Industrial Technology Research Institute

Wen-Shyang Hwang

Jun-Yao Wang

Ce-Kuen Shieh

Yun-Shuai Yu

Che-Shiun Ho

Meng-Yu Lee

Tsung-Lin Tsai

Ji-Feng Chiu

Shou-Jen Wey

Wen-Fong Wang

Chin-Pei Su

Hsian-An Chang

Sheng-Hsiung Lin

Ching-Hung Lin

A snapshot mechanism and a method thereof used in a data processing system are provided to backup snapshot data. The snapshot mechanism includes a snapshot storage unit and a buffer storage unit, wherein the snapshot storage unit is used as a unit for storing data generated after a target storage unit snapshots data and accordingly generating a plurality of snapshot management data. In addition, the buffer storage unit temporarily stores new data and flushes the data to the target storage unit in predetermined time interval. According to the snapshot management data, the target storage unit can be rolled back or rolled forward to the status before a predetermined time.

Snapshot mechanism and method thereof

Communication devices and methods are proposed for providing communication channel. In one example, devices and methods are capable of reaching one or more terminals that are not in a public network. In addition, depending on the network or the networks that the terminals are located, some examples may be capable of establishing a less indirect or a direct communication channel between two terminals after they communicate through an intermediate system. In another example, a triggering packet may be sent to provide a binding at an interface of a private network, such as an NAT, thereby reducing or eliminating communication through a relay server.

System and method for providing a communication channel

Disclosed is a method and a system for remote mirror data backup over a network. The system comprises a local domain site and at least one remote domain site, wherein each site has one domain mirror agent and one storage server system thereon. Each storage server system includes one or more storage servers, and one of the domain mirror agents is predefined as the master mirror agent. With such a remote mirror system, the method performs the operations of virtual mirror device allocation, mirror operation, data consistency check, third mirror allocation, and recovery of local storage device. The present invention expands the conventional logical volume management (LVM) to a network environment, effectively improving the backup/recovery capability of remote mirroring.

System and method for remote mirror data backup over a network

The present invention discloses a multi-priority media access control method for a multi-channel slotted ring network. In the slotted ring networks, each node has one tunable transmitter and one fixed receiver for data channels, and is able to inspect slot status on all channels. The header slot format defines the slot priorities on ring networks and limits which packets can be transmitted through the slots. By assigning slot priority based on two thresholds to raise and lower slot priority, multiple priority packets can be transmitted.

Multi-priority media access control method for multi-channel slotted ring networks

Growing community of inventors

Kaohsiung County, Taiwan

Wen-Shyang Hwang