Patent ID: 7933976
Filing Date: 2011-04-26
Classification: G06F

Abstract:
1. A computer implemented method for moving a software partition from an origination network file system client data processing system to a destination network file system client data processing system, the computer implemented method comprising: responsive to receiving a request to perform a checkpoint operation on a software partition, gathering network file system related mount information for the software partition; unblocking determined ports of a network; synchronizing unwritten data on the origination network file system client data processing system with a remote network file system server; re-blocking the determined ports of the network; generating a checkpoint file; storing the checkpoint file; sending the checkpoint file to the destination network file system data processing system; responsive to receiving a request to perform a restart operation on the software partition, reading the checkpoint file, wherein reading the checkpoint file comprises reading each mount entry in the checkpoint file; performing, for each mount entry in the checkpoint file, steps of: blocking the connections to the portmap and rpc.mountd ports of a network file system server; and blocking remaining unblocked connection ports.