Virtualized logical server cloud providing non-deterministic allocation of logical attributes of logical servers to physical resources
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United States of America Patent
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Apr 12, 2005
Grant Date -
Mar 13, 2003
app pub date -
Mar 18, 2002
filing date -
Sep 5, 2001
priority date (Note) -
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Abstract
A virtualized logical server cloud that enables logical servers to exist independent of physical servers that instantiate the logical servers. Servers are treated as logical resources in order to create a logical server cloud. The logical attributes of a logical server are non-deterministically allocated to physical resources creating a cloud of logical servers over the physical servers. Logical separation is facilitated by the addition of a server cloud manager, which is an automated multi-server management layer. Each logical server has persistent attributes that establish its identity. Each physical server includes or is coupled to physical resources including a network resource, a data storage resource and a processor resource. At least one physical server executes virtualization software that virtualizes physical resources for logical servers. The server cloud manager maintains status and instance information for the logical servers including persistent and non-persistent attributes that link each logical server with a physical server.
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