the WWn of the ports 131-1 to 131-3 are stored, although not shown. In the present embodiment, the number of ports of each of the HBAs 13-1 to 13-3 is “1”, but a plurality of ports may be provided.

  The WWn storage units 11-1 to 11-3 of the computers 1-1 to 1-3 store WWn of ports of other computers. In the present embodiment, as shown in FIG. 2, the WWn “00, 01” of the ports 131-2, 131-3, and 131-1 are stored in the counterpart WWn storage units 11-1, 11-2, and 11-3, respectively. , 10 "is stored.

  The access control setting units 12-1 to 12-3 include WWn acquisition units 121-1 to 121-3, comparison units 122-1 to 122-3, and setting request units 123-1 to 123-3, respectively. ing.

  The WWn acquisition means 121-1 to 121-3 acquire WWn in another computer at a predetermined timing (in this embodiment, when a maintenance command is input from the consoles 15-1 to 15-3). A function of transmitting a WWn acquisition request to the means, a function of passing the WWn returned from the WWn acquisition means in another computer in response to the WWn acquisition request, and other functions When a WWn acquisition request is sent from the WWn acquisition means in the computer, the ports 131-1 to 131- are connected from the non-volatile memory in the HBAs 13-1 to 13-3 included in the own computer 1-1 to 1-3. 3 has a function of reading out WWn assigned to 3 and returning it to the request source. In the present embodiment, each WWn acquisition unit 121-1, 121-2, 121-3 transmits a WWn acquisition request to WWn acquisition unit 121-2, 121-3, 121-1, respectively. And

  The comparison means 122-1 to 122-3 compares the WWn passed from the WWn acquisition means 121-1 to 121-3 with the WWn stored in the counterpart WWn storage unit 11-1 to 11-3, When the two do not match, it has a function of passing the two WWn to be compared to the setting request means 123-1 to 123-3.

  The setting request means 123-1 to 123-3 has a function of transmitting a setting request including the two WWn passed from the comparison means 122-1 to 122-3 to the storage apparatus 2, or a setting request from the storage apparatus 2. On the other hand, when a message indicating normal termination is sent, the WWn stored in the partner WWn storage unit 11-1 to 11-3 is replaced with a new WWn (WWn acquisition means 121-1 to 121-3 is another computer). To WWn) acquired from (1).

  The control units 14-1 to 14-3 transmit a login request including the WWn assigned to the ports 131-1 to 131-3 to the storage 2 and establish a connection with the storage apparatus 2. And a function of transmitting a write request and a read request to the storage apparatus 2 using the established connection. Note that the write request and the read request include a computer-side logical disk number (a logical disk number that looks like a computer).

  The access control setting means 12-1 to 12-3 and the control means 14-1 to 14-3 in each of the computers 1-1 to 1-3 can be realized by a program, and are realized by a program. For example, as follows. A disk device, a semiconductor memory, and other recording media storing programs for causing a computer to function as access control setting means 12-1 to 12-3 and control means 14-1 to 14-3 are prepared. Let me read. The computer realizes access control setting means 12-1 to 12-3 and control means 14-1 to 14-3 on its own computer by controlling its own operation according to the read program.

  The storage device 2 includes a setting unit 21, an access control table 22, a control unit 23, a plurality of logical disks 24-0 to 24-15, and ports 25-1 to 25-3.

  The logical disks 24-0 to 24-15 are logical access units managed by the storage apparatus 2, and in this embodiment, the storage apparatus 2 logically stores the logical disks 24-0 to 24-15. The disk numbers LD0 to LD15 are used for management.

  In the access control table 22, logical disk numbers of logical disks corresponding to combinations of WWn and computer-side logical disk numbers are registered.

  FIG. 3 shows an example of the contents of the access control table 22. In this example, the computer 1-1 having the port of WWn “00” can access the logical disks 24-0 to 24-6 of the logical disk numbers LD 0 to LD 6 using the computer side logical disk numbers LUN 0 to LUN 6. The computer 1-2 having the port of WWn “01” can access the logical disks 24-7 to 24-11 of the logical disk numbers LD7 to LD11 using the computer side logical disk numbers LUN0 to LUN4, and WWn “10”. It is shown that the computer 1-3 having the above ports can access the logical disks 24-12 to 24-15 of the logical disk numbers LD12 to LD15 using the computer-side logical disk numbers LUN0 to LUN3.

