Patent ID: 8244781
Filing Date: 2012-08-14
Classification: G06F,H04L

Abstract:
1. A method comprising: providing a network having a storage virtualization system, a first NAS system and a second NAS system, wherein the storage virtualization system, the first NAS system, and the second NAS system use a first file system protocol, and wherein the first NAS system stores at least one data file and an associated file attribute not recognized by the first file system protocol; executing, by the storage virtualization system, a query using a second file system protocol that recognizes the file attribute of the at least one data file; and if the at least one data file has a the name permitted by the first system protocol and not permitted by the second file system protocol, then creating a hard link to the at least one data file, wherein a the hard link is given a name that is permitted by the first and second file system protocols, and migrating, by the storage virtualization system using the first file system protocol, the at least one data file and the associated file attribute from the first NAS system to the second NAS system; if the at least one data file has a name permitted by the second file system protocol, then migrating, by the storage virtualization system using the first file system protocol, the at least one data file and the associated file attribute from the first NAS system to the second NAS system.