UbiqStor: A Remote Storage Service for Mobile Devices

Abstract

In Ubiquitous computing environment the mobile devices such as PDAs necessarily connect to remote storage servers. We present an iSCSI caching system that localizes iSCSI target to overcome the shortcomings of iSCSI performance dropping sharply as the latency increases.

Mobile storage augmentation in mobile cloud computing: Taxonomy, approaches, and open issues

“…Reducing latency, establishment of trust, alleviating portability, and preventing energy dissipation are among promising advantages of SAMI. Similar to UbiqStor [45], SAMI exploits a multi-tier architecture in its design. However, SAMI provides higher trust to mobile service consumers by leveraging resources of MNOs beside cloud and adjacent MNO dealers.…”

“…Dropbox, 5 Google Docs, 6 Amazon S3, iCloud, 7 and SkyDrive 8 are among the renowned cloud storage services that facilitate the storage, sharing, and synchronization of data for desktop and mobile device users. Several efforts such as UbiqStor [45] and MiSC [48] tried augmenting mobile devices using remote storage servers. The utilization of non-proximate cloud storage services over an Internet channel imposes increased WAN latency and decreased security.…”

“…Tiering: Tiering refers to the number of layers a mobile device passes over to exploit cloud services. Approaches such as [45,15] are referred to as multi-tier. For example, the three-tier infrastructure of SAMI [15] encompasses distant cloud resources, proximate MNOs, and MNO-authorized dealers in the vicinity.…”

“…However, the MOMCC architecture shortcomings, such as the restricted computing of host devices, the necessity for fine-grained services, and the dependency on networking impede its employment for enterprise applications and in offline mode. UbiqStor UbiqStor [45] is an internet Small Computer System Interface (iSCSI) cache server that reduces the response delay time between mobile users and storage servers. The access to remote fixed storage servers via the nearest immobile UbiqStor server as a hybrid, multi-tier solution provides mobile clients energy-efficient access to rich storage capacity by eliminating long WAN latency in case of direct access to non-proximate storage servers.…”

iSCSI Protocol Adaptation with NAS System via Wireless Environment

“…Due to their mobility, mobile appliances should be small and they use a flash memory to store the data. However, it is still difficult to store multimedia data such as mpg, mp3, etc and install large software such as database engines [2]- [5]. To alleviate these problems and access mass storage an iSCSI based NAS Cluster system with mobile appliance can be propose.…”