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With the fast increased application of SAN, it is required that the characteristics of SAN, such as its heterogeneity, sites' difference, should be transparency to the applications to eliminate the data isolations, realize the simple and uniform management of all storage devices and ensure the security of the data. This paper analyzes realization principle of VxVM virtualization heterogeneity and...
About ten years ago the trend of development of Ethernet-based field buses began. Now a (large) number of them are standardized within IEC 61158, a variety of products and a variety of installed systems do exist. Beside the usage of Ethernet as a fast physical layer it also brought the entire TCP/UDP/IP or Internet protocol suite down to the shop floor, establishing the general opportunity to provide...
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