  When a login request is sent from each of the computers 1-1 to 1-3, the control means 23 establishes a connection with the requesting computer, and reads from each of the computers 1-1 to 1-3. When a request or a write request is sent, the access control table 22 is referred to specify an access destination logical disk, and processing according to the read request or write request is performed on the specified logical disk.

  The storage device 2 can be realized by a computer, and when realized by a computer, for example, is as follows. A disk, a semiconductor memory, and other recording media recording programs for causing the computer to function as the setting means 21 and the control means 23 are prepared, and the computer reads the programs. The computer realizes the setting means 21 and the control means 23 on its own computer by controlling its own operation according to the read program.

[Operation of First Embodiment]
Next, the operation of the present embodiment will be described.

  First, the operation at the time of login will be described using the computer 1-1 as an example. When logging in to the storage apparatus 2, the control unit 14-1 in the computer 1-1 sends a login request including WWn “00” assigned to the port 131-1 of the HBA 13-1 to the storage apparatus 2. When receiving the login request, the control means 23 in the storage apparatus 2 establishes a connection with the requesting computer 1-1. At that time, the control means 23 holds the connection ID for specifying the established connection in association with WWn “00” included in the login request.

  Next, the operation at the time of reading will be described by taking the computer 1-1 as an example. The control means 14-1 in the computer 1-1 establishes a connection with the storage apparatus 2 as described above, and then reads data from a predetermined position of the logical disk 24-0, for example, when the computer side logic is read. A read request including the disk number LUN0 and the position information indicating the predetermined position is transmitted to the storage apparatus 2 via the connection. When the control unit 23 in the storage apparatus 2 receives the read request, the WWn of the used port is “00” based on the pair of the WWn “00” and the connection ID held at the time of login. Recognize that. Next, the control means 23 acquires from the access control table 22 the logical disk number LD0 registered in association with the combination of WWn “00” and the computer-side logical disk number LUN0 being requested to be read. Thereafter, the control means 23 reads data from the position indicated by the position information in the read request on the logical disk 24-0 specified by the logical disk number LD0, and transmits the read data to the requesting computer 1-1. To do.

  Next, taking the computer 1-1 as an example, the operation during writing will be described. The control means 14-1 in the computer 1-1 establishes a connection with the storage device 2 as described above, and then writes data to a predetermined position of the logical disk 24-6, for example, A write request including the disk number LUN6, the position information indicating the predetermined position, and the write data is transmitted to the storage apparatus 2 via the connection. When the control unit 23 in the storage apparatus 2 receives the write request, the WWn of the used port is “00” based on the pair of the WWn “00” and the connection ID held at the time of login. Recognize that. Next, the control means 23 acquires the logical disk number LD6 registered in association with the combination of WWn “00” and the computer-side logical disk number LUN6 that is in the write request from the access control table 22. Thereafter, the control means 23 writes the write data at the position indicated by the position information in the write request on the logical disk 24-6 specified by the logical disk number LD6.

  Next, the operation when a maintenance command is input will be described using the computer 1-2 as an example. It is assumed that WWn “10” is stored in the partner WWn storage unit 11-2 in the computer 1-2, and the access control table 22 in the storage device 2 has the contents shown in FIG.

  When a maintenance command is input from the console 15-2, the WWn acquisition unit 121-2 in the computer 1-2 transmits a WWn acquisition request to the counterpart computer 1-3 as shown in the flowchart of FIG. , WWn return waiting state (steps S41, S42).

  When the WWn acquisition unit 121-3 in the partner computer 1-3 receives the WWn acquisition request, the non-volatile memory (not shown) in the HBA 13-3 sends the port 131-3 to the port 131-3 as shown in the flowchart of FIG. The assigned WWn “10” is read, and the read WWn “10” is returned to the request source WWn acquisition unit 121-2 (steps S51 and S52).

  When WWn “10” is returned, the WWn acquisition unit 121-2 in the WWn return waiting state passes it to the comparison unit 122-2 (step S42 in FIG. 4).

  Thereby, the comparison unit 122-2 compares the WWn “10” passed from the WWn acquisition unit 121-2 with the WWn “10” stored in the partner WWn storage unit 11-2 (step S43). . In this example, since both are equal (step S44 is YES), the comparison means 122-2 displays a message indicating that the HBA is not exchanged on the display unit of the console 15-2 (step S50). ), The process is terminated.

