JP2008243123A - Backup device, method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable backup for easily and inexpensively recovering a system. <P>SOLUTION: The backup device connected to a backup target system comprising predetermined hardware is provided with; an accumulated data backup means reading accumulated data accumulated in the backup target system and storing them; a software backup means for reading software operating the backup target system from the backup target system or a predetermined storage means and storing it; and a system configuration collection means collecting system configuration information representing a hardware configuration from the backup target system and storing it. The system configuration information includes connection relationship information representing a connection relationship between a plurality of pieces of hardware. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a backup apparatus, and more particularly to an apparatus for backing up an entire system configured with a plurality of hardware. The present invention also relates to a restore device that restores a backed up system to another system.

  Conventionally, when a system is backed up to cope with a system failure or disaster, data stored in a database or the like is backed up. After that, when the system is restored, the system infrastructure that handles data such as hardware and basic software is restored, and then the backed up data is restored to the system infrastructure. Thereby, even if a system failure occurs, the operation can be resumed in another system.

  However, in the above-described conventional method, when the entire system infrastructure that handles data is destroyed, it is necessary to first rebuild the system infrastructure in order to restore the system. Is costly. For example, at present, hardware platforms such as blade servers and grid systems that can easily change the system configuration by software settings are becoming popular. On the other hand, the method of building a system from scratch is the conventional method. Therefore, as described above, there is a problem that a great deal of labor, time, and cost are required for the restoration work. Further, not only when the system is restored, but also when the system is newly operated separately from the same system as the existing system, the same problem as described above arises because the system is built from scratch.

  Here, techniques for easily realizing system recovery are disclosed in Patent Documents 1 to 3 below. For example, Patent Document 1 discloses backing up setting information of a communication device, and Patent Document 2 discloses backing up a boot disk image of a computer. Patent Document 3 describes storing a part of an image of a host device and simulating a backup facility that is compatible with the operating environment of the host device.

JP 2003-8573 A Japanese translation of PCT publication No. 2002-522826 Special table 2003-532219 gazette

  However, the above-described conventional technique is intended to back up a device using one piece of hardware, and in order to back up a system composed of a plurality of pieces of hardware, a complicated system construction is still performed from the beginning. Need arises. When the system is restored, there is a problem that work becomes more difficult and labor and cost increase as the system scale becomes enormous, such as grasping necessary hardware and recognizing relationships between hardware.

  In particular, a system constructed in a company or the like in recent years is connected to a network N via a firewall (FW) as shown in FIG. 11, for example, and includes a Web server (Web), an application server (AP), a database, and the like. In many cases, the network system 100 is configured such that servers (DB), storage servers (Storage), and the like are connected in layers. As described above, when the system to be backed up is complicated and enormous in scale, it becomes more difficult to recover.

  In addition, it may be possible to multiplex and build the entire system infrastructure in advance using a method such as hot standby or cold standby, which can reduce labor during restoration (restoration). Since it is necessary to prepare the hardware investment, the hardware investment is doubled to several times, and there is a problem that a very large cost is required.

  Therefore, an object of the present invention is to provide an apparatus, a method, and a program that can improve the disadvantages of the above-described conventional example and can be backed up so that the system can be easily restored at low cost.

Therefore, a backup device according to one aspect of the present invention is
A backup device connected to a backup target system configured with predetermined hardware,
Accumulated data backup means for reading and storing the accumulated data accumulated in the backup target system;
Software backup means for reading and storing software for operating the backup target system from the system or from a predetermined storage means;
System configuration collection means for collecting and storing system configuration information representing the hardware configuration of the backup target system;
It is characterized by having.

  The system configuration information is characterized in that it includes connection relationship information representing a connection relationship between a plurality of hardware configuring the backup target system. In particular, the connection relation information is characterized in that it represents a connection relation between a plurality of hardware in a network constructed in the backup target system.

  According to the above invention, from the backup target system having a plurality of physical hardware and logical hardware, the accumulated data, the basic software for operating the system, and the system configuration information representing the system configuration are backed up. The Therefore, later, by using the backed up system configuration information, it is possible to easily restore a complicated system configuration including a plurality of hardware. The entire system can be restored by restoring the backed-up base software and stored data in the restored system configuration. At this time, since the restoration can be performed with reference to the system configuration information, the hardware configuration different from the backup target system can be easily restored.

  In particular, a complicated system configuration can be restored more easily and accurately by backing up connection relation information representing a connection relation between a plurality of pieces of hardware.

  Further, the system configuration information is characterized in that it includes information representing the performance of hardware capable of realizing the backup target system stored in advance in the backup target system. This makes it possible to recognize the required performance of the system to be restored, so that the system can be constructed so as to be operable, and the certainty of restoration is increased.

  Further, the system configuration collecting means collects and stores differential system configuration information representing the configuration of the system that has changed in comparison with the system configuration corresponding to the system configuration information collected last time. At this time, the software and stored data may also be differentially backed up. As a result, even if there is a change in the system configuration, such as when hardware is added to the backup target system, only the information representing the differential configuration needs to be backed up and stored, so the backup process is performed quickly. be able to.

