The majority of floral displays simultaneously broadcast signals from multiple sensory modalities, but these multimodal displays come at both a metabolic cost and an increased conspicuousness to floral antagonists. Why then do plants invest in these costly multimodal displays? The efficacy backup hypothesis suggests that individual signal components act as a backup for others in the presence of...

Recovery and Backup system in which the process involves that copying and archiving of data on different cloud server, so that this data is used to recover the unique data, afterward a loss event. Purpose of backup is to recover data after its loss and to improve data from a past time. In backup systems, the fragments of every data file are physically distributed over multiple servers, which in...

Today's growth of data in IT environments, the IT managements efforts and investments are getting raises in proportion with Data Center expansion, providing data security, adhering to the compliance policies, cooling expanses and increase in staff to manage Data Center. Deduplication is a data reduction techniques where only unique data will be stored as part of backup .Reduction in the size of...

Workflow management systems (WFMS) support the modeling, coordinated execution and monitoring of business processes within an organization. In particular, very large workflow management systems are used in organizations with several thousand users, hundreds of thousands of process instances, and several thousand sites, all distributed over wide geographic areas. In these environments, failure o...

In this paper, we design and evaluate algorithms for fast recovery from link failures in a smart grid communication network, addressing all three aspects of link failure recovery: (a) link failure detection, (b) algorithms for computing backup multicast trees, and (c) fast backup tree installation. To address (a), we design link-failure detection and reporting mechanisms that use OpenFlow to de...

We describe Arrow, an efficient, safe data backup system for computer networks. Arrow employs techniques of delta compression (or deduplication) to achieve efficient storage and bandwidth utilization, and collision-resistant hashing and error-correction coding to protect against and correct storage errors. keywords: content-addressable storage; error-correcting storage systems; data backup; ded...

A Network Service Provider (NSP) operating a label-switched networks such as ATM or Multi-Protocol Label Switching (MPLS) networks, sets up end-to-end bandwidth-guaranteed Label-Switched Paths (LSPs) to satisfy the connectivity requirements of its client networks. To make such a service highly available, the NSP may set up one or more backup LSPs for every active LSP. The backup LSPs are activa...

For most businesses, backup is a daily operation that needs to reliably protect diverse digital assets distributed across the enterprise. Ef ciently processing ever increasing amounts of data residing on multiple desktops, servers, laptops, etc., and providing dynamic recovery capabilities becomes a high priority task for many IT departments. Driven by the advances in cloud computing and Softwa...

In this paper we propose the concept of an end-to-end (e2e) SelfProtecting Multi-Path (SPM) as a protection switching mechanism that may be implemented, e.g., in Multiprotocol Label Switching (MPLS) networks. In case of local outages, resilient networks redirect the traffic from a failed link over an e2e backup path to its destination. In this case, Quality of Service (QoS) can only be provided...

DSR algorithm is applied to selects best path for communication between two nodes in a highly dynamic environment. As highly dynamic environment changes frequently, the probability of breakage of established path is high in such environment. Every time when established path breaks, a new route has to be discovered for communication between the nodes. In order to avoid path discovery every time,...