Patent ID: 8117244

Claim:
In a switched file system having a file switch in communication with a plurality of file servers including at least a source server and a destination server, where the source server manages a source native volume, a method for non-disruptive migration of the native volume from the source server to the destination server, the method comprising: converting, by the file switch, the source native volume to a native with metadata volume using a local file system managed by the file switch; converting, by the file switch, the native with metadata volume to a mirrored native with metadata volume, wherein the converting takes place in both the source server and the destination server, the destination server including a mirror copy of the native with metadata volume; removing, by the file switch, the source server from the mirrored native with metadata volume, wherein the removing includes physically deleting and disconnecting the source server from the mirrored native with metadata volume; and converting, by the file switch, the mirror copy of the native with metadata volume on the destination server to a destination native volume on the destination server.