Patent ID: 8209343
Filing Date: 2012-06-26
Classification: G06F

Abstract:
1. A method for managing file operations in a system including a host computer having one or more virtual machines configured therein, a central storage unit connected to the host computer along a first path, and a switching layer computer connected to the host computer along a second path, the method comprising: maintaining a partial namespace map using the host computer, wherein a primary namespace map is maintained by the switching layer computer; receiving a metadata file operation from a virtual machine; routing, by the host computer, the metadata file operation to the switching layer computer through the second path; receiving a mapping of a filename specified in the metadata file operation to a filename recognized by the central storage unit using the primary namespace map in response to the routing of the metadata file operation to the switching layer computer; updating, by the host computer, the partial namespace map based on said mapping; receiving a data file operation from the virtual machine; and routing, by the host computer, the data file operation to the central storage unit along the first path using the updated mapping in the partial namespace map.