JP2005208906A - Controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a controller allowing automatic setting of configuration information in time of a remote copy. <P>SOLUTION: This controller connected to a storage area network by a port has: a its own device port information setting means setting operation mode information about the port used for the remote copy of the own device; a target device setting means setting target device identification information that is the opposite party of the remote copy; an other device information acquisition means acquiring other device identification information from the network; a target device decision means comparing the acquired other device identification information with the target device identification information set by the target device setting means, and deciding whether it is a remote copy target device; a port information acquisition means acquiring port information from the target device when it is decided that it is the target device; and a remote copy connection path determination means determining connection path information between the devices from the acquired port information about the target device and the port information about the own device. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a control device that automatically sets configuration information in remote copy between storage devices in a storage area network.

  Conventionally, as a guarantee of data, it has been supported to duplicate data in a storage apparatus. This method is very effective for a disk failure or a hardware failure in the storage apparatus.

  However, in this method, in the event of a disaster, for example, when the apparatus itself is damaged due to an earthquake or the like, the data is not guaranteed even if the data is duplicated in the apparatus.

  Therefore, as a disaster countermeasure, the equipment itself is duplicated, and the duplicated equipment is operated in various installation forms such as short distances that separate floors, long distances that separate cities such as Tokyo and Osaka. It is coming.

  FIG. 15 shows a conventional configuration diagram.

  Since the storage device is duplicated, data is copied by connecting the control devices of the storage device via a SCSI interface or a Fiber Channel interface.

  In order to perform this data copy, in addition to the normal device settings, settings dedicated to copying, for example, settings such as a transmission destination are required.

For this setting, a dedicated maintenance terminal is attached to the control device of each storage device. The configuration information is stored in one device maintenance terminal, transferred to another maintenance terminal via a network such as a LAN, and the other party's information is set based on the configuration information. If the data cannot be transferred between maintenance terminals, the configuration information is manually input for each device.
As described above, since the remote copy configuration information is manually set for each unit, there is a technique for automating the parameter setting of the storage device, for example, in order to improve the configuration information setting efficiency. (For example, see Patent Document 1)
This sets a condition for setting a storage device as a user policy. Then, device configuration information of the storage device is acquired, a combination of settings that satisfy the policy is determined, and configuration information is automatically set based on the combination.
JP2003-303052

  However, since this method automatically sets the storage device in its own device, connection configuration information with the counterpart device for remote copying cannot be automatically set.

  In addition, when important information such as device information of the other party is manually input, it is necessary to finely set the information of the transmission destination at the transmission source. If even one is wrong, the transmission is impossible, Send data to the wrong place. In particular, the partner device information has a large number of characters to be input, so if one character is wrong, a connection error occurs. In addition, there is a drawback that whether or not the physical wiring is correct is not known unless these settings are made and data is actually copied.

  In view of such a problem, the present invention proposes a storage apparatus that automatically sets configuration information about connection during remote copying.

  The device of the present invention is a local device port information setting means for setting operation mode information of a port used for remote copy of the local device and a remote copy partner in a control device connected by a port to the storage area network. Target device setting means for setting target device identification information, other device information acquisition means for acquiring other device identification information from the network, acquired other device identification information and target device identification information set by target device setting means Device determination means for determining whether or not the device is a remote copy target device, port information acquisition means for acquiring port information from the target device if the target device is determined, and the acquired target device Remote copy connection route determination means for determining connection route information between devices from the port information of the device and the port information of the own device It is formed.

  With this configuration, it is possible to automatically set the connection path between the target device for remote copy and the own device.

  Here, the operation mode indicates whether the use mode of the port is used as a transmission destination, transmission or transmission / reception at the time of remote copy.

  As a result, there is no need to make settings for connection with the connection target device for each device.

  Further, the target device setting means has an update deletion means for updating and deleting the contents.

  With this configuration, it is possible to arbitrarily add or delete a counterpart device that performs remote copy.

  As a result, it is not necessary to set the connection path with the connection target device for each device.

