Red Hat on Wednesday announced a significant departure from its current business plan, saying its flagship Linux product will be available on Amazon.com's Elastic Computing Cloud online service.
Note that I made a grave error of thinking before writing this article: I forgot the copy-on-write page sharing of modern Unices. I added two paragraphs to this article that should clarify the point. Thanks for your comment, Alex.
In early 2006, Marshall University laid out a plan to migrate HOBBIT (Figure 1), an HP OpenVMS cluster handling university-wide e-mail services. Plagued with increasing spam attacks, this cluster experienced severe performance degradation. Although our employee e-mail store was moved to Microsoft Exchange in recent years, e-mail routing, mailing list and student e-mail store (including IMAP and POP3 services) were still served by OpenVMS with about 30,000 active users. HOBBIT's e-mail software, PMDF, provided a rather limited feature set while charging a high licensing fee. A major bottleneck was discovered on its external disk storage system: the dated storage technology resulted in a limited disk I/O throughput (40MB/second at maximal) in an e-mail system doing intensive I/O operations.
Y. Yang, J. Zhang, и B. Kisiel. Proc. of SIGIR-03and 26th ACM International Conference on Research and Development in Information Retrieval, стр. 96-103. ACM Press, (августа 2003)
T. George, и S. Merugu. Proceedings of the 5th IEEE Conference on Data Mining (ICDM), стр. 625-628. Los Alamitos, CA, USA, IEEE Computer Society, (2005)
M. Bilal, и S. Kang. (2017)cite arxiv:1704.02683Comment: This article is accepted for the publication in Cluster Computing-The Journal of Networks, Software Tools and Applications. Print ISSN 1386-7857, Online ISSN 1573-7543.