Patent ID: 6122629
Filing Date: 2000-09-19
Classification: G06F,Y10S

Abstract:
A method for providing data integrity level one protection to changes made to a file against the loss of a node within a computer cluster having at least one server node and at least two client nodes, the method comprising the steps of:storing a copy of information from the file in a client cache of a first client node of the at least two client nodes, wherein the information stored in the client cache can be accessed by processes running on the first client node;storing a copy of information from the file in a client cache of a second client node of the at least two client nodes, wherein the information stored in the client cache can be accessed by processes running on the second client node;executing a file change to the information stored in the client cache of the first client node and storing the file change in the client cache of the first client node;asynchronously forwarding the file change from the client cache of the first client node to the at least one server node;performing a filesync operation, wherein the filesync operation cause the server node to update the information in the file by including the file change.