Patent ID: 8135839
Filing Date: 2012-03-13
Classification: G06F

Abstract:
1. A method of allowing access to a shared resource, said method comprising: receiving a first request for a file in a first portion of said shared resource, said first request containing a first token value from a first client system; receiving a second request for said file in a second portion of said shared resource, said second request containing said first token value from said first client system one of said first portion or said second portion being a primary storage location for said file and a remaining portion being a secondary storage location for said file; performing a first comparison in said first portion of said shared resource based on more than one request being received in said first portion of said shared resource, said first comparison comparing said first token value with a second token value received from a second client system, said token value comprises a globally unique identifier value; and issuing a no-lock response to said second client system from said first portion of said shared resource based on said first token value comparing favorably against said second token value and issuing a lock response to said first client system from said second portion based on said first token value comparing favorably against said second token value, both said first portion and said second portion being required in order for said first client system to access said shared resource.