  Furthermore, the backup device is characterized by comprising system restoration information generating means for generating and storing virtual hardware information representing hardware necessary for the restoration destination system based on the system configuration information. At this time, the system restoration information generating means generates and stores restoration destination connection relation information representing a connection relation between hardware necessary for the restoration destination system based on the system configuration information and the virtual hardware information. It is characterized by. The virtual hardware information includes information representing the performance of hardware capable of realizing the restoration destination system.

  As a result, virtual hardware information indicating the hardware configuration necessary for restoration is generated from the system configuration information collected from the backup target system, and restoration work is facilitated by referring to this. Furthermore, since information indicating the connection relationship between the hardwares of the restoration destination system is also generated, the restoration becomes easier. At this time, since the performance necessary for the hardware can be recognized, the system can be restored more reliably.

  Further, the backup device is further based on storage means for storing restoration destination hardware information representing a hardware configuration provided in advance in the restoration destination system, virtual hardware information, and restoration destination hardware information. And a restoration determination means for determining whether or not the backup target system can be restored to the restoration destination system. In addition, a storage unit that stores compatibility information between predetermined hardware is provided, and the restoration determination unit determines whether the backup target system is based on the virtual hardware information, the restoration destination hardware information, and the compatibility information. It is characterized by determining whether or not restoration is possible in the restoration destination system. As a result, it is automatically determined whether or not the system configuration represented in the virtual hardware information can be realized by the hardware of the restoration destination system, so that more reliable restoration can be realized.

  Further, the backup device includes a hardware configuration restoring unit that restores the hardware configuration to the restoration destination system based on the virtual hardware information, and the restoration destination system that restored the hardware configuration. And a software restoring means for restoring the stored software and an accumulated data restoring means for restoring the stored accumulated data. As a result, system restoration is automatically executed, and convenience can be improved.

  Here, in the present invention, the above-described operation after backup may be realized by another device. For example, it is a restore device that can acquire information stored in a backup device, and stores restoration destination hardware information that represents a hardware configuration that is physically or logically configured in advance in the restoration destination system. It is characterized by comprising storage means, and restoration judgment means for judging whether or not the backup target system can be restored to the restoration destination system based on the virtual hardware information and the restoration destination hardware information.

  In addition, the restoration apparatus includes a storage unit that stores compatibility information between predetermined hardware, and the restoration determination unit performs backup based on the virtual hardware information, the restoration destination hardware information, and the compatibility information. It is characterized by determining whether or not the target system can be restored to the restoration destination system. Further, based on the virtual hardware information, hardware configuration restoring means for restoring the hardware configuration to the restoration destination system, and the stored software for the restoration destination system to which the hardware configuration is restored are restored. And a stored data restoring means for restoring stored stored data.

The present invention also provides a method for backing up a backup target device in an information processing device connected to a backup target system composed of predetermined hardware,
An accumulated data backup process for reading and storing the accumulated data accumulated in the backup target system;
A software backup step of reading software for operating the system to be backed up from the system or from a predetermined storage means;
A system configuration collection step for collecting and storing system configuration information representing the hardware configuration of the backup target system;
And each step is executed in an arbitrary order.

  Then, after the system configuration collection step, the information processing apparatus has a system restoration information generation step for generating and storing virtual hardware information representing hardware necessary for the restoration destination system based on the system configuration information. It is a feature. After that, the information processing apparatus or other information processing apparatus generates the restoration destination hardware information representing the hardware configuration provided in advance in the restoration destination system stored in a predetermined storage unit and the system restoration information generation step. And a restoration determination step of determining whether or not the backup target system can be restored to the restoration destination system based on the virtual hardware information.

  Further, after the system restoration information generation step, a hardware configuration restoration step in which the information processing apparatus or another information processing apparatus restores the hardware configuration to the restoration destination system based on the virtual hardware information; A software restoration process for restoring stored software and an accumulated data restoration process for restoring stored accumulated data in an arbitrary order with respect to the restoration destination system whose hardware configuration has been restored in the hardware configuration restoration process. It is characterized by having.

  In the present invention, the above-described backup device and restore device, and further, a program for realizing the backup method by an information processing device are also provided. For example, the program according to one aspect of the present invention includes an accumulated data backup unit that reads and stores accumulated data accumulated in the backup target system in an information processing apparatus connected to the backup target system including predetermined hardware; Software backup means for reading and storing software for operating the backup target system from the system or predetermined storage means, and system configuration collection means for collecting and storing system configuration information representing the hardware configuration from the backup target system It is characterized by realizing.

  Further, the information processing apparatus is characterized by realizing system restoration information generating means for generating and storing virtual hardware information representing hardware necessary for the restoration destination system based on the system configuration information. In addition, in the information processing apparatus, restoration destination hardware information representing a hardware configuration provided in advance in a restoration destination system stored in a predetermined storage unit, and virtual hardware information generated by the system restoration information generation unit Based on the above, a restoration judging means for judging whether or not the backup target system can be restored to the restoration destination system is realized. Further, in the information processing apparatus, based on the virtual hardware information, a hardware configuration restoring unit that restores the hardware configuration to the restoration destination system, and a restoration destination system in which the hardware configuration is restored The present invention is characterized by realizing software restoring means for restoring the stored base software and stored data restoring means for restoring the stored accumulated data.

