JP5128876B2 - Backup system - Google Patents

Description

  The present invention relates to a backup system for backing up and restoring data in a computer system.

  In recent computer systems, application (AP) servers that perform various tasks store data in a disk subsystem in which a plurality of magnetic disk devices are RAID-connected via a SAN (Storage Area Network), and this disk subsystem is stored on a magnetic tape. Is stored in a magnetic tape storage device using the recording medium as a recording medium, and the magnetic tape storage device is configured to restore data necessary for, for example, system reconstruction or disaster to the disk subsystem.

As a document describing a technique for backing up data in the magnetic tape storage device, for example, the following patent document can be cited. In this patent document, generation data from a disk subsystem is stored in a magnetic tape storage device. A technology is described in which history information relating to this backup is stored at the time of backup, and data is restored to the disk subsystem by referring to the history information at the time of restoration.
JP 2006-40065 A

  Although the above-described backup system according to the prior art can restore using backup history information, for example, when backing up or restoring specific data, an operator uses a management computer to execute a command-based batch file. It is necessary to create a statement, transfer the batch file statement to the magnetic tape storage device, and cause the magnetic tape storage device to execute a command included in the batch file statement according to the parameters. This batch file statement cannot determine whether the arguments and variables of commands and parameters are pre-permitted values until it is executed by the magnetic tape storage device. If an incorrect process is executed, an incorrect backup or restore will be performed. There was a problem that data could be lost.

  An object of the present invention is to provide a backup system that supports creation of a batch file statement for performing backup and restoration and can reduce errors during execution.

  In order to achieve the above object, the present invention provides a magnetic tape storage device for backing up and storing volume data stored in a disk subsystem, and a processing content or magnetic field for backing up the volume data from the disk subsystem to the magnetic tape storage device. A backup system connected to a management computer for creating a batch file statement for specifying processing contents to be restored from a tape storage device to a disk subsystem, the batch file statement for instructing the backup and restore A parameter table including a command and a plurality of parameters in which an argument or variable is set for each command, wherein the management computer stores a setting argument or a setting variable preset for each parameter of the batch file statement; , A note table for storing note information for each meter and a display device for displaying the information are provided, and a parameter selection screen having a plurality of parameters and characters and icons corresponding to arguments or variables of the parameters is displayed on the display device. A first step for allowing the operator to select the character or icon, and a parameter for the setting argument or setting variable set in advance corresponding to the parameter corresponding to the character or icon selected from the selection screen in the first step A second step of extracting from the table, and determining whether or not the setting argument or setting variable extracted in the second step matches the argument or variable of the parameter selected from the selection screen, A third step of creating a batch file statement by combining parameter arguments or variables and commands, and the second step The notes information corresponding to the parameters included in the batch file sentence extracted from the notes table, the notes information sentence is created by combining the extracted notes information, and created by the third step When the output instruction of the batch file sentence displayed by the 5th process and the 5th process which displayed the batch file sentence and the notes information sentence created by the 4th process on the display device are inputted, the batch file sentence is The sixth step of outputting in a text file format is executed.

  The backup system according to the present invention stores arguments or variables set in advance according to a plurality of parameters and precaution information corresponding to the parameters in each table, and the parameters or parameters selected by the administrator Judges whether or not the variable matches the setting argument or setting variable stored in the table in advance, and displays the batch file sentence including the matching argument or variable and the note information sentence corresponding to the argument or variable on the display device By doing so, even an administrator who is unfamiliar with the operation can easily create a batch file sentence with reduced errors.

Hereinafter, a backup system according to an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a diagram showing a computer system to which a backup method according to the present embodiment is applied, FIG. 2 is an overall operation flowchart of a management computer that executes the backup method according to the present embodiment, and FIG. 3 is a flowchart of parameter extraction processing. 4 is a flow diagram of the notes extraction process, FIG. 5 is a diagram showing examples of command parameters and notes, FIG. 6 is a diagram showing examples of logs at the time of rehearsal log execution, and FIG. 7 is a diagram showing examples of execution result tags. FIG. 8 is a diagram showing an example of rehearsal execution results, and FIG. 9 is a diagram showing examples of selection parameters.
[Constitution]

  First, as shown in FIG. 1, a computer system to which a backup control method according to the present embodiment is applied is connected to an application server 10 that performs various operations, and the application (AP) server 10 via a network such as a SAN (not shown). The disk subsystem 20 that stores the data of the AP server 10 as volume data, and the volume data stored in the disk subsystem 20 directly connected to the AP server 10 via FC (Fibre Channel), etc. It comprises a magnetic tape storage device 40 that performs restoration, and a management computer (PC) 30 that controls the magnetic tape storage device 40 and the like to control backup and restoration of volume data. The magnetic tape storage device 40 has an initiator function for transferring data to and from the disk subsystem 20 as a target.