The port information acquisition means uses a SCSI command Inquiry command.

  With this configuration, configuration information can be acquired from the connection target device by using a general-purpose command.

  According to the present invention, since the connection configuration between the remote device to be connected and the own device at the time of remote copy can be automatically set, it is possible to prevent configuration information input errors and to improve the efficiency of setting.

  FIG. 1 shows a configuration diagram of the control device of the embodiment.

  FIG. 2 shows a configuration diagram of the storage system of the embodiment.

  The control device 1 includes a CM (Common Module) 4, a check mechanism 5, a maintenance port 6, and an FRA (Fiber Channel Remote Adapter) 7.

  The CM 4 performs overall control of the control device 1.

  The check mechanism 5 has a function of determining whether the partner device is a remote copy target device.

  The maintenance port 6 is a connection port with the maintenance terminal 3.

  The FRA 7 has a function of creating a SCSI command and is a port connected to the counterpart device.

  The storage device 2 includes a control device 1, a disk device 8 connected to the control device 1, and a maintenance terminal 3. The maintenance terminal 3 can be configured as a separate device from the storage device 2.

Next, an overview of the remote copy setting process is shown. FIG. 2B shows a storage area network.
1) From the maintenance terminal 3 of each device, a remote copy permission mode is set for each control device 1 for the port for performing remote copy.
2) Next, the maintenance terminal 3 instructs the transmission source control device 1 to acquire partner information.
3) Since this request is sent from the maintenance port 6 to the FRA 7 via the CM 4, the FRA 7 searches the network for devices that can be transmitted.
4) When the FRA 7 of the transmission source control device 1 receives the searched information, it passes the searched information to the check mechanism 5. Whether the check mechanism 5 is a remote copy target capable device is determined using a configuration information table set in advance.
5) Upon receiving the check result from the check function, the FRA 7 of the transmission source control device 1 creates an inquiry command, which is one of the SCSI commands, in order to obtain detailed information on the remote copy target device, and sends it to the corresponding device. To issue.

  The data content of the Inquiry command issued at this time is configuration information acquisition data.

Thereby, partner information can be obtained. Further, since the FRA 7 creates the inquiry command, there is no load on the CM 4 and there is no influence even if other operations are performed inside the apparatus.
6) When receiving the inquiry command, the FRA 7 of the transmission destination control device 1 creates configuration information and returns data to the port of the transmission source control device 1. (See Figure 14)
7) The information received by the FRA 7 of the transmission source control device 1 is passed to the CM 4.
8) The data is transmitted from the CM 4 to the maintenance port 6 and transmitted from the maintenance port 6 to the maintenance terminal 3.
9) The maintenance terminal 3 converts this and displays it so that the user can easily see it.

For example, a port that does not permit remote copy or a port that has not been configured is not selectable so that it cannot be set in advance.
10) The user visually checks the WWN (World Wide Name) or the like in the acquired information in order to reconfirm whether the other apparatus is connected to the FRA 7 of the transmission source device by viewing the display content. If not applicable, the processing is interrupted because of a connection error.
11) If there is no problem as the transmission destination device, check and set the connection destination port. If the connection destination port cannot be selected because it cannot be copied or is not set, the processing is interrupted because of a configuration error.

When the above settings are completed, the user selects the data area to be duplicated when performing remote copy, sets the transfer speed according to the business situation, and then starts remote copy.

  As a result, the configuration information data can be exchanged between the storage devices in the storage area network as shown by the arrows in FIG. 2B, so that one maintenance terminal 3 can perform the work. . See FIG. 2 (b).

  Further, in terms of the system configuration, there is no need for a plurality of communication LANs for connecting the maintenance terminals 3 and LANs or SCSI interfaces for connecting the maintenance terminals 3 and the storage devices, and system management can be performed at low cost.

  Also, with this setting, the remote support target device judgment table also has means for adding / deleting from the maintenance terminal 3, so that even if a new device is targeted or a device that is not targeted, Settings can be made easily without turning off the power or stopping the system.

