An intermediate target for quick-relay of remote storage to mobile devices

Requests for application services that require large data space such as multimedia, game and database[1] have greatly increased. Nowadays those requests locomote for various services using mobile devices. However, mobile devices have difficulty in sustaining various services as in a wired environment, due to the storage shortage of the mobile device. The research[5] which provides remote storage service for mobile appliances using iSCSI has been conducted to overcome the storage shortage in mobile appliances. In research we found that when iSCSI was applied to mobile appliances, iSCSI I/O performance dropped rapidly if a iSCSI client had moved from the server to a far away location. It occurred due to the specific character of iSCSI, which is very sensitive to delay time. In this paper, we suggest an intermediate target server that localizes iSCSI target to achieve a breakthrough against the shortcomings of iSCSI performance dropping sharply as latency increases when mobile appliances recede from a storage server.