  Thereafter, it is assumed that a failure occurs in the HBA 13-3 of the computer 1-3, and the HBA 13-3 is replaced with a new HBA 13-3new as shown in FIG. It is assumed that WWn “10new” is assigned to the port 131-3new provided in the new HBA 13-3new.

  Thereafter, when the maintenance person inputs a maintenance command from the console 15-2, the WWn acquisition unit 121-2 in the computer 1-2 transmits a WWn acquisition request to the computer 1-3 (step S41 in FIG. 4). The WWn obtaining unit 121-3 in the computer 1-3 reads the WWn “10new” assigned to the port 131-3new from the HBA 13-3new after the failure replacement, and returns it to the requesting WWn obtaining unit 121-2. (Steps S51 and S52 in FIG. 5). When WWn “10new” is returned, the WWn acquisition unit 121-2 passes it to the comparison unit 122-2.

  Thereby, the comparison unit 122-2 compares the WWn “10new” passed from the WWn acquisition unit 121-2 with the WWn “10” stored in the partner WWn storage unit 11-2 (step in FIG. 4). S43). In this example, since comparison does not match (NO in step S44), the comparison unit 122-2 passes the two WWn “10” and “10new” to be compared to the setting request unit 123-2 (step S45). ).

  When WWn “10” and “10new” are passed, the setting request unit 123-2 establishes a connection with the storage apparatus 2 using the control unit 14-2, and then the two WWn “10”. , “10new” is sent to the storage device 2 to enter a message waiting state (steps S46 and S47). If the connection cannot be established, a message to that effect is displayed on the display unit of the console 15-2, and the process ends.

  When the setting unit 21 in the storage apparatus 2 receives the setting request including WWn “10” and “10new”, the corresponding setting WWn “10” in the access control table 22 is newly set as shown in the flowchart of FIG. An update process for updating to WWn “10new” is performed (step S71). If the update process is normally completed (YES in step S72), the setting unit 21 transmits a message “WWn re-setting complete” indicating normal termination to the request source setting request unit 123-2 (step S72). S73) If the process has not ended normally (NO in step S72), a message “WWn cannot be set” indicating an abnormal end is transmitted (step S74). FIG. 8 shows the contents of the access control table 22 after the update process is normally completed. By updating the contents of the access control table 22 as shown in FIG. 8, it becomes possible to access the logical disks 24-12 to 24-15 in the storage apparatus 2 from the computer 1-3.

  When the setting request unit 123-2 in the message waiting state receives a message indicating abnormal termination (NO in step S48 of FIG. 4), the message is displayed on the display unit of the console 15-2 (step S50). ), The process is terminated. When a message indicating abnormal termination is displayed, for example, a maintenance person inputs a maintenance command from the console 15-2 again.

  On the other hand, when a message indicating normal termination is received (YES in step S48), the WWn “10” stored in the partner WWn storage unit 11-2 is updated to a new WWn “10new”. After displaying a message indicating normal termination on the console 15-2 (steps S49 and S50), the processing is terminated.

  In the above-described embodiment, the WWn acquisition unit 121-1 to 121-3 is activated by inputting a maintenance command from the consoles 15-1 to 15-3. The WWn acquisition units 121-1 to 121-3 may be activated when 1-3 is activated. In addition, an update switch operated by maintenance personnel may be provided in each of the computers 1-1 to 1-3, and the WWn acquisition units 121-1 to 121-3 may be activated when the update switch is operated.

[Effect of the first embodiment]
According to the present embodiment, when an HBA is replaced with a fault, the contents of the access control table of the storage apparatus can be reliably updated to the one corresponding to the HBA after the replacement without causing a burden on maintenance personnel. it can. The reason is that each of the computers 1-1 to 1-3 constituting the storage system obtains the world wide name of the port possessed by the HBA from the HBA that has been faulty-replaced in the other computer. Provided with access control means 12-1 to 12-3 for transmitting a setting request including the name and the world wide name stored in the opponent world wide name storage units 11-1 to 11-3 to the storage device, 2 is provided with setting means 21 for updating the corresponding world wide name in the access control table 22 in accordance with the setting request sent from the computer.

