A data security protection system and power application system data protection method based on asynchronous remote mirroring
An application system and data protection technology, which is applied in the direction of data error detection, electrical digital data processing, and response error generation, can solve the problem of high network bandwidth requirements, long delays, and impact on storage system performance. To achieve the effect of ensuring data security, short recovery time, and reducing costs
Active Publication Date: 2019-07-26
INFORMATION COMM COMPANY STATE GRID SHANDONG ELECTRIC POWER +1
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Problems solved by technology
However, the round-trip propagation of this scheme causes a long delay, which greatly affects the performance of the storage system.
Moreover, in order to ensure synchronous replication, the transmission distance cannot be too long, the network bandwidth requirement is high, and the cost may exceed the acceptable range
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[0038] Such as figure 1 As shown in the figure, a remote mirror is built for the storage system. When the main data center suffers from man-made or natural disasters, the data IO can be immediately switched to the mirror system to ensure the normal operation of the business system. The specific system structure includes:
[0039] (1) Log module
[0040] The log module records all modifications to metadata, including operations such as resize, snapshot, trim, create, and delete. The log module records each operation as an event, and then the system can use the information recorded in the log to replay all events in chronological order to obtain a complete data status. But the log module will only record metadata changes, not the data itself.
[0041] (2) Snapshot module
[0042] The snapshot module can take a snapshot of the data. Through the mechanism of cow, the creation of the snapshot basically does not need to consume time and cost. If a data is snapshotted, all new d...
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The invention discloses a data security protection system based on an asynchronous remote image. The system comprises a log module, a snapshot module, a monitoring module and a replay module, wherein the log module completes modification of local data; the snapshot module takes a snapshot for the local data through a cow mechanism; the monitoring module constantly checks whether a master system has a new data change; and the replay module calls logs and data of the master system and performs replay operation on a slave system. The invention furthermore provides an electrical application system data protection method. The method comprises the steps that the monitoring module is started; the monitoring module notifies the replay module to perform data synchronization when discovering data update of the master system; and the replay module calls latest log information and performs replay and metadata synchronization; data in the snapshot in the master system is compared with data in the slave system, and data synchronization is performed. The remote image is constructed for a storage system, when a master data center is subjected to an artificial or natural disaster, data IO can be immediately switched into an image system, and therefore normal operation of a business system is guaranteed.
Description
technical field [0001] The invention relates to a method for ensuring data security when a power application system suffers from data damage, or even a data center suffers from a disaster. Furthermore, it involves a data security protection system based on asynchronous remote mirroring in the power application system, and a method to ensure data security when the system suffers from data damage or even a data center disaster. Background technique [0002] When the information system is seriously faulted or paralyzed due to man-made or natural reasons, it is of great significance to ensure the security of user data. At present, most business application systems store data in distributed storage, but the current distributed storage lacks a reasonable and effective data protection mechanism. Most distributed storage systems use the following data protection mechanisms: [0003] (1) Local data backup. This solution will regularly back up the system data. If the system fails, ...
Claims
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IPC IPC(8): G06F11/14
CPCG06F11/1448G06F11/1464
Inventor 田兵严莉刘范范曲延盛王丞远汤耀庭韩圣亚林鹏赵晓张悦赵忱李刚赵阳宫淑卿付本娟黄振张凯汤琳琳朱韶松刘子雁
Owner INFORMATION COMM COMPANY STATE GRID SHANDONG ELECTRIC POWER