Patent ID: 7072954
Filing Date: 2006-07-04
Classification: H04L

Abstract:
1. A network management system comprising: a plurality of nodes; a recording medium apparatus operable to store data, said recording medium apparatus being connected to said nodes through a network; a data manager operable to manage physical information of the data of said recording medium apparatus, distinctive information and security information concerning the data, and system configuration information of the network; and an access manager operable to manage access to the data of said recording medium apparatus, said access manager being operable to judge whether or not to approve the access from the information of said data manager, a kind of access, a band state of the network and a band state of an interface of said recording medium apparatus, and to secure a transmission band for accessing the data, when the access is approved, wherein said nodes are operable to query said access manager, in accessing said recording medium apparatus, whether or not the access can be approved, and to act in accordance with the response of said access manager, wherein said access manager is operable to investigate an access state of said recording medium apparatus and to send access approval to a querying node, if: (a) a preceding access is a write access, and a present access request is a read access, (b) the preceding access is a read access, or (c) no preceding access exists; if a first access band is secured in an I/O band of said recording medium apparatus; and if a second access band is secured in a band of the network, and wherein the querying node that has received access approval from said access manager is operable to commence access to the data.