[Second Embodiment]
Next, a second embodiment of the storage system according to the present invention will be described. In this embodiment, it is automatically determined at every predetermined time whether or not the HBA of another computer has been faulty replaced. If the faulty replacement has been performed, the access control table is updated. Features.

[Configuration of Second Embodiment]
FIG. 9 is a block diagram showing a configuration example of the second embodiment of the storage system according to the present invention. The same reference numerals as those in FIG. 1 denote the same parts. The difference between the present embodiment and the first embodiment shown in FIG. 1 is that computers 1-1a to 1-3a are provided instead of the computers 1-1 to 1-3. .

  The computers 1-1a to 1-3a do not include the counterpart WWn storage units 11-1 to 11-3, and access control setting means 12-1a to 12-12 instead of the access control setting means 12-1 to 12-3. -3a and the timers 16-1 to 16-3 are different from the computers 1-1 to 1-3 shown in FIG. The access control setting means 12-1a to 12-3a includes WWn acquisition means 121-1a to 121-3a instead of the WWn acquisition means 121-1 to 121-3, and the comparison means 122-1. Are different from the access control setting means 12-1 to 12-3 in that they include comparison means 122-1a to 122-3a instead of to 122-3.

  The timers 16-1 to 16-3 have a function of starting the WWn acquisition units 121-1a to 121-3a at regular intervals.

  The WWn acquisition units 121-1a to 121-3a are different from the WWn acquisition units 121-1 to 121-3 in that they are started from the timers 16-1 to 16-3.

  The comparison means 122-1a to 122-3a compares the current WWn passed from the WWn acquisition means 121-1a to 122-3a with the last passed WWn, and if the comparison does not match, the above two WWn are requested to be set. It has a function of passing to the means 123-1 to 123-3.

  The access control means 12-1a to 12-3a and the control means 14-1 to 14-3 in each of the computers 1-1a to 1-3a can be realized by a program. And do the following: A disk device, a semiconductor memory, and other recording media recording a program for causing a computer to function as access control setting means 12-1a to 12-3a and control means 14-1 to 14-3 are prepared. Let me read. The computer realizes access control setting means 12-1a to 12-3a and control means 14-1 to 14-3 on its own computer by controlling its own operation according to the read program.

[Operation of Second Embodiment]
Next, the operation of the present embodiment will be described. Since operations at login, read, and write are the same as in the first embodiment, the WWn acquisition units 121-1a to 121-3a are activated by the timers 16-1 to 16-3. Only the operation when performed will be described.

  The timer 16-1 in the computer 1-1a activates the WWn acquisition unit 121-1a every time a predetermined time elapses. Note that the timers 16-2 and 16-3 in the other computers 1-2a and 1-3a also activate the WWn acquisition means 121-2a and 121-3a at regular intervals, but the operation contents are the same for each computer 1-1a. ˜1-3a are the same, and here, the operation will be described using the computer 1-1a as an example.

  When activated, the WWn acquisition unit 121-1a transmits a WWn acquisition request to the counterpart computer 1-2a and enters a WWn waiting state (steps S101 and S102).

  When receiving the WWn acquisition request, the WWn acquisition unit 121-2a in the computer 1-2a reads WWn “01” from the HBA 13-2 and receives the WWn “01” from the request source as shown in the flowchart of FIG. It is returned to the WWn acquisition means 121-1a (steps S51 and S52).

  When the WWn “01” is returned, the request source WWn acquisition unit 121-1a in the WWn return waiting state passes it to the comparison unit 122-1a (step S102).

  When the WWn “01” is passed from the WWn acquisition unit 121-1a, the comparison unit 122-1a determines whether or not it is the first WWn passed from the WWn acquisition unit 121-1a (step S103). .

  If it is determined that it is the first WWn (YES in step S103), the WWn “01” delivered this time is held inside, and the first WWn is held on the display unit of the console 15-1. Is displayed (steps S104 and S110), the process is terminated. On the other hand, if it is determined that it is not the first WWn (NO in step S103), the WWn “01” passed from the current WWn acquisition unit 121-1a and the previous WWn acquisition unit 121- held therein. The WWn passed from 1a is compared (step S105).

