Existing database, e-mail and enterprise content management systems may provide support for high-availability data, such as, for example, data for automatic teller machine (ATM) networks, data for online stores and e-commerce applications, and data for continuously available systems, such as, for example e-mail and document management systems.
Systems, which rely on high-availability data, provide near continuous access to a current version of the high-availability data. Users of such systems may purchase, deploy, and manage separate systems, which may provide a different management experience, for maintaining previous versions of the data, such as, for example, historical, or backup data. The backup data may be kept for a variety of reasons, such as, for example, business continuity, logical error recovery, major software failures, malicious mischief (for example, a rogue administrator), and historical document retention, as well as other reasons.
This Summary is provided to introduce a selection of concepts in a simplified form that is further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
In embodiments consistent with the subject matter of this disclosure, a single integrated system may provide a single set of functionality and a single management experience for maintaining one or more high-availability copies of data when changes occur to the high-availability data, in near real-time, and for protecting historical data by replicating, and later incorporating, different versions of the data to one or more backup copies of the data at different points in time.
In various embodiments, one type of replication technology may be used in the single integrated system to replicate the data for one or more high-availability copies and to replicate the data to one or more backup copies of the data. The single integrated system may be a native integrated system for replicating data to a high-availability copy of the data and for replicating the data for backup, or historical protection, purposes.
In order to describe the manner in which the above-recited and other advantages and features can be obtained, a more particular description is described below and will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments and are not therefore to be considered to be limiting of its scope, implementations will be described and explained with additional specificity and detail through the use of the accompanying drawings.
Embodiments are discussed in detail below. While specific implementations are discussed, it is to be understood that this is done for illustration purposes only. A person skilled in the relevant art will recognize that other components and configurations may be used without parting from the spirit and scope of the subject matter of this disclosure.
Embodiments consistent with the subject matter of this disclosure may provide a single integrated system for maintaining one or more high-availability copies of data by replicating the high-availability data when changes occur to the high-availability data in near real-time and for protecting historical data by replicating the data to a backup copy of the data at different points in time, thereby creating backup copies of different versions of the data.
The single integrated system may use a same replication technology for replicating high-availability data and replicating the data for backup copies of the data. The single integrated system may provide a single management experience with respect to replicating the high-availability data and replicating the data for the backup copies of the data. In some embodiments, the system may include multiple processing devices, each having associated high-availability data, an associated copy of the high-availability data, and/or backup data. Further, each of the processing devices may communicate with others of the processing devices via a network.
Embodiments of the single integrated system may include a native integrated system for maintaining high-availability data by replicating the high-availability data, and for replicating data for backup, or historical, purposes. The single integrated system may further include a single set of functions for maintaining high-availability copies of the high-availability data and for replicating the high-availability data for historical data protection purposes.
Network 102 may be a single network or a combination of networks, such as, for example, the Internet, or other networks. Network 102 may include a wireless network, a wired network, a packet-switching network, a public-switched telecommunications network, a fiber-optic network, other types of networks, or any combination of the above.
Processing devices 104, 106, 108 may be desktop personal computers (PCs), notebook PCs, servers, server farms, or other types of processing devices associated with high-availability data, a copy of the high-availability data, or a backup copy of the high-availability data. Processing devices 104, 106, 108 may communicate with one another via network 102.
The operating environment of
Processor 220 may include at least one conventional processor or microprocessor that interprets and executes instructions. Memory 230 may be a random access memory (RAM) or another type of dynamic storage device that stores information and instructions for execution by processor 220. Memory 130 may also store temporary variables or other intermediate information used during execution of instructions by processor 220. ROM 240 may include a conventional ROM device or another type of static storage device that stores static information and instructions for processor 220. Storage device 250 may include a hard disc and corresponding drive, or other type of storage device for storing data, such as, for example, high-availability data, a copy of high-availability data, or a database and/or instructions for processor 220. Communication interface 270 may permit processing device 200 to communicate via a network wirelessly, or through a cable.
Processing device 200 may perform functions in response to processor 220 executing sequences of instructions contained in a tangible machine-readable medium, such as, for example, memory 230, ROM 240, storage device 250 or other media. Such instructions may be read into memory 230 from another machine-readable medium or from a separate device via communication interface 270.
When configuring the system, a group ID of a group of administrators responsible for administering a high-availability production database and one or more high-availability copies of the production database may be entered 310. Similarly, a group ID of a group of administrators responsible for administering one or more backup, or historical, copies of the production database may be entered 314.
One security problem, which may occur in systems for maintaining a high-availability copy of a database and backup, or historical, copies of a database is called a rogue administrator problem. As an example of the rogue administrator problem, an administrator responsible for maintaining the high-availability copy of the database and the backup, or historical, copies of the database may maliciously make changes to, or destroy, both the high-availability copy of the database and the backup copy (or copies) of the database, thereby making restoration of the database difficult, if not impossible. To avoid the rogue administrator problem, as well as other security problems, only the group of administrators responsible for administering the one or more high-availability copies of the database may have administrative access to the one or more high-availability copies of the database, and only the group of administrators responsible for administering the backup copies of the database may have administrative access to the backup copies of the database. The two groups of administrators may be completely different from one another. Thus, administrative access to the one or more high-availability copies of the database may be isolated from administrative access to the one or more backup copies of the database.
Although exemplary display 300 refers to a database and copies of the database, in other embodiments, the data may not be included in databases. For example, instead of having a database, the system may have production data. Similarly, instead of having a high-availability copy of the database and backup copies of the database, the system may have a high-availability copy of the production data and backup copies of the production data.
If the processing device determines that the processing device is not maintaining a high availability copy of the production data, then the processing device may assume that the processing device is maintaining one or more backup copies of the production data and the processing device may copy information with respect to changes made to the production data (act 404). The processing device may then determine whether changes are to be incorporated now into one of the one or more backup copies of the production data (act 406). In some embodiments, the processing device may determine whether the changes are now to be incorporated into one of the one or more backup copies of the production data by checking a historical, or backup, data protection configuration, which may include a lag time, or a backup schedule. When the processing device determines that the changes are to be incorporated now into one of the one or more backup copies of the production data, the processing device may incorporate the changes into the one of the one or more backup copies of the production data (act 408). Acts 404-408 may then be repeated.
If the processing device determines, during act 402, that the processing device is maintaining a high availability copy of the production data, then the processing device may copy information regarding changes made to the production data (act 410). The processing device may then incorporate the changes to the production data into the high availability copy of the production data as soon as possible (act 412). Acts 410-412 may then be repeated.
In some embodiments, a processing device may be responsible for maintaining both a high availability copy of the production data and a backup copy of the production data. In such embodiments, a process, such as the process illustrated by
Further, in some embodiments, the production data, the high availability data, and the backup copy of the production data may be stored in respective databases.
The processing device may then replicate information to the second processing device regarding the changes to the production data (act 504).
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms for implementing the claims.
Although the above descriptions may contain specific details, they are not be construed as limiting the claims in any way. Other configurations of the described embodiments are part of the scope of this disclosure. Further, implementations consistent with the subject matter of this disclosure may have more or fewer acts than as described with respect to
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