In this paper we present a comparative study of two schemes to provide survivability for guaranteed QoS connections in a possible Next Generation Internet network architecture. In the first scheme a QoS connection is provided standby backup resources on a disjoint path by reserving resources on both the working and backup path. In order to reduce the amount of backup resources required a method...

This white paper highlights integration features implemented in EMC Avamar with EMC Data Domain deduplication storage systems to allow high-speed data backup directly to Data Domain systems. The components outlined in this paper will provide IT backup administrators & consultants with a technical foundation to architecting efficient combined data deduplication backup solutions. February, 2014

<span>In wireless sensor networks (WSNs), energy, connectivity, and coverage are the three most important constraints for guaranteed data forwarding from every node to base station. Due continuous sensing transmission tasks, nodes deplete more quickly hence they seek help of nodes, called relay nodes. However, a given set finding optimal locations place is very challenging problem. Moreov...

Current practice of backing up data is based on using backup tapes and remote locations for storing data. Nowadays, with the advent of cloud computing a new concept of database backup emerges. The paper presents the possibility of making backup copies of data in the cloud. We are mainly focused on performance and economic issues of making backups in the cloud in comparison to traditional backup...

In this paper we present new concepts to resolve ECU (Electronic Control Unit) failures in FlexRay networks. Our approach extends the FlexRay bus schedule by redundant slots with modifications in the communication and slot assignment. We introduce additional backup nodes to replace faulty nodes. To reduce the required memory resources of the backup nodes, we distribute redundant tasks over diff...

A mesh-restored lightpath in an optical network has a primary route and a diversely routed backup route. The wavelength channels on the primary route of a mesh-restored lightpath are dedicated for that lightpath whereas the wavelength channels on the backup route are shared among different mesh-restored lightpaths. Wavelength channels are shared in a way that ensures restoration of all lightpat...

ln this paper, we propose a fast restoration mechanism for virtual path-based ATM networks. Given an ATM network topology, the capacity of each physical link, and the primary virtual path (VP) layout at system initialization, the proposed mechanism pre-assigns to each primary VP one backup VP such that (PI) the failure of a single node/link does not lead to the failure of both the primary and b...

In this article, we introduce the concept of backup plans as a motivational construct, defined as alternative means to an end that are intentionally developed but are not initially (or ever) used. We posit that backup plans change the way that a person pursues a goal, as well as the likelihood of achieving it, even if the backup plans are never used. In some cases, backup plans are a safety net...

Communication reliability is a desired property in computer networks. One key technology to increase the reliability of a communication path is to provision a disjoint backup path. One of the main challenges in implementing this technique is that two paths that are disjoint at the IP or overlay layer may share the same physical links. As a result, although we may select a disjoint backup path a...

Data-protection class workloads, including backup and long-term retention of data, have seen a strong industry shift from tape-based platforms to disk-based systems. But the latter are traditionally designed to serve as primary storage and there has been little published analysis of the characteristics of backup workloads as they relate to the design of disk-based systems. In this paper, we pre...