  If they are equal (YES in step S106), a message indicating that WWn is equal is displayed on the display unit of the console 15-1 (step S110), and the process is terminated. On the other hand, if WWn does not match (NO in step S106), it is considered that the HBA has been failed and replaced, and the previous WWn and the current WWn are passed to the setting request unit 123-1 (step S107). .

  Thereby, the setting request unit 123-1 establishes a connection with the storage apparatus 2 using the control unit 14-1, and then sends a setting request including the current WWn and the previous WWn to the storage apparatus 2. The message is transmitted and a message is waited (steps S108 and S109).

  When the setting request is sent from the setting request unit 123-1a, the setting unit 21 in the storage device 2 performs the update process of WWn in the access control table 22 according to the setting request as shown in the flowchart of FIG. (Step S71), a message indicating whether or not the update process has been normally completed is transmitted to the setting request means 123-1 of the request source (Steps S72 to S74).

  When the message is returned, the setting request unit 123-1 in the message waiting state displays it on the display unit of the console 15-1 (step S110 in FIG. 10), and ends the process.

[Effects of Second Embodiment]
According to the present embodiment, in addition to the effects obtained in the first embodiment, the contents of the access control table are automatically adapted to the HBA after failure replacement without requiring maintenance personnel to input a maintenance command. The effect that it can be updated to can be obtained. The reason is that each of the computers 1-1a to 1-3a acquires the WWn of the port possessed by the HBA from the HBA of the other computer at regular intervals. 121-3a, comparison means 122-1a to 122-3a and comparison means 122-1a to 122-3a for comparing WWn acquired this time by WWn acquisition means 121-1a to 121-3a and WWn acquired last time When the comparison does not match, the WWn acquisition units 121-1a to 121-3a include setting request units 123-1 to 123-3 that transmit a setting request including the WWn acquired this time and the WWn acquired last time to the storage device 2. Because.

1 is a block diagram showing a configuration example of a first embodiment of a storage system according to the present invention. It is a figure which shows the relationship between WWn stored in each other party WWn memory | storage part 11-1 to 11-3, and WWn provided to the ports 131-1 to 131-3 of each HBA13-1 to 13-3. is there. 6 is a diagram illustrating an example of contents of an access control table 22. FIG. It is a flowchart which shows the process example of the access control setting means 12-1 to 12-3 when a maintenance command is input. It is a flowchart which shows the process example of the WWn acquisition means 121-1-121-3 when a WWn acquisition request is received. It is a figure for demonstrating operation | movement when HBA of the computer 1-3 is replaced | exchanged. It is a flowchart which shows the process example of the setting means 21 when a setting request | requirement is received. It is a figure which shows the example of the content of the access control table 22 after an update. It is a block diagram which shows the structural example of 2nd Embodiment of the storage system concerning this invention. It is a flowchart which shows the process example of the access control setting means 12-1a-12-3a when it starts from the timer 16-1 to 16-3.

Explanation of symbols

1-1 to 1-3, 1-1a to 1-3a... Computers 11-1 to 11-3... Partner WWn storage units 12-1 to 12-3, 12-1a to 12-3a. -1 to 121-3, 121-1a to 121-3a ... WWn acquisition means 122-1 to 122-3, 122-1a to 122-3a ... comparison means 123-1 to 123-3 ... setting request means 13-1 ~ 13-3, 13-3new ... HBA (Host Bus Adapter)
131-1 to 131-3, 131-3 new... Ports 14-1 to 14-3 ... control means 15-1 to 15-3 ... console 16-1 to 16-3 ... timer 2 ... storage device 21 ... setting means 22 ... Access control table 23 ... Control means 24-0-24-15 ... logical disk

Claims (16)