  FIG. 3 shows a flowchart of the remote copy permission setting process.

  FIG. 8 shows an example of the remote permission setting screen.

  When "license confirmation" is selected from the screen menu of the maintenance terminal 3, a remote permission setting screen is displayed. Enter the remote permission license number from the maintenance terminal 3 and press the Set button (step S11). See FIG. 8 (a).

  It is determined whether the maintenance port 6 has the correct license number (step S12).

  If it is determined to be correct, the maintenance terminal 3 displays that remote copy processing has been permitted (step S13). See FIG. 8 (b). When the OK button is pressed, a remote copy permission setting (port setting) screen is displayed, and transmission / reception for each port of the FRA 7 is set. (Step S14).

  For example, the transmission / reception mode is set for Port0, the transmission mode for Port2, and the transmission mode for Port7. “Send / Receive” mode indicates that both transmission and reception can be performed simultaneously in remote copy, “Sender” mode indicates that the local device is the source for remote copy, and “Destination” mode indicates that Indicates that the device is the destination for remote copy. See FIG. 8 (d).

  Next, when the setting is completed and the Set button is pressed, a remote copy permission setting (port setting confirmation screen) is displayed, so the screen setting content is confirmed. See FIG. 8 (e).

  When the confirmation completion OK button is pressed, the contents are notified to the maintenance port 6 (step S15).

  Next, the maintenance port 6 notifies the setting contents to the CM 4 (step S16).

  After reflecting on the configuration information table, the CM 4 notifies the maintenance port 6 of completion (step S17).

  The maintenance port 6 displays on the maintenance terminal 3 that the setting has been completed (step S18).

  If the maintenance port 6 determines that the license number is incorrect, the maintenance terminal 3 displays that the license is not permitted (step S19).

  For example, “License is wrong. Please check the license and input again.” Is displayed. See FIG. 8 (c).

  FIG. 4 shows a flowchart of the remote copy search process.

  FIG. 9 shows a screen example 1 of the remote copy setting.

  When “remote copy setting” is selected from the screen menu of the maintenance terminal 3, the own apparatus ID, the Search button, etc. are displayed as the remote copy screen. This screen is valid only when the license is confirmed. See FIG. 9 (a).

  When the Search button is pressed, a device that can be connected to the own device is searched (step S21). The maintenance port 6 requests the FRA 7 to search via the CM 4 (step S22).

  The FRA 7 acquires information registered on the fiber channel switch on the network, for example, WWN (World Wide Name), and creates a table of manufacturer name, device type, and model code. (Step S23).

  The FRA 7 passes the acquired table to the check mechanism 5 (step S24).

The check mechanism 5 selects a copyable device from the table contents and creates a remote copy candidate table (step S25).
In the check mechanism 5, conditions that can be copied in advance are registered as a determination table.
The following conditions are determined.
・ The product must be from a specified manufacturer.
-The disk device.
-The device to be copied. For example, model code.

Next, the check mechanism 5 passes the created table to the FRA 7 (step S26).
The FRA 7 refers to the table returned from the check mechanism 5 and acquires detailed information Inquiry Data for the corresponding device by using the Inquiry command (step S27).

  FIG. 14 shows an example of Inquiry Data.

  The values displayed in the “Qualifier” and “Device Type Code” fields of Byte 0 are the same as the standard inquiry data.

The “page code” field of Byte 1 indicates the page code of the VPD information itself. (Here, it is F1h.)
The “page length field” of Byte 3 indicates the length (byte length) after Byte 4. This value indicates the length of this VPD information regardless of the specification of the “Transfer byte length” field of CDB.
byte 32-39: Status
0x00: Connect to Server
0x01: Copy permission (both transmission and reception can be operated simultaneously)
0x02: Copy permission (sender)
0x03: Copy permission (destination)
0xFF: Offline
As an example, an 8-port device is used, but it can be matched to the number of ports installed in the device.

  In addition, although the contents also describe the status of simple copying permission, the purpose is to send the data necessary for copying, so the contents are also added or changed, and the data length is set along with the number of ports etc. Decide.