  Since the method and program configured as described above operate in the same manner as the backup device described above, the object of the present invention can be achieved.

  Since the present invention is configured and functions as described above, according to this, the system configuration information is backed up from the backup target system. By using this, a complicated system configuration including a plurality of hardware can be easily achieved. The entire system can be easily restored by restoring backed up software and stored data in the restored system configuration. By referring to the system configuration information, it is possible to easily restore a hardware configuration different from the backup target system. Therefore, it has an unprecedented excellent effect that a complicated system configuration can be restored more easily and more reliably.

  The present invention is characterized in that it backs up information including the system configuration so that the system can be easily restored later. Hereinafter, a specific configuration and operation will be described in Examples.

  A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing the configuration of the entire system that performs backup and restore, and FIGS. 2 to 3 are functional block diagrams showing the configuration of the backup device. 4 to 7 are diagrams illustrating an example of information stored in the backup device. FIG. 8 is an explanatory diagram for explaining the operation of the entire system that performs backup and restore, and FIGS. 9 to 10 are flowcharts showing the operation of the backup device.

[Constitution]
<Backup source system>
As shown in FIG. 1, the system to be backed up in this embodiment (hereinafter referred to as “backup source system”) is configured to include a plurality of hardware such as a CPU, a memory, a network interface, and a hard disk drive. This is the backup source system 5. Specifically, as shown in FIG. 8, the backup source system includes a plurality of hardware units 51 to 54 such as CPUs constituting the system, and software function units 61 to 64 are respectively provided on the hardware units. Is built and working. A storage unit 55 is also provided for storing data necessary for the system to operate. Actually, for example, it is configured by a blade server.

  Here, the hardware units 51 to 54 configuring the backup source system 5 are hardware configured physically or logically. In other words, each of them may be physically divided hardware, or one physical hardware may be logically divided into a plurality of hardware. The software function units 61 to 64 operating on the hardware units 51 to 54 are realized by base software for operating the backup source system 5, and the base software is, for example, the backup source system 5 Is stored in the backup source system 5 so that it can be sucked out, or stored in the software library 50 which is another storage device. Further, the storage unit 55 stores actual data (accumulated data) used in the backup source system 5. The hardware 51 to 55 are connected to each other, so that an intra-system network is constructed in the backup source system.

  In addition, the backup source system 5 is connected to the backup device 1 via the network N, and in accordance with a backup command from the backup device 1, information representing the system configuration, infrastructure software, Outputs various information such as actual data.

<Restore destination system>
Further, as shown in FIG. 1, in the network N, as will be described later, based on the data backed up from the backup source system 5 by the backup device 1, the restore that is the restore destination of the backup source system 5 The destination system 7 is connected. That is, when a failure occurs in the backup source system 5, the backup source system 5 is restored to the restore destination system 7 based on the data backed up in advance by the backup device 1.

  As shown in FIG. 8, the restore destination system 7 includes a plurality of hardware such as a CPU, a memory, a network interface, and a hard disk drive. Specifically, in this embodiment, a plurality of hardware units 71 to 73 and a storage unit 75 are provided. At the time of restoration described later, the software function units 81 to 84 are constructed and operated on the hardware units 71 to 73, and the storage unit 75 stores data necessary for the system to operate. It becomes.

  Here, the hardware 71 to 75 configuring the restore destination system 7 is hardware configured physically or logically, like the backup source system 5 described above. In practice, for example, a blade server is used.

<Backup device>
The backup device 1 is a server computer (information processing device) connected to the backup source system 5 and the restore destination system 7 described above via the network N. In this embodiment, the backup device 1 is described as being configured by a single computer. However, a plurality of functions (processing units) included in the backup device 1 described below and stored information are included. The backup device 1 may be configured by a plurality of server groups.

  The backup device 1 has a backup function for backing up the backup source system 5 and a restore function for restoring to the restore destination system 7 based on the backed up data. Hereinafter, the configuration of the backup device 1 that implements the backup function will be described with reference to FIG.

  When a predetermined program is incorporated in the arithmetic unit 10 such as the CPU of the backup device 1 when realizing the backup function, as shown in FIG. 2, a system configuration information collection processing unit 11 and a system information backup processing unit 12 are provided. A basic software backup processing unit 13 and a data backup processing unit 14 are constructed. A system configuration information database 31 and a system backup image 32 are formed in a storage device such as a hard disk drive. The details will be described below.

