Mission reliability, cost and time for cold standby computing systems with periodic backup

G Levitin, L Xing, BW Johnson… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
Life critical applications like space missions and flight controls require their computing
systems to be equipped with some fault-tolerance mechanism to meet stringent reliability …

Cold standby systems with imperfect backup

G Levitin, L Xing, Y Dai - IEEE Transactions on Reliability, 2015 - ieeexplore.ieee.org
Cold standby redundancy is a widely-applied design strategy to achieve high system
reliability in numerous applications. To facilitate an effective system recovery in case of an …

Optimal Backup Distribution in 1-out-of- Cold Standby Systems

G Levitin, L Xing, Y Dai - IEEE Transactions on Systems, Man …, 2014 - ieeexplore.ieee.org
This paper considers nonrepairable 1-out-of-N: G cold standby (CS) systems subject to
uneven backup actions as well as dynamic backup and retrieval times. In such systems, only …

Heterogeneous 1-out-of-N warm standby systems with dynamic uneven backups

G Levitin, L Xing, Y Dai - IEEE Transactions on Reliability, 2015 - ieeexplore.ieee.org
In this paper, mission reliability, expected mission completion time, and cost of non-
repairable 1-out-of-N: G warm standby sparing systems subject to uneven backup actions …

Non-Homogeneous 1-Out-of- Warm Standby Systems With Random Replacement Times

G Levitin, L Xing, Y Dai - IEEE Transactions on Reliability, 2015 - ieeexplore.ieee.org
In standby systems, when an online working element fails, a replacement procedure is
initiated to activate a standby unit which will take over the mission task to sustain the system …

Optimal replacement and reactivation in warm standby systems performing random duration missions

G Levitin, L Xing, Y Xiang - Computers & industrial engineering, 2020 - Elsevier
Reliability modeling and optimization of warm standby systems have attracted considerable
research attentions in the past decade due to their wide use in diverse critical applications …

Preventive replacements in real-time standby systems with periodic backups

G Levitin, L Xing, Y Dai - IEEE Transactions on Reliability, 2015 - ieeexplore.ieee.org
This paper models a real-time warm standby system that has to accomplish a specified
amount of task by a hard deadline. The system is subject to corrective replacements (CRs) …

Reliability of non-coherent warm standby systems with reworking

G Levitin, L Xing, Y Dai - IEEE Transactions on Reliability, 2014 - ieeexplore.ieee.org
In this paper we model and analyze non-repairable 1-out-of-N: G warm standby systems
subject to periodic backups and dynamic reworking. Particularly, in such systems, a standby …

Optimizing computational mission operation by periodic backups and preventive replacements

G Levitin, L Xing, Y Dai - IEEE Transactions on Systems, Man …, 2017 - ieeexplore.ieee.org
This paper models a warm standby system where a single element is online performing a
specified mission task (eg, a computing task) and subject to corrective replacement (CR) by …

Cold vs. hot standby mission operation cost minimization for 1-out-of-N systems

G Levitin, L Xing, Y Dai - European Journal of Operational Research, 2014 - Elsevier
It is well recognized that using the hot standby redundancy provides fast restoration in the
case of failures. However the redundant elements are exposed to working stresses before …