نتایج جستجو برای: backup coverage

تعداد نتایج: 92473  

Journal: :The Journal of the Kentucky Medical Association 2009
John Myers Guy Brock Savitri Appana Laman Gray

PURPOSE The American College of Cardiology, the American Heart Association, and the Society for Cardiovascular Angiography and Interventions strongly recommend that primary Percutaneous Coronary Intervention (PCI) should be performed in facilities that have an experienced cardiovascular surgical team available as emergency backup for all procedures. The current study investigates the medical so...

2007
Heejo Lee

Process allocation is important for fault-tolerant multi-computer systems since it directly aaects the performance and dependability of the system. In this paper, we consider load-balancing process allocation for fault-tolerant systems that balances the load before as well as after faults start to degrade the performance of the system. We show two schemes to tolerate multiple faults in the pass...

2015
Caetano Sauer Goetz Graefe Theo Härder

When persistent storage fails, traditional media recovery first restores an old backup image followed by replaying the recovery log since the last backup operation. Restoring a backup can take hours, but log replay often takes much longer due to its random access pattern. We introduce single-pass restore, a technique in which restoration of all backups and log replay are performed in a single o...

2013
Stephen Smaldone Grant Wallace Windsor W. Hsu

Physical level backups offer increased performance in terms of throughput and scalability as compared to logical backup models, while still maintaining logical consistency [2]. As the trend toward virtualization grows, virtual machine backups (a form of physical backup) are even more important, while becoming easier to perform. The downside is that physical backup generally requires more storag...

2009
Anwar Sadat Gour Karmakar Arkady Zaslavsky Mohamed Medhat Gaber

One of the major challenges in wireless sensor networks (WSN) is to meet the energy constraint of its sensor nodes while ensuring reliability of the system. Clustering is an effective self-organization approach to offer energy-efficient communication for WSNs. However, energy of a sensor node dynamically decreases when it plays a role of a cluster head. As a result some nodes die faster that sh...

Journal: :Electronic Notes in Theoretical Computer Science 2006

Journal: :Nature Reviews Molecular Cell Biology 2011

Journal: :Information Technology and Libraries 1981

2003
Wensheng He Arun K. Somani

we consider path-based protection methods for twolink failures in mesh optical networks. Two link-disjoint backup paths are pre-computed for each source and destination node pair. We identify the scenarios where the backup paths can share their wavelengths without violating 100% restoration guarantee (backup multiplexing). We use integer programming to optimize the total capacity requirement fo...

Journal: :Computers & OR 1998
Chae Y. Lee Seok Joo Koh

We propose a design of self-healing ATM virtual path (VP) networks based on backup VP. The backup VP is a preassigned virtual path to restore the traffic after a network failure. It is known that the self-healing scheme based on the backup VP is simple, fast and easy to implement. Given a set of bandwidth requirements and original routes for target demands, the design is to find the backup rout...

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