The detailed information includes Port copy permission information of each apparatus, that is, information such as a transmission source, a transmission destination, transmission / reception, and WWN.
The FRA 7 creates a detailed information table to which detailed information has been added and passes it to the CM 4 (step S28).
CM 4 passes the detailed information table to maintenance port 6 (step S29).
The maintenance port 6 sends a detailed information table to the maintenance terminal 3 (step S30).
The maintenance terminal 3 edits and displays the received detailed information table.
For example, the search result screen includes the own device WWN and a plurality of settable devices WWN. See FIG. 9 (b).
FIG. 5 shows a flowchart of the remote copy setting process.
FIG. 9 shows a screen example 1 of the remote copy setting.
A connection destination device is selected from the maintenance terminal 3 (step S41).
That is, since a plurality of counterpart devices WWN are displayed on the remote copy setting screen (search result) display screen, device selection is performed first. See FIG. 9 (b).
When the device selection button is pressed, the own device WWN, the selection device WWN, the status of each port of the selection device, that is, the transmission destination and the transmission source in the copy permitted state on the remote copy setting screen (search detail screen) Is displayed, the port connection relationship is set to determine whether the selected device is the transmission destination or the transmission source. See FIG. 9 (c). That is, when the Select-to button is pressed, the selected device is the transmission destination, and when the Select-from button is pressed, the selected device is the transmission source.

  When set, the maintenance port 6 confirms the remote copy permission setting information of its own device with the CM 4 (step S42).

  The CM 4 passes the remote copy permission setting information of its own device to the maintenance port 6 (step S43).

The maintenance port 6 creates a table that can be set based on the remote copy permission setting information of the own device and the detailed information table of the selected device (step S44).
The maintenance port 6 sends a settable table to the maintenance terminal 3 (step S45).
FIG. 10 shows a screen example 2 of the remote copy setting.
Since the maintenance terminal 3 displays the settable table, the user sets a route from the displayed contents (step S46).
For example, when the local device is the transmission source and the selection device is the transmission destination, the port combination is displayed in the configurable table, so select the port number of the local device to be used and the port number of the connection destination device. To do. See FIG. 10 (d).

  On the Select-to screen, check boxes are displayed for selection only when the own device is the transmission source and the connection destination is the transmission destination relationship.

  On the Select-from screen, only those that have the opposite relationship can be displayed and selected in the same way.

When selected, the remote copy setting (Select-to setting confirmation screen) is displayed. If there is no problem, press the OK button. See FIG. 10 (e).
When the set contents are confirmed, the information is sent to the maintenance port 6 (step S47).
The maintenance port 6 notifies the setting contents to the CM 4 (step S48).
The CM 4 reflects it in the configuration information table and notifies the maintenance port 6 of the completion (step S49).
The maintenance port 6 notifies the maintenance terminal 3 that the setting has been completed and displays it on the maintenance terminal 3 (step S50). For example, “Setting is complete” is displayed on the maintenance terminal 3. See FIG. 10 (f).

  FIG. 6 is a flowchart of the remote copy current setting display process.

  FIG. 11 shows an example of a remote copy current setting display screen.

  When “remote copy setting” is selected from the screen menu of the maintenance terminal 3, the own apparatus ID, the Search button, the Display button, and the like are displayed as the remote copy setting screen. See FIG. 9 (a).

  First, the current setting is selected by pressing the Display button from the maintenance terminal 3 (step S51).

For example, the own device WWN and the currently set device WWN are displayed. See FIG. 11 (a). Here, press the Display button.
The maintenance port 6 requests the CM 4 to provide the current remote setting information (step S52).
The CM 4 notifies the current remote setting information to the maintenance port 6 (step S53).
The maintenance port 6 passes information to the maintenance terminal 3 (step S54).
The maintenance terminal 3 displays the contents. For example, the WWN of the own device indicating the remote copy setting (current detailed setting), the WWN of the connection device, and the connection route are displayed. See FIG. 11 (b).
FIG. 7 shows a flowchart of processing for displaying / registering / deleting a remote copy target device.
FIG. 12 shows a display / registration / deletion screen example 1 of the remote copy target device, and FIG. 13 shows a display / registration / deletion screen example 2 of the remote copy target device.