  First, the system configuration information collection processing unit 11 (system configuration collection means) has a function of collecting system configuration information representing the configuration of the plurality of hardware 51 to 55 of the backup source system 1 and storing it in the system configuration information database 31. Have. At this time, the data is collected via predetermined hardware of the backup source system 1, or is collected by accessing each hardware. For example, the collected system configuration information includes information about the models of the hardware units 51 to 54 on which the software units 61 to 64 are operating, information about the storage units 55 and peripheral devices, and information between the hardware units 51 to 55. Information indicating the current hardware specifications, such as connection information in the intra-system network, information on network resources used for connection to the external network N, and information such as data arrangement on which the software unit depends. More specifically, the type / number / memory configuration of the CPU of the computer, the network interface (including type / operation speed, etc.) / Address of each computer, the storage interface / connection storage of each computer, the hub constituting the network, Information such as the type and configuration of the switch, the mount status of external data and file systems, and the capacity and identification name of the data area provided by the storage device are collected as system configuration information. The system configuration information may include specification information indicating the minimum or standard hardware performance required for execution by each software unit. This information is information stored in advance in the backup source system 5 such as in a software unit, for example.

  The system information backup processing unit 12 (system restoration information generating means) has a function of generating and storing a system backup image 32 necessary for system restoration in accordance with the backup of the system configuration information. First, a virtual hardware request list 33 (virtual hardware information) that defines hardware resources necessary for system operation is generated and stored. That is, in order to restore the backup source system 5 to the restore destination system 7, information representing the hardware configuration necessary for the restore destination system 7 is generated. For example, the restore destination system 7 includes specific hardware models (CPU, hard disk, network switch, etc.) required for operation and the number thereof, as well as specifications and interconnection performance. At this time, the minimum required for the restore destination system 7 based on the minimum or necessary specification information indicating the performance of the hardware that each software functional unit included in the system configuration information described above needs to execute. Information representing limited or standard hardware performance may be generated. An example of the generated virtual hardware request list 33 is shown in FIG.

  In addition, the system information backup processing unit 12 has a function of generating and storing information that defines the connection relationship between the hardware included in the virtual hardware request list 33 defined above. At this time, internal connection relation information 34 (restore destination connection relation information) that defines the internal connection relation between hardware in the internal network constructed in the restore destination system 7 is generated and stored in the system backup image 32. . Here, an example of the generated internal connection relation information is shown in FIG. 5, and is represented by information such as a network mask as shown in FIG.

  The system information backup processing unit 12 has a function of recognizing and extracting different information between the backup source system 5 and the restore destination system 7 and storing the information in the system backup image 32 as a custom parameter 35 that requires information setting. Have. For example, setting information such as an address used for connection with the external network N, which may not be usable unconditionally after the restoration, is extracted as the custom parameter 35. Here, an example of the generated custom parameter 35 is shown in FIG.

  Further, the system information backup processing unit 12 generates data arrangement information 36 that defines the data arrangement in the system and stores it in the system backup image 32. For example, in the data arrangement information 36, information on the storage unit 55 on which the software units 61 to 64 depend is recorded. More specifically, the logical unit of the storage system storing the data, the mount point on the network file system, and the like are stored as the data arrangement information 36.

  Further, the basic software backup processing unit 13 (software backup means) downloads software necessary for the backup source system 1 from the backup source system 1 or reads it from a software library 50 in which software is stored in advance, and stores it in a storage device. 30 and has a function of generating a base software image 37 in the system backup image 32. For example, all software may be copied from the software library 50. If software can be obtained from a library equivalent to the software library 50 at the time of restoration described later, the software may be backed up by storing only reference information for the library in the base software image 37.

  Further, the data backup processing unit 14 (accumulated data backup means) stores the actual data (accumulated data) accumulated in the storage unit 55 in the storage device 30 in the same manner as the normal storage system backup, and the system It has a function of generating an actual data backup 38 in the backup image 32.

  The system configuration information collection processing unit 11, the base software backup processing unit 13, and the data backup processing unit 14 described above operate at regular intervals to back up each information. At this time, the system configuration information collection processing unit 11 is information representing a portion that has changed compared to the system configuration information collected at the previous backup execution, that is, newly added or deleted hardware, Differential system configuration information including information representing a connection relationship with respect to is collected and stored. In response to this, the system information backup processing unit 12 operates, and based on the differential system configuration information and the system configuration information backed up so far, as described above, the virtual hardware request list and the like (33- The system backup image 32 of 36) is generated. Similarly, the basic software backup processing unit 13 and the data backup processing unit 14 collect only the newly updated difference information of the basic software and actual data and perform backup.

  Next, the configuration of the backup device 1 that realizes the above-described restore function will be described with reference to FIG. First, a predetermined program is incorporated in the arithmetic device 10 such as the CPU of the backup device 1 when realizing the restore function, whereby the hardware environment restore processing unit 21, the connection relation restore processing unit 22, and the custom information setting A processing unit 23, a data arrangement restoration processing unit 24, a base software restoration processing unit 25, and a data restoration processing unit 26 are constructed. In addition to the system backup image 32 formed by the above-described backup function, the existing hardware resource data 41 and hardware compatibility data 42 are stored in a storage device such as a hard disk drive. The details will be described below.