  The management PC 30 stores a batch file statement for causing the magnetic tape storage device 40 to perform backup of volume data from the disk subsystem 20 to the magnetic tape storage device 40 or restore from the magnetic tape storage device 40 to the disk subsystem 20. A command parameter table 80 for storing various commands used in the batch file statement and parameter setting arguments or setting variables allowed for the command, and precautions when specifying the command parameters. And a configuration pattern precaution table 90 stored in accordance with the parameters. The permitted parameter setting argument or setting variable is, for example, a system such as a deck group number or a number of groups assigned to a magnetic tape recording / reproducing deck constituting the magnetic tape storage device 40, a number of groups across tapes, etc. Arguments and variables that the system can accept depending on the configuration of

  The command parameter table 80 stores various parameters used when backing up and restoring specified volume data and setting arguments or setting variables permitted by the system for each parameter. For example, as shown in FIG. 5, “−g” for specifying a deck group number for designating a deck (magnetic tape recording / reproducing deck) for data recording / reproduction, a deck corresponding to the designated deck group, and a tape number for each set. "-M" to specify the batch number to be executed "-b", to specify the number of sets across the tape "-pc", whether to check the latest generation of the tape "-t", the tape Alphabets such as “-n” indicating whether or not the volume name is checked, “−r” indicating whether or not the generation number is checked, The argument or variable preset for each parameter in the command parameter table 80 is, for example, a deck number according to the system configuration such as the number of decks or a flag value [0 or 1] indicating whether or not to check. It is.

  In addition, the configuration pattern precaution table 90 shows precautions corresponding to the argument or variable, for example, when backup data of the latest LU exists at the time of the argument “0” of the safety mode parameter “−t” shown in FIG. It stores parameters, arguments, and caution information for the administrator as text data, such as stopping the operation or ignoring the backup data even if the argument is “1” and continuing overwriting. .

The batch file statement is created by a character string consisting of a command and parameters including arguments or variables, such as the host IP address, the deck number of the magnetic tape recording / playback device to be used, the tape number, the number of tapes used, etc. For example, “t80bkup host -gGROUP0 -mTAPEN0 -bBATCHN0 -pcPARTYCOUNT [-tTAPECHEKLEVEL] [-n] [-r]” is created.
[Operation]

  Data backup or restoration from the disk subsystem 20 to the magnetic tape storage device 40 in the computer system configured as described above is performed by the administrator using the management PC 30 to create a batch command statement, and this batch command statement is used to store the magnetic tape. The operation performed by the apparatus 40 will be described below by taking this backup operation as an example.

  In this backup process, first, as shown in FIG. 2, the management PC 30 displays a selection screen for backup or restore on the display, and the parameter corresponding to the selected process and the argument or Step S201 for displaying a variable selection screen and step S202 for selecting and inputting a parameter selected by the administrator and an argument or variable corresponding to the parameter from the selection screen are executed. The selection parameters and arguments or variables displayed on the display in step S202 are, for example, as shown in FIG. 9, the IP address of the tape array device, the library number, the tape number, the batch number, the number of sets across the tape (the data amount is Many characters and icons that can be recognized by the administrator, such as whether or not the latest generation check, volume (VOL) name check, generation number check, etc. The contents and object of processing are represented by small pictures and symbols).

  Next, this process determines whether or not to continue the batch file sentence creation according to the input of the administrator, and when it is determined that the batch file sentence creation is to be continued, the process returns to step S202 when it is determined that the batch file sentence creation is to be continued. Step S204 for extracting the parameter selected in step S202 and the previously set argument or variable from the command parameter table 80 when determined, and notes for the extracted parameter from the configuration pattern note table 90. Step S205 of extraction is executed.

  The details of the parameter extraction processing in step S204 are stored in step S301 for calling a parameter, argument or variable selected by the administrator, and the called parameter, argument or variable and command parameter table 80, as shown in FIG. A step S302 for comparing the parameters and setting arguments or setting variables of the batch file statement created by the administrator and determining whether or not the parameter arguments or variables of the batch file statement created by the administrator matches the setting arguments or setting variables allowed by the system; Then, step S303 for extracting the matched parameters from the command parameter table 80 in step S302, and step S304 for creating a batch file sentence by combining the extracted parameters and arguments or variables with the command are executed.