The remote copy target registration is selected from the screen menu of the maintenance terminal 3.
Since the remote copy target device registration screen is displayed on the maintenance terminal 3, a process is selected from “current condition”, “new condition registration”, or “condition deletion” (step S61). See FIG. 12 (a).

  The maintenance terminal 3 requests the maintenance port 6 to acquire the current conditions (step S62).

The maintenance port 6 requests the CM 4 to acquire a condition (step S63).
CM 4 sends the condition to maintenance port 6 (step S64).
The maintenance port 6 sends conditions to the maintenance terminal 3 (step S65).
A screen is displayed on the maintenance terminal 3 (step S66).
The current condition or new registration or deletion screen is displayed.
If “current conditions”, for example, the company code and model code of the remote copy target device are displayed. See FIG. 12 (b).
In the case of “new registration”, a condition name input screen such as a company name code and a model code is displayed. See FIG. 12 (c).
If it is “Delete”, the company name code, model code, check column, etc. are displayed. See FIG. 13 (f).
The presence or absence of processing is confirmed (step S67).
If there is no processing, the process ends.
In the case of processing, conditions are input or deleted (step S68).
Next, display the consistency with the current conditions, confirm the contents, and send it to the maintenance port (step S69).
The maintenance port 6 notifies the contents of the setting to the CM 4 (step S70).
The CM 4 reflects it in the configuration information table and notifies the maintenance port 6 of the completion (step S71).
The maintenance port 6 notifies the maintenance terminal 3 that the setting has been completed, and displays it on the maintenance terminal 3 (step S72).
For example,
When “current condition” is selected, for example, a company code and a model code of the remote copy target device are displayed, so that it is possible to select whether to add or delete. At this time, the screen moves to the “new registration” screen when the “add” button is pressed, and shifts to the “delete” screen when the “delete” button is pressed. See FIG. 12 (b).
When “New registration” is selected, a remote copy target device registration (new registration) screen is displayed. Select a condition name such as a company code and a model code, and input a corresponding code. When the input is completed, the Set button is pressed. See FIG. 12 (c).
Next, a registration confirmation screen is displayed. If there is no problem after confirmation, the SET button is pressed.
See FIG. 12 (d).

  When registration is complete, a completion screen is displayed. See FIG. 13 (e).

  When “Delete” is selected, a remote copy target device registration (deletion) screen is displayed. Select the condition to be deleted and press the Set button. See FIG. 13 (f).

  Next, a deletion confirmation screen is displayed. If there is no problem after confirmation, the Set button is pressed.

  FIG. 13 (g).

  When registration is complete, a completion screen is displayed. See FIG. 13 (h).

Regarding the embodiment including the first example, the following additional notes are disclosed.
(Supplementary Note 1) A connection path determination method for remote copy control of a control device connected to a storage area network through a port, and the own device port information for setting operation mode information of a port used for remote copy of the own device A setting step, a target device setting step for setting target device identification information as a remote copy destination, an other device information acquisition step for acquiring other device identification information from the network, and the acquired other device identification information and target A target device determination step for comparing the target device identification information set by the device setting means to determine whether or not the device is a remote copy target device; and if the target device is determined, obtain port information from the target device Connection between devices based on the port information acquisition step and the acquired port information of the target device and the port information of the local device Connection path determination method characterized by having a remote copy connection path determining step of determining a road information.
(Supplementary note 2) The connection path determination method according to supplementary note 1, wherein the target device setting step includes an update deletion step of updating and deleting the contents.

