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Computerized data has become critical to the survival of an enterprise. Companies must have a strategy for recovering their data should a disaster such as a fire destroy the primary data center. Current mechanisms offer data managers a stark choice: rely on affordable tape but risk the loss of a full day of data and face many hours or even days to recover,(More)
As le systems grow i n size, ensuring that data is safely stored becomes more and more diicult. Historically , le system backup strategies have focused on logical backup where les are written in their entirety to the backup media. An alternative i s p h ys-ical backup where the disk blocks that make up the le system are written to the backup media. This(More)
There is a great deal of research about improving Web server performance and building better, faster servers, but little research in characterizing servers and the load imposed upon them. While some tremendously popular and busy sites, such as receive several million hits per day, most servers are never subjected to loads of this magnitude. This paper(More)
World Wide Web clients and servers have become some of the most important applications in our computing base, and we need realistic and meaningful ways of measuring their performance. Current server benchmarks do not capture the wide variation that we see in servers and are not accurate in their characterization of web traffic. In this paper, we present a(More)
World Wide Web clients and servers have become some of the most important applications in our computing base, and we need realistic and meaningful ways of measuring their performance. Current server benchmarks do not capture the wide variation that we see in servers and are not accurate in their characterization of web traffic. In this paper, we present a(More)
and as otherwise expressly provided herein, no part of this publication may be reproduced in any form or by any means, electronic, online or mechanical , including the use of information storage and retrieval systems, without permission in writing from the copyright holder. Permission is hereby granted to nonprofit institutions to reproduce and distribute(More)
  • Giza Cc, Kutcher Js, +8 authors Thurman
  • 2016
of evidence-based guideline update: evaluation and management of concussion in sports. Report of the Guideline Development Subcommittee of the American Academy of Neurology. Recommendations Major Recommendations Definitions of the levels of the recommendations (A, B, C, U) and classification of the evidence (Class I-IV) are provided at the end of the "Major(More)