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This work presents a new scheme of reliability mechanism in storage systems. The new scheme defines reliability and protects data in the scope of file, which is very different from traditional strategies, which protect data in the scopes of storage block or the whole device. The scheme provides the possibility to store highly reliable files and normal ones under the same file system, increasing flexibilities...
In the existing studies on fault-tolerant scheduling, the active replication schema makes use of ε + 1 replicas for each task to tolerate E failures. However, in this paper, we show that it does not always lead to a higher reliability with more replicas. Besides, the more replicas implies more resource consumption and higher economic cost. To address this problem, with the target to satisfy the user's...
Managing the execution of scientific applications in a heterogeneous grid computing environment can be a daunting task, particularly for long running jobs. Increasing fault tolerance by checkpointing and migrating jobs between resources requires expertise and time of the scientist. Automation of such tasks can allow the scientist to focus more on the scientific results and less on the technical details...
The major challenge in Grid environment is fault tolerance. Faults ranging from machine crashes, media failures, operator errors and random data corruption results in loss of data, both temporarily and permanently. The paper proposes a solution for handling faults in grid environment. Fault-Tolerance using Adaptive Replication in Grid Computing (FTARG) is an adaptive replication middleware which addresses...
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