  First, the existing hardware resource data 41 (restoration destination hardware information) is information representing the configuration of hardware resources actually provided in the restoration destination system 7, the type, specifications, and performance of each hardware resource. is there. The hardware compatibility data 42 (compatibility information) is compatibility information indicating that the hardware actually provided in the restore destination system 7 can be used as alternative hardware. For example, the information represents upward compatibility based on hardware specifications and performance, compatibility between various types of hardware, and compatibility of operating environments.

  Here, a specific example of the compatibility of the hardware represented by the hardware compatibility data 42 will be described. For example, a CPU having a predetermined processing capability can be used in place of another CPU used within the range of the processing capability, and has compatibility. As another example, it can be said that the hardware such as a hard disk operating under a specific version of OS is compatible even when operating under an OS of this version or later. As another example, when the hardware is a database server computer and the server computer can also operate as a network storage or web server as other hardware, the compatibility with other server types is possible. It can be said that there is. Furthermore, as another example, the hardware itself is one, but if a single hardware can logically construct a plurality of hardware, it can be said that the hardware is compatible. . Information representing the above compatibility is stored as hardware compatibility data 42 for each hardware.

  Then, the hardware environment restore processing unit 21 (restoration determination means) reads the generated virtual hardware request list 33, refers to the existing hardware resource data 41 and the hardware compatibility data 42, and performs backup. Hardware resources necessary for the restore destination system 7 are guided so that the original system 5 can be restored to the restore destination system 7. Specifically, first, it is checked whether the same hardware as the hardware required in the virtual hardware request list 33 exists in the existing hardware resource data 41. For example, the current hardware resource data 41 is searched for hardware that matches the required hardware type, specifications, operating environment, and the like. In this check, even when there is no identical hardware, the hardware compatibility data 42 is referred to and other compatible hardware that can operate as a hardware unit included in the virtual hardware request list 33 is used. If the hardware exists in the restore destination system 7, it is used as alternative hardware.

  For example, when the hardware required in the virtual hardware request list 33 is a CPU having a predetermined processing capacity, if there is a CPU having a higher processing capacity, it is used as an alternative hardware. If the required hardware is a network storage, there is only a server computer for the database server as the existing hardware, but if this database server can also be used as a network storage, this database Use a server. Furthermore, as another example, the configuration realized by a plurality of hardware in the virtual hardware request list 33 is improved in performance and specifications by virtually dividing the single hardware in the restore destination system 7. If it is satisfactory, this configuration is substituted. For example, when three storages with a predetermined capacity are required, and only one hard disk is provided as the existing hardware, three virtual machines with the capacity requested from the one hard disk are provided. It is used when configuring a disk and satisfying the performance.

  The hardware environment restore processing unit 21 has a function of actually constructing the hardware configuration derived as described above in the restore destination system 7 (hardware configuration restoring means). In FIG. 8, the configuration corresponding to the two hardware units 53 and 54 of the backup source system 5 is replaced with one hardware unit 73 of the restore destination system 7.

  Further, the base software restore processing unit 25 (software restoration means) restores the base software image in the system backup image 32 with respect to the hardware configuration constructed in the restore destination system 7 as described above, and FIG. As shown in FIG. 4, software function units 81 to 84 are configured. As a result, functional units equivalent to the software functional units 61 to 64 in the backup source system 5 are constructed in the restore destination system 7.

  Further, the custom information setting processing unit 23 starts from the time of the backup source system 5 as the information that needs to be changed such as the network setting stored as the custom parameter 35 in the system backup image 32, that is, as the unique setting of the store destination system 7. Encourage the person performing the system restore (restorer) to set information that may need to be changed. Then, the setting information input by the restoration operator is received and transferred to the connection relation restoration processing unit 22.

  The connection relation restore processing unit 22 combines the newly set information passed from the custom information setting processing unit 23 with the internal connection information 62 stored in the system backup image 32 that does not need to be changed. Thus, the hardware interconnection information in the destination system 7 is derived and the setting is actually performed to restore the connection relation in the system.

  In addition, the data arrangement restoration processing unit 24, based on the data arrangement information 36 stored in the system backup image 32, for the units in which the software function units 81 to 84 are arranged as described above, Restore the placement information.

  Then, the data restore processing unit 26 (accumulated data restoration means) restores the actual data backup 38 stored in the system backup image 32 to the storage unit 75 of the restore destination system 7.

[Operation]
Next, operations during backup and restoration in the above configuration will be described with reference to FIGS. First, an operation when performing backup from the backup source system 5 will be described with reference to FIGS.

  First, the data backup processing unit 14 backs up the accumulated actual data from the storage unit 55 of the backup source system 5 and stores it as the actual data back 38 in the system backup image 32 (step S1, accumulated data backup process). ).

  Subsequently, the system configuration information collection processing unit 11 collects the configuration information of the backup source system 5 and stores it in the system configuration information database 31 (step S2, system configuration collection step). Information collected at this time includes information such as the hardware model and peripheral devices on which each software functional unit is operating, network connection information between units, information on network resources used for connection to the outside, software units This is information such as the arrangement of data on which this depends. Furthermore, in addition to the current hardware specifications, the minimum hardware specification information required for execution by each software functional unit is also included.

