This paper presents a recovery-conscious framework for improving the fault resiliency and recovery efficiency of highly concurrent embedded storage software systems. Our framework consists of a three-tier architecture and a suite of recovery conscious techniques. In the top tier, we promote the fine-grained recovery at the task level by introducing recovery scopes to model recovery dependencies...

In this article, we develop a conceptual model of adaptive versus proactive recovery behavior by self-managing teams (SMTs) in service recovery operations. To empirically test the conceptual model a combination of bank employee, customer, and archival data is collected. The results demonstrate support for independent group-level effects of intrateam support on adaptive and proactive recovery be...

Recovering deleted or hidden data is among most important duties of forensics investigators. Extensive utilisation of smartphones as subject, objects or tools of crime made them an important part of residual forensics. This chapter investigates the effectiveness of mobile forensic data recovery tools in recovering evidences from a Samsung Galaxy S2 i9100 Android phone. We seek to determine the ...

Self-protecting systems require the ability to instantaneously detect malicious activity at run-time and prevent execution. We argue that it is impossible to perfectly self-protect systems without false positives due to the limited amount of information one might have at run-time and that eventually some undesirable activity will occur that will need to be rolled back. As a consequence of this,...

Compressed Sensing (CS) is a signal acquisition approach aiming to reduce the number of measurements required to capture a sparse (or, more generally, compressible) signal. Several works have shown significant performance advantages over conventional sampling techniques, through both theoretical analyses and experimental results, and have established CS as an efficient way to acquire and recons...

A PIM-SM-built multicast tree must be restructured/recovered when the underlying unicast routing tables change. In this article we describe the PIM-SM recovery mechanisms and evaluate the recovery performance, showing its dependence on a range of network and session parameters. Our results show that a significant recovery performance improvement is possible if the multicast recovery is immediat...

An early recovery protocol that was investigated at length and is currently implemented in most commercial Distributed Database Management System products is the two-phase commit protocol. However, there is one main drawback in using this, namely blocking, that is, operational sites having to wait for the recovery of a failed site in order to complete a transaction. The two-phase commit protoco...

This report deals with the design and evaluation of a \two-level" failure recovery scheme for distributed systems. In our previous work 30, 32], we motivated a \two-level" recovery approach that tolerates the more probable failures with a low overhead, and less probable failures with possibly higher overhead. The two-level approach can achieve a smaller overhead as compared to traditional recov...

In this paper an analysis on the oversampling data recovery circuit is presented. The input waveform is assumed to be non-return-zero (NRZ) binary signals. A finite Markov chain model is used to evaluate the steady-state phase jitter performance. Theoretical analysis enables us to predict the input signal-to-noise ratio (SNR) versus bit error rate (BER) of the oversampling data recovery circuit...