Being stored inside the group of data servers over manner and the system null multiple data centers

摘要

Topic In the data server of plural data centers, method in order to keep the data integrity of the plural copies of the data, the computer program product and the system are offered.Solutions In the data server of plural data centers, method in order to keep the data integrity of the plural copies of the data, the computer program product and the system, the one of them thing and the data which house the data inside the main data server who is selected from thing and the data server who keep the cluster of the catalog server who is selected as the master catalog server, one which is selected from the data server or thing and the data status information which duplicate in plural backup detasaba thing and the data status information which are recorded to the master catalog server duplication to the cluster of the catalog serverWhen thing and the main data server whom it does break down, it includes with the fact that the cluster of the data server and the catalog server is renewed. Selective figure Figure 1