  Subsequently, as the system configuration information is backed up, the system information backup processing unit 12 generates a virtual hardware request list 33 that defines hardware resources necessary for system operation based on the collected system configuration information. Then, it is stored in the system backup image 32 (step S3, system restoration information generation step). In other words, in order to realize the backup source system 5 in the restore destination system 7, specific hardware models and the number of hardware necessary for the operation of the restore destination system 7, as well as specifications and interconnection performance, etc. Generate.

  Further, the system information backup processing unit 12 generates internal connection relation information 34 representing internal network connection settings between hardware units to be restored based on the system configuration information, and stores it in the system backup image 32 ( Step S4). Further, the system information backup processing unit 12 extracts from the system configuration information setting information such as an address used for connection with an external network that may not be used unconditionally at the time of restoration, the same as the backup source system 5. Then, it is stored in the system backup image 32 as the custom parameter 35 (step S5). Further, the system information backup processing unit 12 is information on the storage unit 55 on which the software function units 61 to 64 depend, specifically information on a logical unit of the storage system storing data and a mount point on the network file system. Is stored in the system backup image 32 as the data arrangement information 36 (step S6).

  Subsequently, the basic software backup processing unit 13 reads out the software necessary for the operation of the backup source system 5 and stores it as the basic software image 37 in the system backup image 32 (step S7, software backup process). At this time, the basic software image 37 is generated by directly extracting from the operating backup source system 1 or by copying necessary software from a separately prepared software library 50. However, if the equivalent to the software library 50 can be accessed at the time of restoration, the basic software image 37 may be stored with information storing only reference information for the library.

  In this way, the system back image 32 having sufficient information for reconstructing the backup source system 5 can be generated from the entire pieces of backed up information 33 to 38.

  Each backup process (system configuration collection process in step S2, software backup process in step S7, step S1) by the system configuration information collection processing unit 11, the base software backup processing unit 13, and the data backup processing unit 14 described above. The stored data backup step) may be executed in any order. In addition, each process (steps S3 to S6 (including the system restoration information generation process)) by the system information backup processing unit 12 may be executed in any order, but at least after the step system configuration information is collected (system configuration It is executed in the collecting step (after step S2).

  Next, an operation at the time of restoration will be described with reference to FIGS. First, the hardware environment restoration means 21 reads the virtual hardware request list 61 from the system backup image 32 (step S11), and checks whether the resources required here exist in the existing hardware resource data 41. (Step S12, restoration determination step). In this check, if the same hardware exists (Yes in Step S12), the process proceeds to Step S14 without any problem, and even if the identical hardware does not exist (No in Step S12), the hardware is compatible. The sex data 42 is referred to, and replaceable hardware is used (Yes in step S13). For example, if there is something with higher performance and specifications (spec) than the original hardware unit, it is used as an alternative configuration. In addition, if the original system is realized with multiple hardware, the restore destination can be configured in such a way that the single hardware can be virtually divided into performance and specifications. Substitute. Furthermore, even when hardware of different types is used, if there is hardware that can be used as alternative hardware as the required hardware, the hardware is used as an alternative configuration. In FIG. 8, the configuration corresponding to the two hardware units 53 and 54 of the backup source system 5 is replaced with one hardware unit 73 of the restore destination system 7.

  When the restore destination system 7 determines that restoration is possible (yes in step S12 or yes in step S13), the hardware configuration derived as described above is the hardware environment. The restore processing unit 21 configures the restore destination system 7 (step S14, hardware configuration restoration step). For example, in practice, in a blade server system, it is possible to automatically configure by reserving hardware resources and defining logical connections between the blades. By outputting the hardware configuration derived as described above and the connection diagram generated as described later on a paper medium or a display, an operator manually assembles the system. Also good.

  Subsequently, after the hardware configuration is completed, based on the virtual hardware configuration assigned thereto, the base software restore processing unit 25 restores the base software from the base software image 37 to the restore destination system 7 ( Step S15, software restoration step). When this is completed, as shown in FIG. 8, functional units equivalent to the software functional units 61 to 64 in the backup source system 5 are generated in the restore destination system 7 as indicated by reference numerals 81 to 84.

  Subsequently, based on the data arrangement information 36 stored in the system backup image 32, the data arrangement restoration processing unit 24 restores the data arrangement information on which the software functional units depend on the units in which the software functional units are arranged. (Step S16).

  Subsequently, the custom information setting processing unit 23 may need to change the backup source system 1 as a unique setting for the restore destination system 7 based on the information of the custom parameter 35 stored in the system backup image 32. For certain information, an inquiry is made to the operator who performs the restoration to prompt the setting. And the setting information input according to this is received (it is YES at step S17). After that, the connection relation restore processing unit 22 determines the network connection relation information by combining the set information and the internal connection information 34 that does not need to be changed, and the connection between the hardware in the restore destination system 7 The internal network settings that are related are restored (step S18).

