| 摘要 |
The invention relates to a device and a method for data mirroring, which can be used in particular for rapid data backup and reconstruction without losing any information. The method guarantees the reconstruction of the last error-free status of the original database present in a real time computer system. The method is characterised by a rapid switchover to a mirror computer system and as a result of its independence of the locations of the individual computer systems, it offers a high degree of protection against fire, floods, lightening strikes, vandalism and other disasters. In addition, the method has the following advantages: the transfer times are reduced by data compression and the security of the data is increased by an encrypted data transfer; structural modifications to the original database are also duplicated and any errors that occur are automatically identified and analysed. Measures for eliminating the errors are carried out on the basis of said identification and analysis. |