In a storage system in which multiple computers are connected to a storage device via a network,
Each computer is
A host bus adapter having a port connected to the network;
A one other computer associated with the own computer, World Wide Name other party Worldwide the other computer host bus adapters that are not associated with the own computer other than the computer is assigned to the port having The other party's world wide name storage part stored as a name,
Obtain the world wide name of the port possessed by the host bus adapter as the fault exchange world wide name from the host bus adapter that has been fault exchanged at the counterpart computer, and obtain the fault exchange world wide name and the counterpart world wide name obtained. An access control setting means for transmitting a setting request including the partner world wide name stored in the storage unit to the storage device;
The storage device is
Multiple logical disks, each with a logical disk number,
An access control table in which the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk;
When a setting request is sent from the computer, a world wide name that matches the opponent world wide name included in the setting request among the world wide names registered in the access control table is set. A storage system comprising setting means for updating to a fault replacement world wide name included in a request . The storage system according to claim 1, wherein
The access control setting means is
A world wide name acquisition means for acquiring a world wide name of a port of the host bus adapter from a host bus adapter provided in the partner computer at a predetermined timing;
Comparing means for comparing the world wide name to the world wide name acquisition means has acquired, and a partner world wide name stored in the partner world wide name storage unit in its own computer,
If a comparison mismatch at the comparison means and including World Wide Name the worldwide name acquisition means has acquired as a failure exchange worldwide name, the counterpart Worldwide Natick beam stored in the counterpart World Wide Name storage unit A storage system comprising: setting request means for transmitting a setting request including: to the storage apparatus. The storage system according to claim 2, wherein
The storage system according to claim 1, wherein the predetermined timing is when the own computer is activated or when a maintenance command is input. The storage system according to claim 2, wherein
Each of the computers includes an update switch operated by maintenance personnel,
When the update switch is operated, the world wide name acquisition unit has a configuration for acquiring a world wide name of a port included in the host bus adapter from a host bus adapter provided in a partner computer. Storage system. In a storage system in which multiple computers are connected to a storage device via a network,
Each computer is
A host bus adapter having a port connected to the network;
At certain intervals, the host bus adapter has one host computer associated with the host computer, and the host bus adapter provided in the partner computer not associated with the computer other than the host computer has A world wide name obtaining means for obtaining a world wide name of a port,
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name acquired last time;
If the comparison means does not match, the world wide name acquisition means comprises a setting request means for sending a setting request including the world wide name acquired this time and the world wide name acquired last time to the storage device,
The storage device is
Multiple logical disks, each with a logical disk number,
An access control table in which the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk;
When a setting request is sent from the computer, a world wide name that matches the previously acquired world wide name included in the setting request among the world wide names registered in the access control table, A storage system comprising setting means for updating to the world wide name acquired this time included in the setting request . A computer that is a component of a storage system in which a plurality of computers are connected to a storage device via a network,
A host bus adapter having a port connected to the network;
A one other computer associated with the own computer, World Wide Name other party Worldwide the other computer host bus adapters that are not associated with the own computer other than the computer is assigned to the port having The other party's world wide name storage part stored as a name,
Obtain the world wide name of the port possessed by the host bus adapter as the fault exchange world wide name from the host bus adapter that has been fault exchanged at the counterpart computer, and obtain the fault exchange world wide name and the counterpart world wide name obtained. A computer comprising: an access control setting means for transmitting a setting request including a partner world wide name stored in a storage unit to the storage device. The computer according to claim 6.
The access control setting means is
A world wide name acquisition means for acquiring a world wide name of a port of the host bus adapter from a host bus adapter provided in the partner computer at a predetermined timing;
Comparing means for comparing the world wide name to the world wide name acquisition means has acquired, and a partner world wide name stored in the partner world wide name storage unit in its own computer,
If a comparison mismatch at the comparison means and including World Wide Name the worldwide name acquisition means has acquired as a failure exchange worldwide name, the counterpart Worldwide Natick beam stored in the counterpart World Wide Name storage unit And a setting request means for transmitting a setting request including the request to the storage apparatus. The computer according to claim 7.
The computer according to claim 1, wherein the predetermined timing is when the computer is started or when a maintenance command is input. The computer according to claim 7.
It has an update switch operated by maintenance personnel,
When the update switch is operated, the world wide name acquisition unit has a configuration for acquiring a world wide name of a port included in the host bus adapter from a host bus adapter provided in a partner computer. Computer. A computer that is a component of a storage system in which a plurality of computers are connected to a storage device via a network,
A host bus adapter having a port connected to the network;
At certain intervals, the host bus adapter has one host computer associated with the host computer, and the host bus adapter provided in the partner computer not associated with the computer other than the host computer has A world wide name obtaining means for obtaining a world wide name of a port,
