Expanding Choice: Moving to Linux and Open Source with by Jason Williams

By Jason Williams

Expanding selection: relocating to Linux and Open resource with Novell Open company Server is a concise, authoritative advisor for IT pros to assist overview and enforce Novell's open resource applied sciences. it is possible for you to to appreciate and determine some great benefits of open resource applied sciences in the course of the dialogue of particular, customer-tested implementation suggestions for either open resource and conventional software program. additionally, you will overview the advantages and prices of either open resource and closed resource software program structures. learn the way Novell's new Open firm Server combines the alternative and adaptability of SUSE Linux with the reliability of Novell's confirmed networking software program in Expanding selection: relocating to Linux and Open resource with Novell Open company Server.

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Google is reported to have 15,000 Intel processors running Linux that are used to index more than three billion documents and handle 150 million searches per day. Linux clustering capabilities are outstanding with practical applications from finite element analysis to financial simulations. Clustering is enabled using separate packages, Beowulf and Heartbeat. Beowulf includes a message-passing interface and bonding network software between parallel virtual machines. This provides for distributed interprocess communications and a distributed file system for applications that have been enabled for parallel processing.

Windows code has evolved over the years from a desktop operating system with new functionality and patches added, creating an unwieldy collection of services that is full of potential security vulnerabilities. A major culprit is unmanaged codethe capability to initiate processes with access across OS functions without the protection of a sandbox or protected area. Many Windows modules rely on complex interdependencies that are very difficult to compartmentalize and secure. Outlook is linked to Internet Explorer, and a security hole in one leads to a security breach in the other.

Customers report that Linux servers have gone through dozens of upgrades and have never been rebooted. 43 44 IBM has performed extensive Linux stress tests with heavy-stress workloads on Linux kernel components, such as file system, disk I/O, memory management, scheduling, and system calls, as well as TCP, NFS, and other test components. The tests demonstrate that the Linux system is reliable and stable over long durations, and can provide a robust, enterprise-level environment. It's worth noting that IBM has ported Linux to every system they sell, including the IBM S/390.

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