(Supplementary note 3) The connection route determination method according to supplementary note 1, wherein the port information acquisition step uses an inquiry command of a SCSI command.
(Supplementary Note 4) A connection path determination program for remote copy control executed by a control device connected to a storage area network through a port, and which sets operation mode information of a port used for remote copy of the own device Device port information setting step, target device setting step for setting target device identification information as a remote copy destination, other device information acquisition step for acquiring other device identification information from the network, and acquired other device identification A target device determination step for determining whether the target device is a remote copy target device by comparing the information with the target device identification information set by the target device setting means, and if the target device is determined, the port information from the target device Port information acquisition step for acquiring the port information of the acquired target device and the port of its own device Connection path determining program for executing the remote copy connection path determining step of determining a connection route information between the devices from the distribution.
(Supplementary Note 5) The connection route determination program according to Supplementary Note 4, wherein the target device setting step includes an update deletion step of updating and deleting the contents.

(Supplementary note 6) The connection route determination program according to supplementary note 4, wherein the port information acquisition step uses an inquiry command of a SCSI command.

(Supplementary note 7) In a storage device connected to a storage area network via a port,
The own device port information setting means for setting the operation mode information of the port used for remote copy of the own device, the target device setting means for setting the target device identification information as the remote copy destination, and the other device identification information on the network Other device information acquisition means acquired from above, target device determination means for comparing the acquired other device identification information with the target device identification information set by the target device setting means to determine whether or not it is a remote copy target device If the target device is determined, the port information acquisition means for acquiring the port information from the target device, and the connection route information between the devices is determined from the acquired port information of the target device and the port information of the own device. And a remote copy connection path determination means.
(Supplementary note 8) The storage device according to supplementary note 7, wherein the target device setting means includes an update deletion step of updating and deleting the contents.

(Supplementary note 9) The storage apparatus according to supplementary note 7, wherein the port information acquisition unit uses an inquiry command of a SCSI command.

(Appendix 10) In the storage system that performs remote copy of data between multiple storage devices connected to the storage area network and ports, the local device port information setting that sets the operation mode information of the port used for remote copy of the local device Means, target device setting means for setting target device identification information as a remote copy destination, other device information acquisition means for acquiring other device identification information from the network, acquired other device identification information and target device A target device determination unit that determines whether the target device is a remote copy target device by comparing with the target device identification information set by the setting unit; and a port that acquires port information from the target device if the target device is determined Connection path between devices based on information acquisition means, acquired port information of target device and port information of own device A storage system comprising: a remote copy connection path determining means for determining information.

  In a storage area network, the present invention can be applied to a purpose of providing a storage apparatus that automatically sets configuration information in remote copy between storage apparatuses.

Configuration diagram of control device of embodiment Configuration diagram of the storage system of the embodiment Remote copy permission setting process flowchart Remote copy search process flowchart Remote copy setting process flowchart Remote copy current settings display processing flowchart Flow chart of display / registration / deletion processing of remote copy target device Remote copy permission setting screen example Remote copy setting screen example 1 Remote copy setting screen example 2 Remote copy current setting display screen example Remote copy target device display / registration / deletion screen example 1 Remote copy target device display / registration / deletion screen example 2 Inquiry Data example Conventional configuration diagram

Explanation of symbols

1 Control device 2 Storage device 3 Maintenance terminal 4 CM
5 Check mechanism 6 Maintenance port 7 FRA
8 Disk unit

Claims (3)

In the control device connected to the storage area network with a port,
Own device port information setting means for setting operation mode information of a port used for remote copy of the own device;
Target device setting means for setting target device identification information as a remote copy destination;
Other device information acquisition means for acquiring other device identification information from the network,
Target device determining means for comparing the acquired other device identification information with the target device identification information set by the target device setting means to determine whether or not it is a remote copy target device;
If it is determined as a target device, port information acquisition means for acquiring port information from the target device;
A control apparatus comprising: a remote copy connection path determination unit that determines connection path information between apparatuses from the acquired port information of the target apparatus and the port information of the own apparatus.   2. The control device according to claim 1, wherein the target device setting means includes update deletion means for updating and deleting the contents.   2. The control device according to claim 1, wherein the port information acquisition unit uses an inquiry command of a SCSI command.

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