  Thereafter, the data restore processing unit 26 restores data from the actual data back 38 in the system backup image 32 to the storage unit 75 of the restore destination system 7 (step S19, accumulated data restoration step). As a result, a system that operates in the same manner as the backup source system 5 is constructed in the restore destination system 7.

  Note that the software restoration process in step S15 and the stored data restoration process in step S19 at the time of restoration described above may be executed in any order as long as they are executed at least after the hardware configuration restoration process in step S14.

  As described above, according to the present invention, from the backup source system 5 having a plurality of hardware, accumulated data, infrastructure software for operating the system, and system configuration information indicating the system configuration are backed up. By using this, a complicated system configuration can be easily restored. Therefore, it is not necessary to prepare a redundant hardware configuration such as a hot standby method in advance, and a reliable and quick system recovery can be realized at a low cost. In particular, by backing up connection relationship information representing the connection relationship between multiple hardware components that make up the system, complex system configurations can be restored more easily and accurately, and reliability can be improved. Can do.

  Further, as described above, the internal connection relation information indicating the connection relation between the hardware constituting the backup source system 5 is backed up, and the restoration destination system 7 restores based on the hardware compatibility information. Therefore, the restoration destination system 7 having a configuration different from that of the backup source system 5 can be easily restored. Therefore, the versatility of the restore destination system 7 is enhanced, and a backup system can be realized at a lower cost.

  Here, as described above, the restoration performed using the backed up data is not necessarily executed when a failure or the like occurs in the backup source system 5. For example, a system having a function equivalent to that of the backup source system 5 can be used for copying. Thereby, a system having the same function can be easily cloned, and the system introduction cost can be reduced.

  In the above description, the backup apparatus 1 is provided with a system backup function and a restore function. However, a restore function (see FIG. 3) is provided in another information processing apparatus. It may be. For example, the processing units 21 to 26 shown in FIG. 3 are constructed in the information processing apparatus (restoration apparatus) connected to the backup apparatus 1 so that the system backup image 32 can be extracted from the backup apparatus 1. Each data 41, 42 is stored. As a result, the information processing apparatus (restoration apparatus) can execute the same restoration as the backup apparatus 1 described above.

  INDUSTRIAL APPLICABILITY The present invention can be used for backup and restoration of a computer system installed in a company or the like, and has industrial applicability.

1 is a block diagram showing the overall configuration of a system that performs backup and restore. It is a functional block diagram which shows the structure of a backup apparatus, and shows the structure for implement | achieving a backup function. It is a functional block diagram which shows the structure of a backup apparatus, and shows the structure for implement | achieving a restore function. It is a figure which shows an example of a virtual hardware request | requirement list | wrist. It is a figure which shows an example of internal connection relationship information. It is a figure which shows an example of a custom parameter. It is a figure which shows an example of data arrangement information. It is explanatory drawing which shows the operation | movement at the time of the backup of a whole system, and a restore. It is a flowchart which shows the operation | movement at the time of backup of a backup device. It is a flowchart which shows the operation | movement at the time of restoration of a backup apparatus. It is a block diagram which shows an example of the system used as backup object.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Backup apparatus 5 Backup origin system 7 Restoration destination system 10 Arithmetic apparatus 11 System configuration information collection process part 12 System information backup process part 13 Base software backup process part 14 Data backup process part 21 Hardware environment restore process part 22 Connection relation restore process Unit 23 custom information setting processing unit 24 data arrangement restoration processing unit 25 basic software restoration processing unit 26 data restoration processing unit 30 storage device 31 system configuration information database 32 system backup image 33 virtual hardware request list 34 internal connection relation information 35 custom parameter 36 Data is location information 37 Base software image 38 Actual data backup 41 Existing hardware resource data 42 Hardware compatibility data Data 50 Software Library N Network

Claims (22)