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name acquired last time;
In the case where the comparison means does not match, the world wide name acquisition means comprises a setting request means for sending a setting request including the world wide name acquired this time and the world wide name acquired last time to the storage device. A featured computer. A storage apparatus that is a component of a storage system in which a plurality of computers are connected to the storage apparatus via a network,
Multiple logical disks, each with a logical disk number,
An access control table in which the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk;
When a setting request including the world wide name assigned to the host bus adapter port before failure replacement and the world wide name assigned to the host bus adapter port after failure replacement is sent from the computer, Of the world wide names registered in the access control table, a world wide name that matches the world wide name before the fault replacement included in the setting request is displayed after the fault replacement included in the setting request. And a setting means for updating the world wide name. An access control setting method in a storage system in which a plurality of computers are connected to a storage device via a network,
The computer is
From a host bus adapter provided in a partner computer that is associated with the own computer and not associated with a computer other than the own computer at a predetermined timing, the port of the host bus adapter A world wide name acquisition step for acquiring a world wide name;
A comparing step of comparing the world wide name acquired in the worldwide name obtaining step, and said other computer partner World Wide Name stored in the partner world wide name storage unit in its own computer,
If it was compared discrepancy the comparison step, the including world wide name acquired by the world wide name obtaining step as a fault exchange worldwide name, the counterpart Worldwide Natick beam stored in the counterpart World Wide Name storage unit the setting request including the running and setting request transmitting to the storage device,
The storage device is
When a setting request is sent from the computer, the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk. Performing a setting step of updating the world wide name that matches the opponent world wide name included in the setting request to the fault replacement world wide name included in the setting request in the access control table A characteristic access control setting method. An access control setting method in a storage system in which a plurality of computers are connected to a storage device via a network,
Each computer is
At certain intervals, the host bus adapter has one host computer associated with the host computer, and the host bus adapter provided in the partner computer not associated with the computer other than the host computer has The world wide name acquisition step of acquiring the world wide name of the port being
A comparison step in which the world wide name acquisition step compares the world wide name acquired this time with the world wide name acquired last time;
If there is a comparison mismatch in the comparison step, a setting request step for transmitting a setting request including the world wide name acquired this time in the world wide name acquisition step and the world wide name acquired last time to the storage device is executed,
The storage device is
When a setting request is sent from the computer, the logical disk number of the corresponding logical disk is registered in association with the combination of the computer-side logical disk number and the world wide name used when the computer accesses the logical disk. In the access control table , the setting step is executed to update the world wide name that matches the previously acquired world wide name included in the setting request to the world wide name acquired this time included in the setting request. An access control setting method characterized by: A computer which is a component of a storage system in which a plurality of computers are connected to a storage apparatus via a network, and a host bus adapter having a port connected to the network and one partner associated with the own computer The partner world wide name memory in which the world wide name assigned to the port of the host bus adapter of the other computer not associated with the computer other than the own computer is stored as the partner world wide name A computer equipped with
Obtain the world wide name of the port possessed by the host bus adapter as the fault exchange world wide name from the host bus adapter that has been fault exchanged at the counterpart computer, and obtain the fault exchange world wide name and the counterpart world wide name obtained. A program for functioning as access control setting means for transmitting a setting request including a partner world wide name stored in a storage unit to the storage device. The program according to claim 14, wherein
The access control setting means is
A world wide name acquisition means for acquiring a world wide name of a port of the host bus adapter from a host bus adapter provided in the partner computer at a predetermined timing;
Comparing means for comparing the world wide name to the world wide name acquisition means has acquired, and a partner world wide name stored in the partner world wide name storage unit in its own computer,
If a comparison mismatch at the comparison means and including World Wide Name the worldwide name acquisition means has acquired as a failure exchange worldwide name, the counterpart Worldwide Natick beam stored in the counterpart World Wide Name storage unit a program characterized by comprising a setting request means for transmitting to the storage apparatus setting request including the. A computer that is a component of a storage system in which a plurality of computers are connected to a storage device via a network, the computer including a host bus adapter having a port connected to the network.
At certain intervals, the host bus adapter has one host computer associated with the host computer, and the host bus adapter provided in the partner computer not associated with the computer other than the host computer has A world wide name obtaining means for obtaining a world wide name of a port,
A comparison means for comparing the world wide name acquired by the world wide name acquisition means with the world wide name acquired last time;
A program for causing the world wide name acquisition means to function as a setting request means for sending a setting request including the world wide name acquired this time and the world wide name acquired last time to the storage device when the comparison means does not match. .

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