  As shown in FIG. 4, the details of the precaution extraction process in step S205 include step S401 for extracting a command included in the batch file sentence created in step S204, and parameters and precautions corresponding to the extracted command. Step 402 for comparing the parameters stored in the configuration pattern notes table 90, step S403 for extracting the notes information for the matched parameters as a result of the comparison in step 402 from the configuration pattern notes table 90, and these extracted Step S404 for creating a note text based on the note is executed.

  Next, the backup processing according to the present embodiment returns to FIG. 2, step S206 for displaying the batch file sentence and notes generated based on the parameters and notes read in steps S204 and 205, and the display in step S206. Step S207 for inputting the item selected by the administrator (parameter change / deletion, etc.) based on the selected item, and determining whether or not the administrator has input to output the batch file statement. Step S208 for ending the process, step S210 for determining whether or not an input is made when the test of the created batch file statement is executed, and step S210 for ending the process when it is determined to be not. Step S211 for testing the determined batch file sentence, and step S211 It operates so as to sequentially and a step S212 for displaying the rehearsal result by.

  The execution log of the batch execution rehearsal in the step S211 includes, for example, a plurality of tags such as “#CONF_SEARCH”, a log such as “Checking Error Log ...” indicating that the tag is being executed, and an execution log as illustrated in FIG. As shown in FIG. 7, the tag includes, for example, “#CONF_SEARCH”, “start of acquisition of device information of magnetic tape storage device”, and “#GETERROR”. 6 represents “acquisition of error information”, and the execution log shown in FIG. 6 displays the contents shown in FIG. 8 on the display of the management PC 30 as a display of the rehearsal result in step S212. The administrator can easily monitor the restore operation.

  As described above, in the backup processing according to the present embodiment, the management PC 30 determines whether or not an argument or variable of a command parameter arbitrarily selected by the administrator is permitted in advance with reference to the command parameter table 80. Because the parameter notes are referred to the configuration pattern notes table 90 to alert the administrator, even an administrator unfamiliar with commands can easily create batch file statements, so backup and restore It is possible to support creation of a batch file statement instructing and to reduce errors during execution.

The figure which shows the computer system with which the backup method by one Embodiment of this invention is applied. FIG. 3 is an overall operation flow diagram of a management computer that executes a backup method according to the present embodiment. The flowchart of the parameter extraction process by this embodiment. The flowchart of the notes extraction process by this embodiment. The figure which shows the example of the command parameter by this embodiment, and notes. The figure which shows the example of a log at the time of rehearsal log execution by this embodiment. The figure which shows the example of a tag of the execution result by this embodiment. The figure which shows the example of a rehearsal execution result. The figure which shows the example of a selection parameter.

Explanation of symbols

  10: Application server, 20: Disk subsystem, 40: Magnetic tape storage device, 80: Command parameter table, 90: Configuration pattern notes table.

Claims (1)

Magnetic tape storage device for backup storage of volume data stored in the disk subsystem, and processing contents for backing up the volume data from the disk subsystem to the magnetic tape storage device, or restoration from the magnetic tape storage device to the disk subsystem A backup system connected to a management computer that supports operator creation of batch file statements that specify processing content,
The batch file statement includes a command for instructing the backup and restore, and a plurality of parameters in which arguments or variables are set for each command,
The management computer displays a parameter table for storing setting arguments or setting variables set in advance for each parameter of the batch file statement, a notes table for storing notes information for the plurality of parameters, and information. A display device,
A first step of displaying a parameter selection screen having a plurality of parameters and characters and icons corresponding to arguments or variables of the parameters on a display device, and allowing an operator to select the characters or icons;
A second step of extracting, from a parameter table, the preset setting argument or setting variable corresponding to a parameter corresponding to the character or icon selected from the selection screen in the first step;
It is determined whether or not the setting argument or setting variable extracted in the second step matches the parameter argument or variable selected from the selection screen, and a plurality of parameter arguments or variables and commands determined to match. A third step of combining and creating a batch file statement;
A fourth step of extracting the precaution information corresponding to the parameter included in the batch file sentence created in the second step from the precaution table, and combining the extracted precaution information to create a precaution information sentence;
A fifth step of displaying a batch file sentence created in the third step and a notice information sentence created in the fourth step on a display device;
A backup system that executes a sixth step of outputting the batch file sentence in a text file format when an instruction to output the batch file sentence displayed in the fifth step is input.

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