A backup device connected to a backup target system configured with predetermined hardware,
Accumulated data backup means for reading and storing the accumulated data accumulated in the backup target system;
Software backup means for operating the backup target system to read out from the system or predetermined storage means and store the software;
System configuration collection means for collecting and storing system configuration information representing the hardware configuration of the backup target system;
A backup device characterized by comprising:   The backup apparatus according to claim 1, wherein the system configuration information includes connection relationship information representing a connection relationship between a plurality of hardware configuring the backup target system.   The backup apparatus according to claim 2, wherein the connection relation information represents a connection relation between the plurality of hardware in a network constructed in the backup target system.   4. The backup apparatus according to claim 1, wherein the system configuration information includes information indicating hardware performance that can be stored in the backup target system in advance and that can realize the backup target system. .   The system configuration collection means collects and stores differential system configuration information representing a configuration that has changed in comparison with a system configuration corresponding to the system configuration information collected last time. 2. The backup device according to 2, 3 or 4.   5. A system restoration information generation unit that generates and stores virtual hardware information representing hardware necessary for a restoration destination system based on the system configuration information. Or the backup device of 5.   The system restoration information generation means generates and stores restoration destination connection relationship information representing a connection relationship between hardware necessary for the restoration destination system based on the system configuration information and the virtual hardware information. The backup device according to claim 6.   The backup device according to claim 6, wherein the virtual hardware information includes information representing hardware performance capable of realizing the restoration destination system. Storage means for storing restoration destination hardware information representing a hardware configuration provided in advance in the restoration destination system;
Based on the virtual hardware information and the restoration destination hardware information, restoration judgment means for judging whether or not the backup target system can be restored to the restoration destination system;
The backup device according to claim 6, wherein the backup device is provided. A storage unit for storing compatibility information between predetermined hardware units;
The restoration determination means determines whether or not the backup target system can be restored in the restoration destination system based on the virtual hardware information, the restoration destination hardware information, and the compatibility information.
The backup apparatus according to claim 9. Hardware configuration restoring means for restoring the hardware configuration to the restoration destination system based on the virtual hardware information;
Software restoration means for restoring the stored base software, and stored data restoration means for restoring the stored accumulated data, with respect to the restoration destination system in which the hardware configuration is restored,
11. The backup device according to claim 6, 7, 8, 9, or 10. Accumulated data backup means for reading and storing the accumulated data accumulated in the backup target system configured with predetermined hardware, and software for operating the backup target system is read from the system or predetermined storage means Software backup means for storing information, system configuration collection means for collecting and storing system configuration information representing the hardware configuration of the backup target system, and hardware necessary for the restoration destination system based on the system configuration information A restore device capable of acquiring information stored in a backup device comprising system restoration information generating means for generating and storing virtual hardware information to be represented,
Storage means for storing restoration destination hardware information representing a hardware configuration provided in advance in the restoration destination system, and restoration of the backup target system based on the virtual hardware information and the restoration destination hardware information Restoration judgment means for judging whether restoration is possible in the destination system;
A restore apparatus characterized by comprising: A storage unit for storing compatibility information between predetermined hardware units;
The restoration determination means determines whether the backup target system can be restored to the restoration destination system based on the virtual hardware information, the restoration destination hardware information, and the compatibility information.
The restoration apparatus according to claim 12, wherein: Hardware configuration restoring means for restoring the hardware configuration to the restoration destination system based on the virtual hardware information;
Software restoration means for restoring the stored software, and stored data restoration means for restoring the stored accumulated data, with respect to the restoration destination system in which the hardware configuration is restored;
The restoration apparatus according to claim 12 or 13, further comprising: A method of performing backup of the backup target system in an information processing apparatus connected to the backup target system composed of predetermined hardware,
An accumulated data backup step of reading and storing accumulated data accumulated in the backup target system;
Software backup step for reading the software for operating the backup target system from the system or a predetermined storage means, and storing the software,
A system configuration collection step of collecting and storing system configuration information representing the hardware configuration of the backup target system;
A backup method, wherein the steps are executed in an arbitrary order.   After the system configuration collection step, the information processing apparatus includes a system restoration information generation step of generating and storing virtual hardware information representing hardware necessary for the restoration destination system based on the system configuration information. The backup method according to claim 15.   The information processing apparatus or another information processing apparatus generates restoration destination hardware information representing a hardware configuration provided in advance in a restoration destination system stored in a predetermined storage unit, and is generated in the system restoration information generation step The backup method according to claim 16, further comprising: a restoration determination step of determining whether or not the backup target system can be restored to the restoration destination system based on the virtual hardware information that has been obtained. After the system restoration information generation step,
A hardware configuration restoring step in which the information processing apparatus or another information processing apparatus restores a hardware configuration to a restoration destination system based on the virtual hardware information;
A software restoration step of restoring the stored software in any order with respect to the restoration destination system whose hardware configuration has been restored in the hardware configuration restoration step, and restoring the stored accumulated data A stored data restoration process,
18. The backup method according to claim 16 or 17, further comprising: In the information processing device connected to the backup target system consisting of predetermined hardware,
Accumulated data backup means for reading and storing accumulated data accumulated in the backup target system;
Software backup means for operating the backup target system to read out from the system or predetermined storage means and store the software;
System configuration collection means for collecting and storing system configuration information representing the hardware configuration from the backup target system;
A program to realize In the information processing apparatus,
System restoration information generating means for generating and storing virtual hardware information representing hardware necessary for the restoration destination system based on the system configuration information;
The program of Claim 19 for implement | achieving. In the information processing apparatus,
Based on the restoration destination hardware information representing the hardware configuration provided in advance in the restoration destination system stored in the predetermined storage unit, and the virtual hardware information generated by the system restoration information generation unit , Restoration judging means for judging whether or not the backup target system can be restored to the restoration destination system,
The program of Claim 20 for implement | achieving. In the information processing apparatus,
Hardware configuration restoring means for restoring the hardware configuration to the restoration destination system based on the virtual hardware information;
Software restoration means for restoring the stored base software, and stored data restoration means for restoring the stored accumulated data, with respect to the restoration destination system in which the hardware configuration is restored,
The program according to claim 20 or 21, for realizing the above.

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